Link between Alkali Metals in Salt Templates and in Electrolytes for Improved Carbon-Based Electrochemical Capacitors.

ABSTRACT: Various alkali metal (Li⁺, Na⁺, K⁺, Rb⁺, and Cs⁺) chlorides with Pluronic F127 were used as a soft-salt template for tuning the textural and structural properties of carbon. Highly conductive metal hydroxide solutions, where the cations are the same as those in the salt template, have been used as electrolytes. By increasing the size of the cation in the template, the textural properties of carbon, such as the specific surface area, micropore volume, and pore size, were remarkably enhanced. It directly translates to an increase in the specific capacitance of the electrode material. For a constant current charge/discharge at 0.1 A g^-1, the electrode composed of LiCl-T and operating with 1 mol L^-1 LiOH demonstrates

SUBMITTER: Platek-Mielczarek A 

PROVIDER: S-EPMC7821266 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature