201. Fabrication and electrochemical properties of a LiCoO2 and Li10GeP2S12 composite electrode for use in all-solid-state batteries
- Author
-
Kota Suzuki, Wen Jing Li, Ryoji Kanno, and Masaaki Hirayama
- Subjects
Materials science ,Composite number ,02 engineering and technology ,General Chemistry ,Electrolyte ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Lithium battery ,0104 chemical sciences ,Grinding ,Anode ,Surface coating ,chemistry.chemical_compound ,chemistry ,Electrode ,General Materials Science ,Composite material ,0210 nano-technology ,Lithium cobalt oxide - Abstract
Composite positive electrodes composed of a LiNbO3-coated LiCoO2 active material and a Li10GeP2S12 solid electrolyte were fabricated using a mill pot rotator, applying varying rotation rates, mixing durations and mill ball sizes. Mild grinding with a low rotation rate prevented significant aggregation of Li10GeP2S12 particles during the mixing process, leading to a well-dispersed composite with a large contact area between the LiCoO2 and Li10GeP2S12. An all-solid-state battery using the optimized composite cathode with the Li10GeP2S12 electrolyte and an In-Li anode delivered a first discharge capacity of 124 mAh g− 1, which is equal to the theoretical value for LiCoO2.
- Published
- 2016