JPS59194367A - Function recovery agent of storage battery and its method - Google Patents

Abstract

PURPOSE:To quickly recover the function of a storage battery and to keep good performance by adding bis-beta-ethylcarboxylicgermaniumsesquioxide to electrolyte of a lead-acid battery. CONSTITUTION:Bis-beta-ethylcarboxylicgermaniumsesquioxide is added to electrolyte of a lead-acid battery. By adding this compound, a harmful influence by hydrogen and sulfation are prevented, and polarization of Pb electrode and PbO2 electrode in charging is decreased, and voltage required in charge is lowered. Since polarization of both electrodes is low, discharge voltage is high and kept for a long time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a function recovery agent that can be added to the electrolyte of a storage battery (nocentary) to clean the electrode plates and rapidly recover degraded performance, and a function recovery method using the same. It is related to.

As is well known, a storage battery has an e electrode (cathode) and a ■ electrode (anode).
It consists of two polar terminals, and can be stored by converting the stain energy into chemical energy through electrolysis, and when necessary, converts the chemical energy into electric energy again. It is a device that emits water.

Dilute sulfuric acid is usually used as the electrolytic solution, and its specific gravity is, for example, 1.200 to 1.300 for automobile storage batteries. The best condition for conducting electricity is 1.260 at +20°C, and as the discharge progresses, the specific gravity decreases, and the specific gravity averages 1.050 when a fully discharged state is reached. In addition, when charging is completed, the original specific gravity is 1.260.
become.

The O electrode is crystal (Pb), and the ■ electrode is lead oxide (PbO,).
In the discharge state, the current flows from the ■ pole to the O pole, and in the charged state, the current flows from the θ pole to the ■ pole.

The chemical action inside the storage battery is that during discharge, the e-electrode is lead sulfate (P).
bSO41, and (1) the electrode is also replaced by lead sulfate, and the sulfuric acid in the electrolyte is converted to water by electrolysis. During charging, the electrodes change back to their original e-electrode lead and ■-electrode lead oxide, and the electrolyte returns from water to its original dilute sulfuric acid.

Although storage batteries should be able to be used indefinitely based on this charging/discharging principle, the following four major weaknesses are inevitable:

1) Hydrogen adverse effects ii) Sulfation (formation of lead sulfate (PbSO4) white nonconductor) 111) Self-discharge + v) Temperature changes and their effects Of these, 1) "Hydrogen adverse effects" are the biggest weakness of storage batteries. . When a storage battery is charged, electrolysis occurs and hydrogen gas is produced at the e-electrode, and oxygen gas is produced at the -electrode. When hydrogen adheres to the surface of the electrode in the form of bubbles, the surface undergoes a polarization phenomenon and becomes insulating, and when it completely adheres, no current flows at all.

"Sulfation" (n) is a phenomenon in which when the electrode plates are exposed from the liquid surface and discharge occurs, both the lead in the ○ electrode and the lead oxide in the ■ electrode become lead sulfate. When a storage battery is completely discharged, sulfation occurs, and since lead sulfate is a nonconductor, it no longer conducts electricity and cannot be charged at all. This sulfation is a phenomenon that occurs in more or less all storage batteries, and even a storage battery that originally had an electromotive force of 100 cm loses power significantly and the specific gravity of dilute sulfuric acid decreases. Once the lead sulfate is formed inside the battery, it cannot be removed no matter how much you charge it.

``Self-discharge'' in 111) is a phenomenon in which, as in ti), when hydrogen is generated and adheres to the electrode, a polarization phenomenon occurs, thereby creating one half-cell, and therefore K discharges itself more and more.

+V) "Temperature change and its effects" is caused by external temperature conditions, and the electrolyte (dilute sulfuric acid) of the storage battery is
The specific gravity is set to 1.260 at 20°C, and the specific gravity changes by 0.007 per 1°C. Therefore, when the storage battery T% has an electromotive force of 100% at +20°C -10°C, the electromotive force decreases to 70%.

Among the four weaknesses of storage batteries in the above work 9, l) Hydrogen adverse effects;
11) Sulfation and sulphation accompanying i) 111)
There is a possibility that this problem can be solved by self-discharge line chemical method.

The present inventors have discovered that organic germanium compounds, especially nibi-β
- Focusing on the fact that kermanium ethercarzenate sesquioxide is a compound that has a unique electronic effect and a strong ability to supply oxygen, we have conducted intensive studies to utilize this property to restore the performance of storage batteries, and as a result, we have found that it is extremely effective. It was discovered that this was the case, and the present invention was developed.

That is, by adding a small amount of an aqueous solution of germanium bis-β-ethylcarzenate sesquioxide to the electrolyte of the storage battery, a large amount of oxygen is supplied from this compound, which combines with the hydrogen generated in the storage battery and becomes water. “It has been found that the above-mentioned adverse effects of hydrogen can be completely suppressed and the functionality of storage batteries can be enhanced.This method is also useful in preventing self-discharge.

It has also been found that the addition of this germanium compound has the effect of completely returning the sulfation to its original dilute sulfuric acid, cleaning the electrode plate, making it easier for the electrolyte to flow, and protecting the electrode plate. In addition, the electronic effect of germanium quickly cleans the electrode plates and increases the potential difference, so the storage battery accepts charge easily and quickly.

Furthermore, the electronic properties due to the addition of germanium compounds are such that during charging, the polarization of the Pb and PbO2 poles is small, so less voltage is required for charging, and the charging time can be shortened. It was also found that during discharge, since the polarization of both poles is small, the discharge voltage is high and the discharge can be withstood for a long time.

As described above, according to the present invention, by adding bis-β-ethercaldic acid germanium oxide to the electrolytic solution of a storage battery whose function has deteriorated, its function can be quickly restored. Further, by constantly adding it, it is possible to maintain a storage battery with good performance at all times.

The present invention will be explained below using specific examples.

Example 1 0.1% aqueous solution of kermanium sesquioxide bis-β-ethylcarzenate 12V
When it was added on average to each cell of a 12V to 60A storage battery and charged, charging was completed in a short time, the voltage showed all the normal values, and discharge performed at its best. That is 10
．． The electromotive force, which was not present at 2 V L, recovered to 11.4 V.

Example 2 Automotive lead-acid battery (12V, 12A) with slightly reduced functionality
~60 A), 50 ydi of 0.054 aqueous solution of bis-β-ethylcarboxylic acid germanium sesquioxide
Added to each cell average.

The headlights, which were previously dark, became brighter, and I was able to start things that were difficult to start due to low temperatures in one go. Initially, the electromotive force was 10°4■, but it had recovered to 11.5V.

Patent Applicant: Tokai Sangyo Co., Ltd. Shinya Sato Procedural Amendment June 1980-0 Director-General of the Patent Office Kazuo Wakasugi 1, Indication of the Case 1982 Patent Application No. 67869 2 Name of Invention Function of Storage Battery Restoration agent and method for restoring the function of storage batteries 3 Relationship with the intelligence of the person making the amendment Patent applicant 4, Agent 〒105 5, Date of amendment order Voluntary 6, Number of inventions increasing due to i'llf suspension As shown in the attached sheet .

8. Contents of amendment (1) “11” on page 4, line 15 of the specification has been replaced with “i”
” he corrected.

(2) “Germanium” on page 6, line 19 of the specification
After a certain time, he joined the group as ``Sesuki''.

Claims (1)

[Claims] 1. A function restoring agent to be added to the electrolyte of a lead-acid battery, which has the formula 0 = Ge-OH, -0H2-000H0=
Bis-β represented by Ge-0H2-OH2-C00H
- Ethylcaldic acid germanium sesquioxide dissolved in water 2, formula 0 = Ge-0H2-OH, -C! OOH0=
A method for restoring the function of a storage battery, which comprises adding bis-β-ethylcaldic acid germanium sesquioxide represented by Ge -OH, -CH2-000H to an electrolytic solution of a lead-acid battery.