期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 29, 页码 24591-24599出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b06271
关键词
cellulose aerogel membrane; ionic liquid; nanoporous network; safer; lithium-ion battery
资金
- National Science Foundation of China [51425307, 51573196, 21374126, 51273206]
- Program of Taishan Industry Leading Talents (Shandong Province)
Cellulose aerogel membranes (CAMs) are proposed as a matrix for gel polymer electrolyte to the fabrication of lithium-ion batteries (LIBs)-with superior thermal stability. The CAMs are obtained from a celluloseioriic liquid solution via a dissolution regeneration supercritical drying route. The presence of high porosity, the nanoporous network structure, and numerous polar hydroxyl groups benefits the quick absorption of liquid electrolytes for gelation of the CAMs and improves the ionic conductivity of the gelled CAMs. LIBs assembled with the gelled CAMs display excellent electrochemical performance at room temperature, and more importantly, the intrinsic thermal resistance of cellulose allows the LIBs to run stably for at least 30 min at working temperatures as high as 120 degrees C. The CAMs, with their excellent thermal stability, are promising for the development of highly safe, cost-effective, and high-performance LIBs.
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