Replacing conventional battery electrolyte additives with dioxolone derivatives for high-energy-density lithium-ion batteries.

ABSTRACT: Solid electrolyte interphases generated using electrolyte additives are key for anode-electrolyte interactions and for enhancing the lithium-ion battery lifespan. Classical solid electrolyte interphase additives, such as vinylene carbonate and fluoroethylene carbonate, have limited potential for simultaneously achieving a long lifespan and fast chargeability in high-energy-density lithium-ion batteries (LIBs). Here we report a next-generation synthetic additive approach that allows to form a highly stable electrode-electrolyte interface architecture from fluorinated and silylated electrolyte additives; it endures the lithiation-induced volume expansion of Si-embedded anodes and provides ion channels for facile Li-ion transport while protecting the Ni-rich LiNi_0.8Co_0.1

SUBMITTER: Park S 

PROVIDER: S-EPMC7864909 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature