JPS5832752B2 - How to get the latest information - Google Patents

Description

Detailed Description of the Invention The present invention relates to a storage battery catalyst stopper equipped with a catalyst stopper that recombines hydrogen and oxygen gases generated during charging and discharging of a storage battery to form water, and returns the water to the storage battery. This relates to a method for measuring reaction efficiency.

A catalyst plug attached to a storage battery houses a catalyst body made of activated carbon with platinum deposited on it, but this catalyst body deteriorates over time during use, and its ability to bind hydrogen and oxygen gas gradually deteriorates. When the reaction efficiency decreases to a certain limit, it is necessary to replace it.

The conventional method for measuring the reaction efficiency of this catalyst body or catalyst plug is to charge a fully charged storage battery with a constant current, immerse the tip of a pipe connected to the catalyst plug attached to the storage battery in water, and then measure the reaction efficiency from the tip of the pipe. The outflowing unreacted gas is introduced into the cylinder for a certain period of time, and then the inside of the catalyst plug is cut off from the storage battery or the catalyst plug is removed from the storage battery and the gas is stored in the cylinder for the same period of time in the same manner as described above. compared with the amount of gas released from the catalyst plug.

However, since this method replaces water with water, the gas cannot enter the cylinder unless the pressure is above a certain level. Therefore, if the amount of gas generated is small, it takes a long time to measure, resulting in poor workability and lack of accuracy. .

Furthermore, if there is an excess of hydrogen in the catalyst plug during measurement and the pressure becomes negative, there is a risk that water will flow back from the pipe and flow into the catalyst plug.

The present invention has been made in view of the prior art, and includes the amount of exhaust gas released into the atmosphere from a catalyst plug attached to a storage battery, and the amount of gas generated by the storage battery measured by cutting off the inside of the catalyst plug from the storage battery. The purpose of this invention is to provide a simple and accurate method for measuring the reaction efficiency of a storage battery catalyst plug, which is characterized by measuring and comparing the amounts using a surfactant membrane flowmeter.

An embodiment of the present invention will be described.

In FIG. 1, reference numeral 1 denotes a surfactant membrane flowmeter used in the present invention, and the surfactant membrane flowmeter 1 is located at the central lower part of a straight tube-shaped measuring section 2, which is a transparent glass tube with both ends open and marked with scales. It has a T-shape in which the measurement part 2 and a branch tube 3 made of the same material are integrally formed, and the tip of the branch tube 2 is made of a flexible material with resilience and contains a surfactant liquid 4 such as soap water. A narrow diameter portion 6 of a spherical surfactant liquid storage bag 5 made of, for example, polyethylene or rubber is fitted.

FIG. 2 shows a state in which the reaction efficiency of a storage battery catalyst plug is measured using the above-mentioned surfactant membrane flowmeter 1. Connect the other end of the rubber tube 10 fitted to one end of the straight tube-shaped measuring part 2 of the surfactant membrane flowmeter 1 to the opening 9, perform constant current charging for two people, and then insert the surfactant liquid storage bag 5. A surface-active film is applied from the branch pipe 3 to the measurement part 2 by pressing, and the gas release position calculated from the moving distance of this surface-active film in a certain period of time is set to A. Next, the inside of the catalyst stopper 8 is isolated from the storage battery, and the interface Let the amount of gas generated be B, which is calculated by connecting the rubber tube 10 of the active membrane flow meter 1 with the inside of the storage battery 7 and measuring the moving distance of the surfactant membrane in the same period of time using the same method as described above.

From the above measured quantities, the reaction efficiency is expressed by the following formula.

For example, the value of A is 2ml/see j and the value of B is 8”i!/
see, the reaction efficiency will be (1--)X100=75.

However, since the method for measuring the reaction rate of a storage battery catalyst plug according to the present invention uses a surface-active membrane that is sensitive to even a small amount of gas to measure the amount of gas, it can be measured with a relatively small current. Therefore, gas generation due to overcharging is reduced,
The decrease in electrolyte during measurement can be minimized, and since the amount of gas generated is directly measured by the movement of the surfactant membrane, it can be measured accurately.

As described above, the present invention uses a surface-active membrane to measure the amount of exhaust gas released into the atmosphere from a catalyst plug attached to a storage battery and the amount of gas generated in the storage battery, which is measured by cutting off the inside of the catalyst plug from the storage battery. Since we measure each with a flow meter and compare the amounts,
Effects such as being able to measure the reaction efficiency of the catalyst plug extremely easily and accurately are achieved.

[Brief explanation of the drawing]

Figure 1 is a partially cut-away front view of a surfactant membrane flowmeter used in the reaction efficiency measurement method of a battery catalyst plug according to the present invention, and Figure 2 is a partially cutaway front view of a surfactant membrane flowmeter used in the reaction efficiency measurement method of a storage battery catalyst plug of the present invention. FIG. 3 is a diagram illustrating a state in which the amount of gas is being measured.

Claims (1)

[Claims] 1. The amount of exhaust gas released into the atmosphere from the catalyst plug attached to the storage battery and the amount of gas generated from the storage battery, which was measured by cutting off the inside of the catalyst plug from the storage battery, were measured using a surfactant membrane flowmeter. A method for measuring the reaction efficiency of a storage battery catalyst plug, which is characterized by comparing the amounts.