A kind of preparation method and application of lead storage battery positive plate

A lead-acid battery, positive plate technology, applied in the direction of lead-acid battery electrodes, lead-acid batteries, lead-acid battery construction, etc., can solve the problems of rapid battery capacity decay, short cycle life, etc., to avoid capacity decay, prolong cycle life, Solve the effect of poor battery discharge cycle performance

Active Publication Date: 2020-12-11
TIANNENG BATTERY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in this field, the present invention provides a method for preparing a positive plate of a lead storage battery, with the purpose of solving the problems of short cycle life and fast decay of battery capacity in existing deep-cycle power lead-acid batteries

Method used

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  • A kind of preparation method and application of lead storage battery positive plate
  • A kind of preparation method and application of lead storage battery positive plate
  • A kind of preparation method and application of lead storage battery positive plate

Examples

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Embodiment 1

[0031] The preparation method of the lead storage battery positive plate of the present embodiment comprises the steps of:

[0032] (1) Clean the 6-DZF-20 positive plate with detergent to remove impurities such as saponified oil on the plate, and then wash the detergent with pure water.

[0033] (2) Pretreatment: Immerse the positive plate in the pretreatment solution and charge it with a current density of 0.02mA / cm 2 , the charging time is 30h, the charging temperature is 25±5℃, then take out the positive plate and rinse the positive plate with a large amount of pure water, and dry it;

[0034] The pretreatment liquid contains NaClO 4 , SbCl 3 and H 2 o 2 sulfuric acid solution, where NaClO 4 The mass concentration is 0.7%, SbCl 3 The mass concentration is 0.2%, H 2 o 2 The mass concentration is 1%, the mass concentration of sulfuric acid is 4%, and the temperature of the pretreatment liquid is 25±2°C.

[0035] (3) Coating lead paste on the surface of the pretreated...

Embodiment 2

[0043] The preparation method of the lead storage battery positive plate of the present embodiment comprises the steps of:

[0044] (1) Clean the 6-DZF-20 positive plate with detergent to remove impurities such as saponified oil on the plate, and then wash the detergent with pure water.

[0045] (2) Pretreatment: Immerse the positive plate in the pretreatment solution and charge it with a current density of 0.02mA / cm 2 , the charging time is 30h, the charging temperature is 25±5℃, then take out the positive plate and rinse the positive plate with a large amount of pure water, and dry it;

[0046] The pretreatment liquid contains NaClO 4 sulfuric acid solution, where NaClO 4 The mass concentration is 0.4%, the mass concentration of sulfuric acid is 4%, and the temperature of the pretreatment liquid is 25±2°C.

[0047] (3) Coating lead paste on the surface of the pretreated positive plate.

[0048] Taking the total weight of raw materials as 100%, the raw material compositio...

Embodiment 3

[0054] The preparation method of the lead storage battery positive plate of the present embodiment comprises the steps of:

[0055] (1) Clean the 6-DZF-20 positive plate with detergent to remove impurities such as saponified oil on the plate, and then wash the detergent with pure water.

[0056] (2) Pretreatment: Immerse the positive plate in the pretreatment solution and charge it with a current density of 0.02mA / cm 2 , the charging time is 30h, the charging temperature is 25±5℃, then take out the positive plate and rinse the positive plate with a large amount of pure water, and dry it;

[0057] The pretreatment liquid contains NaClO 4 , SbCl 3 and H 2 o 2 sulfuric acid solution, where NaClO 4 The mass concentration is 0.7%, SbCl 3 The mass concentration is 0.05%, H 2 o 2 The mass concentration is 0.2%, the mass concentration of sulfuric acid is 4%, and the temperature of the pretreatment liquid is 25±2°C.

[0058] (3) Coating lead paste on the surface of the pretrea...

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Abstract

The invention discloses a method for preparing a positive plate of a lead-acid storage battery, comprising steps: (1) pretreatment: immersing the positive plate in a pretreatment solution for charging, with a current density of 0.01mA / cm 2 ~20mA / cm 2 , charging time 10h ~ 48h; the pretreatment liquid contains NaClO 4 , SbCl 3 and H 2 o 2 (2) Apply lead paste on the surface of the pretreated positive plate, solidify and dry. The invention solves the problems of short cycle life and fast decay of battery capacity of the existing deep cycle power lead-acid battery. The lead storage battery made of the lead storage battery positive plate prepared by the above preparation method has the characteristics of long service life.

Description

technical field [0001] The invention relates to the technical field of lead storage batteries, in particular to a preparation method and application of a positive plate of a lead storage battery. Background technique [0002] Since the invention of lead-acid batteries, it has experienced 160 years of development. During this period, lead and lead-based alloys were widely used in the manufacture of lead-acid batteries as battery current collectors (grids). Among them, when lead-calcium alloys were applied to lead-acid batteries in the 1940s, the cycle performance of lead batteries declined severely. The researchers believe that this phenomenon is due to the passivation of the grid / active material corrosion layer caused by the absence of antimony in the grid alloy. Subsequently, a lot of research work has been carried out based on this phenomenon. During this period, the study found that the same rapid degradation of early cycle performance also occurred in low-antimony all...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/20H01M4/04H01M10/12C25D11/34
CPCC25D11/34H01M4/0442H01M4/20H01M10/12Y02E60/10Y02P70/50
Inventor 张峰博郭志刚王杜友李桂发方广民李雪辉孔鹤鹏
Owner TIANNENG BATTERY GROUP
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