Supercapacitors, Li-Ion Batteries, and Graphene Batteries Compared

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