On December 1, Huawei's Central Research Institute Watt Lab announced that it has achieved significant research breakthroughs in the field of lithium-ion batteries: the industry's first high-temperature long-life graphene-based lithium-ion battery.
The experimental results show that the new high temperature resistant technology based on graphene can increase the upper limit of lithium ion battery use temperature by 10 °C, and the service life is twice that of ordinary lithium ion batteries. Li Yangxing, chief scientist of Huawei Watt Lab, revealed that the breakthrough mainly comes from three aspects: adding special additives to the electrolyte to remove traces of water and avoiding pyrolysis of the electrolyte; the positive electrode of the battery is modified by large single crystal ternary materials. The thermal stability of the material; at the same time, the use of new material graphene, can achieve efficient heat dissipation between the lithium-ion battery and the environment.
Huawei's research results will bring innovation to the energy storage business of communication base stations. For example, the working base life of the plug-in base station using the high-temperature lithium-ion battery in hot regions can reach more than 4 years, and the graphene-based lithium-ion battery will also help the electric vehicle to last for a long time in a high-temperature environment, and the safe flight under the high-temperature heating of the drone. .
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