Quality monitoring methods of initial and terminal manufacture of LiFePO4 based lithium ion batteries by capillary electrophoresis
文献类型：期刊论文
| 作者 | Xie, Xia; Yang, Yang; Zhou, Henghui; Li, Meixian; Zhu, Zhiwei |
| 刊名 | TALANTA
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 179页码:822-827 |
| 关键词 | Capillary Electrophoresis Lithium Ion Battery Fepo4 Lifepo4 Magnetic Impurities |
| ISSN号 | 0039-9140 |
| DOI | 10.1016/j.talanta.2017.12.004 |
| 英文摘要 | Magnetic impurities of lithium ion battery degrade both the capacity and cycling rates, even jeopardize the safety of the battery. During the material manufacture of LiFePO4, two opposite and extreme cases (trace impurity Fe(II) with high content of Fe(III) background in FePO4 of initial end and trace Fe(III) with high content of Fe(II) background in LiFePO4 of terminal end) can result in the generation of magnetic impurities. Accurate determination of impurities and precise evaluation of raw material or product are necessary to ensure reliability, efficiency and economy in lithium ion battery manufacture. Herein, two kinds of rapid, simple, and sensitive capillary electrophoresis (CE) methods are proposed for quality monitoring of initial and terminal manufacture of LiFePO4 based lithium ion batteries. The key to success includes the smart use of three common agents 1,10-phenanthroline (phen), EDTA and cetyltrimethyl ammonium bromide (CTAB) in sample solution or background electrolyte (BGE), as well as sample stacking technique of CE feature. Owing to the combination of field-enhanced sample injection (FESI) technique with high stacking efficiency, detection limits of 2.5 nM for Fe(II) and 0.1 mu M for Fe(III) were obtained corresponding to high content of Fe(III) and Fe(II), respectively. The good recoveries and reliability demonstrate that the developed methods are accurate approaches for quality monitoring of LiFePO4 manufacture. |
| 语种 | 英语 |
| WOS记录号 | WOS:000424178000110 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/45745]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhu, Zhiwei |
| 作者单位 | Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Xia,Yang, Yang,Zhou, Henghui,et al. Quality monitoring methods of initial and terminal manufacture of LiFePO4 based lithium ion batteries by capillary electrophoresis[J]. TALANTA,2018,179:822-827. |
| APA | Xie, Xia,Yang, Yang,Zhou, Henghui,Li, Meixian,&Zhu, Zhiwei.(2018).Quality monitoring methods of initial and terminal manufacture of LiFePO4 based lithium ion batteries by capillary electrophoresis.TALANTA,179,822-827. |
| MLA | Xie, Xia,et al."Quality monitoring methods of initial and terminal manufacture of LiFePO4 based lithium ion batteries by capillary electrophoresis".TALANTA 179(2018):822-827. |
入库方式： OAI收割
来源：化学研究所
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