JPH01134853A - Immersion cell - Google Patents

Abstract

PURPOSE:To prevent leak of liquid certainly and enhance the preserving characteristic by interposing a treble leak preventive construction between an electrolyte chamber and an electrode chamber or starter device. CONSTITUTION:An inner flange a is formed at the end on side in connection with an electrode chamber 9 in which a group of electrodes 10 activated by injecting electrolyte 2 is incorporated, i.e. at the end of an electrolyte chamber 1 filled with electrolyte 2, while an outer flange b formed at the end on the side in connection with a starter device 12 filled with a gas generating substance 14, which generates gas when ignited by an igniting lead 13, and they are put in close contact with one side of a diaphragm 3 which separates the flange a between the electrolyte chamber 1 and electrode chamber 9, and this surface is brazed fast to the outer flange 6 by brazing material 4. The end of the electrolyte chamber 1 is fixed to the end of a coupling pipe 6 with a screw 7, and the end of this coupling pipe 6 is put in pressure contact with the other side of the diaphragm 3 through a hollow metal O-ring 5. The outer end of the electrolyte chamber 1 is coupled with another coupling pipe 6'.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION This invention relates to injection batteries, and more particularly to isolation between an electrolyte chamber and an electrode chamber.

Conventional technology and its problems In a liquid injection type battery, the electrolyte chamber and the electrode chamber are separated by a diaphragm, etc., and then assembled.The diaphragm, etc. is destroyed by a signal given from the outside at the time of startup, and the electrolyte in the electrolyte chamber is Yli
It is activated by injecting a liquid into the electrode chamber, and it is essential that it can be stored for a long period of time in a usable state, that is, with the electrolyte chamber filled with electrolyte. However, some electrolytes for injection batteries use aqueous caustic potassium solution, sulfuric acid, etc. In this case, there was a problem that due to its strong permeability, it leaked from the structural attachment part of the diaphragm.

In order to solve the above problems, in conventional injection type batteries, a diaphragm mounting flange a is provided at the end of the electrolyte chamber 1 where the electrolyte 2 is filled, as shown in FIG. 7
It has been practiced to braze the diaphragm 3 to the lunge B with a brazing filler metal 4. For example, when the injection type battery is a silver-zinc oxide battery, the electrolyte chamber 1 is made of stainless steel and the diaphragm 3 is made of steel plate, so silver solder is most suitable as the filler metal 4. contains 10 to 30% each of copper, zinc, and cadmium eluted into the electrolyte, a caustic potassium aqueous solution.
The corrosion resistance against the electrolyte was not perfect. In other words, if there is a sufficient amount of electrolyte to cause the substance to elute and cause leakage, and if there is dissolved oxygen in the electrolyte, countless minute holes will form in the silver solder during long-term storage. It turned out that this led to leakage. In this case, brazing with silver solder can lengthen the leakage path by making the part long enough to lengthen the leakage path, but it is difficult to braze evenly and it is difficult to do so. , brazing may cause pin holes in the part,
The drawback was that sufficient effects could not be obtained.

In addition, in FIG. 3, 6 is a connecting pipe leading to the mti chamber, and 7 is a screw for fixing this connecting pipe 6 and the electrolyte solution 1.

OBJECTS OF THE INVENTION The present invention overcomes the above-mentioned disadvantages by providing a diaphragm separating the electrolyte chamber from the electrode chamber or the starting device, and by brazing one side of the diaphragm to the end of the electrolyte chamber. , and the other surface of the diaphragm is brought into close contact with the other portion of the diaphragm, and the other surface of the diaphragm is pressed into contact with the end surface of the connecting pipe with the electrode chamber or the starter device via a hollow metal O-ring, thereby making it possible to The aim is to obtain a liquid injection type battery that can be stored dynamically.

Structure of the Invention The injection type battery of the present invention is provided with a G4 membrane that isolates the electrolyte chamber and the electrode chamber or the starter, and one side of this membrane is brazed to the end of the electrolyte chamber, and the other surface of the diaphragm is brought into close contact with the other part of the one surface, and the other surface of the diaphragm is pressed into contact with the end surface of the connecting pipe with the W electrode chamber or the starter device through a hollow metal O-ring, and is connected to the electrolyte chamber. The diaphragm is destroyed by a signal from the starter device, and the electrolyte in the electrolyte chamber is injected into the electrode chamber to activate it.

EXAMPLES The present invention will be explained below using examples. FIG. 1 is a sectional view of the injection type electro-hydraulic of the present invention, and FIG. 2 is a sectional view of the same essential parts, and the same parts as in FIG. 3 are given the same reference numerals. In FIGS. 1 and 2, the end of the electrolyte chamber 1 filled with the electrolyte 2, that is, the electrode group 1 is activated by injecting the electrolyte.
An inner flange is provided at the end of the side connected to the electrode chamber 9 in which the ignition lead wire 13 is ignited and the end connected to the starting device 12 filled with the gas generating substance 14 that is ignited by the ignition lead wire 13 to generate gas. A and an outer flange b are formed, and the inner flange a is brought into close contact with one surface of the diaphragm 3 that isolates the electrolyte chamber 1 and the electrode chamber 9, and the said surface is bonded to the outer 7 flange with a brazing material 4. b is brazed. Further, the end of the electrolyte chamber 1 is fixed to the end of a connecting pipe 6 connected to the electrode chamber 9 with a screw 7, and the end of the connecting pipe 6 is connected to the diaphragm 3 through a hollow metal ring 5. is pressed against the other surface of the On the other hand, the other end of the electrolyte chamber 1 is connected to the end of the connecting pipe 6' leading to the starter ff112 via the diaphragm 3' in the structure described above. The starter device 12 is filled with a gas generating substance 14 that is ignited by an ignition lead 13 to generate gas.
The generated gas pressure destroys the diaphragm 3' and presses the piston 8 in the electrolyte chamber 1. When the piston 8 is pressed, the liquid pressure of the electrolyte 2 in the electrolyte chamber 1 increases, the diaphragm 5 is destroyed, and the electrolyte 2 flows into the electrode chamber 9.
A liquid is injected into the electrode group 10 from a plurality of liquid injection ports 15 provided therein to activate it. In FIG. 1, 11 is a terminal for supplying power to the outside.

In the battery of the present invention configured as described above, it is possible to prevent electrolyte 2 from leaking from electrolyte chamber 1 to electrode chamber 9 or starter device 12 during maintenance. That is, the electrolytic solution 2 is applied to the portion where one surface of the diaphragm 5 and the inner flange a are brought into close contact, and to the diaphragm 6.
A part in which one side of the outer flange b is brazed to the outer flange b;
Interval &! A triple leakage prevention structure is provided by the hollow metal O-ring 5 interposed between the other surface of the pipe 3 and the connecting pipe 6. Therefore, it is possible to prevent liquid leakage at the part where one side of the diaphragm 5 and the inner flange a are first brought into close contact, so even if liquid leaks at this part, there will be enough snow to cause the brazing filler metal 4 to corrode. It can prolong the time it takes for the solution to leak, and even if the solution leaks from the brazed part,
By the next hollow metal O-ring 5! Pole chamber 9 or starting device! 12 is prevented from leaking.

In the above embodiment, it goes without saying that the same effect can be obtained even if the brazing using the brazing material 4 is replaced with a backing.

Effects of the Invention As described in detail in the embodiments, the injection type electro-oil of the present invention has a triple leakage prevention structure between the electrolyte chamber and the electrode chamber or the starter, so that leakage is prevented. This can be reliably prevented and storage stability can be improved.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a liquid injection type battery of the present invention, FIG. 2 is a cross-sectional view of the same main part, and FIG. 5 is a cross-sectional view of the main part of a conventional liquid injection type battery. 1... Electrolyte chamber 3, 3'... Diaphragm 406.
Brazing filler metal 5... Hollow completely eliminated ring 6, 6'
...Connecting pipe 8...Piston 9...W pole chamber
10...Electrode group 12...Start! Device
13...Ignition lead wire 14...Ganu generating substance

Claims (2)

[Claims] (1) In a liquid injection type battery in which the electrolyte in the electrolyte chamber is injected into the electrode chamber and activated by a signal from the starter, a diaphragm is used to isolate the electrolyte and the electrode chamber or the starter. one surface of the diaphragm is brought into close contact with a part of the end of the electrolyte chamber and brazed to the other part of the end, and the other surface of the diaphragm is connected via a hollow metal O-ring. A liquid injection type characterized in that the membrane is pressed into contact with the electrode chamber or the connecting pipe with the starter device, the diaphragm is destroyed by a signal from the starter device, and the electrolyte in the electrolyte chamber is injected into the electrode chamber to activate it. battery. (2) A piston is provided in the electrolyte chamber, and the starter is filled with a gas generating substance that generates gas when ignited, and the generated gas pressure presses the piston and destroys the diaphragm, causing the electrolyte Claim 1, characterized in that the electrolyte in the chamber is injected into the electrode chamber.
Injectable battery as described in section.