A thermal and electrochemical properties research on gel polymer electrolyte membrane of lithium ion battery |
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| Institution: | 1. Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province, College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040, People''s Republic of China;2. Department of Chemistry, The University of Texas Rio Grande Valley, Edinburg, TX 78539-2999, USA;1. Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607, United States;2. Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, IL 60439, United States;3. Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL 60439, United States;1. Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China;2. School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China |
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| Abstract: | N-methyl-N-propyl-piperidin-bis(trifluoromethylsulfonyl)imide/bis(trifluoromethylsulfonyl) imide lithium base/polymethyl methacrylate(PP13TFSI/LiTFSI/PMMA) gel polymer electrolyte (GPE) membrane was prepared by in situ polymerization. The physical and chemical properties were comprehensively discussed. The decomposition characteristics were emphasized by thermogravimetric (TG-DTG) method in the nitrogen atmosphere at the different heating rates of 5, 10, 15 and 20 °C min−1, respectively. The activation energy was calculated with the iso-conversional methods of Ozawa and Kissinger, Friedman, respectively, and the Coats-Redfern methods were adopted to employ the detailed mechanism of the electrolyte membrane. The equation f(α)=3/2(1−α)1/3−1] was quite an appropriate kinetic mechanisms to describe the thermal decomposition process with an activation energy (Eα) of 184 kJ/mol and a pre-exponential factor (A) of 1.894×1011 were obtained. |
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| Keywords: | Electrolyte membrane Thermal properties Electrochemical properties |
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