Practical 4.7 V solid-state 18650 cylindrical lithium metal batteries with <i>in-situ</i> fabricated localized high-concentration polymer electrolytes.

ABSTRACT: In-situ fabricated gel polymer electrolytes (GPEs), characterized with superior interfacial properties and large-scale processibility, represent a promising electrolyte system for high-performance lithium metal batteries (LMBs). Herein, we propose an in-situ fabricated high-voltage GPE featuring a localized high-concentration solvation structure (LHCE-GPE). This tailored special solvation structure within a polymer matrix promotes the formation of an electrochemically robust electrode-electrolyte interphase. Furthermore, employing LHCE-GPE, Li||Li_1.2Ni_0.13Co_0.13Mn_0.54O₂ cells operating at 4.8 V demonstrate a high specific capacity of 248 mAh g^-1, and 4.5 V Li||LiNi_0.8Co_0.1Mn_0.1O

SUBMITTER: Song X 

PROVIDER: S-EPMC11887857 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature