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Composite additive of lead-acid storage battery

A technology of lead-acid batteries and composite additives, applied in the direction of lead-acid batteries, etc., can solve the problems of battery capacity attenuation, end of life of lead-acid batteries, low service life of battery packs, etc., to improve life, reduce softening and shedding, improve consistent effect

Inactive Publication Date: 2013-08-14
TIANNENG BATTERY WUHU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the use of lead-acid batteries, after hundreds of charge-discharge cycles, due to the increasing differences in resistance, acid content, acid density, and open-circuit voltage among the batteries in the battery pack, the discharge time will be significantly reduced. decline, eventually leading to the end of life of the lead-acid battery
Therefore, the service life of the battery pack is usually lower than the service life of the single battery
In the process of repeated charging and discharging of the battery, the active material of the positive electrode will expand and shrink repeatedly, causing the active material to soften and fall off, which will also cause the battery capacity to decay and the life to end.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Weigh the following components:

[0011] 0.2 parts of graphite, 1.1 parts of 4BS, 0.4 parts of silicon dioxide, 0.06 parts of antimony trioxide, 0.09 parts of stannous sulfate;

[0012] Add the above components into the paste mixing machine and mix with lead powder, water and acid, and make lead paste according to the conventional process; apply the lead paste to the board, and make a lead-acid battery (6-DZM-12) according to the conventional process, charge Discharge cycle 200 times, capacity discharge 135 minutes.

Embodiment 2

[0014] Weigh the following components:

[0015] 0.15 parts of graphite, 0.9 parts of 4BS, 0.7 parts of silicon dioxide, 0.1 parts of antimony trioxide, 0.12 parts of stannous sulfate;

[0016] Add the above components into the paste mixing machine and mix with lead powder, water and acid, and make lead paste according to the conventional process; apply the lead paste to the board, and make a lead-acid battery (6-DZM-12) according to the conventional process, charge Discharge cycle 200 times, capacity discharge 131 minutes.

Embodiment 3

[0018] Weigh the following components:

[0019] 0.3 parts of graphite, 0.5 parts of 4BS, 0.5 parts of silicon dioxide, 0.05 parts of antimony trioxide, 0.15 parts of stannous sulfate;

[0020] Add the above components into the paste mixing machine and mix with lead powder, water and acid, and make lead paste according to the conventional process; apply the lead paste to the board, and make a lead-acid battery (6-DZM-12) according to the conventional process, charge Discharge cycle 200 times, capacity discharge 133 minutes.

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Abstract

The invention discloses a composite additive of a lead-acid storage battery, The composite additive is used for being added in a lead plaster of a positive pole of the lead-acid storage battery. The composite additive comprises the components in percentage by mass: 0.15-0.3% of graphite, 0.5-1.5% of 4BS (tetrabasic lead sulfate), 0.1-0.7% of silicon dioxide, 0.05-0.1% of antimony trioxide, and 0.05-0.15% of stannous sulfate, wherein the content is mass proportion of the components to lead powder. According to the composite additive of the lead-acid storage battery, the consistency of a battery pack is beneficially improved, the softening and falling of active substances can be reduced, and further the service life of the battery pack can be prolonged.

Description

technical field [0001] The invention relates to the technical field of storage battery manufacturing, in particular to a composite additive for lead-acid storage batteries. Background technique [0002] During the use of lead-acid batteries, after hundreds of charge-discharge cycles, due to the increasing differences in resistance, acid content, acid density, and open-circuit voltage among the batteries in the battery pack, the discharge time will be significantly reduced. decline, eventually leading to the end of the life of the lead-acid battery. Therefore, the service life of the battery pack is usually lower than that of the single battery. In the process of repeated charging and discharging of the battery, the active material of the positive electrode will expand and shrink repeatedly, causing the active material to soften and fall off, which will also cause the capacity of the battery to decay and the life to end. Contents of the invention [0003] The purpose of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/08
CPCY02E60/126Y02E60/10
Inventor 卢晓明陈林陈铁宝龙洋洋
Owner TIANNENG BATTERY WUHU
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