Structural Changes in Si–CuSi Films upon Intercalation of Lithium Ions
- Авторлар: Buchin E.1, Mironenko A.1, Naumov V.1, Rudyi A.1, Fedorov I.2
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Мекемелер:
- Valiev Institute of Physics and Technology, Yaroslavl Branch, Russian Academy of Sciences
- Demidov State University
- Шығарылым: Том 45, № 10 (2019)
- Беттер: 973-976
- Бөлім: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/208442
- DOI: https://doi.org/10.1134/S1063785019100043
- ID: 208442
Дәйексөз келтіру
Аннотация
We studied the possibility of using composite films representing amorphous silicon reinforced with crystalline inclusions of copper silicide as an anode material for lithium-ion batteries with liquid electrolyte. The films were made by layer-by-layer magnetron sputtering of amorphous silicon and copper, followed by low-temperature (100–200°C) annealing of the structure. The tests of the anodes revealed the effect of prolonged intense growth of their reversible capacity. To describe the effect, a phenomenological model based on the multidirectional migration of silicon and copper atoms in an inhomogeneous field of elastic mechanical stresses arising during electrode cycling is proposed.
Негізгі сөздер
Авторлар туралы
E. Buchin
Valiev Institute of Physics and Technology, Yaroslavl Branch, Russian Academy of Sciences
Хат алмасуға жауапты Автор.
Email: imi.buchin@rambler.ru
Ресей, Yaroslavl, 150007
A. Mironenko
Valiev Institute of Physics and Technology, Yaroslavl Branch, Russian Academy of Sciences
Email: imi.buchin@rambler.ru
Ресей, Yaroslavl, 150007
V. Naumov
Valiev Institute of Physics and Technology, Yaroslavl Branch, Russian Academy of Sciences
Email: imi.buchin@rambler.ru
Ресей, Yaroslavl, 150007
A. Rudyi
Valiev Institute of Physics and Technology, Yaroslavl Branch, Russian Academy of Sciences
Email: imi.buchin@rambler.ru
Ресей, Yaroslavl, 150007
I. Fedorov
Demidov State University
Email: imi.buchin@rambler.ru
Ресей, Yaroslavl, 150003