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Method for improving utilization rate of metal fuel cell anode

A technology of anode and metal plate, which is applied in the field of metal surface treatment, can solve the problems such as the reduction of thin metal utilization rate, and achieve the effect of improving utilization rate, improving utilization rate and flexible method

Inactive Publication Date: 2019-06-18
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that the thin metal anode is corroded and fallen off, which leads to the decrease of the utilization rate, and effectively improves the utilization rate of the anode through the design and optimization of the current collecting net structure

Method used

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  • Method for improving utilization rate of metal fuel cell anode
  • Method for improving utilization rate of metal fuel cell anode

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Embodiment Construction

[0015] specific implementation plan

[0016] The schematic diagram of this embodiment is as follows figure 1 As shown, this scheme includes metal anodes and current collectors. The metal anode includes a tab for current collection and a metal anode body; the tab is a non-reactive area used as a current output conductor, and the metal anode body is a reaction area. The metal anode in the figure is a magnesium alloy AZ31B flat plate, its main body size is 200mm×100mm×0.4mm, and its tab size is 15mm×10mm.

[0017] The two surfaces of the metal plate are bonded horizontally and vertically with strip tapes to form a square grid pattern.

[0018] The current collecting net includes a main collecting net and a sub-collecting net; the tape width of the main collecting net is 5mm, and the tape width of the sub-collecting net is 2mm.

[0019] The material of the original film of the tape is a biaxially oriented polypropylene film with a thickness of 20m, a tensile strength of 150MPa,...

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Abstract

The invention is a method for improving utilization rate of metal anodes of metal-based batteries by constructing a metal current collecting net. The current collecting net of the invention is a metalportion which is not corroded after being protected by the mesh insulating tape. Since the tape is in a mesh structure, the protected metal anode is also in a mesh crosslinked structure. The currentcollecting net has a multi-stage structure that a tape of a certain width is used to be bonded at both sides of the metal anode plate into a staggered network to form sub current collecting nets, anda tape of a certain width is bonded to the edge around the metal anode into a frame to construct a main current collecting net. The sub current collecting nets are used to connect all the reaction zones of the metal anode to ensure that the active components of the metal anode can be fully utilized; and the main current collecting net connects the respective sub current collecting nets to ensure the smooth operation of the electrons in the current collecting channel. The method successfully constructs a metal anode current collecting net by utilizing the effective insulation and water blockingproperty of the tapes, and is simple in process, low in cost, effective and reliable, and very suitable for small-scale metal anode treatment.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a method for improving the utilization rate of a metal anode of a battery by constructing an anti-corrosion network structure on the surface of a metal anode by means of an adhesive tape. The method is suitable for improving the utilization rate of metal anodes of metal-based batteries under near-neutral conditions. Background technique [0002] When metal is used as the anode / negative electrode reactant of the battery, the electrode will cause the reactant to separate from the metal body due to the corrosion of the metal, resulting in a decrease in metal utilization. An effective current collection method is one of the key measures to improve the utilization rate of metal anodes. For example, the metal anode of the zinc / air battery uses a metal current collector to increase the full contact between the zinc powder and the current collector; the magne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/12H01M12/06
Inventor 王二东刘乾锋孙公权
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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