Internalization into battery cathode lead paste composition

A battery positive electrode and composition technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as large sewage, battery capacity decay, and inability to use

Active Publication Date: 2016-01-13
HENAN CHAOWEI POWER SUPPLY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this lead-antimony-cadmium externalized battery are as follows: 1. Since the plates are charged, rinsed and dried before assembly during the externalized formation of the battery, a large amount of sewage and dust are generated; 2. The grid alloy of the externalized battery contains cadmium , and cadmium is a toxic metal banned by the country. In recent years, the country has paid more and more attention to environmental pollution. Therefore, it is required that the external chemical process must be transformed into internal chemical process, and metals containing cadmium cannot be used.
However, this lead-calcium internalization battery also has a fatal flaw: a high-resistance layer, namely calcium sulfate, is formed at the interface between the grid and the lead paste, which easily causes early fading of the battery capacity

Method used

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  • Internalization into battery cathode lead paste composition

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Experimental program
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Effect test

Embodiment 1

[0026] In this embodiment, the positive lead paste composition of internalized battery is made of the following raw materials in parts by weight: 1000 parts of lead powder, 1 part of fiber, 0.75 part of phosphoric acid, 1.5 parts of antimony trioxide, 1 part of zinc oxide, and 1 part of aluminum sesquioxide. 0.6 parts of ammonium bicarbonate, 0.4 parts of cerium hydroxide, 1.1 parts of tin oxide, 120 parts of water, and 85 parts of dilute sulfuric acid.

[0027] The density of dilute sulfuric acid is 1.40g / cm 3 ; The apparent density of the lead paste composition is 4.4g / cm 3 .

[0028] Table 1 is a comparison of the technical indicators of the electric vehicle lead-acid battery made of the lead paste of this embodiment (taking 6DZM12 battery as an example). The results show that: the conventional electric bicycle battery can be deeply discharged for 300 cycles, while the lead Batteries made of paste can be improved to 350 times.

[0029]

Embodiment 2

[0031] In this embodiment, the positive lead paste composition of the internalized battery is made of the following raw materials in parts by weight: 990 parts of lead powder, 1.5 parts of fiber, 0.5 part of phosphoric acid, 2 parts of antimony trioxide, 0.7 part of zinc oxide, and 1.5 parts of aluminum sesquioxide. 0.5 parts of ammonium bicarbonate, 0.5 parts of cerium hydroxide, 0.7 parts of tin monoxide, 130 parts of water, and 80 parts of dilute sulfuric acid.

[0032] The density of dilute sulfuric acid is 1.45g / cm 3 ; The apparent density of the lead paste composition is 4.2g / cm 3 .

Embodiment 3

[0034] In this embodiment, the positive lead paste composition of the internalized battery is made of the following raw materials in parts by weight: 1010 parts of lead powder, 0.5 part of fiber, 1 part of phosphoric acid, 1 part of antimony trioxide, 1.2 parts of zinc oxide, and 0.5 part of aluminum sesquioxide. 0.8 parts of ammonium bicarbonate, 0.3 parts of cerium hydroxide, 1.5 parts of tin oxide, 110 parts of water, and 90 parts of dilute sulfuric acid.

[0035] The density of dilute sulfuric acid is 1.35g / cm 3 ; The apparent density of the lead paste composition is 4.6g / cm 3 .

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Abstract

The invention belongs to the technical field of accumulators, and in particular relates to a lead paste composition internalized into a positive electrode of a battery. The internalized battery cathode lead paste composition of the present invention is made of the following raw materials in parts by weight: 990-1010 parts of lead powder, 0.5-1.5 parts of fiber, 0.5-1.0 parts of phosphoric acid, 1-2 parts of antimony trioxide, and 0.7 parts of zinc oxide. ~1.2 parts, 0.5~1.5 parts of aluminum oxide, 0.5~0.8 parts of ammonium bicarbonate, 0.3~0.5 parts of cerium hydroxide, 0.7~1.5 parts of tin oxide, 110~130 parts of water, 80~90 parts of dilute sulfuric acid. The invention improves the anode lead paste composition so as to suppress the early stage capacity decay of the internalized battery and prolong the service life of the deep cycle discharge of the battery.

Description

technical field [0001] The invention belongs to the technical field of accumulators, and in particular relates to a lead paste composition internalized into a positive electrode of a battery. Background technique [0002] Batteries can be divided into internal formation and external formation. The grid used for external formation contains antimony and cadmium, and the grid used for internal formation contains calcium. During the external formation process, the charge formation time is short, and the formation of the plates is complete. In addition, the formation of the plates can also be visually judged and screened. The role of antimony and cadmium in the grid is: antimony can increase the strength of the grid, which is beneficial to the filling of lead paste without deformation, and cadmium is a compensation for the corrosion resistance of antimony, so the plate containing this alloy has good corrosion resistance. The adhesive force between the paste and the grid is stron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/57H01M4/62
CPCH01M4/57H01M4/62Y02E60/10
Inventor 李松林柴成雷
Owner HENAN CHAOWEI POWER SUPPLY
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