論文

査読有り
2020年1月27日

Evidence of Copper Separation in Lithiated Cu6Sn5 Lithium-Ion Battery Anodes

ACS Applied Energy Materials
  • Xin F. Tan
  • ,
  • Wenhui Yang
  • ,
  • Kohei Aso
  • ,
  • Syo Matsumura
  • ,
  • Stuart D. McDonald
  • ,
  • Kazuhiro Nogita

3
1
開始ページ
141
終了ページ
145
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/acsaem.9b02014
出版者・発行元
American Chemical Society (ACS)

Copyright © 2019 American Chemical Society. Intermetallics such as Cu6Sn5, NiSi2, and CuGa2 etc., are promising candidate materials to replace carbon-based lithium-ion battery anodes. However, the lithiation reactions of these anodes often involve the separation of the inactive phases, a slow process that retards the lithiation kinetics and deactivates their role as a stress buffer. This research visualizes the separated Cu in a lithiated Cu6Sn5 anode by advanced transmission electron microscopy techniques. Cu nanospheres of 3-4 nm are found homogeneously distributed in both Li(13+y)Sn5 and Li13Cu6Sn5 phases, suggesting that Cu is transported by long-range diffusion from the reaction site at the Li(13+y)Sn5/Li13Cu6Sn5 phase boundaries.

リンク情報
DOI
https://doi.org/10.1021/acsaem.9b02014
URL
https://pubs.acs.org/doi/pdf/10.1021/acsaem.9b02014
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85077430551&origin=inward 本文へのリンクあり
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85077430551&origin=inward
ID情報
  • DOI : 10.1021/acsaem.9b02014
  • ISSN : 2574-0962
  • eISSN : 2574-0962
  • SCOPUS ID : 85077430551

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