| 高镍三元正极材料锂离子电池的热失控分析 |
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| 引用本文： | 贾隆舟,郑莉莉,王栋,戴作强.高镍三元正极材料锂离子电池的热失控分析[J].电池,2022,52(1):58-62. |
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| 作者姓名： | 贾隆舟 郑莉莉 王栋 戴作强 |
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| 作者单位： | 青岛大学机电工程学院,山东青岛 266071;青岛大学动力集成及储能系统工程技术中心,山东青岛 266071 |
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| 摘 要： | 研究使用3种高镍三元正极材料Li(Ni0.8Co0.1Mn0.1)O2(NCM811)、Li(Ni0.5Co0.2Mn0.3)O2(NCM523)和 Li(Ni0.8Co0.15Al0.5)O2(NCA)]的锂离子电池在100％荷电状态(SOC)状态下的热失控特征参数.进行3组重复性实验,对比自产热起始温度θ1、热失...
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| 关 键 词： | 锂离子电池 高镍正极材料 三元正极材料 热失控 热安全性 |
Analysis of high nickel ternary cathode materials on thermal runaway of Li-ion battery |
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| JIA Long-zhou,ZHENG Li-li,WANG Dong,DAI Zuo-qiang.Analysis of high nickel ternary cathode materials on thermal runaway of Li-ion battery[J].Battery Bimonthly,2022,52(1):58-62. |
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| Authors: | JIA Long-zhou ZHENG Li-li WANG Dong DAI Zuo-qiang |
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| Affiliation: | (College of Mechanical and Electrical Engineering,Qingdao University,Qingdao,Shandong 266071,China;Engineering Technology Center of Power Integration and Energy Storage System,Qingdao University,Qingdao,Shandong 266071,China) |
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| Abstract: | The thermal runaway characteristic parameters of Li-ion battery with three kinds of high nickel ternary cathode materialsLi(Ni0.8Co0.1Mn0.1)O2(NCM811),Li(Ni0.5Co0.2Mn 0.3)O2(NCM523)and Li(Ni0.8Co0.15 Al0.5)O2(NCA)]in 100%state of charge(SOC)were studied.Three sets of repetitive tests were carried out.The start temperature of exothermic reactions(θ1),onset temperature of thermal runaway(θ2),maximum exothermic temperature(θ3)and temperature rise rate at the same temperature point were compared.The averageθ1 of NCM811 and NCM523 battery were 18.78℃and 12.19℃higher than NCA battery(82.15℃),respectively.The averageθ2 of NCM523 and NCA battery were 11.42℃and 3.08℃higher than NCM811 battery(148.75℃),respectively.The averageθ3 of NCM811 and NCA battery were84.80℃and 74.82℃higher than NCM523 battery(560.18℃),respectively.The average maximum temperature rise rate of NCM811 and NCA battery were 176.13℃/min and 143.85℃/min higher than NCM523 battery(387.27℃/min),respectively.The thermal safety of NCM523 battery was the highest,the thermal safety of NCM811 battery and NCA battery were similar. |
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| Keywords: | Li-ion battery high nickel cathode material ternary cathode material thermal runaway thermal safety |
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