Supercharge Your Innovation With Domain-Expert AI Agents!

A premixed composite negative electrode additive for lead-acid batteries

A lead-acid battery and additive technology, applied in the direction of lead-acid batteries, battery electrodes, circuits, etc., can solve the problems of short service life of high-power discharge, reduced lead reactivity, and reduced charging efficiency, so as to improve cycle life and improve Various performance and stability improvement effects

Inactive Publication Date: 2016-08-24
浙江超越动力科技股份有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of low specific power and short service life of high-power discharge restrict the development of lead-acid batteries.
The main cause of the above problems is caused by the negative electrode. Due to high-density current discharge, a large number of lead ions generated by the negative electrode enter the electrolyte. The corresponding situation is that the diffusion of sulfate ions in the electrolyte is limited, resulting in excessive lead ions Saturated, thus forming a dense layer of lead sulfate precipitation on the surface of the negative electrode, resulting in passivation of the negative electrode surface
Due to the poor conductivity and low solubility of lead sulfate, the reactivity of lead inside the negative electrode will decrease, which will increase the reaction overpotential, resulting in serious hydrogen evolution during charging, and the charging efficiency will decrease, forming a vicious circle.
If you continue to charge and discharge at high power, the above situation will be further deteriorated, and the precipitated particles of lead sulfate will increase. Such an increase process is irreversible, and eventually the negative electrode will lose its reactivity and the battery will fail.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Composite additives for lead-acid battery negative electrodes, each component is calculated by mass percentage, chitosan 25%, sodium alginate 25%, rubber extract 8%, anisaldehyde 6%, sodium lignin sulfonate 11%, barium sulfate 25% %.

[0017] The preparation method of the above-mentioned lead-acid storage battery premixed negative electrode additive is as follows: all the components are mixed in proportion and fully stirred in a dry state.

[0018] The positive plate is a positive plate for a conventional 6-DZM-12Ah battery, and the negative plate is based on the conventional lead paste formula. When mixing the paste, add the above-mentioned lead-acid battery negative electrode composite additive with a mass fraction of 0.2% to adjust the deionization. The proportion of water and sulfuric acid is mixed with the paste, the plate is manually coated, and the negative plate is obtained after curing and drying.

[0019] The negative plate prepared by the above method and th...

Embodiment 2

[0022] Premixed negative electrode additives for lead-acid batteries, each component is calculated by mass percentage, chitosan 25%, sodium alginate 20%, rubber extract 10%, anisaldehyde 15%, sodium lignosulfonate 10%, barium sulfate 20%.

[0023] The positive plate is a positive plate for a conventional 6-DZM-12Ah battery, and the negative plate is based on the conventional lead paste formula. When mixing the paste, add the above-mentioned lead-acid battery negative electrode composite additive with a mass fraction of 0.2% to adjust the deionization. The proportion of water and sulfuric acid is mixed with the paste, the plate is manually coated, and the negative plate is obtained after curing and drying.

[0024] The negative plate prepared by the above method and the current conventional 6-DZM-12Ah battery positive plate are assembled, filled with acid and chemically formed according to the factory 6-DZM-12Ah assembly process. And the normal 6-DZM-12Ah battery of the same m...

Embodiment 3

[0027] Premixed negative electrode additives for lead-acid batteries, each component is calculated by mass percentage, chitosan 30%, sodium alginate 20%, rubber extract 5%, anisaldehyde 20%, sodium lignosulfonate 15%, barium sulfate 10%.

[0028] The positive plate is a conventional 6-DZM-12Ah battery positive plate, and the negative plate is based on the conventional lead paste formula, and the above-mentioned lead-acid battery negative electrode compound additive is added to the lead powder when the paste is mixed, and the ratio of deionized water and sulfuric acid is adjusted. Carry out paste mixing, hand-coat the board, and obtain the negative plate after curing and drying.

[0029] The positive plate is a positive plate for a conventional 6-DZM-12Ah battery, and the negative plate is based on the conventional lead paste formula. When mixing the paste, add the above-mentioned lead-acid battery negative electrode composite additive with a mass fraction of 0.2% to adjust the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a premixing composite cathode additive for a lead-acid storage battery. The premixing composite cathode additive is characterized by comprising the following components by weight percent: 25%-30% of chitosan, 20%-25% of sodium alginate, 5%-10% of valonea extracts, 15%-20% of anisaldehyde, 10%-15% of sodium lignosulphonate and 10%-25% of barium sulfate. The premixing composite cathode additive disclosed by the invention has the advantages of simplicity in preparation and convenience in use and effective enhancement of multiple properties of the lead-acid storage battery.

Description

technical field [0001] The invention relates to a lead-acid battery premixed composite negative electrode additive and a preparation method thereof, belonging to the field of lead-acid battery production. Background technique [0002] Due to its low price, readily available raw materials, reliable use, and high-current discharge, lead-acid batteries have always been the secondary batteries with the largest output and the most widely used in chemical power sources. The emergence of gel batteries has provided a broader space for the development of lead-acid batteries. The disadvantages of low specific power and short service life of high-power discharge restrict the development of lead-acid batteries. The main cause of the above problems is caused by the negative electrode. Due to high-density current discharge, a large number of lead ions generated by the negative electrode enter the electrolyte. The corresponding situation is that the diffusion of sulfate ions in the electr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/62
CPCH01M4/62H01M10/06Y02E60/10
Inventor 周志勇
Owner 浙江超越动力科技股份有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com