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Lead-acid battery negative electrode paste suitable for use in ultra-low temperature environment and preparation method thereof

A technology of lead-acid battery and negative electrode paste, which is applied in the direction of lead-acid battery, battery electrodes, circuits, etc., can solve the problems of poor discharge performance and capacity performance, and cannot meet the cycle requirements of data acquisition instruments, so as to reduce capacity loss and improve Electron transfer efficiency, effect of delaying sulfate deposition

Active Publication Date: 2019-01-04
骆驼集团蓄电池研究院有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of negative electrode lead paste suitable for lead-acid battery products used in ultra-low temperature environment and its preparation method, to solve the problem of large-scale batteries (such as 120Ah products) and lead-acid batteries started by vehicles at ultra-low temperatures in the field (such as -40°C) has poor discharge performance and capacity performance, and cannot meet the requirements of the specified period of continuous work of the data acquisition instrument, so that it can meet the GJB516B standard

Method used

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  • Lead-acid battery negative electrode paste suitable for use in ultra-low temperature environment and preparation method thereof
  • Lead-acid battery negative electrode paste suitable for use in ultra-low temperature environment and preparation method thereof
  • Lead-acid battery negative electrode paste suitable for use in ultra-low temperature environment and preparation method thereof

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preparation example Construction

[0053] A negative lead paste suitable for use in an ultra-low temperature environment and a preparation method thereof, the negative lead paste comprises the following components in mass percentage:

[0054] Lead powder 81.3%-83.5%;

[0055] Lignosulfonate 0.10%-0.15%;

[0056] Short fiber 0.05%-0.08%;

[0057] Barium sulfate 0.06%-0.07%;

[0058] Humic acid 0.40%-0.45%;

[0059] Acetylene black 0.17%-0.19%;

[0060] Oak bowl extract 0.25%-0.40%;

[0061] Dilute sulfuric acid 7.0%-8.0%;

[0062] Pure water 8.5%-9.5%;

[0063] The concentration of the dilute sulfuric acid is 40-50%; the short fiber is nano-sized polyester with a length of 2-5 mm and a diameter of 5-13 nm; the barium sulfate is a particle size of 12-18 nm nano-scale barium sulfate; the oxidation degree of the lead powder is 70-80%, and the specific surface area is 8000-21000cm² / g;

[0064] The preparation method comprises the following steps:

[0065] (a) According to the composition ratio, weigh lead p...

Embodiment 1

[0087] Embodiment 1: a kind of lead-acid battery negative lead paste suitable for use in ultra-low temperature environment, comprising the following components by mass ratio:

[0088] Lead powder 100kg;

[0089] Lignosulfonate 0.1kg;

[0090] Short fiber 0.1kg;

[0091] Barium sulfate 0.9kg;

[0092] Humic acid 0.5kg;

[0093] Acetylene black 0.3kg;

[0094] Oak extract 0.4kg;

[0095] Dilute sulfuric acid 10kg;

[0096] Pure water 11kg;

[0097] The concentration of the dilute sulfuric acid is 40-50%; the short fiber is nano-sized polyester, the length is 2-5 mm, and the diameter is 5-13 nm; the barium sulfate is a particle size of 12-18 nm nano-scale barium sulfate; the oxidation degree of the lead powder is 70-80%, and the specific surface area is 8000-21000cm² / g;

[0098] The preparation method comprises the following steps:

[0099] (a) According to the composition ratio, weigh lead powder, barium sulfate, short fiber, humic acid, lignosulfonate, and acetylene bl...

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Abstract

The invention relates to a lead-acid battery negative electrode paste suitable for use in ultra-low temperature environment and a preparation method thereof, and belongs to the technical field of lead-acid batteries. It mainly solves the problem that the existing large-scale batteries (such as 120Ah products) cannot meet the requirements of the continuous working cycle of the data acquisition instrument at -40 DEG C ultra-low temperature in the field. Its main characteristics are: negative electrode lead paste formula: 81.3%-83.5% oflead powder; 0.10%-0.15% of lignosulfonate; 0.05%-0.08% of staple fibers; 0.06%-0.07% of barium sulfate; 0.40%-0.45% of humic acid; 0.17%-0.19% of acetylene black; 0.25%-0.40% of surfactant; 7.0%-8.0% of dilute sulfuric acid; and 8.5%-9.5% of pure water. The invention improves the interface structure between the grid and the active material, improves the large-current discharge performance of the large-scale battery under the ultra-low temperature environment, and is mainly used for the lead-acid battery negative electrode paste used for vehicle starting in ultra-low temperature environment.

Description

technical field [0001] The invention belongs to the technical field of lead-acid batteries, and in particular relates to a negative lead paste suitable for lead-acid battery products used in an ultra-low temperature environment and a preparation method thereof. Background technique [0002] The existing negative electrode paste formula is mainly used on small batteries with better low temperature performance, while for large batteries (such as 120Ah products) and lead-acid batteries for vehicle starting, the discharge performance and capacity performance at ultra-low temperature in the field (such as -40°C) are relatively low. Poor, unable to meet the requirements of the specified period of continuous work of the data acquisition instrument, unable to meet the GJB516B standard and other issues. [0003] A Chinese invention patent application titled "A lead-acid battery negative electrode paste that can be recycled in a low temperature environment and its preparation method (...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/57H01M4/62H01M10/06
CPCH01M4/362H01M4/57H01M4/62H01M4/628H01M10/06Y02E60/10
Inventor 孙玉龙王德全田振史俊雷张运平高国兴刘长来
Owner 骆驼集团蓄电池研究院有限公司
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