A single-ion gel polymer electrolyte system for improving cycle performance of LiMn2O4 battery at elevated temperatures | |
Qin, Bingsheng1,2; Liu, Zhihong1; Ding, Guoliang1; Duan, Yulong1; Zhang, Chuanjian1; Cui, Guanglei1 | |
刊名 | ELECTROCHIMICA ACTA |
2014-09-20 | |
卷号 | 141期号:1页码:167-172 |
关键词 | gel polymer electrolyte single-ion electrolyte LiMn2O4 |
英文摘要 | The LiMn2O4 based lithium batteries using commercially available electrolytes suffer from poor cycling performance at elevated temperatures (above 55 degrees C). This is mainly caused by the Mn dissolution generated from HF thermally decomposed from the LiPF6 salt at elevated temperatures. In this paper, a single-ion gel polymer electrolyte (polymeric lithium tartaric acid borate @ poly(vinylidene fluoride-co-hexafluoropropylene) was explored for improving the cycling performance of the LiMn2O4 based lithium battery at elevated temperatures owing to superior thermal stability and comparable ionic conductivity. It was manifested that the Li/LiMn2O4 cells using this single-ion gel polymer electrolyte showed stable charge/discharge voltage profiles, preferable rate capability and excellent cycling performance both at room temperature and elevated temperature of 55 degrees C. The dissolution of metallic Mn in this electrolyte is significantly suppressed than that of LiPF6 electrolyte. These superior performances could endow this single-ion gel polymer electrolyte a promising alternative to the conventional liquid electrolyte system in the LiMn2O4 battery at elevated temperatures. (C) 2014 Elsevier Ltd. All rights reserved. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Electrochemistry |
研究领域[WOS] | Electrochemistry |
关键词[WOS] | IMPROVED ELECTROCHEMICAL PERFORMANCE ; LITHIUM BATTERIES ; CATHODE MATERIALS ; SPINEL ; DEPOSITION ; CELLS ; SURFACE ; ADDITIVES ; GRAPHITE ; IMPACT |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000343022900022 |
内容类型 | 期刊论文 |
源URL | [http://ir.qibebt.ac.cn/handle/337004/6161] |
专题 | 青岛生物能源与过程研究所_仿生能源与储能系统团队 |
作者单位 | 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Key Lab Solar Energy & Energy Storage, Qingdao 266101, Peoples R China 2.Qufu Normal Univ, Dept Chem, Key Lab Life Organ Anal Shandong, Qufu 273165, Peoples R China |
推荐引用方式 GB/T 7714 | Qin, Bingsheng,Liu, Zhihong,Ding, Guoliang,et al. A single-ion gel polymer electrolyte system for improving cycle performance of LiMn2O4 battery at elevated temperatures[J]. ELECTROCHIMICA ACTA,2014,141(1):167-172. |
APA | Qin, Bingsheng,Liu, Zhihong,Ding, Guoliang,Duan, Yulong,Zhang, Chuanjian,&Cui, Guanglei.(2014).A single-ion gel polymer electrolyte system for improving cycle performance of LiMn2O4 battery at elevated temperatures.ELECTROCHIMICA ACTA,141(1),167-172. |
MLA | Qin, Bingsheng,et al."A single-ion gel polymer electrolyte system for improving cycle performance of LiMn2O4 battery at elevated temperatures".ELECTROCHIMICA ACTA 141.1(2014):167-172. |
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