期刊
JOURNAL OF POWER SOURCES
卷 268, 期 -, 页码 882-886出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2014.06.068
关键词
Anatase titanium dioxide; Catalytic activity; Decomposition of solvents; Lithium ion battery
资金
- National Natural Science Foundation of China [51202121, 51232005]
- Shenzhen Projects for Basic Research [JC201104210152A, JCYJ20120619152808478]
- Guangdong Province Innovation R&D Team Plan for Energy and Environmental Materials [2009010025]
- National Key Basic Research Program of China [2014CB932400]
It has been indicated that anatase TiO2 is a promising anode material for lithium ion power battery from many previous researches. Whereas, in this work, we find that the anatase TiO2, when used as an anode for lithium ion battery, has high catalytic activity to initiate the decarboxylation reaction of electrolyte solution, resulting in the large generation of sole gaseous component, CO2. The ROLi species and the new phase of flake-like Li2TiF6 material are the main reaction products between anatase TiO2 and LiPF6 based electrolyte solution. This work provides important and urgent information that the surface chemistry of anatase TiO2 used as the anode material of lithium ion battery must be modified to suppress its catalytic activity for the decomposition of solvents. (C) 2014 Elsevier B.V. All rights reserved.
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