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Long-life deep cycle positive active material and preparation method thereof

A positive active material and deep cycle technology, which is applied to battery electrodes, electrical components, circuits, etc., can solve the problems of easy mudification of positive active materials, initial capacity decay, and short deep cycle life, and achieve high mechanical strength and contact resistance. Small size, good battery consistency

Inactive Publication Date: 2018-10-26
江苏海宝电池科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a new type of clean energy vehicle, electric vehicles will gradually become the inevitable direction of the development of the automotive industry. However, due to the shortcomings of ordinary lead-acid batteries, such as short deep cycle life, easy muddying of positive active materials, poor consistency, and easy initial capacity decay, it has become a limitation. Important factors for its promotion and use in the field of electric vehicles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A long-life deep cycle positive electrode active material, comprising the following components by weight: 100 Kg lead powder, 0.08 Kg polyester staple fiber, 0.1 Kg colloidal graphite, 0.5 Kg tetrabasic lead sulfate, 1.5 Kg red lead, 0.1 Kg three Bismuth oxide, 0.1 Kg polyvinylidene fluoride, 0.08 Kg antimony trioxide, 0.08 Kg stannous sulfate, 10 Kg distilled water and 8 Kg dilute sulfuric acid, the oxidation degree of lead powder is 68-78%, and the density of dilute sulfuric acid is 1.400g / ml;

[0017] The above-mentioned preparation method of a long-life deep-cycle positive electrode active material comprises the following steps:

[0018] a. Preparation of auxiliary material aqueous solution: add the colloidal graphite and stannous sulfate of the formula amount to the distilled water of the formula amount, and use a high-speed shearing machine with a rotation speed of 3500-4000r / min to cut for 5-30min, and then use the frequency at 30 -40KHz ultrasonic wave for 5-40...

Embodiment 2

[0023] A long-life deep cycle positive electrode active material, comprising the following components in parts by weight: 100 Kg lead powder, 0.2 Kg polyester staple fiber, 0.5 Kg colloidal graphite, 3 Kg tetrabasic lead sulfate, 5 Kg red lead, 0.5 Kg three Bismuth oxide, 0.5 Kg polyvinylidene fluoride, 0.2 Kg antimony trioxide, 0.2 Kg stannous sulfate, 15 Kg distilled water and 10 Kg dilute sulfuric acid, the oxidation degree of lead powder is 68-78%, and the density of dilute sulfuric acid is 1.400g / ml;

[0024] The preparation method of above-mentioned a kind of long-life deep-cycle positive electrode active material is the same as embodiment 1

[0025] The positive electrode active material of the final product prepared above can be transferred to the next process for further processing when the temperature is lower than room temperature at 20°C, paste paste, 80°C high-temperature and high-humidity curing, remove the false tab, and polish the frame to make a positive plate...

Embodiment 3

[0027] A long-life deep cycle positive electrode active material, comprising the following components by weight: 100Kg lead powder, 0.14Kg polyester staple fiber, 0.3Kg colloidal graphite, 1.75Kg tetrabasic lead sulfate, 3.25Kg red lead, 0.3Kg trioxide Bismuth, 0.3Kg polyvinylidene fluoride, 0.14Kg antimony trioxide, 0.14Kg stannous sulfate, 12.5Kg distilled water and 9Kg dilute sulfuric acid, the oxidation degree of lead powder is 68-78%, and the density of dilute sulfuric acid is 1.400g / ml;

[0028] The preparation method of above-mentioned a kind of long-life deep-cycle positive electrode active material is the same as embodiment 1

[0029] The positive electrode active material of the final product prepared above can be transferred to the next process for further processing when the temperature is lower than room temperature at 20°C, paste paste, 80°C high-temperature and high-humidity curing, remove the false tab, and polish the frame to make a positive plate. Finally, ...

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Abstract

The invention discloses a long-life deep cycle positive active material and a preparation method of the material. The material comprises the following components by weight: 100 parts of lead powder, 0.08 to 0.2 parts of polyester staple fiber, 0.1 to 0.5 aquadag, 0.5 to 3 parts of tetrabasic lead sulfate, 1.5 to 5 parts of red lead, 0.1 to 0.5 parts of antimony trioxide, 0.1 to 0.5 part of polyvinylidene fluoride, 0.08 to 0.2 parts of antimony trioxide, 0.08 to 0.2 parts of stannous sulfate, 10 to 15 parts of distilled water and 8 to 10 parts of dilute sulfuric acid. The material and the preparation method of the invention has the advantages that compared with the common battery, the battery further processed and prepared by the material and preparation method of the invention is high in pole plate mechanical strength, good in battery consistency, small in contact resistance of the active material grid and long in deep cycle lifetime of the battery.

Description

technical field [0001] The invention relates to the field of battery production, in particular to a long-life deep-cycle cathode active material and a preparation method thereof. Background technique [0002] Facing the depletion of traditional energy sources and the continuous deterioration of the global environment, the demand for the utilization of clean energy and energy-saving products is becoming more and more urgent. As a new type of clean energy vehicle, electric vehicles will gradually become the inevitable direction of the development of the automotive industry. However, due to the shortcomings of ordinary lead-acid batteries, such as short deep cycle life, easy muddying of positive active materials, poor consistency, and easy initial capacity decay, it has become a limitation. It is an important factor for its promotion and use in the field of electric vehicles. Therefore, improving battery consistency and deep cycle life has always been the technical focus of el...

Claims

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Application Information

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IPC IPC(8): H01M4/57
CPCH01M4/57Y02E60/10
Inventor 杨海涛沈维新
Owner 江苏海宝电池科技有限公司
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