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Positive electrode lead paste for prolonging the high-temperature cycle life of a lead-acid battery and a preparation method thereof

A lead-acid battery, high-temperature cycle technology, applied in lead-acid battery electrodes, electrode manufacturing, battery electrodes, etc., can solve the problems of high temperature life fluctuation, inability to meet customer requirements, affecting the progress of products on the market, etc. Small corrosion rate, water loss rate reduction effect

Inactive Publication Date: 2019-01-22
骆驼集团蓄电池研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] At present, it has been verified many times that the high-temperature life fluctuates greatly and cannot meet customer requirements, which affects the progress of product launch on the market.

Method used

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  • Positive electrode lead paste for prolonging the high-temperature cycle life of a lead-acid battery and a preparation method thereof
  • Positive electrode lead paste for prolonging the high-temperature cycle life of a lead-acid battery and a preparation method thereof
  • Positive electrode lead paste for prolonging the high-temperature cycle life of a lead-acid battery and a preparation method thereof

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Embodiment Construction

[0039] The specific implementation manners of the present invention will be described in detail below.

[0040] A positive electrode paste for improving the high-temperature cycle life of a starter-type lead-acid battery and a preparation method thereof, characterized in that:

[0041] Positive lead paste contains by mass percentage:

[0042] Lead powder 78.2%-80.2%;

[0043] Industrial grade trilead tetroxide 2.6%-2.7%;

[0044] Short fiber 0.05%-0.06%;

[0045] PTFE emulsion 0.09%-1.00%;

[0046] Analytical pure stannous sulfate 0.02%-0.05%;

[0047] Dilute sulfuric acid 7.0%-7.5%;

[0048] Pure water 10.0%-10.5%;

[0049] Among them, the oxidation degree of lead powder is 74-88%, the specific surface area is 12000-24000cm² / g; the concentration of dilute sulfuric acid is 40-50%; the short fiber is acrylic fiber, the length is 3-6 mm, and the diameter is 8-18nm;

[0050] The preparation method comprises the following steps:

[0051] (a) According to the mass percentag...

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Abstract

The invention relates to a positive electrode lead paste for prolonging the high-temperature cycle life of a lead-acid battery and a preparation method thereof. The utility model belongs to the technical field of starting lead-acid batteries. It mainly solves the problem that the cycle life of SAE J2801 lead-acid battery is less than 15 units. The invention has main characteristics : a positive lead paste formula: lead powder comprising 78.2%-80.2%; Red Dan 2.6%-2.7%; Staple fiber 0.05%-0.06%; 0.09%-1.00% organic binder; 0.02% 0.05% Interface improver; 7.0%- 7.5%dilute sulfuric acid; 10.0%-10.5%Pure water. The invention has the characteristics of reducing the water loss rate, reducing the positive grid corrosion rate and the number of SAE J2801 cycle life test units under high-temperature environment being more than 15 units, and is mainly used for starting lead acid battery to prolong its high-temperature cycle life.

Description

technical field [0001] The invention belongs to the technical field of starter-type lead-acid batteries, and in particular relates to a positive electrode paste for improving the high-temperature cycle life of starter-type lead-acid batteries and a preparation method thereof. Background technique [0002] High temperature life and high water loss under high temperature is a key issue in the industry, and it is also the key focus and technical research work content of various battery companies, especially the flooded products used in taxis in large and medium-sized cities in the south. The high temperature life is Key indicators that can better highlight product features. [0003] By improving the interface structure between the positive electrode grid and the active material, a good electron exchange interface oxide film is formed, and the oxide film has a better protective effect on the metal, that is, this type of oxide film has the ability to slow down or prevent the meta...

Claims

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Application Information

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IPC IPC(8): H01M4/57H01M4/04H01M4/20
CPCH01M4/04H01M4/20H01M4/57Y02E60/10
Inventor 孙玉龙田振王德全史俊雷高国兴邓国强刘长来徐建刚
Owner 骆驼集团蓄电池研究院有限公司
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