期刊
JOURNAL OF MATERIOMICS
卷 2, 期 3, 页码 256-264出版社
ELSEVIER
DOI: 10.1016/j.jmat.2016.04.003
关键词
Cathodes; Garnet-type solid electrolyte; Reactivity
资金
- China Postdoctoral Science Foundation [043202211]
- National Natural Science Foundation of China [51221291]
High-temperature chemical compatibilities between garnet-like solid state electrolyte of Li6.75La3Zr1.75Ta0.25O12 (LLZTO) and the four major commercial lithium battery cathode materials, i. e., LiCoO2 (LCO), LiMn2O4 (LMO), LiNi0.33Co0.33Mn0.33O2 (NCM) and LiFePO4 (LFP) were investigated by X-ray diffraction (XRD), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS), respectively. The same volume fraction of LLZTO and electrode powders were mixed and heated at 400-900 degrees C for 1 h. According to the results by XRD, LMO and LFP react with LLZTO at approximately 500 degrees C. The Raman data reveal that both LCO and NCM can react with LLZTO at approximately 700 degrees C, which lead to generate LaCoO3 and LaCo1-xMnxO3 with a rhombohedral symmetry, respectively. (C) 2016 The Chinese Ceramic Society. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.
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