储能科学与技术 ›› 2018, Vol. 7 ›› Issue (S1): 17-25.doi: 10.12028/j.issn.2095-4239.2018.0008

• 研究及进展 • 上一篇    下一篇

锂离子电池负极材料钛酸锂的研究进展

刘鲁静, 贾志军, 王毅, 齐涛   

  1. 中国科学院过程工程研究所湿法冶金清洁生产技术国家工程实验室, 北京 100190
  • 收稿日期:2018-01-19 修回日期:2018-03-10 出版日期:2018-12-05 发布日期:2018-12-05
  • 通讯作者: 王毅(1975-),男,研究员,从事燃料电池催化剂、电极材料等方面的研究,E-mail:wangyi@ipe.ac.cn。
  • 作者简介:王毅(1975-),男,研究员,从事燃料电池催化剂、电极材料等方面的研究,E-mail:wangyi@ipe.ac.cn。
  • 基金资助:
    中国科学院百人计划项目。

Recent research progress of Li4Ti5O12 as anode materials for lithium-ion batteries

LIU Lujing, JIA Zhijun, WANG Yi, QI Tao   

  1. National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2018-01-19 Revised:2018-03-10 Online:2018-12-05 Published:2018-12-05

摘要: 锂离子电池凭借诸多优势广泛应用于便携式电子产品(3C)领域,在电动汽车及可穿戴设备方面具有巨大应用前景,是未来最具潜力的储能电池之一。作为一种锂离子电池负极材料,尖晶石型Li4Ti5O12相比石墨负极具有较高嵌锂电位,且"零应变材料"的特性决定Li4Ti5O12材料具有较好的循环稳定性及热稳定性,从而备受关注。本文简要介绍了钛酸锂(Li4Ti5O12)的结构和性能,详细阐明了Li4Ti5O12的嵌锂机制、制备及改性方法,总结了相应制备及改性方法对Li4Ti5O12材料的充放电特性、循环性能等电化学性能的影响,针对Li4Ti5O12的胀气产生原因、机制和胀气解决方法进行简单阐述,并对纯电动乘用车的应用前景提出了几点建议。

关键词: 锂离子电池, 负极材料, 钛酸锂, 零应变材料

Abstract: Lithium-ion battery, which has a great successful application in the portable electronics, is believed the most promising power source for electric vehicles and wearable devices. Moreover, it also has a great potential in application of mass energy storage. As the anode material of lithium-ion battery, spinel lithium titanate (Li4Ti5O12) has been intensively studied as a promising alternative to graphite, given to its high potential during charging and discharging, excellent cycling stability, and high thermal stability and safety, which are associated with its zero-strain character. In this review, the structure and performance of Li4Ti5O12 were introduced briefly. The mechanism of lithium inserting, synthetic and modification methods for Li4Ti5O12as anode material for Lithium-ion battery were reviewed, and the effect of synthetic and modification methods on electrochemical performance such as charge and discharge capability, cycle performance of Li4Ti5O12was analyzed. The influencing factors and possible mechanism for gassing behavior in battery working process and the suppressing methods are briefly described. Moreover, suggestions on the prospect of the application of electric vehicles (EVs) in China are also put forward in this review.

Key words: lithium ion battery, anode materials, lithium titanate, zero-strain materials

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