期刊
CHEMELECTROCHEM
卷 4, 期 9, 页码 2293-2299出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201700322
关键词
in situ fabrication; lithium battery; all solid state; poly(ethylene oxide); composite polymer electrolyte
资金
- National Natural Science Foundation of China [21573036, 51602048]
- Education Department of Jilin Province [111099108]
- Science Technology Program of Jilin Province [20150520027JH]
- Jilin Provincial Research Center of Advanced Energy Materials (Northeast Normal University)
In this work, we propose an in situ hydrolytic method to synthesize SiO2 nanoparticles, which are incorporated in poly (ethylene oxide)-based polymer in the presence of lithium salt with a large anion (lithium bis(oxalate)borate). When evaluated as the solid electrolyte for electrochemical performance in lithium batteries, the as-prepared composite polymer electrolyte (CPE) exhibits an exciting ion conductivity of 1.9 mS/cm at 80 degrees C. Moreover, the CPE shows a decent Li+ transference number up to 0.69 and wide electrochemical window of 5.05 V at 60 degrees C. Furthermore, the Li/LiFePO4 cell assembled by the CPE exhibits an impressive capacity of 156.3 mAh/g at 60 degrees C under 0.05 C (1 C=160 mA/g). Considering the aspects mentioned above, the prepared CPE has the potential to be applied in practical high-temperature batteries with a long-term service life. More importantly, the synthetic strategy is favorable for enhancing both physical and electrochemical performance for solid electrolyte and may provide a new strategy for study and fabrication of lithium batteries.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据