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US 2020/0028215 A1Published application
All-solid-state lithium ion secondary battery
AssigneeTDK Corporation
InventorsHiroshi SATO, Keiko TAKEUCHI, Masayuki MUROI, Taisuke MASUKO, Hisaji OYAKE, Tomohiro YANO
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Abstract
An all-solid-state lithium ion secondary battery includes a plurality of electrode layers that are laminated with a solid electrolyte layer therebetween, a current collector layer and an active material layer being laminated in each of the electrode layers, the current collector layers contain Cu, and Cu-containing regions are formed at grain boundaries that are present near the current collector layer among grain boundaries of particles that form the active material layer.
Claims6
An all-solid-state lithium ion secondary battery comprising:
- a plurality of electrode layers that are laminated with a solid electrolyte layer therebetween, a current collector layer and active material layer being laminated in each of the electrode layers,
- wherein the current collector layers contain Cu, and
- Cu-containing regions are formed at grain boundaries that are present near the current collector layer among grain boundaries of particles that form the active material layer.
Dependencies are inferred from the claim text.