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Improvement method of metal air battery

A metal-air battery and metal electrode technology, which is applied to fuel cell-type half-cells and primary cell-type half-cells, etc., can solve the problems of metal-air battery side reactions, low activation rate, slow movement of oxygen, etc., and shorten the activation time. Time, large discharge current, and the effect of suppressing the occurrence of side reactions

Inactive Publication Date: 2020-02-18
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low activation rate, long activation time, slow oxygen movement and serious internal side reactions of some metal-air batteries in existing metal-air batteries, the present invention provides an improved method for metal-air batteries

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Apply a boosting magnetic field to ten commercially available Power One P675 zinc-air batteries, and evenly stick six rubber magnetic products on the bottom edge. The six rubber magnetic products form a complex boosting magnetic field and the direction of the magnetic field points directly to the metal electrode. The strength is 0.8-1.0T, and the angle between the promoting magnetic field and the metal electrode reaction surface formed by it is α=90° (considering the divergence of the magnetic field, 0≤α≤180°), for the Power One P675 zinc-air battery with the promoting magnetic field applied Carry out performance testing, specific testing includes:

[0038] 1) Activation rate detection, place the battery under test under the condition of ambient temperature 20±1℃, relative humidity 55±5%, connect a voltmeter, and measure the time required for it to return to the standard voltage of 5V;

[0039] 2) Continuous working time detection after activation, build Power One P675 ...

Embodiment 2

[0044] The specific steps are the same as in Example 1, except that a DC electromagnet is set at the center of the bottom of ten commercially available Power One P675 zinc-air batteries, and the source magnetic field acts on the promoting magnetic field on the metal electrodes of the Power One P675 zinc-air batteries The magnetic field strength is 1.6-1.8T, and the angle α between the promoting magnetic field and the metal electrode reaction surface formed by it is 90° (82-98° considering the divergence of the magnetic field). The battery was tested in the same way as in Example 1.

[0045] After testing:

[0046] The average activation time of ten Power One P675 zinc-air batteries in this example is 151.7s;

[0047] The average continuous working time of ten Power One P675 zinc-air batteries in this example is 39.8d.

Embodiment 3

[0049] The specific steps are the same as in Example 1, except that a DC electromagnet is set at the center of the bottom of ten commercially available Power One P675 zinc-air batteries, and a rubber magnet is coated on the outside of the DC electromagnet to match the magnetic field strength of the DC electromagnet. It is strengthened to form a composite source magnetic field. The magnetic field strength of the promoting magnetic field that the source magnetic field acts on the metal electrode of the Power One P675 zinc-air battery is 2.6-2.8T, and the angle between the formed promoting magnetic field and the reaction surface of the metal electrode is α=90 ° (84° to 96° considering the divergence of the magnetic field), the same detection as in Example 1 was carried out on the Power One P675 zinc-air battery to which the promoting magnetic field was applied.

[0050] After testing:

[0051] The average activation time of ten Power One P675 zinc-air batteries in this example is...

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Abstract

The invention relates to the field of metal air batteries, in particular to an improvement method of a metal air battery. The method comprises the following steps: applying a promoting magnetic fieldto the metal air battery, wherein the magnetic field direction of the promoting magnetic field points to the metal electrode of the metal air battery, and separating nitrogen and oxygen in the air under the action of the promoting magnetic field and guiding the oxygen to move to the metal electrode. The promoting magnetic field in the method can realize the separation of nitrogen and oxygen to a certain extent, can improve the movement rate of the oxygen to improve the reaction rate of the metal air battery and generate higher discharge current and can shorten the required activation time andcan effectively inhibit the occurrence of side reactions of some metal air batteries.

Description

technical field [0001] The invention relates to the field of metal-air batteries, in particular to an improved method for metal-air batteries. Background technique [0002] Batteries are one of the most common and used tools in daily life. They are classified into mercury batteries, lead-acid batteries, zinc-manganese batteries, lithium batteries, etc. according to their composition, and can be divided into Primary battery / primary battery, secondary battery / rechargeable battery, etc. For electrical equipment such as new energy electric vehicles, TV remote controls, mobile phones, electronic watches, wireless keyboards, wireless mice, laptops, and electric toothbrushes, etc., they usually select appropriate types of batteries according to their needs, such as new energy electric vehicles, Mobile phones and the like mostly use secondary batteries, while some electronic watches use secondary batteries and some use primary batteries, and TV remote controls mostly use primary ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/06
CPCH01M12/06
Inventor 唐谊平侯广亚
Owner ZHEJIANG UNIV OF TECH
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