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- Title
A novel PMA/PEG-based composite polymer electrolyte for all-solid-state sodium ion batteries.
- Authors
Zhang, Xuejing; Wang, Xingchao; Liu, Shuang; Tao, Zhanliang; Chen, Jun
- Abstract
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-Al2O3 with acidic surface sites, and NaClO4 exhibited high ionic conductivity (1.46 × 10-4 S·cm-1 at 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-1 when 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.
- Publication
Nano Research, 2018, Vol 11, Issue 12, p6244
- ISSN
1998-0124
- Publication type
Article
- DOI
10.1007/s12274-018-2144-3