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Colloid lead-acid storage battery cathode lead plaster for electric power assisted vehicle and preparation method

A lead-acid battery, electric moped technology, applied in lead-acid battery electrodes, battery electrodes, circuits, etc., can solve problems such as insufficient charging and reducing battery charging acceptance performance.

Active Publication Date: 2011-01-05
FENGFAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the structure of wood sodium has a strong influence on the overpotential of hydrogen, it will reduce the charge acceptance performance of the battery, and the problem of insufficient charging often occurs when used in valve-regulated lead-acid batteries.

Method used

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  • Colloid lead-acid storage battery cathode lead plaster for electric power assisted vehicle and preparation method
  • Colloid lead-acid storage battery cathode lead plaster for electric power assisted vehicle and preparation method
  • Colloid lead-acid storage battery cathode lead plaster for electric power assisted vehicle and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: the lead powder that 100kg PbO content is 75%~85% is added in the plaster mixing machine, add the fiber of 0.03kg, the acetylene carbon black of 0.1kg, the analytical pure barium sulfate of 1.1kg crossing 80 mesh sieves, 0.1 kg sodium lignosulfonate, 0.2kg humic acid, and 0.1kg polyethylene glycol, put the above materials into the paste mixing machine for dry mixing, stir evenly, then add 12kg pure water, after wet mixing evenly, quickly The pouring density is 1.400g / cm 3 (25°C) sulfuric acid solution 8kg, control the temperature of the paste to be lower than 65°C during the paste process, the reaction is uniform and the temperature drops below 45°C, and the paste is used.

Embodiment 2

[0024] Embodiment 2: the lead powder that 100kg PbO content is 75%~85% is added in the plaster mixing machine, add the fiber of 0.06kg, the acetylene carbon black of 0.5kg, the analytical pure barium sulfate of 1.2kg crossing 80 mesh sieves, 0.2 kg sodium lignosulfonate, 0.1kg of humic acid, and 0.15kg of polyethylene glycol, put the above materials into the paste machine for dry mixing, stir evenly, then add 12.5kg of pure water, after wet mixing evenly, The rapid pouring density is 1.400g / cm 3 (25°C) sulfuric acid solution 8.5kg, control the temperature of the paste to be lower than 65°C during the paste process, the reaction is uniform and the temperature drops below 45°C, and the paste is used.

Embodiment 3

[0025] Embodiment 3: the lead powder that 100kg PbO content is 75%~85% is added in the plaster mixer, adds the fiber of 0.04kg, the acetylene carbon black of 0.4kg, the analytical pure barium sulfate of 1.3kg crossing 80 mesh sieves, 0.15 kg sodium lignosulfonate, 0.15 kg of humic acid, and 0.3 kg of polyethylene glycol, put the above materials into the paste machine for dry mixing, stir evenly, then add 13 kg of pure water, after wet mixing evenly, quickly The pouring density is 1.400g / cm 3 (25°C) sulfuric acid solution 8.7kg, during the mixing process, control the temperature of the paste to be lower than 65°C, the reaction is uniform and the temperature drops below 45°C, and the paste is used.

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Abstract

The invention relates to a colloid lead-acid storage battery cathode lead plaster for an electric power assisted vehicle and a preparation method, aiming to improve the 2hr capacity and the low-temperature capacity at -15 DEG C of a storage battery and prolong the service life. Raw materials of the lead plaster contain the following substances in parts by weight: 100 parts of lead powder, 0.03-0.06 part of fiber, 0.1-0.5 part of acetylene carbon black, 1.0-1.3 part of barium sulfate, 0.1-0.2 part of sodium lignosulphonate, 0.1-0.3 part of humic acid and 0.1-0.3 part of polyethylene glycol. Proved by repeated research trials, the lead plaster integrates the characteristics of strong low-temperature capacity of the sodium lignosulphonate and strong charge receptivity of the humic acid; meanwhile, the use of a colloid electrolyte is considered, and the polyethylene glycol is added to the lead plaster raw materials; through tests, the optimal proportions of all raw material components are determined so as to form a novel cathode mixed organic expanding agent, thereby the 2hr capacity, the low-temperature capacity at -15 DEG C, the cycle life, the charge receptivity and the water retention capacity of the storage battery are guaranteed, and the problem of low-temperature property attenuation of the sodium lignosulphonate is solved.

Description

technical field [0001] The invention relates to a storage battery material and a preparation method, in particular to a colloidal lead-acid battery negative lead paste for an electric bicycle and a preparation method thereof, belonging to the technical field of storage batteries. Background technique [0002] Electric bicycles, electric tricycles and other electric mopeds are currently the most common means of transportation in ordinary households in cities. With the rapid development of the electric moped market, the requirements for the 2hr capacity, cycle life, -15°C low temperature and charging acceptance performance of electric vehicle batteries are getting higher and higher. come higher. The working principle of double sulfation of valve-regulated sealed lead-acid batteries is basically the same as that of ordinary flooded lead-acid batteries. The differences are: 1. Valve-regulated batteries work at a lower charging voltage; Based on the principle of oxygen cycle, th...

Claims

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Application Information

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IPC IPC(8): H01M4/62H01M4/14H01M4/20
CPCY02E60/126Y02E60/10
Inventor 郭志刚张利芳王丽班涛伟王建忠翟羽
Owner FENGFAN
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