@article{Liu2025, 
author = {Jie Liu and Jinping Zhang and Yansong Liu and Ruiqi Zhao and Nuo Xu and Xingchen Song and Yuhu Li and Guolin Sun and Yanfeng Ma and Chenxi Li and Hongtao Zhang and Yongsheng Chen},
title = {An all-in-one polymer electrolyte enabled by acrylate-grafted separator copolymerization for high-performance lithium metal batteries},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {4},
pages = {94907323},
keywords = {lithium metal batteries, polymer electrolytes, high-voltage, long cycling},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907323},
doi = {10.26599/NR.2025.94907323},
abstract = {Polymer electrolytes featuring flexibility, processability, and compatibility with large-scale roll-to-roll fabrication processes have emerged as promising candidates for solid-state lithium metal batteries. Herein, we have designed and synthesized an all-in-one free-standing acrylate-grafted cellulose separator polymer electrolyte (ACSPE) through the copolymerization of acrylate-grafted cellulose separator (ACS). This synthetic strategy leverages the abundant hydroxyl groups in the cellulose separator, which are substituted with acryloyl chloride to form an acrylate-grafted separator. The resulting ACSPE exhibits a high ionic conductivity of 1.78 × 10−3 S·cm−1 at room temperature, improved oxidation stability (5.57 V), and enhanced mechanical strength (10.0 MPa), indicating its high compatibility with high-voltage cathode, Li metal anode, and scalable roll-to-roll production processes. Li|ACSPE|LiNi0.8Co0.1Mn0.1O2 (NCM811) cells exhibit a long stable cycle life of 1000 cycles at 0.5 C/1 C with capacity retention of 75.6%, achieving stable performance across a wide temperature range from 0 to 60 °C. Furthermore, when paired with a 50 μm thin Li foil, full cells using NCM811 cathode with a mass loading of 6 mg·cm−2 exhibit a high discharge capacity of 191.0 mAh·g−1 at 0.1 C and maintain excellent cycling stability with a retention rate of 93.3% after 100 cycles. This study provides valuable insights into the chemical modification and design strategies for improving the processability and performance of polymer-based solid-state batteries.}
}