中国物理B ›› 2016, Vol. 25 ›› Issue (1): 14601-014601.doi: 10.1088/1674-1056/25/1/014601

所属专题: TOPICAL REVIEW — Fundamental physics research in lithium batteries

• TOPICAL REVIEW—Fundamental physics research in lithium batteries • 上一篇    下一篇

Mechanics of high-capacity electrodes in lithium-ion batteries

Ting Zhu   

  1. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
  • 收稿日期:2015-08-15 修回日期:2015-11-14 出版日期:2016-01-05 发布日期:2016-01-05
  • 通讯作者: Ting Zhu E-mail:ting.zhu@me.gatech.edu
  • 基金资助:

    Project support by the NSF (Grant Nos. CMMI 1100205 and DMR 1410936).

Mechanics of high-capacity electrodes in lithium-ion batteries

Ting Zhu   

  1. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
  • Received:2015-08-15 Revised:2015-11-14 Online:2016-01-05 Published:2016-01-05
  • Contact: Ting Zhu E-mail:ting.zhu@me.gatech.edu
  • Supported by:

    Project support by the NSF (Grant Nos. CMMI 1100205 and DMR 1410936).

摘要:

Rechargeable batteries, such as lithium-ion batteries, play an important role in the emerging sustainable energy landscape. Mechanical degradation and resulting capacity fade in high-capacity electrode materials critically hinder their use in high-performance lithium-ion batteries. This paper presents an overview of recent advances in understanding the electrochemically-induced mechanical behavior of the electrode materials in lithium-ion batteries. Particular emphasis is placed on stress generation and facture in high-capacity anode materials such as silicon. Finally, we identify several important unresolved issues for future research.

关键词: lithium-ion batteries, mechanics, electrochemistry, silicon

Abstract:

Rechargeable batteries, such as lithium-ion batteries, play an important role in the emerging sustainable energy landscape. Mechanical degradation and resulting capacity fade in high-capacity electrode materials critically hinder their use in high-performance lithium-ion batteries. This paper presents an overview of recent advances in understanding the electrochemically-induced mechanical behavior of the electrode materials in lithium-ion batteries. Particular emphasis is placed on stress generation and facture in high-capacity anode materials such as silicon. Finally, we identify several important unresolved issues for future research.

Key words: lithium-ion batteries, mechanics, electrochemistry, silicon

中图分类号:  (Fracture mechanics, fatigue and cracks)

  • 46.50.+a
62.20.-x (Mechanical properties of solids) 82.45.Fk (Electrodes)