Production of high-energy 6-Ah-level Li | |LiNi_0.83Co_0.11Mn_0.06O₂ multi-layer pouch cells via negative electrode protective layer coating strategy.

ABSTRACT: Stable lithium metal negative electrodes are desirable to produce high-energy batteries. However, when practical testing conditions are applied, lithium metal is unstable during battery cycling. Here, we propose poly(2-hydroxyethyl acrylate-co-sodium benzenesulfonate) (PHS) as negative electrode protective layer. The PHS contains soft poly (2-hydroxyethyl acrylate) and poly(sodium p-styrene sulfonate), which improve electrode flexibility, connection with the Cu current collector and transport of Li ions. Transmission electron cryomicroscopy measurements reveal that PHS induces the formation of a solid electrolyte interphase with a fluorinated rigid and crystalline internal structure. Furthermore, theoretical calculations suggest that the -SO₃^- group of poly(sodium p-s

SUBMITTER: Feng Y 

PROVIDER: S-EPMC10279762 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature