Artificial solid electrolyte interphase for aqueous lithium energy storage systems.

ABSTRACT: Aqueous lithium energy storage systems address environmental sustainability and safety issues. However, significant capacity fading after repeated cycles of charge-discharge and during float charge limit their practical application compared to their nonaqueous counterparts. We introduce an artificial solid electrolyte interphase (SEI) to the aqueous systems and report the use of graphene films as an artificial SEI (G-SEI) that substantially enhance the overall performance of an aqueous lithium battery and a supercapacitor. The thickness (1 to 50 nm) and the surface area (1 cm² to 1 m²) of the G-SEI are precisely controlled on the LiMn₂O₄-based cathode using the Langmuir trough-based techniques. The aqueous battery with a 10-nm-thick G-SEI exhibit

SUBMITTER: Zhi J 

PROVIDER: S-EPMC5590782 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature