کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760312 | 1498046 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparative study of Li[CrTi]O4, Li[Li1/3Ti5/3]O4 and Li1/2Fe1/2[Li1/2Fe1/2Ti]O4 in non-aqueous lithium cells
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Comparative study of Li[CrTi]O4, Li[Li1/3Ti5/3]O4 and Li1/2Fe1/2[Li1/2Fe1/2Ti]O4 in non-aqueous lithium cells Comparative study of Li[CrTi]O4, Li[Li1/3Ti5/3]O4 and Li1/2Fe1/2[Li1/2Fe1/2Ti]O4 in non-aqueous lithium cells](/preview/png/9760312.png)
چکیده انگلیسی
Comparative study of Li[CrTi]O4, Li[Li1/3Ti5/3]O4 and Li1/2Fe1/2[Li1/2Fe1/2Ti]O4 was carried out in order to understand zero-strain insertion mechanism. Degree of defect defined by the occupation of lithium ions at 16(d) sites in Fd3¯m is 0% in Li[CrTi]O4, 17% in Li[Li1/3Ti5/3]O4 and 25% in Li1/2Fe1/2[Li1/2Fe1/2Ti]O4. Electrochemical tests in non-aqueous lithium cells indicated that no fatal damage was observed with respect to XRD even for 25% defect of spinel-framework structure based on lithium titanium oxides. All samples examined here show the character of so-called zero-strain lithium insertion materials while Li1/2Fe1/2[Li1/2Fe1/2Ti]O4 is converted to a rock-salt structure of Li3/2Fe1/2[Li1/2Fe1/2Ti]O4 in which Fe3+ ions at the tetrahedral sites move to the octahedral sites by changing oxidation state on reduction. FT-IR and Raman spectral measurements were also carried out and the factors affecting zero-strain insertion mechanism were discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 213-216
Journal: Journal of Power Sources - Volume 146, Issues 1â2, 26 August 2005, Pages 213-216
نویسندگان
Kazuhiko Mukai, Kingo Ariyoshi, Tsutomu Ohzuku,