Spinel-structured surface layers for facile Li ion transport and improved chemical stability of lithium manganese oxide spinel
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- 作者：Hae Ri Leea ; b ; 1 ; Hyo Ree Seoa ; 1 ; Boeun Leea ; Byung Won Choa ; Kwan-Young Leeb ; Si Hyoung Oha ; sho74@kist.re.kr" class="auth_mail" title="E-mail the corresponding author
- 关键词：LiMn2O4 ; Spinel ; Surface coating ; X-Ray absorption spectroscopy ; Oxidation state
- 刊名：Applied Surface Science
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：392
- 期：Complete
- 页码：448-455
- 全文大小：2130 K
文摘
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Spinel-structured surface layer with a high Li-ion conductivity and a good chemical stability was prepared.
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Simple wet process was developed to apply nano-scale surface layer on aluminum doped lithium manganese oxide spinel.
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The properties of nano-scale surface layer were characterized by analytical tools including GITT, HR-TEM and XAS.
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Materials with surface coating layer exhibit an excellent electrochemical performance at the elevated temperature.
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