中国物理B ›› 2016, Vol. 25 ›› Issue (1): 17104-017104.doi: 10.1088/1674-1056/25/1/017104

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

Soft x-ray spectroscopy for probing electronic and chemical states of battery materials

Wanli Yang(杨万里) and Ruimin Qiao(乔瑞敏)   

  1. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
  • 收稿日期:2015-06-21 修回日期:2015-07-14 出版日期:2016-01-05 发布日期:2016-01-05
  • 通讯作者: Wanli Yang E-mail:wlyang@lbl.gov

Soft x-ray spectroscopy for probing electronic and chemical states of battery materials

Wanli Yang(杨万里) and Ruimin Qiao(乔瑞敏)   

  1. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
  • Received:2015-06-21 Revised:2015-07-14 Online:2016-01-05 Published:2016-01-05
  • Contact: Wanli Yang E-mail:wlyang@lbl.gov

摘要:

The formidable challenge of developing high-performance battery system stems from the complication of battery operations, both mechanically and electronically. In the electrodes and at the electrode-electrolyte interfaces, chemical reactions take place with evolving electron states. In addition to the extensive studies of material synthesis, electrochemical, structural, and mechanical properties, soft x-ray spectroscopy provides unique opportunities for revealing the critical electron states in batteries. This review discusses some of the recent soft x-ray spectroscopic results on battery binder, transition-metal based positive electrodes, and the solid-electrolyte-interphase. By virtue of soft x-ray's sensitivity to electron states, the electronic property, the redox during electrochemical operations, and the chemical species of the interphases could be fingerprinted by soft x-ray spectroscopy. Understanding and innovating battery technologies need a multimodal approach, and soft x-ray spectroscopy is one of the incisive tools to probe the chemical and physical evolutions in batteries.

关键词: soft x-ray spectroscopy, batteries, solid-electrolyte-interphase, electronic structure

Abstract:

The formidable challenge of developing high-performance battery system stems from the complication of battery operations, both mechanically and electronically. In the electrodes and at the electrode-electrolyte interfaces, chemical reactions take place with evolving electron states. In addition to the extensive studies of material synthesis, electrochemical, structural, and mechanical properties, soft x-ray spectroscopy provides unique opportunities for revealing the critical electron states in batteries. This review discusses some of the recent soft x-ray spectroscopic results on battery binder, transition-metal based positive electrodes, and the solid-electrolyte-interphase. By virtue of soft x-ray's sensitivity to electron states, the electronic property, the redox during electrochemical operations, and the chemical species of the interphases could be fingerprinted by soft x-ray spectroscopy. Understanding and innovating battery technologies need a multimodal approach, and soft x-ray spectroscopy is one of the incisive tools to probe the chemical and physical evolutions in batteries.

Key words: soft x-ray spectroscopy, batteries, solid-electrolyte-interphase, electronic structure

中图分类号:  (Other topics in electronic structure)

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