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High-temperature valve-regulated lead-acid battery and preparation method thereof

A technology for lead-acid batteries and batteries, applied in the direction of lead-acid batteries, lead-acid battery construction, secondary batteries, etc., can solve the problems of accelerated corrosion of positive electrodes, accelerated sulfation of negative electrodes, and aggravated oxygen recombination of negative electrodes, etc. Effects of decomposition and battery self-discharge, reduction of negative electrode shrinkage, and improvement of porosity

Active Publication Date: 2019-10-29
ZIBO TORCH ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of communication, there are more than 1.2 million communication base stations in my country, and the energy consumption of air conditioners in the energy consumption of base stations accounts for 50%. Every 10°C increase in the temperature of the battery can reduce the power consumption of air conditioners by more than 60%. , how to reduce air conditioning energy consumption? The key depends on the high temperature resistance of the battery. For batteries used under normal temperature conditions, due to the increase in ambient temperature, the oxygen evolution of the positive electrode will be accelerated, causing the oxygen recombination of the negative electrode to intensify. At the same time, the negative electrode is oxidized to make it long-term undercharged , to accelerate the sulfation of the negative electrode, while the positive electrode is in an overcharged state, resulting in accelerated corrosion of the positive electrode and premature failure of the active material. Therefore, it is necessary to develop a new type of high temperature resistant valve-regulated lead-acid battery for the above reasons of battery failure due to high temperature.

Method used

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  • High-temperature valve-regulated lead-acid battery and preparation method thereof
  • High-temperature valve-regulated lead-acid battery and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The high-temperature valve-regulated lead-acid battery described above,

[0049] The positive electrode grid alloy components are: Ca0.08%, Sn1.4%, Al0.02%, Ag0.01%, La0.01%, Ce0.01%, Pb as the balance;

[0050] Negative electrode grid alloy adopts lead-calcium-tin-aluminum alloy;

[0051] The main components of the positive active material are: 4BS0.5%, red lead 5%, Bi 2 o 3 0.02%, Lu 2 o 3 0.01%, Na 2 SO 4 0.5%, 1% polypropylene staple fiber, 12% sulfuric acid, 8% battery water, and Barton lead powder as the balance;

[0052] The main components of the negative electrode active material are: Norwegian lignin 0.2%, sodium 2-naphthalene sulfonate 0.3%, ultra-fine barium sulfate 0.3%, Cabot carbon black 0.2%, β-naphthol 0.2%, sulfuric acid 10%, battery 6% water and Barton lead powder as the balance;

[0053] Its preparation method is as follows:

[0054] a) Positive grid casting: First, put 30% lead-calcium-aluminum alloy into the alloy pot, heat up to 420°C±20°...

Embodiment 2

[0061] The high-temperature valve-regulated lead-acid battery described above,

[0062] The positive electrode grid alloy components are: Ca0.1%, Sn1.6%, Al0.03%, Ag0.05%, La0.05%, Ce0.05%, Pb as the balance;

[0063] Negative electrode grid alloy adopts lead-calcium-tin-aluminum alloy;

[0064] The main components of the positive active material are: 4BS2%, red lead 25%, Bi 2 o 3 0.08%, Lu 2 o 3 0.04%, Na 2 SO 4 1.0%, 1% polypropylene staple fiber, 15% sulfuric acid, 10% battery water, and Barton lead powder as the balance;

[0065] The main components of the negative electrode active material are: Norwegian lignin 0.8%, sodium 2-naphthalenesulfonate 0.6%, ultra-fine barium sulfate 0.6%, Cabot carbon black 0.5%, β-naphthol 0.5%, sulfuric acid 12%, battery Water 8%, Barton lead powder is the balance.

[0066] Its preparation method is as follows:

[0067] a) Positive grid casting: First, put 40% lead-calcium-aluminum alloy into the alloy pot, heat up to 580°C±20°C, af...

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Abstract

The invention belongs to the technical field of lead storage batteries, and in particular relates to a high-temperature valve-regulated lead-acid storage battery and a preparation method thereof. In the high-temperature valve-regulated lead-acid battery, the positive electrode grid alloy adopts a high-tin alloy and adds La, Ce and Ag metal elements; the positive electrode active material adds 4BS, Bi 2 o 3 、Lu 2 o 3 and Na 2 SO 4 Add 2 Naphthalene Sulfonate Sodium, Cabot Carbon Black and β Naphthol in the negative electrode active material; Add stannous sulfate and ammonium sulfate in the electrolyte. The high-temperature valve-regulated lead-acid battery of the present invention enhances the corrosion resistance of the positive electrode grid under high temperature environment, shortens the aging hardening speed of the grid, enhances the strength of the active material of the positive electrode, reduces the shrinkage of the negative electrode, improves the conductivity of the active material, and enhances charging. High efficiency, so that the service life of the battery in the environment of 50°C to 70°C is about 1.5 times longer than that of the existing battery; the preparation method is scientific, reasonable, simple and easy to implement.

Description

technical field [0001] The invention belongs to the technical field of lead storage batteries, and in particular relates to a high-temperature valve-regulated lead-acid storage battery and a preparation method thereof. Background technique [0002] With the rapid development of communication, there are more than 1.2 million communication base stations in my country, and the energy consumption of air conditioners in the energy consumption of base stations accounts for 50%. Every 10°C increase in the temperature of the battery can reduce the power consumption of air conditioners by more than 60%. , how to reduce air conditioning energy consumption? The key depends on the high temperature resistance of the battery. For batteries used under normal temperature conditions, due to the increase in ambient temperature, the oxygen evolution of the positive electrode will be accelerated, causing the oxygen recombination of the negative electrode to intensify. At the same time, the negat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/73H01M10/12
CPCH01M4/73H01M10/121Y02E60/10Y02P70/50
Inventor 王玉莹陈龙霞唐胜群李敏单颖会马玉竹崔琳张涛
Owner ZIBO TORCH ENERGY
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