Methods for Measuring the Mechanical Safety Vent Pressure of Lithium ion Battery Cells

2006 ◽  
Author(s):  
Jan Swart ◽  
Ashish Arora ◽  
Marcus Megerle ◽  
Stig Nilsson
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Battery Cells

scholarly journals Characterization of the Compressive Load on a Lithium-Ion Battery for Electric Vehicle Application

Machines ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 71
Author(s):  
Seyed Saeed Madani ◽  
Erik Schaltz ◽  
Søren Knudsen Kær
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Electric Vehicles ◽  
Large Scale ◽  
Electrochemical Impedance ◽  
Applied Pressure ◽  
Lithium Ion ◽  
Battery Cells

Lithium-ion batteries are being implemented in different large-scale applications, including aerospace and electric vehicles. For these utilizations, it is essential to improve battery cells with a great life cycle because a battery substitute is costly. For their implementation in real applications, lithium-ion battery cells undergo extension during the course of discharging and charging. To avoid disconnection among battery pack ingredients and deformity during cycling, compacting force is exerted to battery packs in electric vehicles. This research used a mechanical design feature that can address these issues. This investigation exhibits a comprehensive description of the experimental setup that can be used for battery testing under pressure to consider lithium-ion batteries’ safety, which could be employed in electrified transportation. Besides, this investigation strives to demonstrate how exterior force affects a lithium-ion battery cell’s performance and behavior corresponding to static exterior force by monitoring the applied pressure at the dissimilar state of charge. Electrochemical impedance spectroscopy was used as the primary technique for this research. It was concluded that the profiles of the achieved spectrums from the experiments seem entirely dissimilar in comparison with the cases without external pressure. By employing electrochemical impedance spectroscopy, it was noticed that the pure ohmic resistance, which is related to ion transport resistance of the separator, could substantially result in the corresponding resistance increase.

An Active Equalizer for Serially Connected Lithium-Ion Battery Cells

2013 ◽  
Vol 732-733 ◽  
pp. 809-812 ◽  
Author(s):  
Hong Rui Liu ◽  
Chao Ying Xia
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
State Of Charge ◽  
Experimental Results ◽  
Battery Cell ◽  
Charging Current ◽  
In Series ◽  
Battery Cells

This paper proposes an equalizer for serially connected Lithium-ion battery cells. The battery cell with the lowest state of charge (SOC) is charged by the equalizer during the process of charging and discharging, and the balancing current is constant and controllable. Three unbalanced lithium-ion battery cells in series are selected as the experimental object by this paper. The discharging current under a certain UDDS and 20A charging current are used to complete respectively one time balancing experiment of discharging and charging to the three lithium-ion battery cells. The validity of the balancing strategy is confirmed in this paper according to the experimental results.

Lithium ion battery cells under abusive discharge conditions: Electrode potential development and interactions between positive and negative electrode

2017 ◽  
Vol 362 ◽  
pp. 278-282 ◽  
Author(s):  
Johannes Kasnatscheew ◽  
Markus Börner ◽  
Benjamin Streipert ◽  
Paul Meister ◽  
Ralf Wagner ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Electrode Potential ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Potential Development ◽  
Battery Cells

scholarly journals The Clay-like Mechanics Model of Cylindrical Lithium-Ion Battery Cells under Radial Compression

2016 ◽  
Vol 88 ◽  
pp. 652-655 ◽  
Author(s):  
WenWei Wang ◽  
Sheng Yang ◽  
FengChun Sun ◽  
QuanQing Yu
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Radial Compression ◽  
Mechanics Model ◽  
Battery Cells
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