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Improving Mn tolerance of lithium-ion batteries by using lithium bis (oxalato)borate-based electrolyte
Cui, Xiaoling1,2; Tang, Fengjuan2; Li, Chunlei2; Zhang, Yu2; Wang, Peng2; Feng, Huixia1,2; Zhao, Jiachen2; Li, Faqiang3; Li, Shiyou1,2
2017-11-01
发表期刊ELECTROCHIMICA ACTA
卷号253页码:291-301
文章类型Article
摘要Metal dissolution from the positive electrode and redeposition on the negative electrode is one of the well-known failure processes in lithium-ion batteries (LIBs). And it is necessary to take effective measures to prevent this kind of issue from happening. This study examines the Mn tolerance of electrolytes based upon lithium bis(oxalato)borate (LiBOB) and LiPF6. Results show that compared with LiPF6-based cell, the one based on LiBOB is impacted less by dissolved Mn2+ ions. When Mn concentration in electrolyte is less than 50 ppm, the adverse effect of additive Mn2+ ions is tolerable, due to the excellent film-forming properties of LiBOB itself. However, when Mn concentration in LiBOB-based electrolyte is higher than 50 ppm, a small amount of Mn ions are detected on the graphite electrode. Subsequently, continuous decomposition products of the electrolyte induced by the deposited Mn compounds may hinder the intercalation of lithium into the graphite, thereby reducing the reversibility of the lithium intercalation. This study suggests that LiBOB-based electrolyte is an alternative electrolyte for relatively low-cost manganese-based electrodes by improving Mn tolerance to some extent. (C) 2017 Elsevier Ltd. All rights reserved.
关键词Lithium-ion Batteries Solid Electrolyte Interphase Mn Deposition Mn Tolerance Lithium Bis(Oxalato)Borate (Libob)
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]TEMPERATURE CYCLING STABILITY ; LIMN2O4 CATHODE ; MANGANESE DISSOLUTION ; NEGATIVE ELECTRODE ; GRAPHITE ANODES ; PERFORMANCE ; SPINEL ; DEGRADATION ; SURFACE ; MECHANISMS
收录类别SCI
语种英语
WOS研究方向Electrochemistry
WOS类目Electrochemistry
WOS记录号WOS:000413011100031
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6264
专题青海盐湖研究所知识仓储
盐湖资源与化学实验室
作者单位1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, 287 Langongping Rd, Lanzhou, Gansu, Peoples R China
2.Lanzhou Univ Technol, Coll Petrochem Technol, 36 Pengjiaping Rd, Lanzhou, Gansu, Peoples R China
3.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining, Qinghai, Peoples R China
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Cui, Xiaoling,Tang, Fengjuan,Li, Chunlei,et al. Improving Mn tolerance of lithium-ion batteries by using lithium bis (oxalato)borate-based electrolyte[J]. ELECTROCHIMICA ACTA,2017,253:291-301.
APA Cui, Xiaoling.,Tang, Fengjuan.,Li, Chunlei.,Zhang, Yu.,Wang, Peng.,...&Li, Shiyou.(2017).Improving Mn tolerance of lithium-ion batteries by using lithium bis (oxalato)borate-based electrolyte.ELECTROCHIMICA ACTA,253,291-301.
MLA Cui, Xiaoling,et al."Improving Mn tolerance of lithium-ion batteries by using lithium bis (oxalato)borate-based electrolyte".ELECTROCHIMICA ACTA 253(2017):291-301.
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