Lead acid battery electrode comprising a porous carbon material layer and a lead acid battery

US9166231B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9166231-B2
Application numberUS-200913120132-A
CountryUS
Kind codeB2
Filing dateSep 17, 2009
Priority dateSep 22, 2008
Publication dateOct 20, 2015
Grant dateOct 20, 2015

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Abstract

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Disclosed is an electrode for a lead storage battery that has good initial output characteristics and causes little or no reduction in output characteristics after charge-discharge cycle. The electrode comprises an electrode active material layer and a current collector. The electrode active material layer comprises a layer containing a lead-containing material as an electrode active material and a layer containing a porous carbonaceous material as an electrode active material. The electrode satisfies a requirement represented by the following equation: B/(A+B)×100=1.0 to 90.0% wherein A represents the weight of lead atoms contained in the electrode active material layer; and B represents the weight of the porous carbonaceous material contained in the electrode active material layer. The density of the layer containing the porous carbonaceous material is 0.40 to 0.80 g/cm 3 . Also disclosed is a lead storage battery using the electrode in at least one of a positive electrode and a negative electrode.

First claim

Opening claim text (preview).

The invention claimed is: 1. A lead acid battery electrode comprising an electrode active material layer including a layer including a lead containing material as an electrode active material and a layer including porous carbon material as an electrode active material, and a current collector; wherein when a weight of lead atoms contained in said electrode active material layer is A, and a weight of the porous carbon material contained in said electrode active material layer is B,…

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What does patent US9166231B2 cover?
Disclosed is an electrode for a lead storage battery that has good initial output characteristics and causes little or no reduction in output characteristics after charge-discharge cycle. The electrode comprises an electrode active material layer and a current collector. The electrode active material layer comprises a layer containing a lead-containing material as an electrode active material a…
Who is the assignee on this patent?
Hoshiba Koji, Zeon Corp
What technology area does this patent fall under?
Primary CPC classification H01M4/621. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Oct 20 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).