Gas evolution characterization and phase transformation during thermal treatment of cathode plates from spent LiFePO 4 batteries
废LiFePO 4电池阴极板热处理过程中的析气特性及相变
作者: Yafei JieShenghai YangFang HuYun LiLonggang YeDuoqiang ZhaoWei JinCong ChangYanqing LaiYongming Chen
作者单位: 1School of Metallurgy and Environment, Central South University, Changsha, 410083, China
2Hydrometallurgy and Corrosion, Department of Chemical and Metallurgical Engineering (CMET), School of Chemical Engineering, Aalto University, P.O. Box 16200, FI-00076, AALTO, Finland
3College of Metallurgy and Material Engineering, Hunan University of Technology, Zhuzhou, 41200, China
刊名: Thermochimica Acta, 2020, Vol.684
来源数据库: Elsevier Journal
DOI: 10.1016/j.tca.2019.178483
关键词: Spent LFPBsCathode electrodesThermal treatmentGas evolutionPhase transformation
原始语种摘要: Abstract(#br)In this paper, thermal reaction behaviors and gas evolution characteristics of cathode electrodes separated from spent LiFePO 4 batteries were systematically characterized using thermogravimetric-differential scanning calorimetry analysis coupled with mass spectrometry equipped with electron ionization system (TG-DSC-EI-MS). TG-DSC-EI-MS analysis indicated tail gases were mainly released in a low-temperature range of 60−250 °C, which attributed to the hydrolysis and decomposition reactions of lithium salt electrolyte. Additionally, H 2 O, HF and CO 2 were detected at the range of 380−600 °C, which responded to thermal decomposition of the binder. H 2 O and CO 2 were the main gaseous products at around 520 °C, which might be released from the oxidation combustion reactions of...
全文获取路径: Elsevier  (合作)
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影响因子:1.989 (2012)

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关键词翻译
关键词翻译
  • thermal 热的
  • cathode 阴极
  • transformation 变换
  • evolution 进化
  • treatment 处理
  • binder 粘合剂
  • attributed 属性
  • spent 消耗的
  • phase 相位
  • heating 加热