Recent progress of solid-state lithium batteries in China

Different from traditional lithium-ion battery, the solid-state lithium batteries (SSLBs) using solid electrolytes (SEs) have attracted much attention for their potential of high safety, high energy density, good rate performance, and wide operating temperature range in recent years. In China, the SSLB-relevant fundamental research and industrialization exploration are progressing rapidly. In this perspective, we present a timely overview of the recent research and development of SSLBs in China in the past 1 year, covering the latest achievements of SSLBs which used sulfide SEs, oxide SEs, solid polymer electrolytes, and halide SEs, respectively. Moreover, the government policies and the latest company industrialization process relative to SSLBs are comprehensively summarized.