Battery

US2025112224A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2025112224-A1
Application numberUS-202418789507-A
CountryUS
Kind codeA1
Filing dateJul 30, 2024
Priority dateOct 2, 2008
Publication dateApr 3, 2025
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

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A battery includes a housing, and within the housing, an anode having an alkali metal as the active material, a cathode having a mass (m) of a cathode active material, for example, iron disulfide as the active material, a separator between the anode and the cathode, and an increased electrolyte volume (v).

First claim

Opening claim text (preview).

What is claimed is: 1 . A battery, comprising a housing, and within the housing: (a) an anode comprising an alkali metal; (b) a cathode comprising a mass (m) of a cathode active material selected from the group consisting of transition metal polysulfides having the formula M1 a M2 b S n , wherein M1 and M2 are transition metals, a+b is at least 1, and n is at least 2(a+b); and (c) a volume (v) of an electrolyte, wherein the electrolyte has an ether content of at least 95 vol % of the electrolyte; and (d) a separator having a porosity between about 37% and about 70% between the anode and the cathode, wherein the battery includes a total pore volume prior to discharge, a void volume that will be generated when the battery is discharged to 1.05 V once, and the volume (v) of the electrolyte is greater than the sum of the total pore volume and the void volume.

Assignees

Inventors

Classifications

  • with circuits adapted for supplying loads from the battery · CPC title

  • Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings · CPC title

  • Arrangements or processes for filling with liquid, e.g. electrolytes · CPC title

  • Energy storage using batteries · CPC title

  • Sulfides · CPC title

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Frequently asked questions

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What does patent US2025112224A1 cover?
A battery includes a housing, and within the housing, an anode having an alkali metal as the active material, a cathode having a mass (m) of a cathode active material, for example, iron disulfide as the active material, a separator between the anode and the cathode, and an increased electrolyte volume (v).
Who is the assignee on this patent?
Duracell Us Operations Inc
What technology area does this patent fall under?
Primary CPC classification H01M4/136. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Apr 03 2025 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).