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A zinc/air battery pack

A technology for air battery packs and single cells, which is applied to hybrid batteries, circuits, electrical components, etc., can solve problems such as blockage of liquid injection connectors, and achieve the effects of convenient secondary replacement, easy implementation and simple process

Active Publication Date: 2019-07-12
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

It solves the problem that the zinc / air battery blocks the liquid injection connector due to the formation of ZnO deposits, so that the above-mentioned zinc / air battery can be used continuously for many times, and the cycle life is improved

Method used

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  • A zinc/air battery pack
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Examples

Experimental program
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Effect test

Embodiment 1

[0022] A zinc / air battery pack, including 24 planar single cells stacked in sequence, the single cell includes a single cell casing, an air cathode, a zinc anode, and an electrolyte chamber between the air cathode and the zinc anode, and the single cell The electrolyte chamber between the batteries is connected in series through a liquid injection connector. The diameter of the flow channel of the connector is 5mm. The zinc anode is a zinc paste electrode formed by mixing zinc powder and binder, and the zinc anode is covered with a diaphragm. The size of the diaphragm bag is 160mm*120mm*3mm. The outer surface of the contact area between the diaphragm bag and the electrolyte connection port is coated with water-blocking glue. The composition of the water-blocking glue is 60% acetone, 10% dichloroethane, The content of ABS is 30%. Take the above-mentioned substances in proportion, stir them until they are evenly mixed, and coat them on the outer surface of the contact area betwee...

Embodiment 2

[0025] The composition of the water-blocking glue in Example 1 is 50% toluene, 10% dichloromethane, and 40% polystyrene. Take the above-mentioned substances in proportion, stir until they are evenly mixed, and apply them on the diaphragm bag and contact with the electrolyte communication port. The outer surface of the area is solidified for 24 hours, and the coated area is figure 2 Each face of a triangular prism with a middle right-angled side length of 10mm.

Embodiment 3

[0027] In Example 1, the water-blocking glue is commercialized epoxy resin AB glue, and after mixing evenly, it is coated on the outer surface of the contact area between the diaphragm bag and the electrolyte communication port and solidified for 24 hours. The coating area is figure 2 Each face of a triangular prism with a middle right-angled side length of 10mm.

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Abstract

A zinc / air battery pack comprising N sections of planar cells stacked sequentially in layers, the cell comprising a cell casing, an air cathode, a zinc anode, and an electrolyte chamber between the air cathode and the zinc anode, N is an integer ≥ 2, and the electrolyte chambers between N cells are connected in series through a liquid injection connector, and each connector branch channel is provided with a connector flow that communicates with the electrolyte chamber of a single cell The mouth, the flow mouth of the connector protrudes into the electrolyte chamber from the bottom of the electrolyte chamber; the zinc anode is covered with a diaphragm bag or a diaphragm layer is provided on the side of the electrolyte chamber of the zinc anode. Compared with the prior art, the present invention facilitates the secondary replacement of battery anodes; the flow channel of the connector between the cells is not easily blocked, which does not affect the secondary use of the battery; the water-blocking glue coated on the diaphragm bag has no pollution to the electrolyte and does not The discharge performance of the battery pack is affected and the cycle life of the battery pack is long; the treatment method is simple in process, easy to implement, and extremely low in cost.

Description

technical field [0001] The invention relates to a zinc / air battery pack, in particular to a mechanically rechargeable zinc / air battery pack with a connector structure. Background technique [0002] The mechanically rechargeable zinc / air battery pack achieves secondary charging by replacing the zinc anode and electrolyte. The zinc anode is generally a zinc paste made of zinc powder and additives mixed and pressed in a certain proportion. The zinc paste is covered with a diaphragm bag , the zinc anode is put into the electrolyte chamber of the single cell, and then the electrolyte is filled and the battery enters the working state. Mechanically rechargeable zinc / air batteries usually employ multiple single cells connected in series. [0003] The Chinese patent with the patent number CN2764000Y provides a mechanical plug-in type zinc / air battery, and the cavities of the individual cells are independent of each other. This structure leads to the need to sequentially inject liqu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M12/06
CPCH01M12/065Y02E60/10
Inventor 孙公权高建新王二东
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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