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Negative plate for lead acid battery

A lead-acid battery and negative plate technology, applied in lead-acid battery electrodes, lead-acid batteries, battery electrodes, etc., can solve the problems of short battery life, slow lead-acid battery charge and discharge time, and reduced energy storage.

Inactive Publication Date: 2021-12-03
冯岩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the lead-acid battery has been charged and discharged many times, it is inevitable that part of the lead powder will be adsorbed on the insulating separator between the positive and negative plates, so that its energy storage is reduced, the service life of the battery is short, and the charging and discharging of the lead-acid battery slow time

Method used

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Embodiment Construction

[0016] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0017] In the preferred embodiment of the present invention, those skilled in the art should note that the dilute sulfuric acid and lead powder involved in the present invention can be regarded as prior art.

[0018] preferred embodiment.

[0019] The invention discloses a negative plate for a lead-acid battery, comprising a negative grid, a three-dimensional graphene structure and a negative lead paste, the graphene structure is installed on the negativ...

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Abstract

The invention discloses a negative plate for a lead-acid battery. The negative plate comprises a negative plate grid, a three-dimensional graphene structure and a negative electrode lead plaster, the graphene structure is installed on the negative plate grid, the graphene structure is provided with a plurality of micro grids, and lead powder is arranged in the micro grids of the three-dimensional graphene structure. The negative plate for the lead-acid battery disclosed by the invention is provided with the three-dimensional graphene structure, and the graphene structure is provided with the plurality of micro-grids for placing the small parts of lead paste, so that lead is directly prevented from being in contact with a partition plate, sulfate is restrained in the micro-grids in the charging and discharging process, crystal particles are reduced, and the problem that the negative active material is softened and falls off is further solved.

Description

technical field [0001] The invention belongs to the technical field of lead-acid batteries, and in particular relates to a negative plate for lead-acid batteries. Background technique [0002] Lead-acid batteries have a history of 130 years. They have the advantages of reliable performance, mature production technology, and lower cost than nickel-metal hydride batteries and lithium batteries. The vast majority of current electric bicycles use sealed lead-acid batteries. The sealed lead-acid battery is to stack the positive and negative plates in the battery box, and the positive and negative plates are separated by insulating separators. When the electrolyte is charged into the battery box, the electrolyte and the positive and negative plates lead chemical reaction. When the battery is charged, the lead on the positive and negative plates that become lead sulfate releases the sulfuric acid component fixed in it into the electrolyte, and turns into lead and lead oxide respe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/62H01M4/14H01M4/57H01M10/06
CPCH01M4/14H01M4/628H01M4/625H01M4/57H01M10/06H01M2004/027H01M2004/021Y02E60/10
Inventor 冯岩
Owner 冯岩
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