Air electrode of zinc-air flow battery and battery system comprising air electrode

A liquid flow battery and battery system technology, which is applied in the direction of fuel cell half-cells and secondary battery-type half-cells, battery electrodes, hybrid batteries, etc., can solve problems such as leakage of catalysts, loss, etc., and increase the reaction rate , prevent leakage, increase the effect of contact area

Inactive Publication Date: 2019-02-15
SUZHOU WATFONE BATTERY TECH CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The main technical problem to be solved by the present invention is to provide an air electrode of a zinc-air liquid flow battery and a battery system composed of the same. The air electrode solves the problems of liquid leakage and catalyst loss through a multi-layer structure, and air drying and air medium dust, CO 2 effects on the electrolyte

Method used

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  • Air electrode of zinc-air flow battery and battery system comprising air electrode
  • Air electrode of zinc-air flow battery and battery system comprising air electrode
  • Air electrode of zinc-air flow battery and battery system comprising air electrode

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the embodiments, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so that the protection scope of the present invention can be defined more clearly.

[0031] Referring to the accompanying drawings, it is an air electrode of a zinc-air liquid flow battery. The air electrode structure includes a four-layer structure and a conductive terminal; the four-layer structure is from the outside to the inside: The transparent membrane layer A1, the second layer is the catalyst layer A2, the third layer is the current collecting layer A3, and the fourth layer is the alkali-resistant isolation layer A4; the conductive terminal A5 is connected to the third current collecting layer A3.

[0032] The first layer of alkali-resistant semi-permeable membrane layer A1 can be one of expanded polytetrafluoroethylene (PTFE) membrane, PVDF hydrophobic mem...

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Abstract

The invention provides an air electrode of a zinc-air flow battery and a battery system comprising the air electrode. The air electrode is of a four-layer structure, free inflow and outflow of ions and air can be guaranteed, normal conduction of battery reaction is guaranteed, electrolyte leakage can be prevented, and service life of a battery is prolonged. According to the battery system based onthe air electrode, a battery pack system, an air system and a flow system are combined, and the efficient and durable zinc-air flow battery system is prepared and has great commercial popularizing value.

Description

technical field [0001] The invention relates to the field of metal-air batteries, and relates to an air electrode of a zinc-air liquid flow battery and a battery system composed of the same. Background technique [0002] In a metal-air battery, an oxidation-reduction reaction of oxygen proceeds in the air electrode, and an oxidation-reduction reaction of the metal contained in the negative electrode proceeds in the negative electrode, thereby enabling charging and discharging. Using air as the positive electrode active material has the advantages of high density, miniaturization and light weight. Therefore, as metal-air batteries, lithium-air batteries, magnesium-air batteries, zinc-air batteries, aluminum-air batteries, and the like are currently available. [0003] 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 inexhaustib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/08H01M12/02H01M4/86H01M4/90H01M4/42
CPCH01M4/42H01M4/8657H01M4/9041H01M12/02H01M12/08H01M12/085Y02E60/10
Inventor 陈忠伟
Owner SUZHOU WATFONE BATTERY TECH CO LTD
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