Deterioration mechanism of the wettability of a lithium-ion battery separator induced by low-temperature discharge

Wang, Shenghui; Ma, Zhichao; Zhao, Wenyang; Guo, Zixin; Zhao, Hongwei; Ren, Luquan

doi:10.1016/j.apenergy.2024.123136

Cited by 1 publication

(1 citation statement)

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“…The discharging rates of 1C, 2C and 3C were suitable in terms of thermal stability and safety. Wang et al investigated the mechanism of deterioration of the wettability of lithium-ion battery separators caused by low-temperature discharge, and found that low-temperature discharge current can lead to performance degradation [13]. Zhang applied a predictive model to measure the thermal behavior of lithium battery modules under high charging and discharging rates [14].…”

Section: Introductionmentioning

confidence: 99%

Study on Discharge Characteristic Performance of New Energy Electric Vehicle Batteries in Teaching Experiments of Safety Simulation under Different Operating Conditions

Gong,

Chen,

Chen

et al. 2024

Energies

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High-voltage heat release from batteries can cause safety issues for electric vehicles. Relevant scientific research work is carried out in the laboratory. The battery safety of laboratory experiments should not be underestimated. In order to evaluate the safety performance of batteries in the laboratory testing of driving conditions of electric vehicles, this paper simulated and compared the discharge characteristics of two common batteries (lithium iron phosphate (LFP) battery and nickel–cobalt–manganese (NCM) ternary lithium battery) in three different operating conditions. The operating conditions are the NEDC (New European Driving Cycle), WLTP (World Light Vehicle Test Procedure) and CLTC-P (China light vehicle test cycle) for normal driving of electric vehicles. LFP batteries have a higher maximum voltage and lower minimum voltage under the same initial voltage conditions, with a maximum voltage difference variation of 11 V. The maximum current of WLTP is significantly higher than NEDC and CLTC-P operating conditions (>20 A). Low current discharge conditions should be emulated in teaching simulation and experiments for safety reasons. The simulation data showed that the LFP battery had good performance in maintaining the voltage plateau and discharge voltage stability, while the NCM battery had excellent energy density and long-term endurance.

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Section: Introductionmentioning

confidence: 99%