Analysis on Vibration of Li-ion Battery Module Used for Electric Vehicle

Wang, Hongwei; Tao, Ziqiang; Fu, Yanjun; Li, Wenya; Cai, Yi

doi:10.12783/dtmse/icmsme2016/7495

Cited by 2 publications

(3 citation statements)

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“…The lithium-ion battery module's vibration experiments, which were employed for an electric vehicle, were investigated regarding open-circuit voltage [15]. The wettability of the battery cell's negative and positive plates was altered in the electrolyte during the vibrating process, remaining for a course long enough following vibration, the battery keeps its wettability constant, and its discharge capacity was partially regained.…”

Section: Overview Of Mechanical Stresses On Lithium-ion Batteriesmentioning

confidence: 99%

“…After and before the vibration process, no evident variation was seen in the battery module's Alternating Current (AC) internal resistance. The conductivity of the battery's active particles was considerably decreased, resulting in a decline in charge capacity and a rise in Direct Current (DC) internal resistance of the battery module [15].…”

Section: Overview Of Mechanical Stresses On Lithium-ion Batteriesmentioning

confidence: 99%

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

2021

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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.

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Section: Overview Of Mechanical Stresses On Lithium-ion Batteriesmentioning

confidence: 99%

Section: Overview Of Mechanical Stresses On Lithium-ion Batteriesmentioning

confidence: 99%

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

2021

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“…In [21], an aluminum-laminated cell packaging of HEVs was tested for mechanical and electrical durability according to three different types of vibration methods and the results met the durability standards need for vehicle applications. Vibration tests of battery modules used for EVs were researched in [22], and the results showed that the AC internal resistance of the lithium-ion battery module showed no obvious changes before and after the vibration, however, an increase in the DC internal resistance and a decrease in the charge capacity of the battery module were discovered. Studies simulating the impact of the actual road vibration conditions under laboratory environmental conditions have been successfully carried out.…”

Section: Introductionmentioning

confidence: 99%

Coupling Analysis and Performance Study of Commercial 18650 Lithium-Ion Batteries under Conditions of Temperature and Vibration

Zhang

Xiang-yu

2018

Energies

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At present, a variety of standardized 18650 commercial cylindrical lithium-ion batteries are widely used in new energy automotive industries. In this paper, the Panasonic NCR18650PF cylindrical lithium-ion batteries were studied. The NEWWARE BTS4000 battery test platform is used to test the electrical performances under temperature, vibration and temperature-vibration coupling conditions. Under the temperature conditions, the discharge capacity of the same battery at the low temperature was only 85.9% of that at the high temperature. Under the vibration condition, mathematical statistics methods (the Wilcoxon Rank-Sum test and the Kruskal-Wallis test) were used to analyze changes of the battery capacity and the internal resistance. Changes at a confidence level of 95% in the capacity and the internal resistance were considered to be significantly different between the vibration conditions at 5 Hz, 10 Hz, 20 Hz and 30 Hz versus the non-vibration condition. The internal resistance of the battery under the Y-direction vibration was the largest, and the difference was significant. Under the temperature-vibration coupling conditions, the orthogonal table L9 (34) was designed. It was found out that three factors were arranged in order of temperature, vibration frequency and vibration direction. Among them, the temperature factor is the main influencing factor affecting the performance of lithium-ion batteries.

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Analysis on Vibration of Li-ion Battery Module Used for Electric Vehicle

Cited by 2 publications

References 0 publications

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

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

Coupling Analysis and Performance Study of Commercial 18650 Lithium-Ion Batteries under Conditions of Temperature and Vibration

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