2013年4月
Transient Phase Change in Two Phase Reaction between LiFePO4 and FePO4 under Battery Operation
CHEMISTRY OF MATERIALS
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- 巻
- 25
- 号
- 7
- 開始ページ
- 1032
- 終了ページ
- 1039
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/cm303411t
- 出版者・発行元
- AMER CHEMICAL SOC
Transient states of phase transition in LiFePO4/FePO4 for lithium ion battery positive electrodes are investigated by time-resolved measurements. To directly detect changes in electronic and crystal structures under battery operation, in situ time-resolved X-ray absorption and diffraction measurements are performed, respectively. The phase fraction change estimated by the iron valence change is similar to the electrochemically expected change. The transient change of lattice constant during two phase reaction is clearly observed by the time-resolved X-ray diffraction measurement. The nonequilibrium lithium extraction behavior deviates from the thermodynamic diagram of the two phase system, resulting in continuous phase transition during electrochemical reactions.
- リンク情報
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- DOI
- https://doi.org/10.1021/cm303411t
- J-GLOBAL
- https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201302237204935917
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000317438600003&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?eid=2-s2.0-84876007315&partnerID=MN8TOARS
- URL
- http://orcid.org/0000-0002-1491-2647
- ID情報
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- DOI : 10.1021/cm303411t
- ISSN : 0897-4756
- J-Global ID : 201302237204935917
- ORCIDのPut Code : 42857389
- SCOPUS ID : 84876007315
- Web of Science ID : WOS:000317438600003