Development of All-Solid Lithium Battery Using Quasi-Solid Rtil - Li-Salt - Silica Nano-Composite Electrolytes
Abstract
In this study, the authors developed the all-solid-state Li-ion cells by using the quasi-solid-state electrolyte consists of a pseudo-ternary mixture of room temperature ionic liquid (RTIL) - Li-salt - fumed silica nanoparticles. The all-solid-state cells with LiCoO2, LiMnO2, LiNiO2 and Li4Ti5O12 as cathodes and Li-metal as an anode were assembled and the battery performances were evaluated. Although comparatively thicker composite cathodes such as approximately 50 μm were employed, the all-solid-state cells successfully achieved high cathode utilizations of LiCoO2, LiMnO2, LiNiO2 and Li4Ti5O12 such as 80 %, 70 %, 75 % and 60 %, respectively, at 308 K with 0.05 C. The slow transport of Li-ions in our all-solid-state cells essentially limited the battery performances as in the cells with RTIL - Li-salt as electrolytes.
- Publication:
-
Solid State Ionics: Ionics for Sustainable World - Proceedings of the 13th Asian Conference. Edited by Kawamura Junichi et al. Published by World Scientific Publishing Co. Pte. Ltd
- Pub Date:
- July 2013
- DOI:
- 10.1142/9789814415040_0007
- Bibcode:
- 2013ssii.conf...55U