Method for manufacturing cell

US12482847B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12482847-B2
Application numberUS-202217985198-A
CountryUS
Kind codeB2
Filing dateNov 11, 2022
Priority dateDec 17, 2021
Publication dateNov 25, 2025
Grant dateNov 25, 2025

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A method for manufacturing a cell includes the steps of: preparing a housing portion having an opening; preparing a lid portion that includes a plate portion, a first external terminal located on the plate portion, and a second external terminal located on the plate portion at a position away from the first external terminal; placing the lid portion in the housing portion in such a manner that the plate portion closes the opening; placing a jig on an inter-terminal region of the plate portion that is located between the first external terminal and the second external terminal; and sealing the opening by joining the plate portion with the jig placed thereon and the housing portion together by welding.

First claim

Opening claim text (preview).

What is claimed is: 1 . A method for manufacturing a cell, the method comprising the steps of: preparing a housing portion having an opening; preparing a lid portion that includes a plate portion, a first external terminal located on the plate portion, and a second external terminal located on the plate portion at a position away from the first external terminal; placing the lid portion in the housing portion in such a manner that the plate portion closes the opening; placing a jig on an inter-terminal region of the plate portion that is located between the first external terminal and the second external terminal; and sealing the opening by joining the plate portion with the jig placed thereon and the housing portion together by welding, wherein in the step of placing the jig, the jig is placed so as to abut on each of the first external terminal and the second external terminal, wherein in the step of preparing the lid portion, the lid portion that is prepared further includes a first resin member provided so as to electrically insulate the plate portion and the first external terminal from each other, and a second resin member provided so as to electrically insulate the plate portion and the second external terminal from each other, the first external terminal includes a first side surface facing the second external terminal side, the first resin member includes a first outer edge portion located at least on the second external terminal side with respect to the first side surface, the second external terminal includes a second side surface facing the first external terminal side, and the second resin member includes a second outer edge portion located at least on the first external terminal side with respect to the second side surface; and wherein in the step of placing the jig, the jig includes a base portion, a first protruding portion protruding from the base portion, a second protruding portion protruding from the base portion on an opposite side from the first protruding portion, and a third protruding portion protruding from a part of the base portion that is different from the first protruding portion and the second protruding portion, and the jig is placed in such a manner that the first protruding portion abuts on the first side surface, the second protruding portion abuts on the second side surface, and the third protruding portion contacts the inter-terminal region while being separated from each of the first outer edge portion and the second outer edge portion. 2 . The method according to claim 1 , wherein: in the step of preparing the lid portion, the lid portion that is prepared includes the plate portion further including a liquid injection port; and in the step of placing the jig, the jig is placed so as to close the liquid injection port. 3 . The method according to claim 1 , wherein in the step of placing the jig, the jig is placed so as to be located away from a boundary between the plate portion and the housing portion.

Assignees

Inventors

Classifications

  • Closing or sealing filling ports, e.g. using lids · CPC title

  • by welding, brazing or soldering · CPC title

  • Spacers; Insulating plates · CPC title

  • outside the batteries, e.g. incorrect connections of terminals or busbars · CPC title

  • Filling ports · CPC title

Patent family

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External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US12482847B2 cover?
A method for manufacturing a cell includes the steps of: preparing a housing portion having an opening; preparing a lid portion that includes a plate portion, a first external terminal located on the plate portion, and a second external terminal located on the plate portion at a position away from the first external terminal; placing the lid portion in the housing portion in such a manner that …
Who is the assignee on this patent?
Toyota Motor Co Ltd, Prime Planet Energy & Solutions Inc, Primearth Ev Energy Co Ltd, and 1 more
What technology area does this patent fall under?
Primary CPC classification H01M10/04. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Nov 25 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).