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Vehicle used high-temperature lead-acid accumulator cathode diachylon and preparation method

A lead-acid battery, negative lead paste technology, applied in lead-acid battery electrodes, battery electrodes, circuits, etc., can solve the problems of shortened battery life, short high temperature life, poor low temperature starting performance, etc. performance, the effect of improving high temperature life and low temperature starting performance

Active Publication Date: 2010-06-23
FENGFAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems with this conventional formulation of negative electrode paste are: short life at high temperature of 75°C, poor starting performance at low temperature, shortened battery life due to shrinkage of negative active material, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: 100kg PbO content is that the aluminum powder of 63%~85% is added in paste machine, add sodium lignosulfonate (or lignin) 0.01kg, high-temperature sodium lignosulfonate (or high-temperature lignin) simultaneously 0.8kg, graphite powder 1.0kg, fiber 0.03kg, barium sulfate 0.3kg, humic acid 0.2kg, carbon black 0.1kg, stir the above materials evenly, then add 8kg of purified water (ie deionized water), wet mix After uniformity, the rapid pouring density is 1.400g / cm 3 (25°C) sulfuric acid solution 14kg, during the mixing process, control the paste temperature below 65°C, keep it for 10-20 minutes until the reaction is uniform, take cooling measures, the temperature drops below 45°C, and the paste can be used.

[0024] The sodium lignosulfonate used in the present invention is different from the high-temperature sodium lignosulfonate, and the high-temperature sodium lignosulfonate is a modified product of sodium lignosulfonate, which can withstand working temp...

Embodiment 2

[0025] Embodiment 2: 100kg PbO content is that the aluminum powder of 63%~85% is added in paste machine, add sodium lignosulfonate (or lignin) 0.5kg, high-temperature sodium lignosulfonate (or high-temperature lignin) simultaneously 0.01kg, graphite powder 0.5kg, fiber 0.08kg, barium sulfate 1.2kg, humic acid 1.0kg, carbon black 0.4kg, stir the above materials evenly, then add 12kg of purified water, after wet mixing evenly, quickly pour into The density is 1.400g / cm 3 (25°C) of sulfuric acid solution 6kg, during the mixing process, control the temperature of the paste below 65°C, keep it for 10-20 minutes to react evenly, then take cooling measures, the temperature drops below 45°C, and the paste can be used.

Embodiment 3

[0026] Embodiment 3: 100kg PbO content is that the aluminum powder of 63%~85% is added in the paste machine, add sodium lignosulfonate (or lignin) 0.25kg, high-temperature sodium lignosulfonate (or high-temperature lignin) simultaneously 0.4kg, graphite powder 0.01kg, fiber 0.05kg, barium sulfate 0.5kg, humic acid 0.6kg, carbon black 0.25kg, stir the above materials evenly, then add 10kg of purified water, after wet mixing evenly, quickly pour into The density is 1.400g / cm 3 (25°C) sulfuric acid solution 10kg, during the mixing process, control the temperature of the paste below 65°C, keep it for 10-20 minutes to react evenly, then take cooling measures, the temperature drops below 45°C, and the paste can be used.

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Abstract

The invention relates to vehicle used high-temperature lead acid battery negative pole lead plaster and a preparation method thereof, belongs to the storage battery technical field and is used for improving the high-temperature service life and the low-temperature starting capacity of the storage battery. The technical proposal is as follows: the lead plaster solid raw material comprises the following materials by the weight unit: 100 units of lead powder, 0.01 to 0.5 units of sodium lignosulfonate, 0.01 to 0.8 units of high-temperature sodium lignosulfonate, 0.01 to 1.0 unit of graphite powder, 0.03 to 0.08 units of fibre, 0.3 to 1.2 units of barium sulfate, 0.2 to 1.0 units of humic acid and 0.1 to 0.4 units of black carbon. The materials, such as the high-temperature sodium lignosulfonate and the graphite powder are added to the compounding recipe of the negative pole lead plaster, thereby the performance of the negative pole active materials is effectively improved at the high temperature by matching with the reasonable compounding recipe ratios of the added materials, the contraction is reduced, thereby the high-temperature service life and the low-temperature starting capacity of the storage battery are enhanced, particularly the high-temperature service life can be above 90 percent higher than the storage battery prepared based on a common compounding recipe.

Description

technical field [0001] The invention relates to a storage battery material and a preparation method, in particular to a high-temperature lead-acid battery negative lead paste suitable for various vehicles, belonging to the technical field of storage batteries. Background technique [0002] With the improvement of the technical level of the automobile industry, the performance requirements for lead-acid batteries are also getting higher and higher, especially at present, some vehicles have put forward requirements for batteries such as high temperature life, such as some high-end cars, put forward the following requirements for lead-acid batteries Requirements in terms of aspects: 1. Can work at a high temperature of 75°C, and have a long high-temperature life; 2. Excellent low-temperature high-current starting and discharging capabilities; 3. Long service life. According to the existing production process, the main components of the negative electrode paste formula are as fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/14H01M4/36H01M4/38H01M4/62H01M4/16
CPCY02E60/126Y02E60/10
Inventor 王军安蒋松岩刘珺
Owner FENGFAN
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