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Colloidal electrolyte of lead acid accumulator

A technology of colloidal electrolyte and lead-acid batteries, which is applied in the direction of lead-acid batteries, etc., can solve the problems of unsuitable batteries, decreased discharge performance, and easy cracking, and achieve the effects of preventing precipitation, maintaining moisture, and ensuring consistency

Active Publication Date: 2006-03-22
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to improve the traditional colloidal electrolyte, which has defects such as large internal resistance, reduced discharge performance, easy c

Method used

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  • Colloidal electrolyte of lead acid accumulator

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1 A kind of lead-acid storage battery colloidal electrolyte each component counts as follows by percentage:

[0011] Nanoscale silicon dioxide (SiO 2 ) 0.2%

[0012] Sodium Carboxymethyl Cellulose (CMC) 0.3%

[0013] Stannous Sulfate (SnSO 4 ) 0.5%

[0014] Sulfuric acid (H 2 SO 4 ) 40%

[0015] Water 59%

Embodiment 2

[0016] Embodiment 2 A kind of lead-acid storage battery colloidal electrolyte each component counts as follows by percentage:

[0017] Nanoscale silicon dioxide (SiO 2 ) 0.4%

[0018] Sodium Carboxymethyl Cellulose (CMC) 0.1%

[0019] Stannous Sulfate (SnSO 4 ) 0.6%

[0020] Sulfuric acid (H 2 SO 4 ) 35%

[0021] Water 63.9%

Embodiment 3

[0022] Embodiment 3 A kind of lead-acid storage battery colloidal electrolyte each component counts as follows by percentage:

[0023] Nanoscale silicon dioxide (SiO 2 ) 0.5%

[0024] Sodium Carboxymethyl Cellulose (CMC) 0.2%

[0025] Stannous Sulfate (SnSO 4 ) O.2%

[0026] Sulfuric acid (H 2 SO 4 ) 45%

[0027] Water 54.1%

[0028] From attached figure 1 It can be seen from the comparison chart and table 1 and table 2 of battery life of colloidal electrolyte and ordinary electrolyte battery that the present invention improves the charging acceptance capacity, also improves the battery capacity, ensures the consistency of the battery, reduces water loss, and protects the pole plate, which can greatly improve The cycle life of the battery.

[0029] A (blank)

[0030] A (blank)

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Abstract

This invention discloses a lead-acid storage battery colloidal electrolyte composed of nmSiO2, CMC, SnSO4, H2SO4 and water with the following matches: nmSiO2: 0.2-5%, CMC: 0.01-0.3%, SnSO4: 0.05-0.6%, H2SO4: 35-45%, water: 49.1-64.74%, which improves the colloidal electrolyte.

Description

technical field [0001] The invention relates to the field of colloidal electrolyte formulations for lead-acid batteries, in particular to a battery colloidal electrolyte suitable for assembly with AGM separators. technical background [0002] Recently, valve-regulated sealed lead-acid batteries have developed very rapidly and are widely used in motorcycles, emergency power supplies, mobile power supplies, electric vehicles, etc. The battery cycle performance, maintenance-free performance, and charging adaptability are also getting higher and higher. In particular, the electric vehicle batteries used in deep cycles have higher requirements, such as small volume and large capacity. The discharge depth is generally 70% to 100%, the charging time is 8 to 10 hours, and the required number of cycles is more than 350 times. In addition, it is generally necessary to use multiple batteries in series, and the problem of consistency will affect the overall service life of the battery....

Claims

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Application Information

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IPC IPC(8): H01M10/08H01M10/10
CPCY02E60/126Y02E60/10
Inventor 刘孝伟
Owner CHAOWEI POWER CO LTD
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