A novel PMA/PEG-based composite polymer electrolyte for all-solid-state sodium ion batteries
A novel PMA/PEG-based composite polymer electrolyte for all-solid-state sodium ion batteries
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一种新型PMA/PEG基全固态钠离子电池复合聚合物电解质
DOI:
10.1007/s12274-018-2144-3
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发表时间:
2018-07
期刊:
影响因子:
9.9
通讯作者:
Chen Jun
中科院分区:
文献类型:
--
作者:
Zhang Xuejing;Wang Xingchao;Liu Shuang;Tao Zhanliang;Chen Jun
In recent years, development of all-solid-state batteries has become a promising approach to improve the safety of batteries. Herein, we report the preparation of a new composite polymer electrolyte (CPE) for use in all-solid-state sodium ion batteries. The CPE comprising of poly(methacrylate) (PMA), poly(ethylene glycol) (PEG),α-Al2O3with acidic surface sites, and NaClO4exhibited high ionic conductivity (1.46 × 10-4S·cm-1at 70 °C), wide electrochemical stability window (4.5 V vs. Na+/Na), and good mechanical strength. With the introduction of the prepared CPE and Na3V2(PO4)3, the final all-solid-state sodium ion batteries showed good rate and cycle performance, with a high reversible capacity of 85 mAh·g-1when operated at 0.5 C (1 C = 118 mA·g–1) and 94.1% capacity retention rate after 350 cycles at 70 °C. Our work provides a novel solid electrolyte for the development of all-solid-state sodium ion batteries.
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