Battery pack configuration to reduce hazards associated with internal short circuits

US8932739B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8932739-B2
Application numberUS-201113088444-A
CountryUS
Kind codeB2
Filing dateApr 18, 2011
Priority dateAug 4, 2010
Publication dateJan 13, 2015
Grant dateJan 13, 2015

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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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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A battery pack, or battery pack module, is provided that is configured to respond to a short circuit of moderate current in a manner that minimizes the risk of an initial thermal runaway event propagating throughout the battery pack/battery pack module. In general, the battery pack/battery module allows pre-selection of which cell of the cells comprising the battery pack/battery pack module will be the last cell to respond to the short circuit. As a result, a thermal isolation barrier may be used to separate the preselected cell from the other cells of the battery pack/battery pack module, thereby minimizing the risk of excessive heating and extensive collateral damage.

First claim

Opening claim text (preview).

What is claimed is: 1. A battery pack short circuit management system, comprising: a battery pack, comprising: a plurality of cells each of which is characterized by a set of operating characteristics, wherein each of said cells is electrically connected to a first collector plate and a second collector plate, and wherein each of said plurality of cells further comprises a first internal short circuit safety mechanism configured to activate at a first temperature; and a presele…

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What does patent US8932739B2 cover?
A battery pack, or battery pack module, is provided that is configured to respond to a short circuit of moderate current in a manner that minimizes the risk of an initial thermal runaway event propagating throughout the battery pack/battery pack module. In general, the battery pack/battery module allows pre-selection of which cell of the cells comprising the battery pack/battery pack module wil…
Who is the assignee on this patent?
Hermann Weston Arthur, Kohn Scott Ira, Beck David G, and 1 more
What technology area does this patent fall under?
Primary CPC classification H01M10/625. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 13 2015 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).