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Colloid lead-cloth batteries in high energy, and preparation method

A colloidal electrolyte and lead cloth technology, applied in lead-acid batteries, lead-acid battery construction, final product manufacturing, etc., can solve the problems of poor corrosion resistance of alloy grids, escape of sulfuric acid electrolyte, and low weight-to-energy ratio. , to achieve the effect of improving technical performance and service life, conducive to ion diffusion and long service life

Inactive Publication Date: 2009-07-01
钟发平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the relatively low weight specific energy of the existing sealed lead-acid battery, the poor corrosion resistance of the alloy grid, the easy delamination of the electrolyte, the short service life, the escape of the sulfuric acid electrolyte, and the pollution of the environment , poor safety performance; and provide a high-energy colloidal lead-cloth battery with high weight-to-weight ratio, low water loss, long service life, good reliability and safety, and a manufacturing method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1. Take the lead cloth of certain size and thickness, put it in the corresponding mold and cast it into a grid, and then use the traditional lead-acid battery paste method to coat the positive electrode paste or the negative electrode lead paste on both sides of the grid respectively. Then solidify and dry to make the positive plate and the negative plate respectively, assemble the battery according to the ordinary valve-regulated battery method, add a certain amount of 3 Dilute sulfuric acid electrolyte, at 0.15C 10 (A) The current charges the storage battery, and stops charging to 600% of the battery capacity, and then charges at 0.1C 10 (A) The electric current is discharged for 8 hours, and the discharge depth is 80%. 10 (A) Charging at 2.45V with current limiting and constant voltage for 20 hours. The added colloidal electrolyte is prepared according to the following percentage by weight: fumed silica 2%, of which 200M 2 / g accounted for 30%, 300M 2 ...

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PUM

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Abstract

A high-energy colloidal lead cloth battery and a manufacturing method thereof. Positive and negative plates and AGM diaphragms are assembled in a battery tank, the positive and negative grids are made of lead cloth or foamed lead, and the electrolyte filled in the battery tank is a colloidal electrolyte. , The colloidal electrolyte is composed of fumed silica, stabilizer, phosphoric acid, active additives, dilute sulfuric acid, and pure water. It has good thixotropy and rheology without delamination. The colloidal lead-cloth battery of the invention has high specific energy, long service life, not easy to lose water, good reliability, can be placed in any direction, no electrolyte escape, environmental protection and good safety performance.

Description

technical field [0001] The invention relates to a storage battery, in particular to a high-energy colloidal lead cloth storage battery. Background technique [0002] Sealed lead-acid batteries currently used in communications, power and banking UPS departments are composed of battery tanks, positive and negative plates, electrolyte and AMG separators, and the electrolyte is made of dilute sulfuric acid. Since this kind of sealed lead-acid battery uses lead-calcium alloy as the plate grid, the negative grid has a high hydrogen evolution potential and less water loss, so this kind of battery has good maintenance-free performance and is widely used in communications, electric power, banking and other industries. . [0003] But there are still some shortcomings in this storage battery. First of all, the battery adopts the traditional lead-calcium alloy grid, and the grid thickness is generally 3-4mm, so the grid is heavy and the specific energy of the battery is low; secondly,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/10H01M10/12
CPCY02E60/126Y02E60/10Y02P70/50
Inventor 钟发平
Owner 钟发平
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