Improving Mn tolerance of lithium-ion batteries by using lithium bis (oxalato)borate-based electrolyte

doi:10.1016/j.electacta.2017.09.052

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	Improving Mn tolerance of lithium-ion batteries by using lithium bis (oxalato)borate-based electrolyte
	Cui, Xiaoling; Tang, Fengjuan; Li, Chunlei; Zhang, Yu; Wang, Peng; Feng, Huixia; Zhao, Jiachen; Li, Faqiang; Li, Shiyou
第一作者	Cui, Xiaoling
	2017-11-01
发表期刊	ELECTROCHIMICA ACTA
ISSN	0013-4686
卷号	253 页码:291-301
关键词	Lithium-ion Batteries Solid Electrolyte Interphase Mn Deposition Mn Tolerance Lithium Bis(Oxalato)Borate (Libob)
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.
DOI	10.1016/j.electacta.2017.09.052
语种	英语
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
推荐引用方式 GB/T 7714	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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