期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 822, 期 -, 页码 105-111出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2018.05.021
关键词
Solid polymer electrolytes; PEO; Mesoporous organic polymer; Battery
资金
- National Natural Science Foundation of China (NSFC) [51202117]
- Natural Science Foundation of Beijing [2162037]
- Beijing Nova program [Z171100001117077]
- Beijing outstanding talent program [2015000020124G121]
- Fundamental Research Funds for the Central Universities [2014QJ02]
- State Key Laboratory of Coal Resources and Safe Mining [SKLCRSM16KFB04]
- Yue Qi Young Scholar Project of China University of Mining & Technology (Beijing) [2017QN17]
Practical, high-yield mesoporous organic polymer (MOP) spheres were successfully synthesized by a novel self-template method, which can be used as fillers to prepare poly (ethylene oxide) (PEO)-based polymer electrolytes membranes. The result shows that both the electrical conductivity and lithium-ion conductivity of PEO-based electrolytes can be improved effectively by adding the MOP filler. The electrolyte membranes are mechanically robust, thermally stable to over 270 degrees C, and can effectively block dendrites penetrating from metallic-lithium anode to cathode. The Li+ transfer conductivity of composite electrolyte membrane increases to 4.4 x 10(-4 )S cm(-l) at 63 degrees C. All-solid-state LiFePO4/MOP-PEO-LiTFSI/Li cell shows excellent cycling (144 mAh g(-1) after 300 cycles) and rate (167 mAh g(-1) at 0.2 C, 170 mAh g(-1) at 0.5 C, 160 mAh g(-1) at 1 C and 145 mAh g(-1) at 2 C) performance.
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