Facile interfacial modification via in-situ ultraviolet solidified gel polymer electrolyte for high-performance solid-state lithium ion batteries

Autor: J.P. Tu, X.L. Wang, Ruochen Xu, Zhehe Yao, X.H. Xia, Dong Xie, J.B. Wu, Yanjun Xu, S.Z. Zhang, Yang Xia
Rok vydání: 2019
Předmět:
Zdroj: Journal of Power Sources. 409:31-37
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2018.10.088
Popis: The poor interfacial contact between electrode materials and electrolyte has become a major obstacle to the development and application of solid-state batteries. In this work, we report a facile method to realize interfacial modification with the help of in-situ ultraviolet solidified gel polymer electrolyte, which is completely compatible with commercial LiFePO4 and cellulose membrane forming stable composite cathode and cellulose membrane-gel polymer electrolyte. Two intimate interfaces between LiFePO4 and gel polymer electrolyte as well as composite cathode and cellulose membrane-based composite electrolyte are achieved to facilitate fast transfer of lithium ions at the interface. The assembled solid-state cell exhibits lower interfacial resistance, reduced polarization, higher rate capability, and more stable cycling performance than other routine counterparts. This work provides a new way for fabrication of novel advanced solid-state electrolytes and electrodes for applications in solid-state batteries.
Databáze: OpenAIRE