Corrosion protection of lithium battery anode materials
作者
单位
1College of Materials and Chemistry、China Jiliang University、Hangzhou、Zhejiang、China 2College of Materials and Environmental Engineering、Hangzhou Di anzi University、Hangzhou、Zhejiang、China 3Department of Chemical Engineering、Tsinghua University、Beijing、China 4College of Materials、Zhejiang University of Technology、Hangzhou、Zhejiang、China
关键词
收录来源
International Corrosion Congress · 第22届国际腐蚀大会
摘要
Lithium metal negative electrode cause the generation and accumulation of dead lithium due to unstable SEI film, dendrite growth, and interface corrosion, which seriously deteriorate s battery performance and life. Lithium corrosion involves chemical and e lectrochemical corrosion, resulting in rapid loss of battery active substances, and substantial attenuation of battery performance and life. Through cryo-electron microscopy and three -electrode electrochemical technology, the corrosion science of the batte ry was deeply analyzed. T he effective strategy of passivation protection of the negative electrode by organic/inorganic composite coating was proposed. The corrosion inhibition rate reached 74%, and the battery cycle life was increased several times. Fig. 1 金属锂负极失效调控