A hybrid polymer protective layer with uniform Li⁺ flux and self-adaption enabling dendrite-free Li metal anodes.

ABSTRACT: Lithium (Li) metal is considered as an ideal negative electrode material for next-generation secondary batteries; however, the hideous dendrite growth and parasitic reactions hinder the practical applications of Li metal batteries. Herein, a hybrid polymer film composed of polyvinyl alcohol (PVA) and polyacrylic acid (PAA) is adopted as an artificial protective layer to inhibit the dendritic formation and side reactions in Li metal anodes. PVA with large quantities of polar functional groups can induce even distribution of Li ions (Li⁺). Alternatively, PAA can in situ react with Li metal to form highly elastic and ionic conducting lithium polyacrylic acid (LiPAA), thereby enabling tight contact and flexible self-adaption with Li metal anodes. Therefore, such a rationally

SUBMITTER: We C 

PROVIDER: S-EPMC10496765 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature