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Synthesis and characterization of mixing soft-segmented waterborne polyurethane polymer electrolyte with room temperature ionic liquid |
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| Authors: | Yue Jiao Lia Feng Wu Ren Jie Chen a School of Chemical Engineering Environment Beijing Institute of Technology Beijing China b National Development Center for High Technology Green Material China |
| Institution: | 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 |
| Abstract: | 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. |
| Keywords: | Composite polymer electrolytes Ionic liquid Waterborne polyurethane Ionic conductivity 1-Butyl-3-methylimidazoliurn bis[(trifluoromethyl)sulfonyl]imide |
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