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首页> 外文期刊>Journal of power sources >Gas swelling behaviour at different stages in Li4Ti5O12/LiNi1/3Co1/3Mn1/3O2 pouch cells
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Gas swelling behaviour at different stages in Li4Ti5O12/LiNi1/3Co1/3Mn1/3O2 pouch cells

机译：Li4Ti5O12 / LiNi1 / 3Co1 / 3Mn1 / 3O2袋式电池在不同阶段的气体膨胀行为

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摘要

Gas swelling behaviour is a major drawback of batteries that are based on Li4Ti5O12 anode materials and hinders their application. In this article, the morphology and electronic structure changes of Li4Ti5O12 electrodes at ageing and cycling stages are investigated using scanning electron microscopy, X-ray absorption near-edge structure and X-ray photoelectron spectroscopy. A simple method that uses an air bag to collect the generated gases was conducted and the gases were then characterised by gas chromatography/mass spectrometry. The results indicate that the charge transformation of Ti ions would aggravate the gas swelling behaviour. The solid electrolyte interphase (SEI) films form on the surface of the Li4Ti5O12 particles and become thicker with increasing charge state. The gas components change significantly during the ageing and cycling, indicating the complexity of the gas swelling mechanism. (C) 2017 Elsevier B.V. All rights reserved.
机译：气体膨胀行为是基于Li4Ti5O12阳极材料的电池的主要缺点，并阻碍了其应用。本文利用扫描电子显微镜，X射线吸收近边缘结构和X射线光电子能谱研究了Li4Ti5O12电极在老化和循环阶段的形貌和电子结构变化。进行了使用气囊收集产生的气体的简单方法，然后通过气相色谱/质谱法对气体进行表征。结果表明，Ti离子的电荷转化将加剧气体膨胀行为。固态电解质中间相（SEI）膜形成在Li4Ti5O12颗粒的表面上，并且随着电荷状态的增加而变厚。气体成分在老化和循环过程中发生显着变化，表明气体溶胀机理的复杂性。 （C）2017 Elsevier B.V.保留所有权利。

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  • 来源
    《Journal of power sources》 |2017年第30期|103-110|共8页
  • 作者

    Liu Wei; Liu Haohan; Wang Qian; Zhang Jian; Xia Baojia; Min Guoquan;

  • 作者单位

    Shanghai Ind Technol Inst, Lithium Ion Battery Innovat Ctr, Shanghai 201206, Peoples R China|Shanghai Nanotechnol Promot Ctr, Nanotechnol Lab, Shanghai 200237, Peoples R China|Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China;

    Shanghai Ind Technol Inst, Lithium Ion Battery Innovat Ctr, Shanghai 201206, Peoples R China|Shanghai Nanotechnol Promot Ctr, Nanotechnol Lab, Shanghai 200237, Peoples R China;

    Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China;

    Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China;

    Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China;

    Shanghai Ind Technol Inst, Lithium Ion Battery Innovat Ctr, Shanghai 201206, Peoples R China|Shanghai Nanotechnol Promot Ctr, Nanotechnol Lab, Shanghai 200237, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Lithium titanate; Pouch cell; X-ray absorption near edge; Gas swelling;

    机译：钛酸锂;囊袋;边缘附近的X射线吸收;气体溶胀;

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