An investigation on electrical and thermal characteristics of cylindrical lithium-ion batteries at low temperatures

Energy ◽  
2021 ◽  
Vol 225 ◽  
pp. 120223
Author(s):  
Hongfei Wu ◽  
Xingjuan Zhang ◽  
Renfeng Cao ◽  
Chunxin Yang
2014 ◽  
Vol 986-987 ◽  
pp. 80-83
Author(s):  
Xiao Xue Zhang ◽  
Zhen Feng Wang ◽  
Cui Hua Li ◽  
Jian Hong Liu ◽  
Qian Ling Zhang

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.


Energy ◽  
2022 ◽  
Vol 238 ◽  
pp. 121809
Author(s):  
Shanshan Guo ◽  
Ruixin Yang ◽  
Weixiang Shen ◽  
Yongsheng Liu ◽  
Shenggang Guo

2015 ◽  
Vol 274 ◽  
pp. 432-439 ◽  
Author(s):  
Meike Fleischhammer ◽  
Thomas Waldmann ◽  
Gunther Bisle ◽  
Björn-Ingo Hogg ◽  
Margret Wohlfahrt-Mehrens

2018 ◽  
Vol 33 (9) ◽  
pp. 7759-7769 ◽  
Author(s):  
Yunlong Shang ◽  
Bing Xia ◽  
Naxin Cui ◽  
Chenghui Zhang ◽  
Chunting Chris Mi

2021 ◽  
Vol 12 (4) ◽  
pp. 250
Author(s):  
Guanchen Liu ◽  
Lijun Zhang

Aiming at the complex experimental conditions of multi-physical field coupling in the analysis of thermal characteristics of lithium-ion batteries, a three-dimensional electrochemical-thermal flow coupling model for lithium-ion batteries was established using COMSOL Multiphysics software. Through the analysis of simulation results, the thermal characteristics of lithium-ion batteries for electric vehicles were explored from the aspects of heat generation and dissipation. It was found that increasing the charge–discharge rate and the electrode thickness will increase the temperature rise rate of lithium-ion batteries, and the temperature rise rate of lithium-ion batteries is the highest during their first time charging and discharging. Increasing the airflow velocity and reducing the size of the inlet flow area can improve the cooling effect on the cell. Under a single inlet, the cooling effect of the airflow field entering from the negative electrode is better than that from the positive electrode.


RSC Advances ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 7116-7121 ◽  
Author(s):  
Evan M. Erickson ◽  
Florian Schipper ◽  
Ruiyuan Tian ◽  
Ji-Yong Shin ◽  
Christoph Erk ◽  
...  

Activation of Li-rich cathode materials at low-temperatures (0 or 15 °C) results in ∼10% higher discharge capacities than activation at 30 °C.


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