锂镧锆氧（LLZO）基固态锂电池界面关键问题研究进展

翟朋博, 常冬梅, 毕志杰, 赵宁, 郭向欣

Research progress on key interfacial issues in lithium lanthanum zirconium oxide-based solid-state

Pengbo ZHAI, Dongmei CHANG, Zhijie BI, Ning ZHAO, Xiangxin GUO

图4 (a) 使用低熔点Li2.3C0.7B0.3O3 作为助熔剂，利用高温烧结在LiCoO2 和LLZO表面生成稳定的Li2.3-x C0.7+x B0.3-x O3 界面层[51]；(b) 基于表面去除碳酸锂层的LLZO与PEO所得复合电解质组装的固态全电池示意图[36]；(c) 正极支撑固体电解质复合膜的工艺方案示意图及相对应的照片及SEM图片[52]

Fig. 4 (a) Li2.3-x C0.7+x B0.3-x O3 solid electrolyte interphase coated on both LLZO and LiCoO2 through the reaction between the Li2.3C0.7B0.3O3 solder and the Li2CO3 layers[51]. (b) Schematic illustration of solid-state battery based on Li2CO3 free LLZO/PEO composite electrolyte[36]. (c) Schematic illustration and corresponding photographs and SEM images of cathode supported composite electrolyte[52]