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Anti-self-corrosion metal-air battery as well as preparation method and application thereof

A metal-air battery and air battery technology, which is applied to fuel cells, fuel cell-type half-cells, primary cell-type half-cells, fuel cell additives, etc. Problems such as worsening properties and increasing difficulty in research on multi-component alloys

Active Publication Date: 2021-03-23
易航时代(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the difficulty of multi-element alloy research has increased significantly, and it is difficult to make breakthroughs; research on electrolyte solutions, adding corrosion inhibitors to the electrolyte solution to prevent self-corrosion of the anode, but the performance of the battery is greatly affected, such as in ionic electrolytes and Under the environment of gel electrolyte, the conductivity of aluminum-air batteries becomes poor, and the performance is greatly reduced
[0004] In summary, due to the self-corrosion of the metal anode during the standby period of the battery, there is a problem that the energy density of the metal-air battery is much lower than its theoretical energy density.

Method used

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  • Anti-self-corrosion metal-air battery as well as preparation method and application thereof
  • Anti-self-corrosion metal-air battery as well as preparation method and application thereof
  • Anti-self-corrosion metal-air battery as well as preparation method and application thereof

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preparation example Construction

[0039] The present invention also provides a method for preparing the anti-self-corrosion metal-air battery described in the above technical solution, comprising the following steps:

[0040] Use 3D printing to print the main body model of the battery to obtain the battery frame structure;

[0041] In the battery frame structure, after connecting the non-conductive oil storage tank, oil micropump, electrolyte storage tank, electrolyte micropump, air cathode, metal anode and diaphragm, they are sealed with alkali-resistant materials to obtain the anti-self-corrosion Metal Air Batteries.

[0042] In the present invention, the Solidwords modeling tool is preferably used for modeling in the 3D printing step.

[0043] In the present invention, the model built by the Solidwords modeling tool is preferably exported to an STL format file, and the STL format file is a file recognizable by a 3D printer to print the battery frame structure.

[0044] In the present invention, the metal ...

Embodiment 1

[0052] Anti-self-corrosion aluminum-air battery comprising non-conductive oil storage tank, oil micropump, electrolyte storage tank, electrolyte micropump, air cathode, aluminum anode and separator between said air cathode and metal anode, the There is an anode gap between the diaphragm and the metal anode, there is a cathode gap between the diaphragm and the air cathode, the non-conductive oil storage tank, the oil micropump and the anode gap are connected in sequence, and the electrolyte storage tank and the electrolyte micropump After connection, connect with the anode space and the cathode space respectively, the aluminum alloy anode is Al0.6Mg0.05Ga0.1In, the material of the diaphragm is polytetrafluoroethylene (PTFE), the pore size is 1 μm, and the non-conductive oil storage tank is Italian brand Solvay Fomblin produces YLVAC06 / 6 perfluoropolyether oil with the smallest viscosity and lightest weight. There is a check valve between the non-conductive oil storage tank and t...

Embodiment 2

[0071] Anti-self-corrosion magnesium-air battery, comprising a non-conductive oil storage tank, an oil micropump, an electrolyte storage tank, an electrolyte micropump, an air cathode, a magnesium anode, and a diaphragm between the air cathode and magnesium anode, the There is an anode gap between the diaphragm and the metal anode, there is a cathode gap between the diaphragm and the air cathode, the non-conductive oil storage tank, the oil micropump and the anode gap are connected in sequence, and the electrolyte storage tank and the electrolyte micropump After connecting, connect with the anode space and cathode space respectively, the metal anode is magnesium alloy anode Mg9Al1.5Sn, the material of the diaphragm is polytetrafluoroethylene (PTFE), the pore size is 1 μm, and the non-conductive oil storage tank is Italian brand Solvay Fomblin produces YLVAC06 / 6 perfluoropolyether oil with the smallest viscosity and lightest weight. There is a check valve between the non-conduct...

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Abstract

The invention provides an anti-self-corrosion metal-air battery as well as a preparation method and application thereof, and belongs to the field of air batteries. According to the self-corrosion-resistant metal-air battery provided by the invention, a metal-air battery structure is reconstructed; and the metal-air battery which can be filled with oil when the metal-air battery is in a standby state and filled with electrolyte when the metal-air battery works so as to realize oil-water separation is designed. During the standby period of the metal-air battery, the metal-air battery system is filled with the oil to replace an electrolyte solution, so that the self-corrosion of a metal anode during the standby period is greatly reduced. Data of the embodiment show that the open-circuit voltage of the anti-self-corrosion metal-air battery provided by the invention is 1.8-2.0 V, and the working voltage of the anti-self-corrosion metal-air battery is 1.3-1.7 V. Compared with the performanceof conventional anti-self-corrosion metal-air battery, the specific capacity and the specific energy of the anti-self-corrosion metal-air battery are improved by 2-3 times, and the monthly self-discharge rate of the anode of the anti-self-corrosion metal-air battery is 0.02-0.04% / month.

Description

technical field [0001] The invention relates to the technical field of air batteries, in particular to an anti-self-corrosion metal-air battery and its preparation method and application. Background technique [0002] Metal air battery, also known as metal fuel cell in the industry, is a power generation device that directly converts the chemical energy of metal into electrical energy, and the generated electrical energy can be directly used by the power supply. Metal-air battery is a well-appraised energy storage device. It consumes electrical energy during the refining process of metals. In this process, the electrical energy is converted into chemical energy of the metal and stored. When needed, the chemical energy stored in the metal is stored in the metal. The metal-air battery is converted into electrical energy for direct use by humans. Metal-air batteries are one of the ideal solutions for high-performance green power sources required by the future society. [0003...

Claims

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Application Information

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IPC IPC(8): H01M8/04H01M12/06H01M8/04119H01M8/04082
CPCH01M12/06H01M8/04H01M8/04119H01M8/04201Y02E60/50
Inventor 卢惠民卢荣冠
Owner 易航时代(北京)科技有限公司
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