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Positive lead cream of valve-controlled sealed plumbous acid accumulator for starting vehicle and production thereof

A lead-acid battery, car starting technology, applied in electrode manufacturing, battery electrodes, circuits, etc., can solve the problems of low utilization rate of positive active materials, high density, and limited battery life.

Inactive Publication Date: 2006-03-15
中国船舶重工集团动力股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power density and energy density of lead-acid batteries are low. On the one hand, it is due to the high density of lead and its compounds. On the other hand, it is due to the low utilization rate of its active materials, especially the low utilization rate of positive active materials. Life is mostly limited by the positive electrode, so in recent years, people in the industry have been working on the research of positive active materials in order to improve their utilization and prolong battery life

Method used

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  • Positive lead cream of valve-controlled sealed plumbous acid accumulator for starting vehicle and production thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Add 100kg of lead powder with a PbO content of 75% to 85% into the paste mixer, add 0.05kg of fiber and 0.3kg of high-purity natural graphite powder at the same time, stir the above materials evenly, and then add 10kg of purified water , after mixing evenly in the wet state, the rapid pouring density is 1.400g / cm 3 (25°C) sulfuric acid solution 10kg, during the mixing process, control the temperature of the paste at 75°C-85°C, keep it for 10-20 minutes until the reaction is uniform, take measures to cool down, and the temperature drops below 45°C, and the paste can be used.

Embodiment 2

[0022] Example 2: Add 100kg of lead powder with a PbO content of 75% to 85% into the paste mixer, add 0.06kg of fiber and 0.1kg of high-purity natural graphite powder at the same time, stir the above materials evenly, and then add 12kg of purified water , after mixing evenly in the wet state, the rapid pouring density is 1.400f / cm 3 (25°C) sulfuric acid solution 8kg, control the paste temperature 75°C-85°C during the mixing process, keep 10-20min after the reaction is uniform, take cooling measures, the temperature drops below 45°C, and the paste can be used.

Embodiment 3

[0023] Embodiment 3: 100kg PbO content is that 75%~85% lead powder is added in the plaster mixing machine, add the fiber of 0.055kg, the high-purity natural graphite powder of 0.2kg simultaneously, above-mentioned materials are stirred, then add 11kg of purified Water, after mixing evenly in wet state, pour in quickly with a density of 1.400g / cm 3 (25°C) sulfuric acid solution 9kg, control the paste temperature 75°C-85°C during the mixing process, keep for 10-20min after the reaction is uniform, take cooling measures, the temperature drops below 45°C, and the paste can be used.

[0024] The high-purity graphite powder used in the above-mentioned embodiments is that the natural flake graphite is screened to remove impurities, and then washed, separated, and dried to obtain the graphite powder with the required purity. Its purity is ≥99.85%; the residue on ignition is ≤0.15%; at least 90% of the particle size is between 30 μm and 65 μm.

[0025] Apply the positive lead paste pr...

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Abstract

The lead plaster for use in battery anode comprises 100 proportion lead powder, 0.05-0.06 proportion fabric and 0.1-0.3 proportion high purity natural graphite powder. The oxidation-proof anode ingredient is selected to improve charging property at low voltage and attain more cycling times.

Description

technical field [0001] The invention relates to a storage battery material and a preparation method, in particular to a valve-controlled sealed lead-acid storage battery cathode lead paste for automobile starting and a preparation method thereof, belonging to the technical field of storage batteries. Background technique [0002] With the rapid development of the automobile industry, the performance requirements of lead-acid batteries are getting higher and higher. As a high-end product of lead-acid batteries, valve-regulated sealed batteries have been used and researched in the past 20 years, and their actual performance, stability, and life characteristics have made great progress, and their application fields have become more extensive. At present, vehicles using valve-regulated batteries as backup power sources have been mass-produced abroad. For example, Toyota and Honda in Japan use 42V system vehicles using valve-regulated sealed batteries (for starting, lighting, ign...

Claims

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Application Information

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IPC IPC(8): H01M4/56H01M4/36H01M4/04
CPCY02E60/10
Inventor 李建华曹贵发王丽斋
Owner 中国船舶重工集团动力股份有限公司
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