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Lead-acid storage battery cathode lead plaster

A technology of lead-acid battery and negative electrode paste, which is applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problem of not being able to reduce the hydrogen evolution overpotential of the negative active material, and achieve the effect of stable charge and discharge performance

Active Publication Date: 2014-12-17
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because it is difficult to find long-term stable substances as additives during the cycle
Secondly, the negative electrode is easy to precipitate hydrogen gas in the later stage of charging, and the addition of additives cannot reduce the hydrogen evolution overpotential of the negative electrode active material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A negative lead paste for a lead-acid storage battery, said lead paste comprising the following components in parts by weight: 70 parts of lead powder, 15 parts of sulfuric acid, 5 parts of water, 2 parts of short fibers (polyester fibers), purity ≥ 92% 0.1 parts of succinic acid and 10 parts of carbon nanotubes (60-80nm in particle size).

Embodiment 2

[0028] A negative lead paste for a lead-acid storage battery, said lead paste comprising the following components in parts by weight: 90 parts of lead powder, 3 parts of sulfuric acid, 20 parts of water, 0.05 part of short fiber (polyester fiber), purity ≥ 92% 20 parts of succinic acid and 0.1 part of carbon nanotubes (60-80nm in particle size).

Embodiment 3

[0030] A lead-acid storage battery negative lead paste, said lead paste comprising the following components in parts by weight: 80 parts of lead powder, 8 parts of sulfuric acid, 20 parts of water, 0.05 parts of short fiber (polyester fiber), purity ≥ 92% 10 parts of succinic acid, 5 parts of carbon nanotubes (60-80nm in particle size), 5 parts of stannous oxide and 10 parts of antimony trioxide.

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Abstract

The invention relates to the field of manufacturing of a lead battery and particularly relates to a lead-acid storage battery cathode lead plaster including following components, by weight, 70-90 parts of lead powder, 3-15 parts of sulfuric acid, 5-20 parts of water, 0.05-2 parts of short fibers, 0.1-20 parts of succinic acid and 0.1-10 parts of carbon nano-tubes. A battery prepared from the lead plaster is stable in charging and discharging performance, is free of exceeded reduction of electric capacitance with increase of a use time, is good in hydrogen-evolution inhibiting effect at a cathode, and can reduce a separate-out amount of hydrogen at the cathode when the battery is charged so that the battery is improved in performance. The lead plaster is good in low-temperature charging and discharging performance.

Description

technical field [0001] The invention relates to the field of lead battery manufacturing, in particular to a negative electrode paste of a lead-acid storage battery. Background technique [0002] With the development of the electric bicycle industry, higher technical requirements are put forward for lead-acid batteries used in electric mopeds. Among them, technical indicators such as low-temperature performance and charging acceptance are related to the negative plate of lead-acid batteries, and it is urgent to improve the performance level of the negative electrode. To meet user requirements. [0003] The traditional lead-acid battery negative electrode paste formula is a mixture of lead powder, sulfuric acid, water, and expansion agents such as lignin, humic acid, and barium sulfate in a certain proportion. The negative plate of the lead-acid battery is composed of very fine spongy lead particles. According to the tendency of free energy to spontaneously decrease, when th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/57H01M4/62
CPCH01M4/57H01M4/62H01M4/625H01M4/628Y02E60/10
Inventor 张绍辉
Owner CHAOWEI POWER CO LTD
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