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Aluminum air battery pile and preparation process thereof

An aluminum-air battery and preparation process technology, applied in hybrid batteries, circuits, fuel cell type half cells and primary cell type half cells, etc., can solve problems such as low cost and leakage, and achieve low cost, cost reduction, The effect of resolving leaks

Inactive Publication Date: 2015-10-07
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention relates to an aluminum-air battery stack and its preparation process. The advantages are: 1) the aluminum-air battery stack has the advantages of high specific energy and high specific power; 2) the gel polymer in the aluminum-air battery stack can mix the electrolyte solution It is firmly locked, and there will be no liquid seepage on the surface, which fundamentally solves the problem of battery electrolyte leakage; 3) The cost is low, and the battery structure is simplified. Part of the cost; 4) Safe and pollution-free, because there will be no electrolyte leakage, so there will be no potential safety hazards such as strong alkaline electrolyte burns on the skin

Method used

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  • Aluminum air battery pile and preparation process thereof
  • Aluminum air battery pile and preparation process thereof

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Embodiment 1

[0021] Embodiment 1: A solid aluminum-air battery stack composed of 30 single cells. The specific energy of the battery stack can reach 500Wh / kg, and the power can reach 300W / kg, which can normally drive a bicycle. Its preparation process is as follows:

[0022] 1) Weigh 8g of potassium hydroxide into a beaker, add 15ml of deionized water, and sonicate until the solution is clear; add 0.2g of zinc oxide to the electrolyte solution, and sonicate again until the solution is clear;

[0023] 2) Weigh 0.2g of N,N-methylenebisacrylamide, add 1.2g of acrylic acid, and sonicate until the solution is clear;

[0024] 3) mixing the electrolyte solution and the polymer solution prepared in step 1) and step 2), and filtering the precipitated substance to obtain a clear solution;

[0025] 4) inject the clear solution obtained in step 3) into the molding container;

[0026] 5) Weigh 0.5g of potassium persulfate, add 12ml of deionized water, and sonicate until the solution is clear;

[00...

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Abstract

The present invention discloses an aluminum air battery pile and a preparation process thereof in the technical field of energy conversion and new energy. The aluminum air cell pile comprises a plurality of monocells; a gel polymer is used as an electrolyte, and the electrolyte is applicable to all kinds of metal fuel cells, metal-ion batteries and other systems, and especially applicable to battery systems with serious leakage problems. The preparation process of the aluminum air battery pile is as follows: an electrolytic solution and a polymer solution are mixed and filtered, the obtained clear solution is injected into a molding container, an appropriate amount of a polymerization initiator solution is added to obtain the gel polymer electrolyte; positive and negative electrodes are fitted with the gel polymer electrolyte to prepare the aluminum air battery monocells, and finally the aluminum air battery monocells are assembled into the aluminum air battery pile according to a special structure. The aluminum air battery pile has the advantages of great potential for high specific energy and high specific power, fundamental solution of the battery electrolyte leakage problem, low cost, easy operation, simple structure, short production cycle, no pollution, use security of the process and the like.

Description

technical field [0001] The invention belongs to the field of energy conversion and new energy, and in particular relates to an aluminum-air battery stack and a preparation process thereof. Background technique [0002] The rapid development of electronic equipment puts forward higher performance requirements for batteries. The most important performance parameters of the battery are capacity density and energy density, which correspond to the amount of charge released by the battery material per unit mass during the discharge process (mAhg -1 ) and energy (mWhg -1 ). Considering the volume of the battery, the volumetric capacity density (mAhL -1 ) and volumetric energy density (mWhL -1 ). The ability of the battery to charge and discharge quickly is generally determined by the power density per unit reaction area (mWcm -2 )express. In addition, battery life, cost, safety and environmental friendliness are all important factors for evaluating battery performance. Curr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M12/06
CPCH01M12/065
Inventor 王诚邱平达张剑波郭建伟王建龙
Owner TSINGHUA UNIV
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