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Cathode active segment for an electrochemical cell

A technology of cathode active and cathode active material, applied in the field of cathode segment, can solve the problems of reducing battery performance, increasing battery production time and total cost, increasing battery material cost, etc.

Inactive Publication Date: 2016-02-24
THE GILLETTE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive separator increases the internal resistance of the battery, which leads to a decrease in battery performance
Excess separator also increases the material cost of the battery
Furthermore, the separator insertion process generally increases the production time and overall cost of the battery

Method used

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  • Cathode active segment for an electrochemical cell
  • Cathode active segment for an electrochemical cell
  • Cathode active segment for an electrochemical cell

Examples

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Embodiment Construction

[0018] An electrochemical cell or battery can be a primary cell or a secondary cell. Primary batteries are meant to be discharged (eg, to exhaustion) only once and then discarded. Primary batteries are described, for example, in David Linden's Handbook of Batteries (McGraw-Hill, 4th edition, 2011). The secondary battery is intended to be recharged. Secondary batteries may be discharged and subsequently recharged many times, for example, more than fifty, one hundred, or more times. Secondary batteries are described, for example, in David Linden's Handbook of Batteries (McGraw-Hill, 4th edition, 2011). Thus, cells can include various electrochemical couple and electrolyte combinations. Although the description and examples provided herein relate generally to primary alkaline electrochemical cells or batteries, it should be understood that the present invention applies to primary and secondary batteries in aqueous or non-aqueous systems. Primary and secondary batteries with o...

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Abstract

The invention is directed towards a cathode active segment for an electrochemical cell. The cathode active segment includes at least one cathode active material, a cross-sectional width including a first curvilinear surface, a second curvilinear surface, a longitudinal length, and at least one cathode mating surface. The at least one cathode mating surface extends along the longitudinal length of the cathode active segment.

Description

technical field [0001] The present invention relates to cathodes of electrochemical cells, and more particularly to cathode segments. Background technique [0002] Electrochemical cells or batteries are commonly used as a source of electrical energy. Batteries contain a negative electrode, generally called the anode, and a positive electrode, generally called the cathode. The anode contains an active material that can be oxidized. The cathode contains active material that can be reduced. The anode active material is capable of reducing the cathode active material. A separator is provided between the anode and the cathode. These components are housed in a housing or housing, usually made of metal. [0003] When a battery is used as a source of electrical energy in a device, the anode and cathode are in electrical contact, allowing electrons to flow through the device and their respective oxidation and reduction reactions to provide electrical energy. The electrolyte in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M4/24H01M2/18H01M4/75H01M4/76H01M10/04H01M2/16H01M4/06H01M4/32H01M4/34H01M10/28H01M50/463
CPCH01M4/06H01M4/24H01M4/32H01M4/34H01M4/48H01M4/52H01M4/54H01M4/75H01M10/0422H01M4/765H01M10/28H01M4/50H01M2004/025Y02E60/10H01M50/182H01M50/461H01M50/463Y02P70/50H01M4/02H01M2220/30
Inventor W·F·莫里西
Owner THE GILLETTE CO