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Novel circulating type marine lead-acid storage battery negative electrode lead plaster and preparation method thereof

A technology of lead-acid battery and negative electrode paste, applied in the direction of lead-acid battery, battery electrode, negative electrode, etc., can solve the problems of hindering electrolyte entry, battery capacity loss, battery failure, etc. Rapid current response and the effect of increasing the migration rate

Inactive Publication Date: 2019-10-22
ANHUI LEOCH BATTERY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The plate adopts common industrial battery plate. When this kind of battery is frequently charged and discharged, high current discharge and deep discharge, the surface of the negative electrode is easy to form coarse and chemically inert lead sulfate crystals, and a dense layer is formed on the surface of the negative electrode. It hinders the entry of the electrolyte, causing the active material inside the plate to fail to participate in the reaction, causing the loss of battery capacity, deteriorating the battery cycle performance, and eventually leading to battery failure

Method used

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  • Novel circulating type marine lead-acid storage battery negative electrode lead plaster and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0020] Weigh lead powder 70kg, short fiber 0.05k, graphite 0.12, activated carbon 0.1kg, barium sulfate 0.8kg, lignin 0.1kg, humic acid 0.3kg, stearic acid 0.03kg, deionized water 8kg, 1.325g / ml Dilute sulfuric acid 8kg.

[0021] Add graphite and activated carbon into the container, add pure water at room temperature and stir for 5-10 minutes to obtain a uniform mixture of graphite and activated carbon; then add lead powder, short fibers, graphite, barium sulfate, lignin, Humic acid and stearic acid, stirred for 10 to 20 minutes to obtain a semi-finished lead plaster; add the mixture of graphite and activated carbon to the above semi-finished lead plaster, stir for 2 to 3 minutes, add sulfuric acid while stirring, and control the temperature at 40 during the acid addition process. ~65°C, stirring for 20-30 minutes during the whole process, and controlling the apparent density of the finished lead paste product at 4.45-4.55g / cm 3 , to obtain the finished lead paste.

Embodiment 2

[0023] Weigh 80kg of lead powder, 0.07kg of short fiber, 0.15kg of graphite, 0.15kg of activated carbon, 1kg of barium sulfate, 0.13kg of lignin, 0.35kg of humic acid, 0.05kg of stearic acid, 9kg of deionized water, and 1.325g / ml Dilute sulfuric acid 9.1kg.

[0024] Add graphite and activated carbon into the container, add pure water at room temperature and stir for 5-10 minutes to obtain a uniform mixture of graphite and activated carbon; then add lead powder, short fibers, graphite, barium sulfate, lignin, Humic acid and stearic acid, stirred for 10 to 20 minutes to obtain a semi-finished lead plaster; add the mixture of graphite and activated carbon to the above semi-finished lead plaster, stir for 2 to 3 minutes, add sulfuric acid while stirring, and control the temperature at 40 during the acid addition process. ~65°C, stirring for 20-30 minutes during the whole process, and controlling the apparent density of the finished lead paste product at 4.45-4.55g / cm 3 , to obtai...

Embodiment 3

[0026] Weigh 85kg of lead powder, 1kg of short fiber, 2kg of graphite, 2kg of activated carbon, 2kg of barium sulfate, 2kg of lignin, 2kg of humic acid, 2kg of stearic acid, 12kg of deionized water, and 12kg of dilute sulfuric acid of 1.325g / ml.

[0027] Add graphite and activated carbon into the container, add pure water at room temperature and stir for 5-10 minutes to obtain a uniform mixture of graphite and activated carbon; then add lead powder, short fibers, graphite, barium sulfate, lignin, Humic acid and stearic acid, stirred for 10 to 20 minutes to obtain a semi-finished lead plaster; add the mixture of graphite and activated carbon to the above semi-finished lead plaster, stir for 2 to 3 minutes, add sulfuric acid while stirring, and control the temperature at 40 during the acid addition process. ~65°C, stirring for 20-30 minutes during the whole process, and controlling the apparent density of the finished lead paste product at 4.45-4.55g / cm 3 , to obtain the finishe...

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Abstract

The invention discloses a novel circulating type marine lead-acid storage battery negative electrode lead plaster and a preparation method thereof. The novel circulating type marine lead-acid storagebattery negative electrode lead plaster comprises the following components in parts by mass: 70-85 parts of lead powder; 0.05 to 1 part of short fiber; 0.12 to 2 parts of graphite; 0.1 to 2 parts of active carbon; 0.8 to 2 parts of barium sulfate; 0.1 to 2 parts of lignin; 0.3 to 2 parts of humic acid; 0.03 to 2 parts of stearic acid; 8 to 12 parts of deionized water; and 8-12 parts of 1.325 g / mldilute sulfuric acid. The carbon material of a negative plate is enriched on the outer layer of a pole plate, so the capacitance characteristic of the carbon material is kept, and high-current response is quick; through the graded pore structure, the migration rate of ions in the electrolyte in the negative electrode is improved, lead sulfate can be prevented from being enriched on the surface ofthe negative electrode during high-current discharge; and sulfation of the negative electrode is suppressed, so that the cycle life of frequent high-current deep discharge of the battery is prolonged.

Description

technical field [0001] The invention belongs to the technical field of lead-acid storage battery manufacturing, and in particular relates to a novel lead-acid storage battery negative electrode paste for circulation type ships and a preparation method thereof. Background technique [0002] At present, there are about 940,000 domestic fishing boats, and there are more than 1.3 million boats of various types. The main source of power for these boats is diesel generators. The cost of power generation by diesel generators is relatively high, about 2 to 2.5 yuan per kilowatt-hour. Part of the electricity generated by the generator will be stored in the battery, and the service life of the traditional marine battery is about 1.5 years. [0003] The ship's light storage system is to install the solar panel on the roof of the ship's cab, absorb the sun's light and heat energy, convert it into electrical energy, and store the electricity in the ship's battery through an intelligent c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/57H01M4/62H01M10/06
CPCH01M4/57H01M4/628H01M10/06H01M2004/021H01M2004/027Y02E60/10
Inventor 周超峰许小贺汪利民
Owner ANHUI LEOCH BATTERY TECH
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