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 1,2; Tang, Fengjuan 2; Li, Chunlei 2; Zhang, Yu 2; Wang, Peng 2; Feng, Huixia 1,2; Zhao, Jiachen 2; Li, Faqiang 3; Li, Shiyou 1,2
刊名	ELECTROCHIMICA ACTA
	2017-11
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)
ISSN号	0013-4686
DOI	10.1016/j.electacta.2017.09.052
英文摘要	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.
WOS研究方向	Electrochemistry
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000413011100031
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33039]
专题	石油化工学院省部共建有色金属先进加工与再利用国家重点实验室教务处（创新创业学院）
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
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.