Environment-friendly and energy-saving protective agent for coating surface of positive unformed plate and coating production method employing environment-friendly and energy-saving protective agent

A technology of surface protective agent and production method, applied in lead-acid battery electrodes and other directions, can solve the problems of inability to fully utilize, high surface dry temperature, secondary pollution manufacturing cost, etc., so as to suppress the generation of surface cracks and surface floating powder. , The effect of inhibiting surface floating powder and reducing shedding

Active Publication Date: 2016-09-28
ZHEJIANG TIANNENG BATTERY JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] 2. Although the drained lead paste and acid are recycled by various methods, the process will cause secondary pollution and increase the manufacturing cost. Moreover, it cannot be fully utilized, and smelting and regeneration will cause greater environmental pollution. Increased environmental protection treatment costs;
[0015] 3. There is a lot of acid on the surface of the raw plate after acid rolling, and a higher surface drying temperature is required when the surface is dry, and the energy consumption is relatively high;
[0016] 4. The time period of the production site cannot meet the 6S requirements due to the recycling equipment and recycling operation process

Method used

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  • Environment-friendly and energy-saving protective agent for coating surface of positive unformed plate and coating production method employing environment-friendly and energy-saving protective agent

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] According to the percentage by weight, the particles are 0.5% of nano-fumed silica of 7-40 nm, 0.3% of 60% polytetrafluoroethylene emulsion, 0.6% of carboxymethyl cellulose, 0.4% of carboxy cellulose, and 2.5-3.5mm length polyester Fiber 0.20%, concentrated sulfuric acid 25%, distilled water 73%.

[0048] Production steps:

[0049] (1) Using a high-speed shear separation mixer, add nano fumed silica to distilled water, and stir continuously for 30 to 60 minutes to prepare a 20% nano fumed silica mother liquor; add distilled water to concentrated sulfuric acid, and fully stir to prepare it at 25°C Density 1.40g / cm 3 dilute sulfuric acid solution;

[0050](2) In the speed-adjustable mixer, according to the proportion of the components, add the remaining distilled water, 60% polytetrafluoroethylene emulsion, carboxymethyl cellulose, carboxy cellulose, polyester fiber for initial stirring, and the stirring speed is 100 Turn / min, stirring time 10min; after stirring, dilut...

Embodiment 2

[0053] 0.8% by weight of nano fumed silica, 0.1% of 60% polytetrafluoroethylene emulsion, 1.5% of carboxymethyl cellulose, 0.2% of carboxy cellulose, 0.05% of polyester fiber, 41% of concentrated sulfuric acid, 56.35% of distilled water .

[0054] Production steps:

[0055] (1) Using a high-speed shear separation mixer, add nano fumed silica to distilled water, and stir continuously for 30 to 60 minutes to prepare a 20% nano fumed silica mother liquor; add distilled water to concentrated sulfuric acid, and fully stir to prepare it at 25°C Density 1.40g / cm 3 dilute sulfuric acid solution;

[0056] (2) In the speed-adjustable mixer, according to the proportion of the components, add the remaining distilled water, 60% polytetrafluoroethylene emulsion, carboxymethyl cellulose, carboxy cellulose, polyester fiber for initial stirring, and the stirring speed is 200 rpm, stirring time 8min; after stirring, dilute sulfuric acid solution and nano fumed silica mother liquor were added...

Embodiment 3

[0059] Take 1.2% of nano fumed silica, 0.2% of 60% polytetrafluoroethylene emulsion, 1% of carboxymethyl cellulose, 0.3% of carboxy cellulose, 0.10% of polyester fiber, 30% of concentrated sulfuric acid, and 67.2% of distilled water by weight percentage .

[0060] Production steps:

[0061] (1) Using a high-speed shear separation mixer, add nano fumed silica to distilled water, and stir continuously for 30 to 60 minutes to prepare a 20% nano fumed silica mother liquor; add distilled water to concentrated sulfuric acid, and fully stir to prepare it at 25°C Density 1.40g / cm 3 dilute sulfuric acid solution;

[0062] (2) In the speed-adjustable mixer, according to the proportion of the components, add the remaining distilled water, 60% polytetrafluoroethylene emulsion, carboxymethyl cellulose, carboxy cellulose, polyester fiber for initial stirring, and the stirring speed is 300 RPM, stirring time 5min; after stirring, add dilute sulfuric acid solution and nano fumed silica mot...

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Abstract

The invention discloses an environment-friendly and energy-saving protective agent for coating the surface of a positive unformed plate. The environment-friendly and energy-saving protective agent comprises nano fumed silica, a 60% polytetrafluoroethylene emulsion, carboxymethylcellulose, carboxyl cellulose, a polyester fiber, a sulfuric acid and distilled water. The invention further discloses a coating production method employing the protective agent in a roller-dipping rolling manner. The advantages of acid leaching rolling are reserved; the adverse consequences generated by an acid leaching hydraulic mode are avoided; and the protective agent has important significance in the economic benefit aspect of reducing the production cost and the social benefit aspect of reducing the lead slag and waste acid effluents.

Description

technical field [0001] The invention relates to the field of accumulator production, in particular to an environment-friendly and energy-saving positive-coated positive plate surface protective agent and a smear production method thereof. Background technique [0002] In the manufacturing process of lead-acid batteries, it is an indispensable step for the green plates after mechanical smearing to be acid-drenched and rolled. The purpose is to improve the surface smoothness and strength of the green plates and prevent the lead paste between the green plates adhesion and cracks on the surface of the green plate. At this stage, due to the different uses of batteries in domestic smears, the main rolling methods adopted are as follows: [0003] 1. The dry rolling method of the raw plate; [0004] 2. Water spraying and rolling method of raw plate; [0005] 3. The rolling method of the paper film on the surface of the raw electrode plate; [0006] 4. The method of acid-drenchin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/20H01M4/16
CPCH01M4/16H01M4/20Y02E60/10
Inventor 张继胜胡国柱王杜友
Owner ZHEJIANG TIANNENG BATTERY JIANGSU
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