Battery pack

US9735406B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9735406-B2
Application numberUS-201214368716-A
CountryUS
Kind codeB2
Filing dateDec 28, 2012
Priority dateDec 28, 2011
Publication dateAug 15, 2017
Grant dateAug 15, 2017

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  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.

In a battery pack, a plurality of cells are arranged, the cells each have an outlet through which gas generated in the cell is released in one direction, each two of the cells are arranged as one unit, and the each two of the cells are arranged such that directions of gas released through the outlets of the two cells are opposite to each other.

First claim

Opening claim text (preview).

The invention claimed is: 1. A battery pack, comprising: a plurality of cells, wherein: each of the plurality of cells has a single outlet through which gas generated inside is released in one direction, each of the plurality of cells has a sealing plate with a protrusion where the single outlet is located, and two cells of the plurality of cells are arranged without a partition between the two cells such that the outlet of one of the two cells directly faces the outlet of another of the two cells such that directions of gas released through the respective outlets of the two cells are opposite to each other, wherein the two cells are arranged and configured such that each outlet of one of the two cells directly faces an outlet of the other of the two cells. 2. The battery pack of claim 1 , wherein a mark indicating a direction of gas released through the outlet is placed on a case for each of the plurality of cells. 3. The battery pack of claim 1 , wherein: each of the plurality of cells includes a cylindrical case having an opening, and the sealing plate configured to seal the opening and having a central portion including the protrusion, and only one outlet as the outlet is formed in a sidewall of the protrusion. 4. The battery pack of claim 3 , wherein the protrusion serves as an electrode terminal of the cell. 5. A battery pack, comprising: a plurality of cells, wherein: each of the plurality of cells has a single outlet through which gas generated inside is released in one direction, each of the plurality of cells has a sealing plate with a protrusion where the single outlet is located, and two cells of the plurality of cells are arranged along a longitudinal direction without a partition between the two cells whereby a top of one of the two cells directly faces a top of another of the two cells such that directions of gas released through the respective outlets of the two cells are opposite to each other, wherein the two cells are arranged and configured such that each outlet of one of the two cells directly faces an outlet of the other of the two cells. 6. The battery pack of claim 5 , wherein a mark indicating a direction of gas released through the outlet is placed on a case for each of the plurality of cells. 7. The battery pack of claim 5 , wherein: each of the plurality of cells includes a cylindrical case having an opening, and the sealing plate configured to seal the opening and having a central portion including the protrusion, and only one outlet as the outlet is formed in a sidewall of the protrusion. 8. The battery pack of claim 7 , wherein the protrusion serves as an electrode terminal of the cell.

Assignees

Inventors

Classifications

  • Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density · CPC title

  • having curved cross-section, e.g. round or elliptic (H01M50/103, H01M50/109, H01M50/11 take precedence) · CPC title

  • prismatic or rectangular (H01M50/109, H01M50/11 take precedence) · CPC title

  • adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title

  • adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

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

What does patent US9735406B2 cover?
In a battery pack, a plurality of cells are arranged, the cells each have an outlet through which gas generated in the cell is released in one direction, each two of the cells are arranged as one unit, and the each two of the cells are arranged such that directions of gas released through the outlets of the two cells are opposite to each other.
Who is the assignee on this patent?
Panasonic Corp, Panasonic Ip Man Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01M2/1264. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 15 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).