SU7580A1 - Battery Electroplating - Google Patents

Description

In the case of periodic use of galvanic cells, the latter are consumed mainly during long periods of inactivity due to random chemical reactions taking place in them. In order to avoid the expenditure of elements, during idle times, they sometimes resort to lifting electricity. trod of vessels (element Grenay). This method eliminates the waste of electrodes and electrolyte, but has other drawbacks: for example, with a large number of cells, battery maintenance is difficult, agglomerates often disperse, sjt from their seats and do not fall into their vessels when lowered; when standing in a large number of vessels, the electrolyte crawls up and out along the walls and evaporates very strongly, poisoning the indoor air; the electrolyte is usually consumed not equally in different battery cells, while it is almost impossible to verify in which particular cells and to what extent its recovery is required; In order to restore or replace the electrolyte, it is necessary to pour it out of each element separately and then fill each of them separately; the addition of evaporated water is also required to be carried out separately in each element. The present invention aims to eliminate the indicated deficiencies by using electroplating cells in the battery, equipped with a device for simultaneously filling and emptying all vessels with electrolyte, communicating, for this purpose, with a separate collecting tank of U-shaped cells, whose narrow channels serve for electrolyte overflow, and wider knees of cells serve as vessels of elements. At the same time, all cells, according to the number of battery cells, are installed in such a way that the narrow knees are enclosed in a common va., Which is hermetically closed. The electrolyte is poured into this bath and enters the vessels for the elements along narrow elbows. Upon filling, their electrolyte level is somewhat reduced, so that the ends of the narrow rings are exposed above the level of the solution in the bath, due to which the contact between the elements through the electrolyte is broken.

The battery of electrochemical cells shown schematically in the drawing, in section, consists of O-shaped cells, having the form 9 or 10, or 11 and m, p. Form 9 can easily be made of clay so that the auxiliary elbows will be vertical holes made in the thickening of the walls. For such clay vessels, it is not required for firing, especially dense, consistency or glaze, since, with weak infiltration, the electrolyte does not contaminate anything, but remains inside the common bath 3.

The cells 9, 10, 11 are plastered into the holes 4 of the cover 2 and are located so that almost completely fill the section of the bath 3 (for example, with a bath diameter of 20-25 cm, 50 cells of 25 cm each can be easily placed in it).

To stop work, by blowing air into the tube 1 with the opening 8 in the cover 2, lift the electrolyte from the collector located below into the auxiliary bath, plug the holes 8 and 1 with the stoppers and allow the solution to drain into the collection. Due to creating a vacuum in the upper bath, the solution is removed from the cells through the right knees 5, b, 12. For new filling, it will only be necessary to lift the electrolyte into the upper bath (by blowing air into the tube 1) to the level of the right knees through which the solution enters the cells.

Instead of tube 1-14, there may be a hole in the upper part of the collector 13. The latter may be placed not under the bath 3, but adjacent to and connected to the bath by a flexible sleeve or siphon. Then bath 3 may not have a throat 16, i.e. The electrolyte opening can be on the side or on top (through a siphon). Filling and draining the electrolyte can be done

not only by forcing air, but simply by raising or lowering the collection.

All parts of the apparatus may be ceramic, glass or other material. The lid should only be made of insulating material if the cells consist of a conductor. Tightness in connection with the lid and between the baths on line 18 can be achieved with putty or bandage of rubberized tape, paper on glue or with gasket on the flanges.

The subject of the patent.

1. A battery of gas cells equipped with a device for simultaneous filling and emptying of all the electrolyte from it, communicating for this purpose with a separate collection tank, characterized using G-shaped cells 9, 10, etc. (Fig. 1 ), narrow elbows 5, 6, etc., which are assigned for electrolyte overflow, are placed in an intermediate bath connected to a collecting tank and hermetically closed, bath 3, in the lid 2, which are reinforced, serving as vessels, wide knee cells (Fig. one).

2. The form of the battery described in paragraph 1, characterized by using a collecting tank 13 located under the bath 3 and communicating with it through an open throat 15 through which the bent tube 14 passes, which serves to underpressure and air under the electrolyte surface in the collecting tank (Fig. 1).

3. When characterized in pp 1 and 2 batteries, in the cap of the bath 3, openings 8, closed with a stopper and used to equalize the pressure in the knees of the cells 9, 10, etc. (Fig. 1).

-. tJSSg

Ifo

it

r6

fs.

i2

J3

j- fss m SHE

Js

iB

yj