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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
2014-09-20
Source PublicationELECTROCHIMICA ACTA
Volume141Issue:1Pages:167-172
Abstract

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.

SubtypeArticle
KeywordGel Polymer Electrolyte Single-ion Electrolyte Limn2o4
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.electacta.2014.07.004
WOS KeywordIMPROVED ELECTROCHEMICAL PERFORMANCE ; LITHIUM BATTERIES ; CATHODE MATERIALS ; SPINEL ; DEPOSITION ; CELLS ; SURFACE ; ADDITIVES ; GRAPHITE ; IMPACT
Indexed BySCI
Language英语
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000343022900022
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/6161
Collection仿生与固态能源系统研究组
Affiliation1.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
Recommended Citation
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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