当前固体电解质与固态电池技术成熟度分析  

Analysis of technology readiness level of solid-state electrolyte and solid-state battery

作　　者：陈昕 赵宁 刘桂贤 郭向欣 CHEN Xin;ZHAO Ning;LIU Guixian;GUO Xiangxin(College of Physics,Qingdao University,Qingdao Shandong 266071,China)

机构地区：[1]青岛大学物理科学学院,山东青岛266071

出　　处：《电源技术》2024年第6期969-984,共16页Chinese Journal of Power Sources

基　　金：国家重点研发计划(2023YFB2503900);国家自然科学基金(52372203)。

摘　　要：开发低成本、综合性能优异的固体电解质材料体系及其相适配的固态电池是实现新型高能量密度、高安全性锂电池的必经之路。目前,国内外研究机构在大力推进固态电池的基础研究和产业化进程,其中,氧化物固体电解质、硫化物固体电解质、卤化物固体电解质和聚合物固态电解质受到关注程度最高。然而在固态电池层面,存在界面问题、循环寿命差等挑战,阻碍了产业化进程,部分企业采用固液混合电池策略进行过渡。对典型固体电解质材料及固态电池技术成熟度进行了分析,以期为行业发展提供参考。同时指出,固态电池作为一个复杂的系统,其性能不由固体电解质单一的优异特性决定,需要全面评估。The development for the solid-state electrolyte(SSEs)and solid-state battery(SSBs)with low cost and excellent overall performance is pivotal for achieving the lithium batteries with high energy density and high safety.Currently,numerous research institutions are vigorously pursuing thefundamental research and industrialization of SSBs,and the oxide,sulfide,halide and polymer SSEs have received attention specially.The interface issues and poor cycle performance of SSBs hinder the industrialization process.Therefore,certain companies have opted for solid-liquid hybrid batteries as an interim solution.The technology readiness level of the typical SSEs materials and SSBs was assessed to provide reference for industry development.The overall performance of SSBs,as a complex system,is not solely determined by the individual characteristics of the SSEs,so the comprehensive evaluation is needed.

关 键 词：固体电解质 固态锂电池 技术成熟度 产业化 

分 类 号：TM912.9[电气工程—电力电子与电力传动]