Toward Practical Solid-State Polymer Lithium Batteries by In Situ Polymerization Process: A Review

摘要

Although there are various strategies for solid-state polymer lithium batteries(SSPLBs) manufacturing, the most promising is the in situ polymerizationprocess. The in situ polymerization process inherits good liquidelectrolyte/electrode interfacial contact and is compatible with existinglithium-ion batteries manufacturing processes, making it easy to achievescale-up production. However, most of the current studies on the in situpolymerization process are based on lab-level coin cells, while practical pouchcells are much less studied. There is a huge difference between lab-level coinSSPLBs and practical pouch SSPLBs. Here, as a complement to the existingreports and reviews, a systematic review of the challenges and designprinciples of in situ polymerization process for fabricating practical pouchSSPLBs is provided to enable a comprehensive understanding and strategicguidance for practical SSPLBs applications. This review thoroughly discussesrecent advances regarding the fabrication of SSPLBs using in situpolymerization process and presents the existing challenges and futureoutlook for the fabrication of practical SSPLBs by in situ polymerizationprocesses. Furthermore, the critical issues of electrode materials formanufacturing practical SSPLBs are highlighted during the in situpolymerization process, and an attempt is made to call more attention to theperformance of the practical pouch SSPLBs.