Electric power storage device, fixing jig, and method for manufacturing electric power storage device
AssigneeDai Nippon Printing Co., Ltd.
InventorsSayako KANAZAWA, Kae MIYASHIRO, Toshibumi URIU, Miho SASAKI
Life of this patent
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Abstract
An electric power storage device includes an electrode body and an exterior body that seals the electrode body. The outer package includes: an outer package film that wraps the electrode body; a body portion in which at least the electrode body is wrapped by the outer package film; a protruding portion in which the outer package film protrudes outward from the body portion; a first seal portion in which surfaces facing each other of the exterior films of the protruding part are sealed, and a fixing jig for suppressing movement of the protruding portion with respect to the body portion.
Claims14
An electrical storage device comprising:
- an electrode assembly;
- and
- an outer packaging that seals the electrode assembly,
- wherein the outer packaging includes
- an outer package film that wraps the electrode assembly,
- a body portion in which at least the electrode assembly is wrapped by the outer package film,
- a bulging portion at which the outer package film bulges outward from the body portion,
- a first seal portion, at which mutually facing surfaces of the outer package film are sealed, in the bulging portion, and
- a fixing jig that suppresses movement of the bulging portion with respect to the body portion.
A fixing jig that is attached to at least an electrical storage device and an intermediate body of the electrical storage device, wherein
- the electrical storage device or the intermediate body includes
- an electrode assembly,
- an outer package film that wraps the electrode assembly,
- a body portion in which at least the electrode assembly is wrapped by the outer package film, and
- a bulging portion at which the outer package film bulges outward from the body portion, and
- the fixing jig is configured to suppress movement of the bulging portion with respect to the body portion.
A method for manufacturing an electrical storage device,
- the electrical storage device including
- an electrode assembly, and
- an outer packaging that seals the electrode assembly,
- the outer packaging including
- an outer package film that wraps the electrode assembly,
- a body portion in which at least the electrode assembly is wrapped by the outer package film,
- a bulging portion at which the outer package film bulges outward from the body portion, and
- a first seal portion, at which mutually facing surfaces of the outer package film are sealed, in the bulging portion,
- the method comprising:
- a wrapping process of wrapping at least the electrode assembly by the outer package film such that the body portion and the bulging portion are formed;
- and
- a jig disposition process of disposing a fixing jig that suppresses movement of the bulging portion with respect to the body portion, the jig disposition process being performed later than the wrapping process.
Dependencies are inferred from the claim text.