Even though lithium ions work well for energy storage, lithium is an expensive metal with concerns regarding its long-term supply and environmental issues.

Sodium, on the other hand, is an abundant low-cost metal, and the main ingredient in seawater (and in kitchen salt). This makes sodium-ion batteries an interesting and sustainable alternative for reducing our need for critical raw materials. However, one major challenge is to increase the capacity.

At the current level of performance, sodium-ion batteries cannot compete with lithium-ion cells. One limiting factor is graphite, which is composed of stacked layers of graphene, and used as the anode in today’s lithium-ion batteries.

The ions intercalate in the graphite, which means that they can move in and out of the graphene layers and be stored for energy usage. Sodium ions are larger than lithium ions and interact differently. Therefore, they cannot be efficiently stored in the graphite structure. But the Chalmers researchers have come up with a novel way to solve this.

Jinhua Sun, a researcher at the Department of Industrial and Materials Science at Chalmers and first author of the scientific paper, published in Science Advances.

We have added a molecule spacer on one side of the graphene layer.

“When the layers are stacked together, the molecule creates larger space between graphene sheets and provides an interaction point, which leads to a significantly higher capacity,”

Ten times the energy capacity of standard graphite

Typically, the capacity of sodium intercalation in standard graphite is about 35 milliampere hours per gram (mAh g-1). This is less than one-tenth of the capacity for lithium-ion intercalation in graphite. With the novel graphene, the specific capacity for sodium ions is 332 milliampere hours per gram – approaching the value for lithium in graphite. The results also showed full reversibility and high cycling stability.

Professor Aleksandar Matic at the Department of Physics at Chalmers.

It was really exciting when we observed the sodium-ion intercalation with such high capacity.

“The research is still at an early stage, but the results are very promising. This shows that it’s possible to design graphene layers in an ordered structure that suits sodium ions, making it comparable to graphite,”

“Divine” Janus graphene opens doors to sustainable batteries

The study was initiated by Vincenzo Palermo in his previous role as Vice-Director of the Graphene Flagship, a European Commission-funded project coordinated by the Chalmers University of Technology.

The novel graphene has asymmetric chemical functionalization on opposite faces and is therefore often called Janus graphene, after the two-faced ancient Roman God Janus – the God of new beginnings, associated with doors and gates, and the first steps of a journey. In this case, the Janus graphene correlates well with roman mythology, potentially opening doors to high-capacity sodium-ion batteries.

Vincenzo Palermo, Affiliated Professor at the Department of Industrial and Materials Science at Chalmers.

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.

Step into a realm of unmatched power and versatility with the pioneering technology of Industrial High Voltage Batteries. In the dynamic landscape of industries, where reliability and efficiency are paramount, these batteries emerge as game-changers, providing the muscle required to fuel large-scale operations. In this article, we will explore the transformative impact of Industrial High Voltage Batteries on diverse sectors, emphasizing their potential to revolutionize energy storage and management on an industrial scale.

1. Redefining Industrial Energy Storage:

Industrial High Voltage Batteries stand as towering symbols of innovation in energy storage. Engineered to accommodate the colossal energy demands of industrial operations, these batteries leverage high voltage capabilities to provide uninterrupted power supply, stability, and enhanced efficiency.

2. High Voltage Powerhouse:

a. **Efficient Energy Storage:** Industrial High Voltage Batteries harness higher voltage levels to store substantial energy amounts, providing ample power for continuous industrial operations.

b. **Stability and Consistency:** The use of high voltage ensures consistent power output, mitigating the risk of disruptions and optimizing operational stability.

c. **Peak Demand Support:** These batteries efficiently manage peak energy demand, preventing grid strain and minimizing peak demand charges for industries.

3. Performance Advantages:

a. **Enhanced Output:** Industrial High Voltage Batteries deliver robust power output, meeting the energy-intensive needs of manufacturing, data centers, and heavy machinery.

b. **Load Balancing:** The ability to efficiently distribute power prevents energy wastage and ensures uniform energy utilization across various processes.

c. **Enhanced Sustainability:** By reducing reliance on non-renewable energy sources, these batteries align with industries' sustainability goals, lowering carbon emissions and enhancing eco-conscious practices.

4. Diverse Applications: 

a. **Manufacturing Sector:** Industrial High Voltage Batteries empower manufacturing units to maintain uninterrupted operations, improving productivity and minimizing downtime.

b. **Data Centers:** With their capacity to provide consistent power, these batteries are instrumental in ensuring continuous data center operations, safeguarding critical digital infrastructure.

c. **Transportation Industry:** In the electric vehicle segment, these batteries offer extended range and enhanced efficiency, contributing to the growth of sustainable transportation.

5. Leading the Industrial Revolution:

Industrial High Voltage Batteries are key players in the journey toward more efficient and sustainable industrial practices. Their integration marks a turning point, as industries increasingly seek energy solutions that align with their operational requirements and environmental responsibilities.

Conclusion:

Industrial High Voltage Batteries stand tall as symbols of industrial progress, innovation, and sustainability. As industries embrace the transformative potential of these batteries, they usher in a new era of energy management, resilience, and operational efficiency. Embrace the power, redefine the status quo, and lead the charge towards a future where Industrial High Voltage Batteries illuminate the path to progress.

The number of solar batteries needed to power a house depends on several factors, including the energy consumption of the house, the size of the solar panel system, the location of the house, and the desired level of energy independence. Here are the key steps to calculate how many solar batteries you might need:

1. **Determine Your Daily Energy Consumption:** Start by calculating your daily energy consumption in kilowatt-hours (kWh). You can find this information on your utility bills or by using energy monitoring devices. This figure will give you an idea of how much energy your solar system needs to generate.

2. **Size of Your Solar Panel System:** Your solar panel system's size is crucial because it determines how much energy your system can produce. Solar panels generate electricity when the sun is shining. The size of your system should be tailored to your energy needs and the amount of sunlight your location receives. On average, a typical residential solar panel system in

the United States might be around 5 to 10 kilowatts (kW).

3. **Battery Capacity:** Solar batteries come in various capacities, usually measured in kilowatt-hours (kWh). You'll need to choose a battery capacity that can store enough energy to cover your nighttime or cloudy day energy needs. This capacity depends on your daily energy consumption and how many days of backup power you want. For example, if you want to be completely off-grid and rely solely on solar and batteries, you may need several days of backup power.

4. **Location and Solar Resource:** The amount of sunlight your location receives plays a significant role. Sunnier regions will require fewer batteries because they can rely more on daily solar generation. Cloudier regions might require more batteries to compensate for reduced sunlight.

5. **Inverter Efficiency:** The efficiency of your inverter(s) also affects the number of batteries you need. Inverters convert the DC electricity produced by solar panels into the AC electricity used in your home. A more efficient inverter may reduce the size of the battery bank required.

6. **Load Management:** Implementing energy-efficient appliances and managing your energy consumption can help reduce the number of batteries needed. Efficient use of energy reduces the overall demand on your solar and battery system.

7. **Budget and Goals:** Your budget and energy independence goals will also influence the number of batteries you choose. You may decide to start with a smaller battery bank and expand it over time as needed.

It's essential to consult with a professional solar installer to design a system that meets your specific needs. They can perform a detailed analysis of your energy consumption, local solar conditions, and other factors to determine the appropriate size and number of solar batteries for your home. Keep in mind that technology is continually evolving, and battery storage options may become more efficient and cost-effective over time.

Shanghai Greentech will offer you a professional and Cost-effective solution basing on your real requirement, so contacting with us will be the best choice! 

With the rapid development of science and technology, our demand for energy is also increasing. In this context, solid-state batteries, as a new energy storage technology, have gradually attracted people's attention. This article will introduce the concept, principle, function and application scenarios of solid-state batteries in detail, and look forward to its future development prospects.

Part 1: Basic concepts of solid-state batteries

A solid-state battery is a battery that uses a solid electrolyte instead of a traditional liquid electrolyte. The positive electrode, negative electrode and electrolyte of this type of battery are all solid, so it is called a solid-state battery. Compared with traditional liquid batteries, solid-state batteries have higher energy density, safety and stability, and therefore have broad application prospects in electric vehicles, energy storage equipment and other fields.

Part 2: Working principle of solid-state batteries

The working principle of solid-state batteries is similar to traditional batteries, that is, the storage and release of electrical energy is achieved through chemical reactions between the positive and negative electrodes. The positive electrode materials are generally lithium-containing compounds, such as lithium iron phosphate, lithium cobalt oxide, etc.; the negative electrode materials are mostly graphite, metallic lithium, etc. During the charging process, lithium ions in the positive electrode material migrate to the negative electrode through the solid electrolyte and chemically react with the negative electrode material; during the discharge process, the opposite is true, and the lithium ions return from the negative electrode to the positive electrode through the solid electrolyte.

Part 3. The role and application scenarios of solid-state batteries

1. Electric vehicles: Solid-state batteries have high energy density and safety, so they are considered an ideal energy storage solution for electric vehicles. Electric vehicles using solid-state batteries have longer range, charge faster, and are less prone to safety accidents.

2. Energy storage equipment: Solid-state batteries are suitable for various energy storage equipment, such as household energy storage systems, industrial energy storage power stations, etc. Its high stability and long life are beneficial to reducing energy storage costs and improving energy utilization.

3. Portable devices: Due to their small size and light weight, solid-state batteries are very suitable for use in portable devices such as mobile phones and tablet computers. Its fast charging and long-term use characteristics can meet modern people's needs for electronic devices.

4. Solar energy and wind energy: Solar energy and wind energy are representatives of clean energy, but there are instability problems in their power generation process. Solid-state batteries can serve as energy storage media, converting unstable solar and wind energy into a stable supply of electricity.

Part 4: Advantages of solid-state batteries

1. Fast charging: Since solid-state electrolytes have high ionic conductivity, solid-state batteries can achieve fast charging, greatly shortening the charging time.

2. Long-term storage: Solid-state batteries have a long life and stability, can achieve long-term energy storage, and reduce the frequency and cost of battery replacement.

3. High safety: Traditional liquid batteries have safety hazards such as leakage and explosion, while solid-state batteries use solid electrolytes and are less prone to safety accidents.

Part 5: Prospects of solid-state batteries

With the advancement of science and technology and the development of industry, solid-state batteries are expected to be widely used in various fields in the future. The electric vehicle market will become one of the largest application areas for solid-state batteries, and the energy storage equipment and portable device markets will also usher in rapid development. In addition, with the increasing popularity of renewable energy sources such as solar energy and wind energy, the application of solid-state batteries in the field of clean energy will also be further expanded. Future technology development directions mainly include improving the energy density of solid-state batteries, reducing costs, and optimizing production processes. In short, solid-state batteries, as a new energy storage technology, have broad application prospects and advantages.

With the continuous advancement of technology and the development of industry, we believe that solid-state batteries will bring us cleaner and more efficient energy utilization in the future.