Optimization of Ni2+/Ni3+ Ratio in Layered Li(Ni,Mn,Co)O2 Cathodes for Better Electrochemistry Научная публикация
Конференция |
13th International Meeting on Lithium Batteries 18-23 июн. 2006 , Biarritz |
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Журнал |
Journal of Power Sources
ISSN: 0378-7753 |
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Вых. Данные | Год: 2007, Том: 174, Номер: 2, Страницы: 965-969 Страниц : 5 DOI: 10.1016/j.jpowsour.2007.06.051 | ||||
Ключевые слова | Electrochemical study, Layered Ni-based cathodes, Lithium-ion batteries, Mechanical activation, Ni2+/Ni3+ ratio, XPS study | ||||
Авторы |
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Организации |
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Информация о финансировании (1)
1 | Российский фонд фундаментальных исследований | 05-03-32703 |
Реферат:
A study of the LiNi1−x−yCoxMnyO2 (x = y = 0.1; 0.2; 0.33) cathode materials prepared from mixed hydroxides and LiOH using the method of mechanical activation has been performed. All as prepared materials were indexed in the R-3m space group. The cell volume and the degree of structural disordering decrease with reducing of Ni content. According to XPS study, the main electronic state of d-ions in the surface layer of particles corresponds to Ni2+, Co3+ and Mn4+. However, the Ni2p3/2 and Co2p3/2 binding energy increases versus Ni content, indicating the increased Mesingle bondO bond covalency. The highest specific discharge capacity was observed for LiNi0.6Co0.2Mn0.2O2—170 mAh g−1. The position of redox peaks on the differential capacity curves depends on the composition of the sample: it shifts towards lower voltage with increased Ni content.
Библиографическая ссылка:
Kosova N.V.
, Devyatkina E.T.
, Kaichev V.V.
Optimization of Ni2+/Ni3+ Ratio in Layered Li(Ni,Mn,Co)O2 Cathodes for Better Electrochemistry
Journal of Power Sources. 2007. V.174. N2. P.965-969. DOI: 10.1016/j.jpowsour.2007.06.051 WOS Scopus РИНЦ
Optimization of Ni2+/Ni3+ Ratio in Layered Li(Ni,Mn,Co)O2 Cathodes for Better Electrochemistry
Journal of Power Sources. 2007. V.174. N2. P.965-969. DOI: 10.1016/j.jpowsour.2007.06.051 WOS Scopus РИНЦ
Даты:
Опубликована online: | 23 июн. 2007 г. |
Опубликована в печати: | 6 дек. 2007 г. |
Идентификаторы БД:
Web of science | WOS:000252020500117 |
Scopus | 2-s2.0-36148940586 |
РИНЦ | 13540475 |
Chemical Abstracts | 2007:1344307 |
Chemical Abstracts (print) | 150:286587 |
OpenAlex | W2084282038 |