Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 504, Issue -, Pages 97-103Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2015.12.059
Keywords
Ceramic-grafted separator; Electron beam radiation; Safety; Lithium-ion batteries
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Funding
- Program of Hubei Province, Natural Science Foundation of Hubei Province, China [2015CFC774]
- Program for New Century Excellent Talents in University [NCET-12-0419]
- Hubei National Funds for Distinguished Young Scholars [2014CFA038]
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The separator is one of the most critically important components of lithium-ion battery to ensure battery safety. Herein, we introduce a novel TiO2 ceramic-grafted polyethylene (TiO2-grafted PE) separator prepared by electron beam radiation. The TiO2-grafted PE separator displays similar thickness and pore structure to the bare PE separator. Moreover, The TiO2-grafted PE separator exhibits not only stronger dimensional thermal stability (a shrinkage ratio of only 36% even at 150 degrees C), but also better electrochemical performance than the bare PE separator. Therefore, the TiO2-grafted PE separator is greatly beneficial for constructing safer lithium-ion batteries. (C) 2016 Elsevier B.V. All rights reserved.
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