Achieving long cycle life for all-solid-state rechargeable Li-I₂ battery by a confined dissolution strategy.

ABSTRACT: Rechargeable Li-I₂ battery has attracted considerable attentions due to its high theoretical capacity, low cost and environment-friendliness. Dissolution of polyiodides are required to facilitate the electrochemical redox reaction of the I₂ cathode, which would lead to a harmful shuttle effect. All-solid-state Li-I₂ battery totally avoids the polyiodides shuttle in a liquid system. However, the insoluble discharge product at the conventional solid interface results in a sluggish electrochemical reaction and poor rechargeability. In this work, by adopting a well-designed hybrid electrolyte composed of a dispersion layer and a blocking layer, we successfully promote a new polyiodides chemistry and localize the polyiodides dissolution within a limited space ne

SUBMITTER: Cheng Z 

PROVIDER: S-EPMC8748797 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature