Energy storage device

US2020227693A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2020227693-A1
Application numberUS-201816633531-A
CountryUS
Kind codeA1
Filing dateJul 24, 2018
Priority dateJul 31, 2017
Publication dateJul 16, 2020
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Provided is an energy storage device which can sufficiently reduce a resistance of a current path. An energy storage device includes: an outer case having a lid plate on which an external terminal is mounted; a plate having a tab and housed in the outer case; a conductive shaft portion penetrating the lid plate and having one end thereof connected to the external terminal; and a conductive plate portion housed in the outer case, and having a first surface to which the other end of the conductive shaft portion is connected and a second surface to which the tab is connected, wherein a size of the conductive plate portion and a size of the tab are respectively set larger than a size of the external terminal in a planar direction of the lid plate.

First claim

Opening claim text (preview).

1 . An energy storage device comprising: an outer case having a lid plate on which an external terminal is mounted; a plate having a tab and housed in the outer case; a conductive shaft portion penetrating the lid plate and having one end thereof connected to the external terminal; and a conductive plate portion housed in the outer case, and having a first surface to which the other end of the conductive shaft portion is connected and a second surface to which the tab is connected, wherein a size of the conductive plate portion and a size of the tab are respectively set larger than a size of the external terminal in a planar direction of the lid plate. 2 . The energy storage device according to claim 1 , wherein the second surface of the conductive plate portion is formed flat, and the tab is connected to at least a portion of the conductive plate portion which is disposed opposite to the conductive shaft portion. 3 . The energy storage device according to claim 1 , wherein as viewed in cross section, one end and the other end of the conductive plate portion protrude from one side end and the other side end of the external terminal respectively in the planar direction of the lid plate, and the tab is connected to the conductive plate portion ranging from a portion of the conductive plate portion protruding from one side end of the external terminal to a portion of the conductive plate portion protruding from the other side end of the external terminal. 4 . The energy storage device according to claim 1 , wherein the conductive plate portion and the conductive shaft portion are integrally formed with each other. 5 . The energy storage device according to claim 1 , wherein a through hole is formed in the external terminal, and one end of the conductive shaft portion is inserted into the through hole and is swaged to the external terminal. 6 . An energy storage device comprising: an outer case having a lid plate on which an external terminal is mounted; a plate having a tab and housed in the outer case; a conductive shaft portion penetrating the lid plate and having one end thereof connected to the external terminal; and a conductive plate portion housed in the outer case, and having a first surface to which the other end of the conductive shaft portion is connected and a second surface to which the tab is connected, wherein a size of the conductive plate portion is set larger than a size of the external terminal in a planar direction of the lid plate, and the tab is connected to at least a portion of the conductive plate portion which is disposed opposite to the conductive shaft portion.

Assignees

Inventors

Classifications

  • H01M50/147Primary

    Lids or covers · CPC title

  • comprising a single busbar · CPC title

  • by welding, soldering or brazing · CPC title

  • Terminals adapted for prismatic, pouch or rectangular cells · CPC title

  • Connection only in series · CPC title

Patent family

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Frequently asked questions

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What does patent US2020227693A1 cover?
Provided is an energy storage device which can sufficiently reduce a resistance of a current path. An energy storage device includes: an outer case having a lid plate on which an external terminal is mounted; a plate having a tab and housed in the outer case; a conductive shaft portion penetrating the lid plate and having one end thereof connected to the external terminal; and a conductive plat…
Who is the assignee on this patent?
Bosch Gmbh Robert, Gs Yuasa Int Ltd
What technology area does this patent fall under?
Primary CPC classification H01M50/147. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Jul 16 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).