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

Carbon coated titanium-based lead dioxide positive plate for lead-acid storage battery

A lead-acid battery, lead dioxide technology, applied in lead-acid battery electrodes, battery electrodes, electrode carriers/current collectors, etc., can solve problems affecting the bonding force of metal lead layers, affecting battery working stability and cycle life, contact resistance Large and other problems, to achieve the effect of high bonding tightness, small contact resistance, and inhibiting passivation

Inactive Publication Date: 2015-02-18
ZHEJIANG NARADA POWER SOURCE CO LTD +1
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metal titanium is easy to form a titanium dioxide layer on the surface of the air, which affects the bonding force between the metal lead layer or the lead-tin alloy layer and the titanium grid, resulting in a large contact resistance between the lead layer and the titanium layer, which affects the working stability of the battery. cycle 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
  • Carbon coated titanium-based lead dioxide positive plate for lead-acid storage battery
  • Carbon coated titanium-based lead dioxide positive plate for lead-acid storage battery
  • Carbon coated titanium-based lead dioxide positive plate for lead-acid storage battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] (1). Polish the surface of the metal titanium mesh with sandpaper, then immerse it in a NaOH solution with a concentration of 5% to 10% to remove the grease on the surface of the titanium mesh, wash it with water and immerse it in a mixed solution of hydrochloric acid and hydrofluoric acid Pickling to remove surface oxides, wherein the concentration of HCl is 40~50mL / L, and the concentration of HF is 20~40mL / L; then wash with water.

[0028] (2). If figure 1 As shown, the treated titanium grid is vapor-deposited in a high-temperature furnace to obtain a carbon-coated titanium substrate grid. Place the treated titanium mesh in a high-temperature furnace with an inert gas, and raise the temperature at a rate of 5-10°C / min. When a certain temperature is reached, a carbon source gas is introduced, and after a certain period of constant temperature, a carbon-coated titanium substrate grid is obtained. . The carbon source gas can be organic matter such as methane, formaldeh...

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 preparation method of a carbon coated titanium-based lead dioxide positive plate which is obtained by coating a carbon material on the surface of a metallic titanium mesh with a vapor deposition method. The thickness of a carbon layer of a carbon coated titanium-based grid is 5-20 mu m. Compared with a traditional lead-acid battery positive plate, the carbon coated titanium-based lead dioxide positive plate has the characteristics of light grid mass and high mass specific energy; and further, with adoption of the carbon coated titanium-based lead dioxide positive plate, the metallic titanium-based surface layer is prevented from forming a passivation layer, contact resistance of active substances and the titanium-based grid is reduced, and the metallic titanium-based grid can be practically applied to a positive pole of the lead-acid battery.

Description

technical field [0001] The invention belongs to the field of lead-acid batteries, and in particular relates to the preparation of a carbon-coated titanium-based lead dioxide grid and a positive plate. Background technique [0002] The lead-acid storage battery has a history of more than 100 years. With the expansion of its application fields, it is also constantly developing. Although it has excellent properties such as good reversibility, stable voltage characteristics, wide application range, abundant raw materials, low cost, and simple process, but due to the high density and low strength of lead, it has low specific energy and limited service life, which affects its scope of use. If lead can be replaced with high-strength, low-density, and corrosion-resistant materials as grids, the battery's own weight can be greatly reduced, the cycle life can be improved, and the performance of lead-acid batteries can be greatly improved. [0003] In order to reduce the weight of th...

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
IPC IPC(8): H01M4/14H01M4/68H01M4/73H01M4/20
CPCH01M4/14H01M4/20H01M4/21H01M4/66H01M4/667H01M4/73H01M4/745Y02E60/10
Inventor 陈冬相佳媛丁平陈建吴贤章
Owner ZHEJIANG NARADA POWER SOURCE CO LTD
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