High-Power Lithium Metal Batteries Enabled by High-Concentration Acetonitrile-Based Electrolytes with Vinylene Carbonate Additive

doi:10.1002/adfm.202001285

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	High-Power Lithium Metal Batteries Enabled by High-Concentration Acetonitrile-Based Electrolytes with Vinylene Carbonate Additive
	Peng Zhe ; Cao Xia ; Gao Peiyuan ; Jia Haiping ; Ren Xiaodi ; Roy, Swadipta ; Li Zhendong ; Zhu, Yun ; Xie, Weiping ; Liu, Dianying
刊名	ADVANCED FUNCTIONAL MATERIALS
	2020
卷号	30 期号:24
关键词	ELECTROCHEMICAL PROPERTIES COULOMBIC EFFICIENCY CURRENT-DENSITY LI-ION MORPHOLOGY STABILITY TRANSPORT CAPACITY ETHYLENE ANODES
DOI	10.1002/adfm.202001285
英文摘要	To enable next-generation high-power, high-energy-density lithium (Li) metal batteries (LMBs), an electrolyte possessing both high Li Coulombic efficiency (CE) at a high rate and good anodic stability on cathodes is critical. Acetonitrile (AN) is a well-known organic solvent for high anodic stability and high ionic conductivity, yet its application in LMBs is limited due to its poor compatibility with Li metal anodes even at high salt concentration conditions. Here, a highly concentrated AN-based electrolyte is developed with a vinylene carbonate (VC) additive to suppress Li+ depletion at high current densities. Addition of VC to the AN-based electrolyte leads to the formation of a polycarbonate-based solid electrolyte interphase, which minimizes Li corrosion and leads to a very high Li CE of up to 99.2% at a current density of 0.2 mA cm(-2). Using such an electrolyte, fast charging of Li\|\|NMC333 cells is realized at a high current density of 3.6 mA cm(-2), and stable cycling of Li\|\|NMC622 cells with a high cathode loading of 4 mAh cm(-2) is also demonstrated.
学科主题	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/19765]
专题	2020专题
作者单位	1.Xu, W 2.Zhang, JG (corresponding author), Pacific Northwest Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA. 3.Wang, DY (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China.
推荐引用方式 GB/T 7714	Peng Zhe,Cao Xia,Gao Peiyuan,et al. High-Power Lithium Metal Batteries Enabled by High-Concentration Acetonitrile-Based Electrolytes with Vinylene Carbonate Additive[J]. ADVANCED FUNCTIONAL MATERIALS,2020,30(24).
APA	Peng Zhe.,Cao Xia.,Gao Peiyuan.,Jia Haiping.,Ren Xiaodi.,...&Zhang, Ji-Guang.(2020).High-Power Lithium Metal Batteries Enabled by High-Concentration Acetonitrile-Based Electrolytes with Vinylene Carbonate Additive.ADVANCED FUNCTIONAL MATERIALS,30(24).
MLA	Peng Zhe,et al."High-Power Lithium Metal Batteries Enabled by High-Concentration Acetonitrile-Based Electrolytes with Vinylene Carbonate Additive".ADVANCED FUNCTIONAL MATERIALS 30.24(2020).