Probing Kinetics of Water-in-Salt Aqueous Batteries with Thick Porous Electrodes.

ABSTRACT: Aqueous electrochemical systems suffer from a low energy density due to a small voltage window of water (1.23 V). Using thicker electrodes to increase the energy density and highly concentrated "water-in-salt" (WIS) electrolytes to extend the voltage range can be a promising solution. However, thicker electrodes produce longer diffusion pathways across the electrode. The highly concentrated salts in WIS electrolytes alter the physicochemical properties which determine the transport behaviors of electrolytes. Understanding how these factors interplay to drive complex transport phenomena in WIS batteries with thick electrodes via deterministic analysis on the rate-limiting factors and kinetics is critical to enhance the rate-performance in these batteries. In this work, a multimodal approach

SUBMITTER: Lin CH 

PROVIDER: S-EPMC8554840 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature