Anionically-Reinforced Nanocellulose Separator Enables Dual Suppression of Zinc Dendrites and Polyiodide Shuttle for Long-Cycle Zn-I2 Batteries (IMAGE)
Caption
- Straw-derived carboxylated nanocellulose separator is modified by anionic polyacrylamide to further enhance the negative charge density.
- The separator exhibits ultrathin profile and exceptional mechanical strength, as well as enabling rapid zinc ion transport.
- The separator can not only effectively inhibit zinc dendrites and parasitic reactions but also significantly suppress polyiodide shuttle via electrostatic repulsion, contributing to remarkable performance of Zn-I2 batteries even under high mass loadings.
Credit
Wenhui Liu, Hong Ma, Lingli Zhao, Weiwei Qian, Bo Liu, Jizhang Chen*, Yagang Yao*.
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License
CC BY-NC-ND