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Anion‐tethered Single Lithium‐ion Conducting Polyelectrolytes through UV‐induced Free Radical Polymerization for Improved Morphological Stability of Lithium Metal Anodes by Yubin He; Chunyang Wang; Peichao Zou; Ruoqian Lin; Enyuan Hu; Huolin L. Xin is a Chemistry article available to read on EtoBox.
What is Anion‐tethered Single Lithium‐ion Conducting Polyelectrolytes through UV‐induced Free Radical Polymerization for Improved Morphological Stability of Lithium Metal Anodes about?
## Abstract Single Li^+^ ion conducting polyelectrolytes (SICs), which feature covalently tethered counter‐anions along their backbone, have the potential to mitigate dendrite formation by reducing concentration polarization and preventing salt depletion. However, due to their low ionic conductivity and complicated synthetic procedure, the successful validation of these claimed advantages in lithium metal (Li^0^) anode batteries remains limited. In this study, we fabricated a SIC electrolyte using a single‐step UV polymerization approach. The resulting electrolyte exhibited a high Li^+^ transference number (t~+~) of 0.85 and demonstrated good Li^+^ conductivity (6.3×10^−5^ S/cm at room temperature), which is comparable to that of a benchmark dual ion conductor (DIC, 9.1×10^−5^ S/cm). Benefitting from the high transference number of SIC, it displayed a three‐fold higher critical current density (2.4 mA/cm^2^) compared to DIC (0.8 mA/cm^2^) by successfully suppressing concentration polarization‐induced short‐circuiting. Additionally, the t~+~ significantly influenced the deposition behavior of Li^0^, with SIC yielding a uniform, compact, and mosaic‐like morphology, while the low t~+~
Who reads Anion‐tethered Single Lithium‐ion Conducting Polyelectrolytes through UV‐induced Free Radical Polymerization for Improved Morphological Stability of Lithium Metal Anodes?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Yubin He; Chunyang Wang; Peichao Zou; Ruoqian Lin; Enyuan Hu; Huolin L. Xin
- Publisher
- Wiley
- Published
- 2023
- Language
- EN
- Field
- Chemistry (Physical Sciences)