Lithium-ion battery has greatly changed our lifestyle and the solid electrolyte interphase (SEI) covered on the graphite anode determines the service life of a battery. The formation method and the formation temperature at initial cycle of a battery determine the feature of the SEI. Herein, we investigate the gap of formation behavior in both a half cell (graphite matches with lithium anode) and a full cell (graphite matches with NCM, short for LiNi_xCo_yMn_1−x−yO₂) at different temperatures. We conclude that high temperature causes severe side reactions and low temperature will result in low ionic conductive SEI layer, the interface formed at room temperature owns the best ionic conductivity and stability.

锂离子电池极大地改变了我们的生活方式，石墨阳极上覆盖的固态电解质相（SEI）决定了电池的使用寿命。电池初始循环的形成方法和形成温度决定了SEI的特性。本文中，我们研究了半电池（石墨与锂阳极匹配）和全电池（石墨与NCM匹配）的形成行为的间隙，LiNi _x Co _y Mn _{1- x - y} O _2的缩写）在不同的温度下。我们得出的结论是，高温会引起严重的副反应，而低温会导致低离子导电SEI层，在室温下形成的界面具有最佳的离子导电性和稳定性。