Solid-state battery and method of manufacturing solid-state battery
AssigneeMurata Manufacturing Co., Ltd.
InventorsTakahiro Hayakawa, Keisuke Shimizu
Life of this patent
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Abstract
A solid state battery that includes: a battery element including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer; an end-face electrode facing the end surface of the battery element; a covering layer covering the battery element with the end-face electrode; and an insulating buffer layer between the covering layer and the battery element and surrounding the battery element, wherein the insulating buffer layer is also sandwiched between the battery element and the end-face electrode and arranged intermittently on an end-face electrode facing region side of the end surface of the battery element.
Claims20
A solid state battery comprising:
- a battery element comprising a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer;
- an end-face electrode facing an end surface of the battery element;
- a covering layer covering the battery element with the end-face electrode;
- and
- an insulating buffer layer between the covering layer and the battery element and surrounding the battery element, wherein the insulating buffer layer is also sandwiched between the battery element and the end-face electrode and arranged intermittently on an end-face electrode facing region side of the end surface of the battery element.
A method for manufacturing a solid state battery, the method comprising:
- stacking a positive electrode layer sheet, a solid electrolyte layer sheet, and a negative electrode layer sheet in a stacking direction to form an unfired stacked body;
- providing an insulating material intermittently on a surface of the unfired stacked body;
- firing the unfired stacked body with the insulating material to form a fired laminated body;
- providing an end-face electrode on a surface of the fired laminated body having the intermittent insulating material;
- and
- forming a covering layer to cover the fired laminated body with the end-face electrode.
Dependencies are inferred from the claim text.