Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7745258 | Solid State Ionics | 2016 | 4 Pages |
Abstract
LiNbO3-coated LiNi0.5Mn1.5O4 powders were synthesized by a sol-gel method, and their intercalation property as a cathode material was investigated using all-solid-state batteries with Li10GeP2S12 solid electrolyte and In-Li metal anode. The LiNbO3 coating delivered reversible lithium intercalation of LiNi0.5Mn1.5O4 through an electrochemical interface with the Li10GeP2S12. Oxygen-deficient LiNi0.5Mn1.5O4âδ with a higher electronic conductivity than LiNi0.5Mn1.5O4 improved the intercalation activity. An all-solid-state battery consisting of 3 wt.%-LiNbO3-coated LiNi0.5Mn1.5O4âδ/Li10GeP2S12/In-Li exhibited a discharge capacity of 80 mAh gâ 1 at the first cycle with an average discharge voltage of 4.1 V (vs. In-Li), which demonstrates the possibility of 5 V class all-solid-state batteries with a high voltage spinel cathode.
Related Topics
Physical Sciences and Engineering
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Authors
Gwangseok Oh, Masaaki Hirayama, Ohmin Kwon, Kota Suzuki, Ryoji Kanno,