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A kind of positive lead paste of lead-acid storage battery

A lead-acid battery, positive lead paste technology, applied in lead-acid batteries, battery electrodes, circuits and other directions, can solve the problems of complex steps, inability to significantly improve performance, increase battery costs, etc., to improve utilization, improve life, improve The effect of service life

Active Publication Date: 2021-01-19
HENAN CHILWEE GENSHORE POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is not only complicated in steps, but also needs to add a strong reducing agent, which increases the cost of the battery and cannot significantly improve the performance.
Patent CN105870451A (CN201610314725.7) discloses a graphene dispersion liquid for lead-acid batteries and its preparation process. Adding naphthalenesulfonic acid formaldehyde condensate sodium salt firstly modifies the surface of graphene oxide to fully disperse graphene oxide. The method still needs to add a reducing agent, which requires strong dispersion and increases the cost of the battery

Method used

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Examples

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Embodiment 1

[0038] A positive lead paste for a lead-acid storage battery. The raw materials are composed of 90 parts of lead powder, 10 parts of sulfuric acid, 12 parts of water, 0.1 part of short fiber, 0.05 part of xanthan gum and 0.3 part of graphite in parts by weight. Wherein, the particle size of the xanthan gum is 20-200 mesh; the density of the sulfuric acid is 1.4±0.001g / cm 3 (25° C.); the short fibers are polyester fibers with a length of 2-6 mm.

Embodiment 2

[0040] A positive lead paste for a lead-acid storage battery. The raw materials are composed of 70 parts of lead powder, 6 parts of sulfuric acid, 10 parts of water, 0.5 part of short fiber, 0.5 part of xanthan gum and 0.2 part of graphite in parts by weight. Wherein, the particle size of the xanthan gum is 20-200 mesh; the density of the sulfuric acid is 1.4±0.001g / cm 3 (25° C.); the short fibers are polyester fibers with a length of 2-6 mm.

Embodiment 3

[0042] A positive lead paste for a lead-acid storage battery. The raw materials are composed of 90 parts of lead powder, 8 parts of sulfuric acid, 5 parts of water, 0.05 part of short fiber, 0.3 part of xanthan gum and 0.1 part of graphite in parts by weight. Wherein, the particle size of the xanthan gum is 20-200 mesh; the density of the sulfuric acid is 1.4±0.001g / cm 3 (25° C.); the short fibers are polyester fibers with a length of 2-6 mm.

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Abstract

The invention discloses a lead-acid storage battery positive lead paste. The lead-acid storage battery positive lead paste is prepared from the following raw materials in parts by weight: 70-90 partsof lead powder, 3-15 parts of sulfuric acid, 5-20 parts of water, 0.05-1 part of short fiber, 0.05-0.5 part of graphite and 0.05-0.5 part of xanthan gum. A lead-acid storage battery prepared by usingthe positive lead paste is high in initial capacity, slow in attenuation and long in cycle life, has strong large current discharge and low temperature charge and discharge performance, and ensures that the combination performance of the lead paste and a grid is significantly improved; and the problems of low initial capacity, short cycle life, easy falling off of active materials and the like inexisting lead-acid storage batteries can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of lead-acid storage battery manufacturing, and in particular relates to a lead-acid storage battery anode lead paste. Background technique [0002] Compared with the existing nickel-metal hydride batteries and lithium-ion batteries, lead-acid batteries have the advantages of low cost, safety and reliability, mature production technology, long service life, easy recycling and stable electrical performance, etc. The best choice for commercial applications in the field of communication energy storage. However, due to the weakness of lead-acid batteries in terms of weight ratio, energy and cycle use, its wide application is limited. One of the main reasons for the low weight-to-energy ratio is that the weight of the positive plate of the lead-acid battery cannot be reduced due to the low utilization rate of the positive active material, especially in high-power and power applications. It is seriously challeng...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/57H01M4/62H01M10/06
CPCH01M4/364H01M4/57H01M4/62H01M4/622H01M4/625H01M10/06Y02E60/10
Inventor 李芹坡程志明梁艳丽呼梦娟
Owner HENAN CHILWEE GENSHORE POWER
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