Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Storage battery anode lead plaster capable of enhancing SAE standard high temperature service life and preparation method

A positive lead paste, battery technology, applied in lead-acid battery electrodes, battery electrodes, circuits, etc., can solve the problems of reduced electrical conductivity, reduced energy, agglomeration of positive active materials, etc., to extend high temperature cycle life, long high temperature life , the effect of improving conductivity and porosity

Inactive Publication Date: 2010-05-12
中国船舶重工集团动力股份有限公司
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under high temperature conditions, the positive active material is in a high-energy state, and the tendency of the active material to shrink in size to reduce energy is significantly increased. Sulfation, when severe, the overall structure of the plate is destroyed
After hardening, the porosity of the active material decreases, blocking the channel of the acid, and the conductivity decreases, resulting in a decrease in the discharge performance of the battery and the end of its life.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Storage battery anode lead plaster capable of enhancing SAE standard high temperature service life and preparation method
  • Storage battery anode lead plaster capable of enhancing SAE standard high temperature service life and preparation method
  • Storage battery anode lead plaster capable of enhancing SAE standard high temperature service life and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: the lead powder that 100kg PbO content is 70%~85% is added in the plaster mixing machine, add the fiber of 0.05kg, the superfine barium sulfate of 0.05kg carbon black, 0.1kg simultaneously, above-mentioned material is stirred, then Add 10kg of purified water dissolved with 0.1kg of magnesium sulfate, mix evenly in the wet state, and quickly drench with a density of 1.400g / cm 3 (25°C) sulfuric acid solution 4kg, during the mixing process, control the paste temperature to be less than 65°C, the reaction is uniform and the temperature drops below 45°C, and the paste can be used.

Embodiment 2

[0027] Embodiment 2: 100kgPbO content is that the lead powder of 70%~85% is added in the paste machine, add the fiber of 0.07kg, the superfine barium sulfate of 0.1kg carbon black, 0.5kg at the same time, above-mentioned materials are stirred, then add 11kg of purified water dissolved with 0.2kg of magnesium sulfate, mixed evenly in the wet state, quickly poured in with a density of 1.400g / cm 3 (25°C) sulfuric acid solution 6kg, during the mixing process, control the temperature of the paste to be less than 65°C, the reaction is uniform and the temperature drops below 45°C, and the paste can be used.

Embodiment 3

[0028] Embodiment 3: the lead powder that 100kg PbO content is 70%~85% is added in the plaster mixing machine, add the fiber of 0.1kg, the superfine barium sulfate of 0.2kg carbon black, 0.8kg simultaneously, above-mentioned material is stirred, then Add 12kg of purified water dissolved with 0.4kg of magnesium sulfate, mix evenly in the wet state, and quickly drench with a density of 1.400g / cm 3 (25°C) sulfuric acid solution 8kg, during the mixing process, the temperature of the mixing paste is controlled to be less than 65°C, the reaction is uniform and the temperature drops below 45°C, and the paste can be 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
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a storage battery anode lead plaster capable of enhancing SAE standard high temperature service life and a preparation method, aiming at solving the problem of high temperature service life of lead-acid storage batteries. The technical scheme is that the lead plaster raw materials are prepared by the following substances in parts by weight: 100 of lead powder, 0.05-0.1 of fiber, 0.1-1.0 of superfine barium sulfate, 0.05-0.2 of carbon black, and 0.1-0.4 of magnesium sulfate. The invention selects superfine barium sulfate as anode additive, thus delaying contraction and rigidification of anode plate under high temperature and prolonging service life of the storage battery; magnesium sulfate and carbon black improve the porosity of the anode active substance, facilitates dispersion of sulfuric acid and is beneficial for starting performance of the storage battery. Proved by test data, main technical performance index can perfectly achieve and surpass the standard requirement, and satisfy the requirement of the automobile on the high temperature service life of the storage battery.

Description

technical field [0001] The invention relates to a positive electrode paste of a lead-acid storage battery and a preparation method thereof, in particular to a positive electrode paste of a storage battery that can improve the high-temperature service life of the SAE standard, and belongs to the technical field of storage batteries. Background technique [0002] The positive and negative plates are the most critical components of the battery, and the quality of the positive and negative plates directly determines the discharge capacity and cycle life of the battery. With the rapid development of the automobile industry, the performance requirements for lead-acid batteries are getting higher and higher, one of which is to put forward higher requirements for the service life of batteries under high temperature conditions. Basic lead sulfate, lead oxide, lead sulfate, etc. in the positive electrode paste are oxidized to PbO during the chemical formation process 2 Microporous ag...

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 Applications(China)
IPC IPC(8): H01M4/14H01M4/62H01M4/16
CPCY02E60/126Y02E60/10
Inventor 李建华陈志雪
Owner 中国船舶重工集团动力股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com