And supercapacitors are two kinds of energy storage devices with great potential and wide application. Their principles, characteristics and scope of application are different, and each has its own advantages. From the beginning, graphene has been hailed as a revolutionary energy storage material because of its strong electrical conductivity.

5 minutes to charge! 500 kilometers range! Graphene battery power supply worry-free!

Graphene is a flat monoatomic film composed of carbon atoms. It is only 0.34 nanometers thick. One layer is 150,000 times the diameter of a human hair. It is currently the thinnest and strongest nanomaterial known in the world, with good light transmittance and folding ability. Because there is only one layer of atoms and the electrons are confined to one plane, graphene also has brand 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 battery to improve the battery’s charge and discharge performance and cycle life.

However, the technical difficulties in the preparation process are the biggest obstacle to realizing the potential of graphene. Currently, most graphene battery technologies are still in the experimental development stage. Do we really have to wait a long time?

Recently, Polycarbon Power, a wholly-owned subsidiary of Zhuhai Polycarbon Composite Materials Co., Ltd., has developed a true commercial graphene battery product, bringing graphene batteries in the laboratory stage into the battery market, and successfully solved the problem of graphene batteries. Unstable, slow charging speed, and low capacity of existing power supply batteries.

Zhuhai Polycarbon adopts the design concept of comprehensive performance balance, cleverly introduces new graphene-based composite carbon materials into the positive and negative electrodes of capacitor batteries, and combines ordinary supercapacitors with high-energy batteries to develop a new type of ultra-high performance battery.

First of all, graphene batteries will be first applied to electric vehicle batteries. It is expected that they will be able to meet with users at the end of this year or early next year. In the second half of next year, commercial graphene batteries in the field of mobile phone battery applications will also see you. At that time, mobile phone batteries Life fast charging capability and safety issues can be solved one by one.

A staff member of Zhuhai Polycarbon Composite Materials Co., Ltd. introduced that lithium iron phosphate batteries and lithium manganese acid batteries are common electric vehicle batteries on the market. These three kinds of batteries have their pros and cons, but car buyers can choose different batteries according to their pros and cons. There is also a graphene battery, which is a breakthrough innovation that can prevent spontaneous combustion like Tesla’s battery.

Polycarbon Power has mastered the preparation technology of graphene batteries. Adding graphene to the positive electrode material and the positive electrode material of the lithium battery reduces the internal resistance of the battery, thereby realizing high-speed and rapid charging and discharging, and greatly improving the cycle life of the battery. It also improves the performance of the battery to withstand high and low temperatures. This is the core technology of Polycarbon Power, which cannot be copied by other companies. The popularity of graphene batteries will be a leap for electric vehicles. Once graphene batteries are applied to electric vehicles, they will have disruptive changes to the entire automotive industry.

‘S core technology

The core technology mystery is to adopt the design concept of comprehensive performance balance, and cleverly introduce new graphene-based composite carbon materials into the positive and negative electrodes of capacitor batteries to achieve the combination of ordinary supercapacitors and high-energy batteries, thereby combining the excellent performance of ordinary supercapacitors and batteries Combined.

use

Graphene all-carbon capacitor battery is a new universal power source. It can solve the power problem of electric vehicles, and can also be applied to surface ships, submarines, unmanned aerial vehicles, missiles and aerospace fields. In particular, its unique safety performance will have a profound impact on the development of the electric vehicle industry. This product combines the advantages of the energy density of lithium batteries and the power density of supercapacitors. According to the new national standard, the cycle life of the product can reach more than 4000 times, and the operating temperature ranges from minus 30 degrees Celsius to over 70 degrees Celsius. On the basis of ensuring a certain mileage, high-current fast charging and long cycle life can be achieved.

Technological breakthrough

The new complete graphene carbon capacity battery has the advantages of large capacity, electric energy is converted into chemical energy, and then released into electricity. Its energy density is higher than the best current lithium batteries, and the power density of supercapacitors is close to that of the battery and the traditional capacitor structure. , Recognize the advantages of batteries and capacitors.

performance advantage

Safe and stable, the new graphene polycarbon capacitor battery, after being filled with a nail gun, it will short-circuit and no reaction; it will not explode when placed on fire.

The charging speed is fast, and the graphene polycarbon battery can be charged at a high current of 10C. It only takes 6 minutes to fully charge a single battery, and more than 95% can be fully charged in 10 minutes with hundreds of batteries connected in series.

High power density, up to 200W/KG~1000W/KG, which is equivalent to more than 3 times that of lithium batteries.

Excellent low temperature characteristics, can work in an environment of minus 30 ℃.

The principle and performance of capacitive lithium battery are fully analyzed

1. The working principle of supercapacitors and lithium batteries

2. Basic research and development of capacitive lithium battery

1) Frequent high current impacts have obvious adverse effects on battery performance;

2) Connecting large capacitors at both ends of the battery can indeed buffer the impact of large current on the battery, thereby prolonging the cycle life of the battery;

3) If the internal connection is used, each battery material particle is protected by the capacitor, which can extend the cycle life of the battery and improve the power characteristics of the battery.

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3. The working principle of capacitive lithium battery

The electric double-layer capacitive lithium battery is a combination of the working principle of the supercapacitor lithium battery, the electrode material of the lithium battery and the electrode material of the supercapacitor. The components have both the capacitive electric double-layer physical energy storage principle and the embedded off chemical storage. Lithium battery based on energy principle, thus forming a capacitive lithium battery.

Key technical issues in the development of capacitive lithium batteries:

Electrode element design;

working voltage matching problem;

electrolyte element design;

Structural design problem matching performance;

Application Technology.

4. Classification of capacitive lithium batteries

5. Capacitive lithium battery performance

6. Capacitive lithium battery applications

Electric vehicle power supply;

Electric motorcycle, bicycle power supply;

Various electric energy storage devices (wind energy, solar energy, energy storage cabinets, etc.);

electrical tools;