Huawei graphene high temperature lithium-ion battery made a major breakthrough
Recently, Watts Laboratory, Huawei Central Research Institute, announced at the 57th Japan Battery Conference that it has made major research breakthroughs in the field of lithium-ion batteries and introduced the industry's first high-temperature long-life graphene-based lithium-ion battery. The experimental results show that graphene-based new high-temperature technology can increase the maximum temperature of lithium-ion battery 10 ℃, the service life of ordinary lithium-ion battery is 2 times. Dr. Li Yangxing, chief scientist of Huawei Watt Laboratory, pointed out that graphene-based high-temperature lithium-ion battery technology breakthrough mainly comes from three aspects: adding special additives in the electrolyte to remove traces of water, to avoid the electrolyte pyrolysis; Of the large single crystal ternary material to improve the thermal stability of the material; the same time, the use of new materials, graphene, lithium-ion battery can be achieved with efficient cooling environment. Under the same operating parameters, the temperature rise of the graphene-based high-temperature lithium-ion battery is 5 ℃ lower than that of the ordinary lithium-ion battery; the high-temperature cycling of 60 ℃ is 2000 times and the capacity retention rate still exceeds 70% ; 60 ℃ high temperature storage for 200 days, the capacity loss is less than 13%, "Dr. Li Yangxing said. The research results will bring innovation to the energy storage business of communication base stations. In hot areas using the high temperature lithium-ion battery base station operating life up to 4 years. Graphene-based lithium-ion battery will also help the electric car in the high temperature environment, long-lasting life, as well as the UAV safe flight under the heat. Last year, Huawei Watt Labs released the fast charge technology that can charge up to 48% of the capacity of a 3000mAh battery in 5 minutes at the 56th Battery Symposium in Japan. This has aroused widespread concern in the industry. According to Dr. Li Yangxing revealed that Huawei fast charging battery has been commercialized and will be officially released at the end of December this year, the super fast charge mobile phone.
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