The hottest super battery is coming. Zhejiang Univ

2022-09-26
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The super battery came to Zhejiang University to develop a new material battery, which is fully charged in 1.1 seconds

scientists at Zhejiang University used graphene film as the cathode material to develop a new type of aluminum graphene battery. This kind of battery has a long service life and can be fully charged in a very short time. It can work normally in the temperature range of 40 ℃ to 120 ℃ when it falls off or deforms locally below zero. This innovation points out an important direction for the practicality of aluminum ion batteries. Scientists at Zhejiang University have developed a new type of aluminum wear and fatigue graphene battery using graphene film as the cathode material. This kind of battery has a long service life and can be fully charged in a very short time. It can work normally in the temperature range of minus 40 ℃ to 120 ℃. This innovation points out an important direction for the practicality of aluminum ion batteries

aluminum ion battery is an excellent new type of battery. The key to its application is to find a suitable cathode material. The research group of Professor Gao Gao of the Department of polymer science and technology of Zhejiang University chose graphene, a magical material, and prepared a unique graphene film with innovative technology as the cathode material, which greatly improved the overall performance of aluminum ion batteries and has a promising prospect of competing with the mainstream lithium batteries and supercapacitors. Relevant papers were recently published in the internationally renowned journal progress of science

the battery capacity is shown by its endurance. Generally, with repeated charging and discharging, the capacitance of the battery will continue to decrease, which is what we call not durable. Gaogao said that the aluminum graphene battery is excellent at this point. This kind of battery has experienced 250000 charging and discharging cycles, and the charging and discharging efficiency is still as high as 91%, with little capacity loss. In other words, if the smart battery is used, it can be used for nearly 70 years even if it is recharged 10 times a day

the rate performance of this aluminum graphene battery is also very excellent, which shows that it can charge quickly under high current while maintaining a high specific capacity. Now some smart phones also have the function of fast charging. It seems that the battery is full soon, but the actual battery life is not long. Gaogao said that the current laboratory data of this new battery is that it can be fully charged in 1.1 seconds, which is less than the loss of electric capacity. If it is used in the future, it is completely possible to charge for 5 seconds and talk for 2 hours

aluminum graphene batteries are not inferior to supercapacitors in magnification performance and cycle life, and are far superior to lithium batteries. Although there is still a gap with lithium batteries in energy density, it is significantly higher than supercapacitors. Gaogao said that in the face of lithium batteries and supercapacitors, aluminum graphene batteries have shown specific advantages, which can be called superbatteries

aluminum graphene batteries also have some unparalleled characteristics of other current batteries. At low temperature of minus 40 ℃, the aluminum graphene battery can still charge and discharge stably for 1000 times, and at high temperature of 100 ℃, it can charge and discharge stably for 45000 times. Even if the battery cell is exposed to the flame, it will not catch fire or explode. This wide temperature range has laid a foundation for the future use of aluminum ion batteries under extreme temperature conditions. This kind of battery is also very flexible, and its capacity is completely maintained after 10000 bends, showing its application potential in wearable flexible electronic devices

the excellent performance of super battery comes from the excellent microstructure and macro efficiency of graphene film as cathode material. The excellence of many important properties of batteries depends on the extent to which electrons and ions can flow smoothly between the positive and negative electrodes. Compared with other cathode materials, it also meets the experimental force. The graphene film prepared by the superb research group has high quality, no lattice defects, high orientation, and continuous pores. It is like a highway extending in all directions, allowing electrons and ions to flow unimpeded

here comes the super battery. Zhejiang University has developed a new material battery, which is fully charged in 1.1 seconds. Some fields have been put into use and published by electromechanical equipment. If you need to reprint, please indicate the source of the article. For more industry information, please click attention: electromechanical industry

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