Safe Electrolytes for Lithium-Ion Batteries Based on Ternary Mixtures of Triethylene Glycol Dimethylether, Fluoroethylene Carbonate and Non-Flammable Methyl-Nonafluorobutyl Ether

2016 ◽  
Vol 163 (9) ◽  
pp. A1951-A1958 ◽  
Author(s):  
Yi Liu ◽  
Shaohua Fang ◽  
Dong Luo ◽  
Li Yang ◽  
Shin-ichi Hirano
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Triethylene Glycol ◽  
Ternary Mixtures ◽  
Fluoroethylene Carbonate

FEC-LiTFSI-Pyr1ATFSI Ionic Liquid Electrolyte to Improve Low Temperature Performance of Lithium-Ion Batteries

2014 ◽  
Vol 986-987 ◽  
pp. 80-83
Author(s):  
Xiao Xue Zhang ◽  
Zhen Feng Wang ◽  
Cui Hua Li ◽  
Jian Hong Liu ◽  
Qian Ling Zhang
Keyword(s):  
Low Temperature ◽  
Lithium Ion Batteries ◽  
Low Temperatures ◽  
Freezing Point ◽  
Lithium Ion ◽  
Liquid Electrolyte ◽  
Capacity Retention ◽  
Composite Electrolyte ◽  
Ionic Liquid Electrolyte ◽  
Fluoroethylene Carbonate

N-methyl-N-allylpyrrolidinium bis (trifluoromethanesulfonyl) imide (PYR1ATFSI) with substantial supercooling behavior is synthesized to develop low temperature electrolyte for lithium-ion batteries. Additive fluoroethylene carbonate (FEC) in LiTFSI/PYR1ATFSI/EC/PC/EMC is found that it can reduce the freezing point. LiFePO4/Li coin cells with the FEC-PYR1ATFSI electrolyte exhibit good capacity retention, reversible cycling behavior at low temperatures. The good performance can be attributed to the decrease in the freezing point and the polarization of the composite electrolyte.

Effects of FEC Additive on the Low Temperature Performance of LiODFB-Based Lithium-Ion Batteries

2013 ◽  
Vol 724-725 ◽  
pp. 1025-1028
Author(s):  
Rong Xiang ◽  
Fa Qiang Li ◽  
Guo Feng Jia ◽  
Zheng Jun Peng ◽  
Qin Zhuge
Keyword(s):  
Ionic Conductivity ◽  
Low Temperature ◽  
Lithium Ion Batteries ◽  
Discharge Capacity ◽  
Lithium Ion ◽  
Electrochemical Measurements ◽  
Temperature Performance ◽  
Fluoroethylene Carbonate ◽  
Low Temperature Performance

The low temperature performance of LiFePO4/Li cells based on lithium oxalyldifluoroborate (LiODFB) with fluoroethylene carbonate (FEC) as addictive have been investigated. The result of ionic conductivity test shows that the use of 5% FEC can improve the conductivity of both LiPF6and LiODFB electrolytes at low temperature. The electrochemical measurements of the cells show that the use of FEC can effectively improve the discharge capacity and has better kinetics characteristics and low temperature performance. The LiODFB cell with FEC also exhibits excellent cycling retention of 88.8% after 50 cycles at-20°C.

Decomposition of the fluoroethylene carbonate additive and the glue effect of lithium fluoride products for the solid electrolyte interphase: an ab initio study

2016 ◽  
Vol 18 (12) ◽  
pp. 8643-8653 ◽  
Author(s):  
Yukihiro Okuno ◽  
Keisuke Ushirogata ◽  
Keitaro Sodeyama ◽  
Yoshitaka Tateyama
Keyword(s):  
Solid Electrolyte ◽  
Lithium Ion Batteries ◽  
Electrolyte Solution ◽  
Lithium Fluoride ◽  
Solid Electrolyte Interphase ◽  
Lithium Ion ◽  
Ab Initio Study ◽  
Fluoroethylene Carbonate ◽  
The Stability ◽  
Fluoroethylene Carbonate Additive

Additives in the electrolyte solution of lithium-ion batteries (LIBs) have a large impact on the performance of the solid electrolyte interphase (SEI) that forms on the anode and is a key to the stability and durability of LIBs.

The Critical Role of Fluoroethylene Carbonate in the Gassing of Silicon Anodes for Lithium-Ion Batteries

2017 ◽  
Vol 2 (10) ◽  
pp. 2228-2233 ◽  
Author(s):  
Alexander Schiele ◽  
Ben Breitung ◽  
Toru Hatsukade ◽  
Balázs B. Berkes ◽  
Pascal Hartmann ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Critical Role ◽  
Lithium Ion ◽  
Silicon Anodes ◽  
Fluoroethylene Carbonate
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