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Lead-carbon battery positive electrode lead plaster added with electroconductive glass fiber

A technology of conductive glass fiber and positive lead paste, applied in lead-acid battery electrodes, battery electrodes, circuits, etc., can solve the problems of short cycle life and fast softening of active materials, and achieve long battery life, improve bonding strength, and improve The effect of utilization

Inactive Publication Date: 2016-03-16
TIANNENG GRP JIANGSU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a lead-carbon battery anode lead paste with conductive glass fiber added, which solves the problem of the prior art anode lead paste with graphite material added. , the self-expansion of graphite leads to the problem of fast softening of the active material and short cycle life

Method used

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  • Lead-carbon battery positive electrode lead plaster added with electroconductive glass fiber
  • Lead-carbon battery positive electrode lead plaster added with electroconductive glass fiber
  • Lead-carbon battery positive electrode lead plaster added with electroconductive glass fiber

Examples

Experimental program
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Effect test

Embodiment 1

[0019] (1) Preparation of tin antimony oxide layer: Add citric acid to ethylene glycol under stirring and react at 55-65°C for about 30 minutes to obtain an alcohol solution of ethylene glycol citrate, raise the temperature to 85-95°C, and then Add SnCl4·5H2O and SbCl3 metal salt, fully stir and dissolve for about 30 minutes, and obtain tin-antimony polymerization precursor solution (in light yellow transparent viscous liquid). The mol ratio of the citric acid, ethylene glycol molar total and metal salt is 3:14. The molar ratio of citric acid and ethylene glycol can be 1:1-1.5 (the molar ratio selected in this embodiment is 1:1), and the molar ratio of SnCl4·5H2O to SbCl3 is 9:1.

[0020] (2) Preparation of conductive glass fiber: According to the ratio of 150ml precursor / 100g fiber, the glass fiber with a length of 2mm~5mm and a single fiber fineness of 1.5D~3D is evenly mixed with the tin-antimony polymerization precursor solution (so that the fiber surface Just coat the pr...

Embodiment 2

[0028] (3) Preparation of positive lead paste: In terms of the percentage of lead powder weight, the following substances account for the weight of lead powder: 0.2% of stannous sulfate, 0.15% of antimony trioxide, 0.8% of conductive glass fiber, and a density of 1.40g / mL 8.5% sulfuric acid, 11.5% deionized water. All the other implementations are as in Example 1. The results of the test battery performance are shown in Table 2.

[0029] For the common battery used for comparison in Table 2, except that the conductive glass fiber is replaced by 0.8% graphite in the positive plate lead paste, all the other components and proportioning are as in Example 2, and the negative plate is the used plate of a conventional lead-acid battery. For the lead-carbon battery used for comparison in Table 2, the positive plate is the same as the above-mentioned common battery, and the negative plate is a lead-carbon plate (same as Example 1).

[0030] Table 2

[0031]

[0032] It can be se...

Embodiment 3

[0034] (3) Preparation of positive lead paste: Calculated as a percentage of the weight of lead powder, the following substances account for the weight of lead powder: 0.2% of stannous sulfate, 0.15% of antimony trioxide, 0.6% of conductive glass fiber, and 0.2% of graphite, with a density of 1.40g / mL sulfuric acid 8.5%, deionized water 11.5%. All the other implementations are as in Example 1. The test battery performance results are shown in Table 3.

[0035] For the common battery used for comparison in Table 3, except that the conductive glass fiber is replaced by 0.6% graphite in the positive plate lead paste, all the other components and proportioning are as in Example 3, and the negative plate is the used plate of a conventional lead-acid battery. For the lead-carbon battery used for comparison in Table 2, the positive plate is the same as the above-mentioned common battery, and the negative plate is a lead-carbon plate (same as Example 1).

[0036] table 3

[0037] ...

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Abstract

The invention discloses a lead-carbon battery positive electrode lead plaster added with electroconductive glass fiber, composed of the following constituents in percentage by weight of lead powder: 0.1-0.4% of stannous sulfate, 0.05-0.3% of antimonous oxide, 0.1-1.0% of electroconductive glass fiber, 0-0.2% of graphite, 8.0-10.0% of sulfuric acid with density of 1.40g / mL, and 10.0-15.0% of deionized water. According to the invention, the electroconductive glass fiber partly or completely replaces graphite material, and is directly mixed with the lead powder, thus, electrical conductivity of positive electrode active substance is improved, oxygen precipitation of the positive electrode can be reduced, utilization rate of the positive electrode active substance is improved, battery service life is prolonged, the lead-carbon battery positive electrode lead plaster is matched with a lead-carbon negative electrode, and integral performance of the lead-carbon battery is improved. The electroconductive glass fiber also can play a role in improvement of binding force strength of the lead plaster, and has no adverse effect on the positive electrode active substance; after the volume of addition is increased, electron conduction distance of the battery in a discharging process is shorter, reaction depth is higher, thus, battery capacity, charging receptivity and rate discharge performance are improved markedly.

Description

technical field [0001] The invention relates to a lead-carbon storage battery, in particular to a positive lead paste of a lead-carbon battery. Background technique [0002] Lead-carbon batteries are made by adding more high-specific surface area carbon materials to the negative electrodes of lead-acid batteries than traditional batteries, and mixing them to make lead-carbon negative electrodes. The conductivity of high specific surface area carbon materials and the dispersibility of lead-based active materials are used to inhibit sulfuric acid. Growth and deactivation of lead crystals. At the same time, due to the capacitive characteristics of carbon materials, in the process of high-current charging and discharging, the capacitor is charged and discharged before the battery, thereby protecting the battery and prolonging the cycle life of the battery under high-current charging and discharging conditions. At the same time, due to The excellent electrical conductivity of th...

Claims

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Application Information

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IPC IPC(8): H01M4/56H01M4/57H01M4/16H01M4/62
CPCH01M4/16H01M4/56H01M4/57H01M4/624Y02E60/10
Inventor 陈飞陈红雨王殿龙张慧舒东高爱梅易芬云赵力
Owner TIANNENG GRP JIANGSU TECH
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