초록 ▼

A non-aqueous battery is provided in a pouchy casing comprising opposing sheets of at least three-layer laminates, each laminate comprising (1) an inner thermoplastic resin layer, (2) a middle metal foil layer, and (3) an outer electrically insulating material layer, wherein the pouchy casing has an

A non-aqueous battery is provided in a pouchy casing comprising opposing sheets of at least three-layer laminates, each laminate comprising (1) an inner thermoplastic resin layer, (2) a middle metal foil layer, and (3) an outer electrically insulating material layer, wherein the pouchy casing has an elongated, hermetic adhesion area along a periphery of the pouchy casing, and the middle metal foil layer has a peripheral elongated region in the elongated, hermetic adhesion area of the pouchy casing, and at least a pair of terminals electrically connected to the cathode and anode of the battery extends through and protrudes from the terminal-withdrawal sites in the elongated, hermetic adhesion area toward the outside of the pouchy casing, and the battery has at least one of the following features: (i) the peripheral elongated region of the middle metal foil layer has cut-out portions around the terminal-withdrawal sites and (ii) the surface of the peripheral edge of the pouchy casing is provided with electric insulation at least at portions around the terminal-withdrawal sites.

대표청구항 ▼

1. A non-aqueous battery of a thin configuration, comprising:(a) an electrochemical cell comprising a cathode, an anode and a non-aqueous electrolyte interposed between said cathode and said anode, (b) a hermetically sealed pouchy casing enveloping said electrochemical cell (a), and (c) at least a p

1. A non-aqueous battery of a thin configuration, comprising:(a) an electrochemical cell comprising a cathode, an anode and a non-aqueous electrolyte interposed between said cathode and said anode, (b) a hermetically sealed pouchy casing enveloping said electrochemical cell (a), and (c) at least a pair of terminals electrically connected to said cathode and said anode, said pouchy casing comprising opposing sheets of at least-three-layer laminates, each laminate comprising (1) an inner thermoplastic resin layer, (2) a middle metal foil layer and (3) an outer electrically insulating material layer, wherein said pouchy casing has an elongated, hermetic adhesion area along a periphery of the pouchy casing, in which adhesion area opposing inner thermoplastic resin layers (1) are melt-adhered to each other, thereby forming a hermetic seal of the pouchy casing, wherein said middle metal foil layer (2) has a peripheral elongated region in said elongated, hermetic adhesion area of the pouchy casing, said terminals extending through and protruding from terminal-withdrawal sites in said elongated, hermetic adhesion area toward the outside of said pouchy casing, wherein said non-aqueous battery satisfies at least one of the following characteristics (i) and (ii): (i) said peripheral elongated region of said middle metal foil layer (2) has cut-out portions around said terminal-withdrawal sites in said elongated hermetic adhesion area of said pouchy casing through which said terminals extend, wherein each of said cut-out portions in said peripheral elongated region of said middle metal foil layer in said elongated, hermetic adhesion area has a predetermined width-wise depth as viewed and measured in a direction of the width of said peripheral elongated region of said middle metal foil layer from a peripheral edge of a pouchy casing, and wherein portions of said peripheral elongated region of said middle metal foil layer that are not cut out remain in the elongated hermetic adhesion area and the width of each of the remaining non-cut-out portions of said metal foil layer is at least ten times the thickness of said inner thermoplastic resin layer (1) in said elongated, hermetic adhesion area; and (ii) the surface of the peripheral edge of the pouchy casing comprised of said laminate is provided with electric insulation at least at portions thereof around said terminal-withdrawal sites.