@article{ref1,
title="Self-protecting aqueous lithium-ion batteries",
journal="Small",
year="2022",
author="Yang, Yuewang and Bai, Zhaowen and Liu, Sijing and Zhu, Yinggang and Zheng, Jiongzhi and Chen, Guohua and Huang, Baoling",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="Capacity degradation and destructive hazards are two major challenges for the operation of lithium-ion batteries at high temperatures. Although adding flame retardants or fire extinguishing agents can provide one-off self-protection in case of emergency overheating, it is desirable to directly regulate battery operation according to the temperature. Herein, smart self-protecting aqueous lithium-ion batteries are developed using thermos-responsive separators prepared through in situ polymerization on the hydrophilic separator. The thermos-responsive separator blocks the lithium ion transport channels at high temperature and reopens when the battery cools down; more importantly, this transition is reversible. The influence of lithium salts on the thermos-responsive behaviors of the hydrogels is investigated. Then suitable lithium salt (LiNO(3) ) and concentration (1 m) are selected in the electrolyte to achieve self-protection without sacrificing battery performance. The shut-off temperature can be tuned from 30 to 80 °C by adjusting the hydrophilic and hydrophobic moiety ratio in the hydrogel for targeted applications. This self-protecting LiMn(2) O(4) /carbon coated LiTi(2) (PO(4) )(3) (LMO/C-LTP) battery shows promise for smart energy storage devices with high safety and extended lifespan in case of high operating temperatures.<p /> <p>Language: en</p>",
language="en",
issn="1613-6810",
doi="10.1002/smll.202203035",
url="http://dx.doi.org/10.1002/smll.202203035"
}