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Lead-air battery

An air battery and air electrode technology, which is applied in the direction of fuel cell half-cells and primary battery-type half-cells, can solve the problems of low specific power lead-acid batteries, environmental and human health hazards, and affecting electrode stability. Achieve the effects of increasing specific energy and specific power, reducing positive electrode overpotential, and reducing mass and volume

Inactive Publication Date: 2017-04-26
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, lead-acid batteries currently have some shortcomings, as follows: the mass specific energy of lead-acid batteries is low, which makes lead-acid batteries relatively bulky; the low specific power makes lead-acid batteries unable to meet the occasions that require high power output; The lead dioxide electrode will produce oxygen when charging, and the lead oxide on the plate is easy to fall off, which affects the stability of the electrode; lead is a toxic heavy metal, and the current lead-acid battery uses a high amount of lead. Hazardous to the environment and human health

Method used

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0020] refer to figure 1 , figure 2 , a lead-air battery comprising an insulating casing 1, an electrolyte 4, a lead electrode 3, an air electrode 5, a nickel mesh 6 and an insulating compact 2, wherein,

[0021] The insulating shell 1 is in the shape of a cuboid as a whole, with an opening at one end;

[0022] The electrolyte 4 is arranged in the insulating shell 1, preferably, the electrol...

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Abstract

The invention belongs to the field of batteries, and discloses a lead-air battery. The lead-air battery comprises an insulating housing, an electrolyte, a lead electrode, an air electrode, a nickel screen and an insulating press block, wherein the lead electrode is arranged in the insulating housing; the air electrode comprises a perfluorosulfonate membrane, a catalyst layer and carbon paper; the perfluorosulfonate membrane is in contact with the electrolyte; the insulating press block presses the nickel screen and the air electrode on a sealing pad; the nickel screen is located between the carbon paper and the insulating press block; and the insulating press block is fixedly connected to the insulating housing. According to the lead-air battery, the quality and the volume of a lead-acid battery are reduced, the positive electrode overpotential is reduced, the current density is improved, the specific energy and the specific power of the lead-acid battery are improved, the stability of the lead-acid battery is strengthened, the amount of lead is reduced and the environmental influence of the lead-acid battery is reduced.

Description

technical field [0001] The invention belongs to the field of batteries, and more specifically relates to a lead-air battery. Background technique [0002] Currently known lead-acid batteries use a lead electrode as the negative pole of the battery, dilute sulfuric acid as the electrolyte, and a lead dioxide electrode as the positive pole of the battery. The main raw material for the production of lead-acid batteries is lead. Because lead is cheap and easy to obtain, and the recycling technology of waste lead-acid batteries is mature, lead-acid batteries are currently the most cost-effective energy storage batteries on the market. They are mainly used in electric bicycle batteries, automobiles Starting battery, backup communication battery, etc. However, lead-acid batteries currently have some shortcomings, as follows: the mass specific energy of lead-acid batteries is low, which makes lead-acid batteries relatively bulky; the low specific power makes lead-acid batteries una...

Claims

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Application Information

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IPC IPC(8): H01M12/06
CPCH01M12/06
Inventor 吴旭李金东陈渊
Owner HUAZHONG UNIV OF SCI & TECH
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