Enhancing Hydrophilicity of Thick Electrodes for High Energy Density Aqueous Batteries.

ABSTRACT: Thick electrodes can substantially enhance the overall energy density of batteries. However, insufficient wettability of aqueous electrolytes toward electrodes with conventional hydrophobic binders severely limits utilization of active materials with increasing the thickness of electrodes for aqueous batteries, resulting in battery performance deterioration with a reduced capacity. Here, we demonstrate that controlling the hydrophilicity of the thicker electrodes is critical to enhancing the overall energy density of batteries. Hydrophilic binders are synthesized via a simple sulfonation process of conventional polyvinylidene fluoride binders, considering physicochemical properties such as mechanical properties and adhesion. The introduction of abundant sulfonate groups of binders (i) allo

SUBMITTER: Lee J 

PROVIDER: S-EPMC10086092 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature