How to choose a super capacitor module manufacturer?

Recently, a research team from Nanyang Technological University in Singapore developed a graphene supercapacitor specially designed for wearable electronic products. Due to its folding and bending properties, this graphene supercapacitor can be used not only for pressure sensors and chemical sensors but also for various small smart wearable devices and any flexible smart products. The product was announced at the 252nd American Chemical Society Symposium. At present, the supercapacitors developed in the market have high hardness and a certain thickness and are not suitable for some flexible smart wearable devices.The research team used graphene, which has thinness, strength, flexibility, and conductivity as raw material, to produce a miniature supercapacitor with good elasticity and ductility, which is more flexible and less perishable than the original rigid battery. Graphene supercapacitors will have higher efficacy and life cycle than standard capacitors and batteries. The research team said that, as a test product in the initial stage, the energy storage of supercapacitor products is relatively limited. During the test period, the operation time of the supercapacitor in the LCD device is one minute. The next stage of research will focus on how to increase the electrode surface area to improve performance. Battery storage.Overseas analysts predict that in the next few years, the compound annual growth rate of the global smart wearable device and service market will reach 22.65%, and the market demand for flexible graphene supercapacitors, which is one of the future standard equipment, will have greater potential. In recent years, the global application of graphene has been expanding, and breakthroughs have been made in the application of composite materials, flexible touch screens, supercapacitors and chips, and graphene will enter the stage of large-scale industrialization.As one of the graphene giants, my country's supercapacitor market is also growing rapidly. In July this year, my country launched the world's first graphene-based lithium-ion battery product, opening up the market space for the intersection of graphene and lithium batteries. The 'cooperation' between graphene and supercapacitors also verifies the application prospects of graphene in energy storage.In addition, as a strategic new material for my country's key development, the graphene industry has received support from local governments, and joint industrial zones have been established one after another. In September this year, Sichuan will set up the Graphene Application Technology Research Institute, focusing on the research and development of large-capacity supercapacitors.Coincidentally, the China International Graphene Resources Industry Alliance is expected to be officially established in September this year. In the country to accelerate the research and development of various graphene products and acceleration the pace of industrialization, the agency predicts that by 2020, the graphene market will reach a scale of 100 billion, and there is huge room for future development.

Super capacitor battery features:1. The charging speed is fast, and it can reach more than 95% of its rated capacity as long as it is charged for tens of seconds to a few minutes, and the lead-acid battery with the largest area now usually takes several hours to charge.2. Long cycle life, deep charge, and discharge cycles can be used up to 500,000 times. If the supercapacitor is charged and discharged 20 times a day, it can be used continuously for 68 years.3. Super high current discharge capacity, high energy conversion efficiency, small process loss, high current energy cycle efficiency;90%;4. High power density, up to 300W/kg~5000W/kg, which is equivalent to dozens of times that of ordinary batteries; the specific energy is greatly improved, lead-acid batteries can generally only reach 200W/kg, and the current research and development of supercapacitor batteries has reached 10KW/kg,5. The raw material composition, production, use, storage and dismantling process of the product are free of pollution, which is an ideal green power source;6. The charging and discharging circuit is simple, no charging circuit like a rechargeable battery is needed, the safety factor is high, and the long-term use is maintenance-free;7. Good ultra-low temperature characteristics, the ambient temperature range is as wide as -40℃～+70℃;8. The detection is convenient, and the remaining power can be directly read out;9. The monomer capacity range is usually 0.1F--3400F.

Recently, the new graphene-based high-energy lithium-ion capacitor technology developed by the Qingdao Energy Storage Institute of the Chinese Academy of Sciences passed the expert appraisal and evaluation organized by the China Petroleum and Chemical Industry Federation in Beijing. Experts agree that the achievement is highly innovative, and it is recommended to promote the industrialization process as soon as possible.The Energy Storage Institute designed and constructed the first pilot production line of lithium-ion capacitors in China, and developed the highest capacity 3500F/4V lithium-ion capacitor monomer. As a new type of energy storage device, supercapacitors have the advantages of high power density, short charging time, and long life, but their energy density has always been limited by the performance of electrode materials.The graphene supercapacitor developed this time has an energy density of up to 80 Wh/kg (specific energy) at a power density of 1 kW/kg (specific power), which is much higher than the current commercial activated carbon-based supercapacitors. The graphene-based supercapacitor has broad application prospects in high-power/high-energy-density dynamic energy storage devices.Considering that the energy storage device takes into account high power and high energy density, fast charging and fast discharging, it is very suitable as an 'energy bucket' for energy Internet technology. Based on this 'energy bucket', Qingdao Energy Storage Institute is building a small near-zero carbon emission demonstration area. At the beginning of 2015, Qingdao Energy Storage Institute used this device to build a 48V system for demonstration applications in electric vehicle power supply and other aspects. Recently, Qingdao Energy Storage Institute is striving to use this technology in the field of rail transit as soon as possible.According to statistics from IDTechEX, the global market for supercapacitors in 2014 was US$1.1 billion. It is estimated that by 2018, the global market size of supercapacitors will reach 3.2 billion US dollars, with a compound annual growth rate of 31%. Supercapacitor applications include electronic products, new energy, new energy vehicles, transportation, etc.In 2013, the size of China's supercapacitor market increased from 700 million yuan in 2009 to 1.92 billion yuan, with an annual growth rate of 32.51%. It is estimated that by 2016, the size of China's supercapacitor market will reach 3.38 billion yuan, with an annual growth rate of 22.08%.

Since the birth of graphene, people have been interested in the research and development and application prospects of this new material, and it has also become the darling of capital and the market. It is also widely used in the fields of electronics, aerospace special, new energy and new materials. On November 25, at the 20th 'Industrial Technology Information' press conference hosted by the Industrial Information Research Center of the Documentation and Information Center of the Chinese Academy of Sciences, the researchers combed the application of graphene in supercapacitors and biosensors in detail. The theme of the release focuses on the same field, and based on the authoritative database analysis, the future development trend of the two is judged.The following extracts related content in the field of supercapacitors:Graphene is the thinnest, lightest, hardest, most conductive and most flexible nanomaterial in the world. Its power is often staggering. A one-centimeter-thick graphene plate can make a 5-ton adult elephant stand on it; a mobile phone battery made of graphene can be fully charged in one second; a tablet computer made of graphene, which can be folded into the size of a mobile phone and put in a pocket at will.Since the birth of graphene, people have been interested in the research and development and application prospects of this new material, and it has also become the darling of capital and the market. It is also widely used in the fields of electronics, aerospace special, new energy and new materials.Qian Weizhong, a professor at the Department of Chemical Engineering of Tsinghua University, and Shi Jidong, a doctoral student at the National Center for Nanoscience and Technology, participated in the launch event as specially invited experts and discussed with the participants based on their current research work.Graphene supercapacitor technology: China is in a period of rapid growthToday's energy and environmental problems are becoming more and more serious, and the development demand for green transportation represented by new energy electric vehicles is increasing. Solving the problem of its braking energy recovery system is one of the keys to the development of the industry. Therefore, the industry has an increasingly urgent demand for electrochemical energy storage devices that take into account both high energy density and high power density. At the same time, supercapacitors have been given great expectations due to their long service life, short charging time, display capacity, unlimited materials, and good low-temperature performance.Graphene has good electrochemical properties, tensile properties and a structure that is easy to synthesize with other active materials. Similar to activated carbon, it can be used as a good and stable negative electrode material and is gradually applied to supercapacitor capacitor materials. The main research fields of graphene supercapacitors include: transition metal oxides for electrode materials, activated coal, nitrogen-doped graphene, current collector surfaces, etc.; related technologies include graphene oxide monomers, transition metal oxides, nitrogen Doping, coal activation, etc.With the discovery of the separation and preparation method of graphene by physicists at the University of Manchester in the United Kingdom in 2004, the application of graphene in supercapacitors has gradually begun to develop rapidly. At present, the average number of related technology patents is about 250 per year.

Compared with lithium batteries, supercapacitors have fast charging and discharging speed, high efficiency, long cycle life and high safety. These seem to be the antidote to the current dilemma of electric vehicle promotion. When the lithium battery industry is enjoying the chasing of the stars and the moon, one of its potential opponents has quietly approached, and it is the super capacitor. Recently, market research firm IDTechEx made a bold assertion that supercapacitors will destroy the lithium-ion battery market.In a report titled 'Supercapacitor Market 2014-2024', IDTechEx stated that by 2024, the global supercapacitor market will be worth $6.5 billion, and the market share will increase while swallowing the battery market. The so-called supercapacitor is a new type of energy storage device between traditional capacitors and rechargeable batteries. The basic principle is the same as that of other types of electric double-layer capacitors. The electric double-layer structure composed of activated carbon porous electrodes and electrolytes is used to obtain super-large capacity. Because of its large capacity, its external performance is the same as that of batteries, so it is also called 'capacitor battery'.Why do some people think it will replace lithium batteries? Mainly from its performance considerations. Compared with lithium batteries, supercapacitors have fast charging and discharging speed, high efficiency, long cycle life and high safety. These seem to be the antidote to the current dilemma of electric vehicle promotion. The world's first supercapacitor 100% low-floor tram, delivered in a single batch by CSR Zhuji in May this year, uses 7500F electric double-layer supercapacitors with a lifespan of 10 years and can be charged and discharged 1 million times. The train can be quickly charged every time it enters the station, the maximum charging time is 30 seconds, and the fastest charging can be completed in 10 seconds. The safety performance of supercapacitors higher than that of lithium batteries has also been demonstrated in various events in recent years.In the past year, Boeing, Apple, Tesla and other companies have been trapped in the safety of lithium batteries, causing frequent incidents. Experts also pointed out that lithium batteries are 'inherently difficult to move', and it is difficult to technically make up for their safety shortcomings. The supercapacitor itself, which uses electrostatic charge to store electrical energy, ensures its safety performance. Today, supercapacitors mainly play a supporting role in lithium batteries due to their low energy density.However, due to the application of 'universal material' graphene, the footsteps of supercapacitors to replace lithium batteries seem to be getting closer. Although there are many debates at home and abroad, no consensus has been reached. However, compared with the high enthusiasm for lithium batteries in China, the approach of many European and American countries is more balanced. Taking Germany as an example, the 'German National Electric Vehicle Development Plan' promulgated in 2008 places the research and development of supercapacitors and lithium batteries on the same equal position.In the industrialization of supercapacitors, some companies in the United States, Japan, Russia, Switzerland, South Korea, and France are currently in a leading position with years of research and development and technology accumulation. Such as Maxwell in the United States, Nec, Panasonic, Tokin in Japan and Econd in Russia, etc., these companies currently occupy most of the global market.Among them, Maxwell was the first to taste the big cake from the Chinese market. According to Alexander Potter, an analyst at PiperJaffray, an American investment bank, Yutong is currently Maxwell's largest customer, and the order growth is still accelerating. In recent years, some Chinese companies have also begun to actively set foot in this industry due to their optimism about the broad application prospects in this field. However, due to the high technical barriers, before 2012, there were more than 50 domestic manufacturers engaged in the research and development of large-capacity supercapacitors, but only more than 10 manufacturers were able to mass-produce and reach the practical level.However, given that supercapacitors can be used in various industries such as new energy power generation, smart grids, new energy vehicles, energy-saving buildings, industrial energy conservation and emission reduction, whether or not they will replace lithium batteries in ten years, its use determines its strategic value. .

A scientist in Egypt has developed a way to make supercapacitors and batteries that use graphene to recharge in seconds and last a long time. The scientist conducted his research at UCLA.Graphene is a new type of material with a two-dimensional network structure composed of carbon atoms. It has the characteristics of flexibility, high density, and extremely fast electron movement.Maher· Gaudí is a researcher at the University of California, Los Angeles, and teaching and researcher at Cairo University in Egypt. He said that while researching practical ways to extract graphene, he discovered many excellent properties of graphene, thanks to these properties, supercapacitors made of graphene can store twice as much electricity as existing supercapacitors.Supercapacitors are mainly used to store the electricity generated by solar panels, and China and the Netherlands have already used supercapacitors in practical applications.Gaudí emphasized that the supercapacitor made of graphene has the characteristic that the charging process only takes 1 second, and this is still under the premise that the charging process has a response time of 30 milliseconds. In fact, the current charging process of supercapacitors takes about 90 seconds. At the same time, this capacitor is very small, only 7 to 8 microns thick, while the diameter of a human hair is 50 microns.The Egyptian scientist said that graphene could be used to create batteries for smartphones, tablets, and laptops. The battery has an average charge time of 30 seconds, and this short 30-second charge time can keep laptops working for days and smartphones and tablets for weeks.He also pointed out that graphene batteries are flexible and foldable; in addition, it is a non-toxic material and environmentally friendly.Gaudí said that his research results will appear in commercial products in just a few years, and he has selected a company called Maxwell Technology for commercial production.This innovation by Gaudi is a major shift in the battery and supercapacitor industry. Compared with the computer and electronics industries, the battery and supercapacitor industries have not developed significantly, but the latter plays a huge role in the former. Therefore, Gaudi said that graphene-based batteries and capacitors will greatly promote the development of the above industries.

Recently, a research team from Nanyang Technological University in Singapore developed a graphene supercapacitor specially designed for wearable electronic products. Due to its folding and bending properties, this graphene supercapacitor can be used not only for pressure sensors and chemical sensors but also for various small smart wearable devices and any flexible smart products. The product was announced at the 252nd American Chemical Society Symposium. At present, the supercapacitors developed in the market have high hardness and a certain thickness and are not suitable for some flexible smart wearable devices. The research team used graphene, which has thinness, strength, flexibility, and conductivity as raw material, to produce a miniature supercapacitor with good elasticity and ductility, which is more flexible and less perishable than the original rigid battery.Graphene supercapacitors will have higher efficacy and life cycle than standard capacitors and batteries. The research team said that, as a test product in the initial stage, the energy storage of supercapacitor products is relatively limited. During the test period, the operation time of the supercapacitor in the LCD device is one minute. The next stage of research will focus on how to increase the electrode surface area to improve performance. Battery storage. Overseas analysts predict that in the next few years, the compound annual growth rate of the global smart wearable device and service market will reach 22.65%, and the market demand for flexible graphene supercapacitors, which is one of the future standard equipment, will have greater potential.In recent years, the global application of graphene has been expanding, and breakthroughs have been made in the application of composite materials, flexible touch screens, supercapacitors and chips, and graphene will enter the stage of large-scale industrialization. As one of the graphene giants, my country's supercapacitor market is also growing rapidly. In July this year, my country launched the world's first graphene-based lithium-ion battery product, opening up the market space for the intersection of graphene and lithium batteries. The 'cooperation' between graphene and supercapacitors also verifies the application prospects of graphene in energy storage. Low temperature lithium iron phosphate battery 3.2V 20A -20℃ charging, -40℃ 3C discharge capacity ≥70% Charging temperature: -20~45℃-Discharge temperature: -40~+55℃-40℃ support maximum discharge rate: 3C-40℃ 3C discharge capacity retention rate ≥70% Click for details In addition, as a strategic new material developed by my country, the graphene industry has received support from local governments, and joint industrial zones have been established one after another. In September this year, Sichuan will set up the Graphene Application Technology Research Institute, focusing on the research and development of large-capacity supercapacitors. Coincidentally, the China International Graphene Resources Industry Alliance is expected to be officially established in September this year. In the country to accelerate the research and development of various graphene products and acceleration the pace of industrialization, the agency predicts that by 2020, the graphene market will reach a scale of 100 billion, and there is huge room for future development.

Lithium-ion batteries and supercapacitors are two very potential and widely used energy storage devices. Their principles, characteristics, and scope of use are very different, and each has its own strengths. Since its inception, graphene has been regarded as a revolutionary energy storage material because of its strong electrical conductivity. Just imagine, if supercapacitors, lithium-ion batteries and graphene are combined, what kind of sparks will collide? Charge for 5 minutes! 500 kilometers of battery life! Graphene batteries make power worry-free! Graphene, a single-atom-layer planar film composed of carbon atoms, has a thickness of only 0.34 nanometers, and the thickness of the single-layer is equivalent to one-hundred-thousandth of the diameter of a hair. It is the thinnest and hardest nanomaterial known in the world, with good light transmittance and foldable. Because there is only one layer of atoms, the movement of electrons is restricted to a plane, and graphene also has completely new electrical properties. Graphene is the most conductive material in the world. The graphene composite conductive powder is added to the traditional mobile phone lithium-ion battery, which improves the rate of charge-discharge performance and cycle life of the battery. However, technical difficulties in preparation are the biggest stumbling block preventing graphene from realizing its potential value. At present, most graphene battery technologies are still in the R&D and experimental stage. Do we really have to wait a long time? Low temperature lithium iron phosphate battery 3.2V 20A -20℃ charging, -40℃ 3C discharge capacity ≥70% Charging temperature: -20~45℃-Discharge temperature: -40~+55℃-40℃ support maximum discharge rate: 3C-40℃ 3C discharge capacity retention rate ≥70% Click for details A few days ago, Polycarbon Power, a wholly-owned subsidiary of Zhuhai Polycarbon Composites Co., Ltd., developed a real commercial graphene battery product, which will be in the laboratory stage in one fell swoop The graphene battery has been pulled into the battery market and successfully solved the problems of unstable, slow charging and low capacity of the existing power battery. Zhuhai Polycarbon adopts a comprehensive performance balance design idea, cleverly introduces a new graphene-based composite carbon material into the positive and negative electrodes of the capacitor battery, combines the general supercapacitor with the high-energy battery, and develops a new type of ultra-high performance battery. The first graphene battery will first be used in electric vehicle batteries. It is expected to meet users at the end of this year or early next year. In the second half of next year, commercial graphene batteries used in mobile phone batteries will also meet with you. At that time, mobile phone battery life, fast charging capability, and safety issues can be dealt with one by one.The staff of Zhuhai Polycarbon Composite Materials Co., Ltd. said that at present, the common electric vehicle batteries on the market are lithium iron phosphate batteries, ternary lithium-ion batteries, and lithium manganate batteries. These three batteries have their own advantages and disadvantages, but car buyers can choose different batteries according to different advantages and disadvantages. And there is another kind of battery, the graphene battery, which is a completely subversive creation, and at the same time can prevent events like the spontaneous combustion of Tesla car batteries from happening. Polycarbon Power has mastered the preparation technology of graphene batteries. By adding graphene to the anode and cathode materials of lithium-ion batteries, the internal resistance of the battery is reduced, so as to achieve high-rate fast charge and discharge and greatly improve the cycle life of the battery. At the same time, the performance of the battery to withstand high and low temperatures is also improved. This is the core technology of Polycarbon Power, which cannot be replicated by other companies. The popularity of graphene batteries will be a leap for electric vehicles. Once graphene batteries are used in electric vehicles, it will be a subversive change to the entire automotive industry. Low-temperature high energy density 18650 3350mAh-40℃ 0.5C Discharge capacity ≥60% Charging temperature: 0~45℃Discharge temperature: -40~+55℃Specific energy: 240Wh/kg

Lithium batteries and supercapacitors are two very potential and widely used energy storage devices. Their principles, characteristics, and application scope are very different, and each has its own strengths. Since its inception, graphene has been regarded as a revolutionary energy storage material because of its strong electrical conductivity. Just imagine, if supercapacitors, lithium batteries and graphene are combined, what kind of sparks will collide?Charge for 5 minutes! 500 kilometers of battery life! Graphene batteries make power worry-free!Graphene, a single-atom-layer planar film composed of carbon atoms, has a thickness of only 0.34 nanometers, and the thickness of the single-layer is equivalent to one-hundred-thousandth of the diameter of a hair. It is the thinnest and hardest nanomaterial known in the world, with good light transmittance and foldable. Because there is only one layer of atoms, and the movement of electrons is restricted to a single plane, graphene also has entirely new electrical properties. Graphene is the most conductive material in the world. The graphene composite conductive powder is added to the traditional lithium battery for mobile phones, which improves the rate of charge-discharge performance and cycle life of the battery.However, the technical difficulties of preparation are the biggest obstacles hindering graphene from realizing its potential value.“ Roadblock. At present, most graphene battery technologies are still in the experimental stage of research and development. Do we really have to wait a long time?A few days ago, Polycarbon Power, a wholly-owned subsidiary of Zhuhai Polycarbon Composites Co., Ltd., developed a real commercial graphene battery product, which will pull the graphene battery in the laboratory stage into the battery market in one fell swoop and successfully solve the existing problems. The problem of unstable power battery, slow charging and low capacity.Zhuhai Polycarbon adopts a comprehensive performance balance design idea, cleverly introduces a new graphene-based composite carbon material into the positive and negative electrodes of the capacitor battery, and combines ordinary supercapacitors with high-energy batteries to develop a new type of ultra-high performance battery.The first graphene battery will first be used in electric vehicle batteries. It is expected to meet users at the end of this year or early next year. In the second half of next year, commercial graphene batteries used in the field of mobile phone batteries will also meet with you. At that time, mobile phone battery life, fast charging ability and safety problems of the battery can be solved one by one.The staff of Zhuhai Polycarbon Composite Materials Co., Ltd. said that at present, the common electric vehicle batteries on the market are lithium iron phosphate batteries, ternary lithium batteries and lithium manganate batteries. These three batteries have their own advantages and disadvantages, but car buyers can choose different batteries according to different advantages and disadvantages. And there is another kind of battery, the graphene battery, which is a completely subversive creation, and at the same time, it can avoid the spontaneous combustion of a Tesla car battery.Polycarbon Power has mastered the preparation technology of graphene batteries. By adding graphene to the positive and negative materials of lithium batteries, the internal resistance of the battery is reduced, so as to achieve high-rate fast charging and fast discharging and greatly improve the cycle life of the battery. At the same time, the performance of the battery to withstand high and low temperatures is also improved. This is the core technology of Polycarbon Power, which cannot be replicated by other companies. The popularity of graphene batteries will be a leap for electric vehicles. Once graphene batteries are applied to electric vehicles, it will be a subversive change to the entire automotive industry.

Compared with lithium batteries, supercapacitors have fast charging and discharging speeds, high efficiency, long cycle life, and high safety. These seem to be the antidote to the current dilemma of electric vehicle promotion. When the lithium battery industry is enjoying the chasing of the stars and the moon, one of its potential opponents has quietly approached, and it is the supercapacitor. Recently, market research firm IDTechEx made a bold assertion that supercapacitors will destroy the lithium-ion battery market.In a report titled 'Supercapacitor Market 2014-2024', IDTechEx stated that by 2024, the global supercapacitor market will be worth $6.5 billion, and the market share will increase while swallowing the battery market. The so-called supercapacitor is a new type of energy storage device between traditional capacitors and rechargeable batteries. The basic principle is the same as that of other types of electric double-layer capacitors. The electric double-layer structure composed of activated carbon porous electrodes and electrolytes is used to obtain super-large capacity.Because of its large capacity, its external performance is the same as that of batteries, so it is also called a 'capacitor battery. Why do some people think that it will replace lithium batteries? Mainly from its performance considerations. Compared with lithium batteries, supercapacitors have fast charging and discharging speed, high efficiency, long cycle life and high safety. These seem to be the antidote to the current dilemma of electric vehicle promotion. The world's first supercapacitor 100% low-floor tram, delivered in a single batch by CSR Zhuji in May this year, uses 7500F electric double-layer supercapacitors with a lifespan of 10 years and can be charged and discharged 1 million times.The train can be quickly charged every time it enters the station, the maximum charging time is 30 seconds, and the fastest charging can be completed in 10 seconds. The safety performance of supercapacitors higher than that of lithium batteries has also been demonstrated in various events in recent years. In the past year, Boeing, Apple, Tesla and other companies have been trapped in the safety of lithium batteries, causing frequent incidents.Experts also pointed out that lithium batteries are 'inherently difficult to move, and it is difficult to technically make up for their safety shortcomings. The supercapacitor itself, which uses an electrostatic charge to store electrical energy, ensures its safe performance. Today, supercapacitors mainly play a supporting role in lithium batteries due to their low energy density.However, due to the application of 'universal material' graphene, the footsteps of supercapacitors to replace lithium batteries seem to be getting closer. Researchers hold flexible all-solid-state supercapacitors to demonstrate their performance. Although there are many debates at home and abroad, no consensus has been reached. However, compared with the high enthusiasm for lithium batteries in China, the approach of many European and American countries is more balanced. Taking Germany as an example, the 'German National Electric Vehicle Development Plan' promulgated in 2008 places the research and development of supercapacitors and lithium batteries in the same equal position.In the industrialization of supercapacitors, some companies in the United States, Japan, Russia, Switzerland, South Korea, and France are currently in a leading position with years of research and development and technology accumulation. Such as Maxwell in the United States, NEC, Panasonic, Tokin in Japan and Econd in Russia, etc., these companies currently occupy most of the global market. Among them, Maxwell was the first to taste the big cake from the Chinese market. According to Alexander Potter, an analyst at PiperJaffray, an American investment bank, Yutong is currently Maxwell's largest customer, and the order growth is still accelerating.In recent years, some Chinese companies have also begun to actively set foot in this industry due to their optimism about the broad application prospects in this field. However, due to the high technical barriers, before 2012, there were more than 50 domestic manufacturers engaged in the research and development of large-capacity supercapacitors, but only more than 10 manufacturers were able to mass-produce and reach the practical level. However, given that supercapacitors can be used in various industries such as new energy power generation, smart grids, new energy vehicles, energy-saving buildings, industrial energy conservation and emission reduction, whether or not they will replace lithium batteries in ten years, its use determines its strategic value.