China's use of graphene developed kilowatt-class aluminum air batteries: energy density up to 510Wh / Kg

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Reporters learned from the Chinese Academy of Sciences Ningbo Materials, the research team recently developed a based on the graphene air cathode aluminum air battery power generation system, the battery system energy density up to 510Wh / Kg (watt hour per kilogram), the capacity of 20 kwh, the output power 1000 watts. The practical demonstration shows that the battery system can simultaneously supply power to a television set, a computer, an electric fan and 10 60-watt light bulbs to verify the power generation capability of the aluminum-air battery system.

Graphene is called the "fighter" in materials. Our country has developed a kilowatt-class aluminum air battery with graphene, which is a major breakthrough in the field of new energy and new materials.

Chinese Academy of Sciences, Ningbo Institute of Technology, Senior Engineer Xue Jian told reporters that the core of aluminum air batteries are doped with graphene cathode catalyst. The product uses an aluminum plate as the anode. The air cathode, which is inserted into the graphene-based composite catalyst, is filled with the electrolyte and the aluminum reacts with the air to produce electricity.

This aluminum air battery now has 22 national patents, can be used for electric vehicles, communications base stations and other fields. Because of the use of graphene-based composite oxide as a catalyst, the dispersion of the material is good, can reduce the battery's internal friction, and the aluminum air battery is several times higher than ordinary lithium battery, greatly improving the battery life.

If used in a new source car, you can reduce the battery size, so that the body light, greatly increase the mileage; if used for mobile phone charging treasure, you can greatly increase the output power; and communication base station if you use this battery, the advantage is obvious At present, China's communications base station is a lead-acid battery, once every two or three years, for some remote areas is very difficult to update, but the life of aluminum air battery 15 to 20 years, to a large extent possible to solve this A problem.

Reporter also learned that in the future aluminum air batteries can also be used lantern, beacon light, because seafarers encountered emergency power shortage case, scoop point seawater, connected to the wire you can generate electricity. For some ALICE this can also make the journey safer and more convenient.

According to Dr. Zhao Zhao-ping, a researcher at Key Laboratory of Applied Graphene Research in Zhejiang Province, the pilot production line for cathode test of aluminum air cells with graphene-based composite oxide as catalyst has been completed and can be mass-produced in the future.


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