Battery pack and method for welding cells

US9065124B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9065124-B2
Application numberUS-93759907-A
CountryUS
Kind codeB2
Filing dateNov 9, 2007
Priority dateNov 10, 2006
Publication dateJun 23, 2015
Grant dateJun 23, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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A battery pack with a reduced resistance connection arrangement in which battery cells are arranged in rows in an insulating case and an electrode of each battery cell is coupled to an electrode of another battery cell through a connecting metallic plate. The connecting metallic plate is made of copper and is disposed on a positive electrode of one battery cell and a negative electrode of another battery cell to form a lap joint. Welds are formed in predetermined positions on the connecting metallic plate above the positive and negative electrodes by arc spot welding. The electrodes are formed of nickel-coated steel. The depth h of weld penetration in the weld is greater than the thickness T 1 of the connecting metallic plate and smaller than the thickness T 1 plus the thickness T 2 of one of the electrodes, that is, T 1 <h≦(T 1 +T 2 ×4/5).

First claim

Opening claim text (preview).

The invention claimed is: 1. A battery pack comprising a plurality of battery cells and a connecting metallic plate connecting an electrode of one of the battery cells to an electrode of another one of the battery cells, wherein the connecting metallic plate is disposed on a positive electrode of the one of the battery cells and a negative electrode of said another one of the battery cells, and the connecting metallic plate and each of the positive and negative electrodes are fixed…

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What does patent US9065124B2 cover?
A battery pack with a reduced resistance connection arrangement in which battery cells are arranged in rows in an insulating case and an electrode of each battery cell is coupled to an electrode of another battery cell through a connecting metallic plate. The connecting metallic plate is made of copper and is disposed on a positive electrode of one battery cell and a negative electrode of anoth…
Who is the assignee on this patent?
Imanaga Shoji, Aota Kinya, Tsurumi Yoshihisa, and 2 more
What technology area does this patent fall under?
Primary CPC classification H01M50/516. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 23 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).