|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Effect of Si-Based Anode Lithiation on Charging Characteristics of All-Solid-State Lithium-Ion Batteryстатья
- Авторы: Rudy Alexander S., Kurbatov Sergei V., Mironenko Alexander A., Naumov Victor V., Skundin Alexander M., Egorova Yulia S.
- Журнал: Batteries
- Том: 8
- Год издания: 2022
- Издательство: MDPI Publishing
- Местоположение издательства: Basel, Switzerland, Switzerland
- Номер статьи: 87
- DOI: 10.3390/batteries8080087
- Аннотация: The description of the design, manufacturing technology, and test results of thin-filmsolid-state lithium-ion batteries with a nanocomposite negative electrode Si@O@Al is given herein.This electrochemical system features the hike on the charging curve plateau, which is interpreted asthe change from I–V of the Ti-Si@O@Al contact. The latter is due to the change in the type of siliconconductivity during lithiation, as a result of which the ohmic metal-semiconductor contact provesto be biased in the reverse direction, and the charging current is maintained by minority chargecarriers. It is shown that the current-conducting component Si@O@Al is formed by a solid solutiona-Si(Al), which has a p-type conductivity. The change in the type of conductivity occurs as a resultof silicon compensation through lithiation. It was found that Si@O@Al is nonlinear conductor,which can be considered as a percolation cluster formed by amorphous silicon nanoparticles andmolecular clusters of silicon dioxide. The height of the Schottky barrier of the Ti|a-Si(Al) contactand the electron affinity of the a-Si(Al) solid solution were estimated.
- Добавил в систему: Скундин Александр Мордухаевич