Authors
Chao Ma, Shengzhuang Zhou, Zhun Cai, Honglin Liu, Yifan Li, Jiawei Wu, Weiwei Ji, Peng Gao, Huiqiao Li, Xizheng Liu
Published in
Small (Weinheim an der Bergstrasse, Germany). Pages e75688. Sep 10, 2026. Epub Sep 10, 2026.
Abstract
To maintain reliable voltage output under dynamic impact conditions, intrinsic, materials-level strategies are urgently needed to stabilize high-energy Li batteries. Here, a stress dispersive quasi-solid polymer electrolyte (SDPE) is proposed by constructing a crosslinked network from boroxine-junction tris(aryl-amide)-linked poly(2,2'-disulfonyl-4,4'-benzidine terephthalamide) for Ah-level Li batteries. This electrolyte integrates an ultra-rigid backbone for load distribution with more compliant boroxine junctions to accommodate localized deformation. As a result, it enables a durable Li plating/stripping for over 1400 h and delivers a high discharge capacity of 476.8 mAh g-1 in Li/Cr8O21 primary batteries, while retaining 77.2% of the initial capacity after 7 days of storage at 60°C. Importantly, this intrinsic stability translates to device-level reliability. Ah-level pouch cells employing SDPE maintain a stable open-circuit voltage under impacts exceeding 19,000 g, whereas the liquid-electrolyte counterpart exhibits an immediate 384 mV voltage drop. Moreover, no hazardous response is observed even under nail penetration of the pouch cell. Combined with force-constant analysis revealing a stiff-skeleton/compliant-junction stress-transfer hierarchy, these results establish a direct structure-function linkage between molecular design and impact-tolerant energy delivery. This work provides a viable pathway toward intrinsically resilient batteries for operation under extreme mechanical conditions.
PMID:
42723411
Bibliographic data and abstract were imported from PubMed on 11 Sep 2026.
Read full publication at:
Please sign in
to see all details.
Advertisement
Stats
- Recommendations n/a n/a positive of 0 vote(s)
- Views 9
- Comments 0