Enhancing Hydrophilicity of Thick Electrodes for High Energy Density Aqueous Batteries
oleh: Jungeun Lee, Hyeonsoo Lee, Cheol Bak, Youngsun Hong, Daeha Joung, Jeong Beom Ko, Yong Min Lee, Chanhoon Kim
| Format: | Article |
|---|---|
| Diterbitkan: | SpringerOpen 2023-04-01 |
Deskripsi
Highlights Sulfonated polyvinylidene fluoride (S-PVdF) binders with improved hydrophilicity were synthesized via a simple sulfonation process of conventional hydrophobic PVdF binders. The abundant sulfonate groups of S-PVdF binders significantly improved ionic conduction in thick electrodes (~ 6 mg cm−2), enabling improved reversible capacities under various current densities. The S-PVdF binders effectively suppressed cathode dissolution, resulting in enhanced capacity retention at higher temperature operations (45 °C).