Thermal hazard evaluation of 18650 lithium-ion batteries at various discharge rates

Lai, Yen-Wen; Chi, Kuang-Hui; Chung, Yi-Hong; Liao, Sheng-Wei; Shu, Chi-Min

doi:10.1016/j.jlp.2024.105323

Cited by 1 publication

(1 citation statement)

References 26 publications

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“…Lai et al evaluated the thermal hazard of 18,650 lithium-ion batteries at different discharge rates (1C, 2C, 3C and 4C) [12]. The discharge capacity and discharge energy values were 3.117 Ah and 9.021 Wh during the 4C discharge rate.…”

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%