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

Container formation process for valve-regulated lead storage battery

A lead-acid battery, internalization technology, applied in the direction of lead-acid battery, lead-acid battery construction, secondary battery, etc., can solve the problems of large charging capacity, long online charging time, occupying a lot of turnover materials, etc. The effect of shortening the formation time and reducing the production cost

Inactive Publication Date: 2015-01-21
TIANNENG GRP HENAN ENERGY TECH
View PDF3 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used internalization process usually adopts the mode of three charges and two discharges. The online charging time is long, it takes up a lot of turnover materials, and the charging amount is large at the same time. It has great practical significance to reduce the production cycle, reduce the production cost and improve the economic benefit of the enterprise.

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

[0019] 1. The density of dilute sulfuric acid is 1.25 g / cm 3 (25°C), wherein the percentage content of concentrated sulfuric acid is 32% (wt), the percentage content of anhydrous sodium sulfate is 1.1% (wt), the percentage content of stannous sulfate is 0.1% (wt), and the rest is deionized water.

[0020] 2. Use an acid adding machine to add 88% of the total acid addition to the battery, and the acid addition accuracy is controlled at ±0.5%.

[0021] 3. After adding acid, let the battery stand for 1 to 3 hours, and put it on the charging rack. There is a water tank on the charging stand, and the temperature of the battery is controlled by circulating water.

[0022] 4. For formation, the charging current is 0.05C, which means that the current is 0.05 times the rated capacity of the battery.

[0023] The first stage of charging: constant current 0.05C (A) charging for 2h;

[0024] The second stage of charging: constant current 0.3C (A) charging for 8h;

[0025] The third st...

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
Densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a container formation process for a valve-regulated lead storage battery. The container formation process comprises the steps of battery acidifying, forming and matching. Dilute sulfuric acid with adensity of 1.24-1.26g / cu.cm. at 25 DEG.C is quantitatively added in the battery, wherein the concentrated sulfuric acid content is 31%-33%, the anhydrous sodium sulfate content is 0.8%-1.5%, the stannous sulfate content is 0.1%-0.15%, and the rest is pure water. Each unit cell of each valve-regulated lead storage battery semi-finished product is quantitatively acidified twice; the active substances in the battery are fast and sufficiently transformed through an advanced formation process; compared with the traditional container formation process, the formation time is shortened by 40% and more, the charging amount is reduced by 20% and more, the battery matching rate is improved by 5% and more, and the cycle life of the battery is improved by 20% and more. The container formation process disclosed by the invention further has an advantage that the acid extraction process in the tradition production process is cancelled, so that the uniformity of the battery is improved, the labor consumption is reduced, and the production cost is lowered.

Description

technical field [0001] The invention relates to a battery internal formation process, in particular to a valve-regulated lead storage battery internal formation process. Background technique [0002] Lead-acid batteries are mainly composed of battery tank, positive plate, negative plate, separator and electrolyte. The plates are divided into raw plates and cooked plates. The lead sulfate in the plates is converted into active substances that can provide electric energy through charging and forming in the special formation tank. Such plates are cooked plates. Semi-finished batteries assembled with green plates need to add dilute sulfuric acid for charge formation, which is the internal formation process. At present, the production of valve-regulated lead-acid batteries mostly adopts the internalization process. The commonly used internalization process usually adopts the mode of three charges and two discharges. The online charging time is long, it takes up a lot of turnove...

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): H01M10/12
CPCH01M10/121Y02E60/10Y02P70/50
Inventor 刘为胜欧阳万忠秦应林
Owner TIANNENG GRP HENAN ENERGY TECH
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