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A lead plaster for negative electrode of battery

A negative lead paste, battery technology, applied in battery electrodes, lead-acid batteries, circuits, etc., can solve problems such as poor charging performance

Inactive Publication Date: 2018-12-18
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, technical indicators such as low-temperature performance and charge acceptance are related to the negative plate of the lead-acid battery. The main reasons for the negative electrode to affect the discharge efficiency are the shrinkage of the specific surface area of ​​the negative electrode, passivation of the negative electrode, and poor charging performance at low temperatures.

Method used

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  • A lead plaster for negative electrode of battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Barton-style lead powder 71 parts; density 1.255g / cm 3 10 parts of sulfuric acid; 10 parts of water; 1 part of short chemical fiber with a length of 5mm; 2 parts of sodium polyaspartate with a purity of 98%; 2.5 parts of carbon nanotubes; 1 part of zinc oxide; 0.5 part of humic acid, 0.5 parts of acetylene black, 1 part of barium sulfate, and 0.5 parts of sodium lignosulfonate.

Embodiment 2

[0016] 75 parts of lead powder; 7 parts of sulfuric acid; 8 parts of water; 1 part of short fiber; 1 part of sodium polyaspartate; 0.5 parts of carbon nanotubes; 1 part of barium sulfate, 0.5 part of sodium lignosulfonate.

Embodiment 3

[0018] 85 parts of lead powder; 7 parts of sulfuric acid; 5.6 parts of water; 0.3 parts of short fiber; 0.3 parts of sodium polyaspartate; 0.3 parts of carbon nanotubes; 0.3 parts of barium sulfate, 0.3 parts of sodium lignosulfonate.

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Abstract

The invention relates to the field of lead-acid batteries, in particular to lead plaster for a negative electrode of a battery, comprising the following components in weight fraction: 70 to 85 parts of lead powder, 7 to 15 parts of sulfuric acid, 5 to 20 parts of water , staple 0.3 to 1 part, 0.3 part of polyaspartate sodium to 5 part, carbon nanotubes 0.3 to 10 part of zinc compound, 0.3 to 10 part, humic acid 0.3 to 0.7 part, acetylene black 0.3 to 0.5 part, barium sulfate 0.3 to 2 part, sodium lignosulfonate 0.3 to 0.5 part. The negative electrode lead paste obtained by the invention has the advantages of long cycle life, high charging and discharging efficiency and stable performance of the battery with the negative electrode, good hydrogen evolution inhibition effect of the negative electrode and good low-temperature charging and discharging performance.

Description

technical field [0001] The invention relates to the field of lead-acid storage batteries, in particular to a battery negative electrode paste. Background technique [0002] Lead-acid batteries have a history of more than 100 years since they came out. Due to a series of advantages such as low price, high safety in use, long life, and good performance, it has an advantage in chemical power sources. With the rapid development of the electric bicycle industry, higher technical requirements are put forward for the lead-acid batteries used in electric mopeds. Among them, technical indicators such as low-temperature performance and charge acceptance are related to the negative plate of the lead-acid battery. The main reasons for the negative electrode to affect the discharge efficiency are the shrinkage of the specific surface area of ​​the negative electrode, passivation of the negative electrode, and poor charging performance at low temperatures. Usually, the improvement of the...

Claims

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Application Information

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IPC IPC(8): H01M4/57H01M4/62H01M10/06B82Y30/00
CPCB82Y30/00H01M4/57H01M4/625H01M4/628H01M10/06Y02E60/10
Inventor 吴鑫项晨王江林代少振
Owner CHAOWEI POWER CO LTD
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