scholarly journals A comparative degradation study of commercial lithium-ion cells under low-temperature cycling

RSC Advances ◽  
2017 ◽  
Vol 7 (37) ◽  
pp. 23157-23163 ◽  
Author(s):  
Yakun Zhang ◽  
Hao Ge ◽  
Jun Huang ◽  
Zhe Li ◽  
Jianbo Zhang
Keyword(s):  
Low Temperature ◽  
Electric Vehicles ◽  
Low Temperatures ◽  
Lithium Ion ◽  
Temperature Cycling ◽  
Degradation Study ◽  
Lithium Ion Cells ◽  
Severe Deterioration

Severe deterioration of lithium-ion cells at low temperatures constitutes one of the bottlenecks for the wide adoption of electric vehicles.

scholarly journals Optimisation of Direct Battery Thermal Management for EVs Operating in Low-Temperature Climates

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5980 ◽  
Author(s):  
James Jeffs ◽  
Truong Quang Dinh ◽  
Widanalage Dhammika Widanage ◽  
Andrew McGordon ◽  
Alessandro Picarelli
Keyword(s):  
Low Temperature ◽  
Ambient Temperature ◽  
Thermal Management ◽  
Electric Vehicles ◽  
Low Temperatures ◽  
Air Conditioning ◽  
Lithium Ion ◽  
Battery Thermal Management ◽  
Temperature Performance ◽  
The Impact

Electric vehicles (EVs) experience a range reduction at low temperatures caused by the impact of cabin heating and a reduction in lithium ion performance. Heat pump equipped vehicles have been shown to reduce heating ventilation and air conditioning (HVAC) consumption and improve low ambient temperature range. Heating the electric battery, to improve its low temperature performance, leads to a reduction in heat availability for the cabin. In this paper, dynamic programming is used to find the optimal battery heating trajectory which can optimise the vehicle’s control for either cabin comfort or battery performance and, therefore, range. Using the strategy proposed in this research, a 6.2% increase in range compared to no battery heating and 5.5% increase in thermal comfort compared to full battery heating was achieved at an ambient temperature at −7 °C.

Preventing lithium plating under extremes: an untold tale of two electrodes

2021 ◽  
Author(s):  
Amy Bohinsky ◽  
Sobana P. Rangarajan ◽  
Yevgen Barsukov ◽  
Partha Mukherjee
Keyword(s):  
Electric Vehicles ◽  
Lithium Ion ◽  
Commercial Viability ◽  
Lithium Ion Cells ◽  
Fast Charging ◽  
Range Anxiety

Fast charging of lithium-ion cells is key to alleviate range anxiety and improve the commercial viability of electric vehicles, which is, however, limited by the propensity of lithium plating. The...

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.

Investigating the Low-Temperature Impedance Increase of Lithium-Ion Cells

2008 ◽  
Vol 155 (1) ◽  
pp. A41 ◽  
Author(s):  
D. P. Abraham ◽  
J. R. Heaton ◽  
S.-H. Kang ◽  
D. W. Dees ◽  
A. N. Jansen
Keyword(s):  
Low Temperature ◽  
Lithium Ion ◽  
Lithium Ion Cells

Alternative Anodes for Low Temperature Lithium-Ion Batteries

2021 ◽  
Author(s):  
Gearoid A Collins ◽  
Hugh Geaney ◽  
Kevin Michael Ryan
Keyword(s):  
Low Temperature ◽  
Lithium Ion Batteries ◽  
Electric Vehicles ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Critical Components

Li-ion batteries (LIBs) have become critical components in the manufacture of electric vehicles (EV) as they offer the best all-round performance compared to competing battery chemistries. However, LIB performance at...

scholarly journals Fast charging of lithium-ion batteries at all temperatures

2018 ◽  
Vol 115 (28) ◽  
pp. 7266-7271 ◽  
Author(s):  
Xiao-Guang Yang ◽  
Guangsheng Zhang ◽  
Shanhai Ge ◽  
Chao-Yang Wang
Keyword(s):  
Low Temperature ◽  
Electric Vehicles ◽  
Cell Structure ◽  
Lithium Ion ◽  
State Of Charge ◽  
Trade Off ◽  
Battery Materials ◽  
Capacity Loss ◽  
Fast Charging ◽  
Conventional Cell

Fast charging is a key enabler of mainstream adoption of electric vehicles (EVs). None of today’s EVs can withstand fast charging in cold or even cool temperatures due to the risk of lithium plating. Efforts to enable fast charging are hampered by the trade-off nature of a lithium-ion battery: Improving low-temperature fast charging capability usually comes with sacrificing cell durability. Here, we present a controllable cell structure to break this trade-off and enable lithium plating-free (LPF) fast charging. Further, the LPF cell gives rise to a unified charging practice independent of ambient temperature, offering a platform for the development of battery materials without temperature restrictions. We demonstrate a 9.5 Ah 170 Wh/kg LPF cell that can be charged to 80% state of charge in 15 min even at −50 °C (beyond cell operation limit). Further, the LPF cell sustains 4,500 cycles of 3.5-C charging in 0 °C with <20% capacity loss, which is a 90× boost of life compared with a baseline conventional cell, and equivalent to >12 y and >280,000 miles of EV lifetime under this extreme usage condition, i.e., 3.5-C or 15-min fast charging at freezing temperatures.

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