Advanced nanostructured anode materials for lithium-ion batteries
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Advanced nanostructured anode materials for lithium-ion batteries
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| Creator |
Khomenko, V.G.
Senyk, I.V. Barsukov, V.Z. |
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| Subject |
nanocomposite
lithium-ion battery negative electrode |
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| Description |
The more popular active material for negative electrode is usually flake graphite due to its excellent cycle life (up to 1000 cycles). The main disadvantage of graphite is a relatively low specific capacity, because even the theoretical value is QCth = 372 mA.h/g. Si, Sn, Al, hard carbons and some other materials are actively investigated as the alternate materials for lithium-ion batteries. However, they have not received a practical application, since their large theoretical capacity is accompanied by sharp drop of capacity (during the few cycles), high irreversible capacity (up to 50 % and more), nonhorizontal shape of charge–discharge curves. The main reason of sharp capacity degradation is considerable (in 2-4 times) volume changes of these materials during intercalation- deintercalation of lithium ions. We have formulated some theoretical principles and developed the experimental composite nanostructured anode materials for lithium-ion batteries with high level of specific capacity (up to 600 mA.h/g), quite stable cyclization, minimal irreversible capacity (ca 8 %), horizontal shape of charge–discharge curves. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/20598 |
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| Publisher |
Sumy State University
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| Date |
2011-11-18T11:32:28Z
2011-11-18T11:32:28Z 2011 |
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| Type |
Article
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| Identifier |
Khomenko, V.G.
Advanced nanostructured anode materials for lithium-ion batteries [Текст] / V.G. Khomenko, I.V. Senyk, V.Z. Barsukov // Nanomaterials: applications & properties. Proceedings : 1-st International conference, Alushta, Crimea, 27-30 Semptember 2011 / Edited by: A. Pogrebnjak, T. Lyutyy, S. Protsenko. — Sumy : Sumy State University, 2011. — V.2, P.І. — C. 78-81.
http://essuir.sumdu.edu.ua/handle/123456789/20598 |
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| Language |
en
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