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Metal air battery with air pressure adjustment system

A technology of air pressure regulation system and metal-air battery, which is applied in the direction of fuel cell type half-cell and primary battery type half-cell, etc. control performance, extended battery life, good structural sealing performance

Active Publication Date: 2018-03-06
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This problem greatly limits the modular research and even industrial application of lithium-air batteries.

Method used

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  • Metal air battery with air pressure adjustment system
  • Metal air battery with air pressure adjustment system
  • Metal air battery with air pressure adjustment system

Examples

Experimental program
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Effect test

Embodiment 1）

[0069] In this embodiment, the materials of the battery case 1 and the battery cover 14 are aluminum alloy, the surface is insulated, and the shape is rectangular with a size of 100×30 mm. 2 , the height of the battery case 1 is 160 mm. The pressure limit of safety valve 7 is set to 0.8 MPa.

[0070] The assembly process of the lithium-air battery is as follows: the battery cell 2 consisting of a lithium sheet (ie, the negative electrode), a separator, and an oxygen positive electrode is placed in the battery case 1 in an argon glove box. After connecting the positive and negative poles of the battery cell 2 to the positive and negative poles of the terminals 5 and 10 through the lead wires 3 and 4, vacuumize through the gas outlet valve 9 to discharge the remaining argon in the battery case 1, and then pass through the liquid injection hole 13 Introduce the electrolyte, and then pass high-purity oxygen through the intake valve 6. Then, the test circuit can be connected to t...

Embodiment 2

[0073] Another embodiment 2 according to the present invention will now be described. Please note that the relevant description of the same structure as the embodiment 1 in this embodiment 2 will be omitted.

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Abstract

The invention relates to a metal air battery with an air pressure adjustment system. The metal air battery comprises an insulation battery shell, a battery cover plate and a bonding post, wherein a battery cell, a reaction gas and an electrolyte material are accommodated in the battery shell, the battery cover plate is provided with the air pressure adjustment system and can be hermetically connected to the battery shell, the bonding post is arranged on the battery cover plate and is used for connecting a positive electrode and a negative electrode of the battery cell, the air adjustment system comprises a pressure sensor and an gas inlet / outlet unit, the pressure sensor is used for detecting pressure of the reaction gas in the battery shell, the gas inlet / outlet unit is used for controlling the reaction gas to enter in and out of the battery shell, the air pressure adjustment system forms a structure which is used for controlling the gas inlet / outlet unit according to a pressure valuedetermined by the capacity of the battery cell so as to control in / out of the reaction gas. By the metal air battery with the air pressure adjustment system, disclosed according to the invention, adjustment, monitoring and overpressure safety protection of the gas pressure can be achieved, and the modular research and industrial application of the metal air battery can be expanded.

Description

technical field [0001] The invention relates to the technical field of chemical power sources, in particular to a metal-air battery with an air pressure regulating system. Background technique [0002] With the development of society, energy issues are becoming more and more prominent. At present, people begin to attach importance to the use of renewable energy such as solar energy, wind energy, and tidal energy. However, renewable energy is more or less limited by natural conditions. Therefore, chemical power sources that can store and transmit energy have received unprecedented attention in today's society. [0003] A chemical power source is a device that can directly convert chemical energy into electrical energy. It consumes a certain chemical substance through a chemical reaction and outputs electrical energy. It is widely used in national economy, science and technology, military affairs and daily life. Chemical batteries are widely used and have various varieties. A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/06
CPCH01M12/06
Inventor 郭向欣范武刚赵宁
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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