Boosting the comprehensive performance for a Co-free high-voltage system with a multi-component nitrile

doi:10.1039/d1nj04080d

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Boosting the comprehensive performance for a Co-free high-voltage system with a multi-component nitrile
	Zhang, Ping 1; Li, Shi-You 2; Wei, Xiao-Hong 1; Li, Chun-Lei 2; Meng, Shu-Juan 1; Cui, Xiao-Ling 2; Su, Qiong 2; Zhao, Dong-Ni 2
刊名	NEW JOURNAL OF CHEMISTRY
	2021-11-15
卷号	45 期号:44 页码:20681-20689
ISSN号	1144-0546
DOI	10.1039/d1nj04080d
英文摘要	Lithium-ion batteries with high-energy density are a hot spot in current research, and the 5 V class of high-voltage LiNi0.5Mn1.5O4 (LNMO) cathode materials attracts widespread attention because of its high specific capacity. However, the traditional electrolyte causes unnecessary reactions with the LNMO interface at high voltage, so choosing a suitable electrolyte is key to the development of the above-mentioned battery system. Here, we introduce 1,3,6-hexanetrinitrile (HTN) as the high-voltage additive to improve the oxidation stability of LNMO/Li cells. Compared with the conventional nitrile-based additive adiponitrile (ADN), the HTN additive can provide more nitrile functional groups to reduce the problem of decreased electrolyte viscosity caused by adding too much ADN. Besides, in order to improve the suboptimal performance of HTN in the mesocarbon microbead (MCMB) anode, methyl benzenesulfonate (MBS) MBS with characteristics of a protecting lithium metal anode at low potential is compounded in the electrolyte to improve the performance of LNMO/MCMB batteries. The synergy and complementary advantages of HTN and MBS improve the overall performance of the LNMO/MCMB battery system. Modification of commercial electrolyte systems with compound additives as required becomes a major direction for the future design of electrolyte formulation.
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000711557600001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150070]
专题	石油化工学院
作者单位	1.Northwest Minzu Univ, Key Lab Util Environm Friendly Composite Mat & Bi, Coll Chem Engn, Key Lab Environm Friendly Composite Mat,State Eth, Northwest New Village 1, Lanzhou, Peoples R China; 2.Lanzhou Univ Technol, Coll Petrochem Technol, Langongping Rd 287, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ping,Li, Shi-You,Wei, Xiao-Hong,et al. Boosting the comprehensive performance for a Co-free high-voltage system with a multi-component nitrile[J]. NEW JOURNAL OF CHEMISTRY,2021,45(44):20681-20689.
APA	Zhang, Ping.,Li, Shi-You.,Wei, Xiao-Hong.,Li, Chun-Lei.,Meng, Shu-Juan.,...&Zhao, Dong-Ni.(2021).Boosting the comprehensive performance for a Co-free high-voltage system with a multi-component nitrile.NEW JOURNAL OF CHEMISTRY,45(44),20681-20689.
MLA	Zhang, Ping,et al."Boosting the comprehensive performance for a Co-free high-voltage system with a multi-component nitrile".NEW JOURNAL OF CHEMISTRY 45.44(2021):20681-20689.