US 2024/0178494 A1Published application

Electrical storage device

AssigneePrime Planet Energy & Solutions, Inc.

InventorRyoichi WAKIMOTO

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Abstract

Provided is an electrical storage device, having high reliability of sealing properties in the vicinity of a through hole. The electrical storage device disclosed herein includes an electrode body, a case, and a first current collecting member. The case includes a first wall having a first through hole. The first current collecting member has a first region placed along the inner surface of the first wall. A projection part, projecting to the first wall, is in the first region. A part of the projection part is in the first through hole. The first current collecting member has a first slit is between the first region and a second region on the opposite site of the first side. The second region is placed along the inner surface of the first wall. The second region faces the inner surface of the first wall with the insulating member therebetween.

Claims9

Dependent claims

An electrical storage device, comprising

an electrode body comprising a first electrode and a second electrode,
a case that accommodates the electrode body, and
a first current collecting member electrically connected to the first electrode, wherein
the case has a first wall,
the first wall has a first through hole,
the first current collecting member has a first region placed along an inner surface of the first wall,
a projection part, projecting to the first wall, is provided in the first region,
at least part of the projection part is placed within the first through hole,
the first current collecting member has a second region on a transverse side of the first region,
a first slit is formed between the first region and the second region,
the second region is placed along the inner surface of the first wall, and
the second region faces the inner surface of the first wall with an insulating member therebetween.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/490,755Filed 20 Oct 2023
Priority: JP 2022-19052129 Nov 2022
Published: 30 May 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H01M 50/188
Characterised by the disposition of the sealing members: the sealing members being arranged between the lid and terminal
H01M 10/658
Means for temperature control structurally associated with the cells: by thermal insulation or shielding
H01M 50/103
Characterised by their shape or physical structure: prismatic or rectangular
H01M 50/172
Primary casings; Jackets or wrappings: arrangements of electric connectors penetrating the casing

Family

No related US applications are recorded in the indexed filing history.

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