Citation: Weimin Zhao, Fucheng Ren, Qizhang Yan, Haodong Liu, Yong Yang. A facile synthesis of non-aqueous LiPO₂F₂ solution as the electrolyte additive for high performance lithium ion batteries[J]. Chinese Chemical Letters, ;2020, 31(12): 3209-3212. doi: 10.1016/j.cclet.2020.05.006 shu

A facile synthesis of non-aqueous LiPO₂F₂ solution as the electrolyte additive for high performance lithium ion batteries

Weimin Zhao ^{a, b} ,
Fucheng Ren ^b ,
Qizhang Yan ^c ,
Haodong Liu ^{c, *,} ,
Yong Yang ^{b, *,}

a.
College of Chemical Engineering and Safety, Binzhou University, Binzhou 256503, China
b.
State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
c.
Department of Nanoengineering, University of California San Diego, La Jolla 92093, United States

haodong.liu.xmu@gmail.com

yyang@xmu.edu.cn

Received Date: 5 April 2020
Revised Date: 30 April 2020
Accepted Date: 7 May 2020
Available Online: 14 May 2020

Figures(3)

Constructing a reliable and favorable electrode-electrolyte interface is crucial to utilize the exceptional energy storage capability in commercial lithium-ion batteries. Here, we report a facile synthesis approach for the lithium difluorophosphate (LiPO₂F₂) solution as an effective film-forming additive via direct adding the Li₂CO₃ into LiPF₆ solution at 45 ℃. Benefiting from the significantly reduced interface resistance (R_SEI) and charge transfer impedance (R_ct) of both the cathode and anode by adding the prepared LiPO₂F₂ solution into a baseline electrolyte, the cycling performance of the graphite‖LiNi_0.5Mn_0.3Co_0.2O₂ pouch cell is remarkably improved under all-climate condition.
- Lithium difluorophosphate (LiPO₂F₂),
- solution,
- Electrolyte additives,
- Electrode-electrolyte interface,
- Synthesis,
- Li-ion batteries
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通讯作者: 陈斌, bchen63@163.com

A facile synthesis of non-aqueous LiPO₂F₂ solution as the electrolyte additive for high performance lithium ion batteries