Citation: Yue Jiao Li, Feng Wu, Ren Jie Chen. Synthesis and characterization of mixing soft-segmented waterborne polyurethane polymer electrolyte with room temperature ionic liquid[J]. Chinese Chemical Letters, ;2009, 20(5): 519-522. doi: 10.1016/j.cclet.2009.01.025 shu

Synthesis and characterization of mixing soft-segmented waterborne polyurethane polymer electrolyte with room temperature ionic liquid

Yue Jiao Li ^a, ,
Feng Wu ^a,b ,
Ren Jie Chen ^a,b

a School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China;
b National Development Center for High Technology Green Material, Beijing 100081, China

Received Date: 23 September 2008

Fund Project: This work was financially supported by the National 863 Program (No.2007AA03Z226) and the National Key Program for Basic Research of China (No.2002CB211800 and 2009CB220100).

Composite polymer electrolytes based on mixing soft-segment waterborne polyurethane (WPU) and 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide (BMImTFSI) have been prepared and characterized. The addition of BMImTFSI results in an increase of the ionic conductivity. At high BMImTFSI concentration (BMImTFSI/WPU=3 in weight ratio), the ionic conductivity reaches 4.27×10^-3 S/cm at 30℃. These composite polymer electrolytes exhibit good thermal and electrochemical stability, which are high enough to be applied in lithium batteries.
- Composite polymer electrolytes,
- Ionic liquid,
- Waterborne polyurethane,
- Ionic conductivity,
- 1-Butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide
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