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A rechargeable metal-air battery anode substrate

A metal-air battery and anode matrix technology, which is applied to fuel cell type half cells and primary cell type half cells, etc., can solve problems such as short circuits, and achieve the effect of improving service life and stability

Active Publication Date: 2020-07-10
氢极新(上海)新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, metal-air batteries will generate dendrites during use and cause a risk of short circuit

Method used

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  • A rechargeable metal-air battery anode substrate
  • A rechargeable metal-air battery anode substrate
  • A rechargeable metal-air battery anode substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This embodiment provides a metal-air battery anode substrate that can be charged and discharged, and it includes foamed nickel (the conventional physical parameter of foamed nickel is surface density (250~450) ± 30g / m2) with a thickness of 2mm. 2 , longitudinal tensile strength ≥ 40N / 20mm, transverse tensile strength ≥ 30N / 20mm, porosity about 90%) and a non-conductive layer formed on the surface of the foam layer; the non-conductive layer is titanium dioxide deposited on the surface of the foam layer, specifically The preparation method is as follows: immerse the bottom surface of 200g nickel foam in isopropanol, add 30ml of titanium n-butoxide to it through a syringe under ultrasonic conditions (bolus injection for 5 minutes), and heat to 60°C; take it out with isopropanol and water alternately After washing 3 times, it can be dried in an oven.

Embodiment 2

[0023] This embodiment provides a rechargeable metal-air battery anode substrate, its structure and preparation method are basically the same as those in Embodiment 1, except that the porosity of the foam layer is 70%.

Embodiment 3

[0025] This embodiment provides a rechargeable metal-air battery anode substrate, its structure and preparation method are basically the same as those in Embodiment 1, except that the porosity of the foam layer is 98%.

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Abstract

The invention relates to a rechargeable metal-air battery anode matrix, which comprises at least one layer of foam layer; the thickness of the foam layer is 0.1-10mm, its porosity is 70-98%, and its material is Ni, Cu, NiCrFe, ZnCu, NiCu, NiCrW, NiFe or Ti; it also includes a non-conductive layer formed on the surface of the foam layer, and the non-conductive layer is a metal oxide layer or a porous polymer film layer. By forming a non-conductive layer on the foam layer, when it is assembled with a cathode and an electrolyte to form a metal-air battery, dendrites can be avoided in it, thereby effectively improving its service life and stability.

Description

technical field [0001] The invention belongs to the field of metal-air batteries, and relates to an anode substrate, in particular to a rechargeable metal-air battery anode substrate. Background technique [0002] A metal-air battery is a special fuel cell that uses metal as fuel to generate electricity through oxidation-reduction reactions with oxygen in the air. Metal-air batteries use active metals as anodes, which have many advantages such as safety, environmental protection, and high energy density. It has good development and application prospects, and is even expected to replace lithium-ion power batteries, the main power battery type of current new energy vehicles. There are abundant raw materials to make metal-air batteries. Metal-air batteries that have made research progress mainly include aluminum-air batteries, magnesium-air batteries, zinc-air batteries, and lithium-air batteries. Some of these types of metal-air batteries are ready for mass production, some...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M12/06
CPCH01M12/06Y02E60/10
Inventor 田丙伦
Owner 氢极新(上海)新能源科技有限公司