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Tri-electrode zinc-air battery with flowing electrolyte

An electrolyte and battery technology, applied in battery electrodes, negative electrodes, fuel cells, etc.

Inactive Publication Date: 2016-10-12
陈忠伟 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] This specification provides a three-electrode rechargeable zinc-air battery that aims to solve the aforementioned problems that occur on the cathode and anode of conventional rechargeable zinc-air batteries

Method used

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  • Tri-electrode zinc-air battery with flowing electrolyte
  • Tri-electrode zinc-air battery with flowing electrolyte
  • Tri-electrode zinc-air battery with flowing electrolyte

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Embodiment Construction

[0025] In this description, reference is made to zinc-air batteries or zinc-oxygen batteries. These cells will be known to those skilled in the art and it should be understood that the terms "zinc-air" and "zinc-oxygen" may be used interchangeably with reference to the same cell.

[0026] The terms "comprise", "comprises", "comprised" or "comprising" may be used in this specification. As used herein (including the specification and / or claims), these terms are to be construed as referring to the presence of a particular state feature, integer, step or component, but not to the exclusion of one or more other features, integers, The presence of steps, components or groups thereof will be apparent to a person of ordinary skill in the relevant art.

[0027] The three-electrode (ie, three-electrode) single-flow zinc-air cells described herein include a housing containing at least one discharging cathode, at least one charging cathode, and at least one anode, and an electrolyte. Th...

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Abstract

A rechargeable tri-electrode single flow zinc air battery which is capable of providing theoretically unlimited cycle life is provided. The tri-electrode configuration consists of one anode and two cathodes, one for charging and another for discharging. The charge cathode may comprise a water-permeable metal mesh and / or metal foam, which avoids carbon corrosion. The discharge cathode is a catalytic oxygen reduction electrode. The anode comprises an inert, conductive electrode allowing for zinc deposition during battery charging, and zinc dissolving during battery discharging. The flowing electrolyte removes zinc ions from the anode preventing or minimizing the formation of zinc oxides during discharging, and clean the anode after each full discharge.

Description

[0001] Cross References to Related Applications [0002] This application claims priority under the Paris Convention to US Application No. 62 / 177,019, filed March 4, 2015, the entire contents of which are incorporated herein by reference. technical field [0003] This specification relates to the field of electrochemical energy conversion and storage devices and their applications. In particular, the present invention relates to improved rechargeable zinc-air (or zinc-oxygen) batteries comprising three electrodes and a flowing electrolyte. Background technique [0004] Rechargeable zinc-air batteries are a highly promising technology due to many advantages. For example, zinc-air batteries employ oxygen derived from atmospheric air, which is costless and virtually inexhaustible, eliminating the need to store a fuel source within the battery. Furthermore, the catalyst employed in the zinc-air battery electrochemically reduces oxygen and is not used in the actual current gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/08
CPCH01M12/08H01M4/8657H01M4/9041H01M8/083H01M8/186H01M8/225H01M12/02H01M12/065H01M2004/8684H01M2004/8689Y02E60/10Y02E60/50H01M4/38H01M2004/027
Inventor 陈忠伟刘昊
Owner 陈忠伟
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