Long-life silicon-based bipolar lead storage battery positive electrode lead paste and preparation method thereof

A technology for lead-acid batteries and positive electrode paste, which is applied to batteries with bipolar electrodes, lead-acid batteries, battery electrodes, etc., and can solve problems such as poor corrosion resistance of lead-calcium alloys, limited use of strength, softening and falling off of lead paste, etc. , to achieve the effect of simple preparation method, ensuring the quality of lead paste, and improving the bonding strength

Inactive Publication Date: 2020-12-29
ANHUI LEOCH POWER SUPPLY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the lightweight of the grid and its active materials has become a key technology researched by all battery manufacturers in the world, but due to the limitations of the battery itself, it is difficult to advance this work
[0003] At present, maintenance-free valve-regulated batteries in the industry generally use lead-calcium series alloys to make grids, but lead-calcium alloys have poor corrosion resistance, so it is necessary to find better alternative materials. Some manufacturers use lead-plated plastic grids. method to replace the lead grid, but due to the defects of the industrial manufactu

Method used

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  • Long-life silicon-based bipolar lead storage battery positive electrode lead paste and preparation method thereof

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Embodiment 1

[0026] Long-life silicon-based bipolar lead storage battery positive electrode paste, the positive electrode paste formula includes the following components: lead powder, short fibers, graphite powder, SnSO 4 、Ti 4 o 7 , Sb 2 o 3 , 4PbO·PbSO 4 , sodium perborate, dilute sulfuric acid, deionized water; short fiber is 0.5% of the weight of lead powder, graphite powder is 2% of the weight of lead powder, Sb 2 o 3 0.03% of lead powder weight, 4BS 0.5% of lead powder weight, SnSO 4 0.03% of the weight of lead powder, Ti 4 o 7 0.1% of the weight of the lead powder, deionized water is 9% of the weight of the lead powder, dilute sulfuric acid is 8% of the weight of the lead powder, sodium perborate is 0.01% of the weight of the lead powder, and the balance is the lead powder.

[0027] The density of the dilute sulfuric acid is 1.325~1.400g / cm 3 The oxidation degree of the described lead powder is 72%, the content of iron, manganese, copper and chlorine in the described lead p...

Embodiment 2

[0033] Long-life silicon-based bipolar lead storage battery positive electrode paste, the positive electrode paste formula includes the following components: lead powder, short fibers, graphite powder, SnSO 4 、Ti 4 o 7 , Sb 2 o 3 , 4PbO·PbSO 4 , sodium perborate, dilute sulfuric acid, deionized water; short fiber is 1.5% of the weight of lead powder, graphite powder is 5% of the weight of lead powder, Sb 2 o 30.1% of the weight of lead powder, 4PbO·PbSO 4 1.5% by weight of lead powder, SnSO 4 0.1% by weight of lead powder, Ti 4 o 7 0.3% of the lead powder weight, deionized water is 11% of the lead powder weight, dilute sulfuric acid is 12% of the lead powder weight, sodium perborate is 0.03% of the lead powder weight, and the balance is lead powder.

[0034] The density of the dilute sulfuric acid is 1.325~1.400g / cm 3 The oxidation degree of the described lead powder is 72%, the content of iron, manganese, copper and chlorine in the described lead powder is lower tha...

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Abstract

The invention discloses a long-life silicon-based bipolar lead storage battery positive electrode lead paste and a preparation method thereof. The positive electrode lead paste formula comprises the following components: lead powder, short fibers, graphite powder, SnSO4, Ti4O7, Sb2O3, 4PbO.PbSO4, sodium perborate, dilute sulfuric acid and deionized water. The preparation method comprises the steps: S1, uniformly dispersing graphite powder, 4PbO.PbSO4, SnSO4, Ti4O7, Sb2O3, sodium perborate materials and the short fibers into lead powder during preparation of lead paste, and carrying out dry stirring for 5 minutes until the materials are uniformly mixed, so as to prepare a premix 1; S2, quickly adding deionized water into the premix 1, and stirring for 10 minutes until the deionized water and the premix 1 are uniformly mixed, so as to obtain a premix 2; S3, slowly adding dilute sulfuric acid into the premix 2, controlling the adding time to be 10 min and the mixing temperature to be 70 DEG C, continuously stirring for 10 min, cooling to 50 DEG C, measuring the apparent density, and controlling the apparent density to be 4.45+/-0.1 g/cm<3>. According to the invention, the electric conductivity of the lead paste can be obviously improved, the softening and falling of the lead paste can be effectively delayed, and the cycle life cycle is prolonged.

Description

technical field [0001] The invention belongs to the technical field of lead-acid accumulators, in particular to the anode lead paste of long-life silicon-based bipolar lead accumulators. Background technique [0002] With the increasingly fierce competition in the lead-acid battery industry, and the increasingly high requirements for the battery at the same time, coupled with the impact of iron-lithium batteries on the battery industry, this requires battery manufacturers to continuously improve production processes and technologies, and create new products. Control manufacturing costs. Among them, the lightweight of the grid and its active materials has become a key technology researched by all battery manufacturers around the world, but due to the limitations of the battery itself, it is difficult to advance this work. [0003] At present, maintenance-free valve-regulated batteries in the industry generally use lead-calcium series alloys to make grids, but lead-calcium al...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/57H01M4/62H01M10/18
CPCH01M4/36H01M4/57H01M4/62H01M4/624H01M4/628H01M10/18Y02E60/10
Inventor 张树祥豆江洪侯娜娃张波
Owner ANHUI LEOCH POWER SUPPLY
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