Concentrated electrolytes based on dual salts of LiFSI and LiODFB for lithium-metal battery

Xiaoyan Liu; Chao Shen; Na Gao; Qian Hou; Fei Song; Xiuli Tian; Ye He; Jihong Huang; Zhao Fang; Keyu Xie

doi:10.1016/j.electacta.2018.09.085

Concentrated electrolytes based on dual salts of LiFSI and LiODFB for lithium-metal battery

Xiaoyan Liu, Chao Shen, Na Gao, Qian Hou, Fei Song, Xiuli Tian, Ye He, Jihong Huang, Zhao Fang, Keyu Xie

School of Materials Sience and Engineering

Research output: Contribution to journal › Review article › peer-review

52 Scopus citations

Abstract

Li-metal battery (LiMB) has received considerable attention as an alternative energy storage device to Li-ion battery in recent years. However, uncontrolled Li dendrite growth prevents the practical applications of LiMB. Herein, we report the use of concentrated electrolytes based on dual salts of lithium bis(fluorosulfonyl) imide (LiFSI) and lithium difluoro(oxalato) borate (LiODFB) to suppress Li dendrite growth. The compatibility of electrolyte and LiFePO₄ cathode was further verified by the long capacity retention and high rate performance of Li/LiFePO₄ battery. The superior electrochemical performance was attributed to the concentrated electrolyte, which could simultaneously suppress Li dendrite growth at the anode side and Aluminum (Al) current collector corrosion at the cathode side. This work provides new insights to develop high-performance LiMBs by carefully tailoring the multivariate composition of concentrated electrolyte.

Original language	English
Pages (from-to)	422-427
Number of pages	6
Journal	Electrochimica Acta
Volume	289
DOIs	https://doi.org/10.1016/j.electacta.2018.09.085
State	Published - 1 Nov 2018

Keywords

Al corrosion
Concentrated electrolytes
Dendrite growth
Dual salts
Li-metal battery

Access to Document

10.1016/j.electacta.2018.09.085

Cite this

@article{609fb52e35e84b2a80c76b382eec0242,

title = "Concentrated electrolytes based on dual salts of LiFSI and LiODFB for lithium-metal battery",

abstract = "Li-metal battery (LiMB) has received considerable attention as an alternative energy storage device to Li-ion battery in recent years. However, uncontrolled Li dendrite growth prevents the practical applications of LiMB. Herein, we report the use of concentrated electrolytes based on dual salts of lithium bis(fluorosulfonyl) imide (LiFSI) and lithium difluoro(oxalato) borate (LiODFB) to suppress Li dendrite growth. The compatibility of electrolyte and LiFePO4 cathode was further verified by the long capacity retention and high rate performance of Li/LiFePO4 battery. The superior electrochemical performance was attributed to the concentrated electrolyte, which could simultaneously suppress Li dendrite growth at the anode side and Aluminum (Al) current collector corrosion at the cathode side. This work provides new insights to develop high-performance LiMBs by carefully tailoring the multivariate composition of concentrated electrolyte.",

keywords = "Al corrosion, Concentrated electrolytes, Dendrite growth, Dual salts, Li-metal battery",

author = "Xiaoyan Liu and Chao Shen and Na Gao and Qian Hou and Fei Song and Xiuli Tian and Ye He and Jihong Huang and Zhao Fang and Keyu Xie",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2018",

month = nov,

day = "1",

doi = "10.1016/j.electacta.2018.09.085",

language = "英语",

volume = "289",

pages = "422--427",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Concentrated electrolytes based on dual salts of LiFSI and LiODFB for lithium-metal battery

AU - Liu, Xiaoyan

AU - Shen, Chao

AU - Gao, Na

AU - Hou, Qian

AU - Song, Fei

AU - Tian, Xiuli

AU - He, Ye

AU - Huang, Jihong

AU - Fang, Zhao

AU - Xie, Keyu

PY - 2018/11/1

Y1 - 2018/11/1

N2 - Li-metal battery (LiMB) has received considerable attention as an alternative energy storage device to Li-ion battery in recent years. However, uncontrolled Li dendrite growth prevents the practical applications of LiMB. Herein, we report the use of concentrated electrolytes based on dual salts of lithium bis(fluorosulfonyl) imide (LiFSI) and lithium difluoro(oxalato) borate (LiODFB) to suppress Li dendrite growth. The compatibility of electrolyte and LiFePO4 cathode was further verified by the long capacity retention and high rate performance of Li/LiFePO4 battery. The superior electrochemical performance was attributed to the concentrated electrolyte, which could simultaneously suppress Li dendrite growth at the anode side and Aluminum (Al) current collector corrosion at the cathode side. This work provides new insights to develop high-performance LiMBs by carefully tailoring the multivariate composition of concentrated electrolyte.

AB - Li-metal battery (LiMB) has received considerable attention as an alternative energy storage device to Li-ion battery in recent years. However, uncontrolled Li dendrite growth prevents the practical applications of LiMB. Herein, we report the use of concentrated electrolytes based on dual salts of lithium bis(fluorosulfonyl) imide (LiFSI) and lithium difluoro(oxalato) borate (LiODFB) to suppress Li dendrite growth. The compatibility of electrolyte and LiFePO4 cathode was further verified by the long capacity retention and high rate performance of Li/LiFePO4 battery. The superior electrochemical performance was attributed to the concentrated electrolyte, which could simultaneously suppress Li dendrite growth at the anode side and Aluminum (Al) current collector corrosion at the cathode side. This work provides new insights to develop high-performance LiMBs by carefully tailoring the multivariate composition of concentrated electrolyte.

KW - Al corrosion

KW - Concentrated electrolytes

KW - Dendrite growth

KW - Dual salts

KW - Li-metal battery

UR - http://www.scopus.com/inward/record.url?scp=85054640730&partnerID=8YFLogxK

U2 - 10.1016/j.electacta.2018.09.085

DO - 10.1016/j.electacta.2018.09.085

M3 - 文献综述

AN - SCOPUS:85054640730

SN - 0013-4686

VL - 289

SP - 422

EP - 427

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Concentrated electrolytes based on dual salts of LiFSI and LiODFB for lithium-metal battery

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this