Metal air cell system

A metal-air battery and metal technology, applied in fuel cells, battery electrodes, secondary batteries, etc., can solve the problems of increasing internal resistance and improving internal resistance

Inactive Publication Date: 2005-07-27
EVIONYX INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive gaps reduce the chance of cathode damage during refueling, but increase internal resistance
Therefore, conventionally setting a sufficient gap between the anode and the cathode will lead to an increase in the internal resistance between them

Method used

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Embodiment Construction

[0015] A metal-air battery includes an anode, and the cathode has an easily removable anode structure. The characteristics of the anode structure, cathode structure, gel composition, and other aspects of the metal-air battery system will be described herein.

[0016] Referring now to the drawings, exemplary embodiments of the present invention will be described. For clarity of illustration, similar structures shown in the various figures will be designated with similar reference numerals, as will similar structures in alternative embodiments.

[0017] now refer to figure 1 , which depicts a metal-air electrochemical cell 10 having a generally prismatic structure. Battery 10 includes an anode structure 12 within a generally U-shaped cathode structure 14 . Anode 12 and cathode 14 are maintained in electrical isolation and in ionic communication via a separator, as will be further described herein.

[0018] Oxygen from air or other sources is used as the air cathode of the me...

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Abstract

A Metal air cell and cell system is provided. In general, the cell includes a cathode structure comprising opposing cathode portions and a space configured for receiving an anode structure. The anode structure includes a pair of rigid structures having plural apertures for allowing ionic communication and anode material between the rigid structures. A separator is disposed between the anode and the cathode to electrically isolate the anode and the cathode. The rigid structures of the anode structure facilitate removal of the anode structure from the cathode structure. In certain embodiments, anode structures are formed with bimodal gelling agents to promote an even distribution of anode material and electrolyte gel.

Description

technical field [0001] This application claims priority to US Provisional Patent Application Serial No. 60 / 312,516, filed August 15, 2001, entitled "Metal Air Cell System." The present invention relates to metal-air batteries, and more particularly to a metal-air battery system having a novel structure that promotes efficient battery discharge and simplified oxidant management. Background technique [0002] An electrochemical power source is a device in which electrical energy can be generated using electrochemical reactions. These devices include metal-air electrochemical cells, such as zinc-air and aluminum-air cells. Some metal electrochemical cells employ an anode composed of metal particles that are fed into the cell and consumed during discharge. Such electrochemical cells are often referred to as refuelable batteries. A zinc-air rechargeable fuel cell includes an anode, a cathode, and an electrolyte. The anode usually consists of zinc particles soaked in an electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/06H01MH01M4/00H01M4/02H01M4/38H01M4/42H01M4/44H01M4/46H01M4/48H01M8/00H01M10/36H01M10/42H01M12/02H01M12/08H01M50/609
CPCH01M12/02H01M12/08H01M2004/021H01M4/38H01M4/46H01M2300/0085H01M4/42H01M4/466H01M2/36H01M4/02H01M12/06Y02E60/128H01M4/48H01M4/44Y02E60/10H01M50/609
Inventor 蔡则彬乔治·佐尼-吉·曾迈克尔·格洛弗李林峰威廉·莫里斯
Owner EVIONYX INC
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