RU165161U1 - BATTERY OF ELECTROCHEMICAL CELLS - Google Patents

Abstract

1. A battery of electrochemical cells, comprising housing elements including lower and upper radiators, a compression device, end down conductors and flat electrochemical cells in a laminated case, between which there are heat sink plates, characterized in that the electrochemical cells are parallel to the radiators and assembled into stacks pairwise connected patch plates located alternately above and below the stacks, while the upper and lower radiators around the perimeter are hermetically connected elastic casing, a compressing device is arranged as a system of uniformly distributed among stacks of pins whose ends are fixed in the upper and lower radiatorah.2. The battery of electrochemical cells according to claim 1, characterized in that the casing is corrugated. 3. The battery of electrochemical cells according to claim 1, characterized in that springs are installed at the ends of the studs. 4. The battery of electrochemical cells according to claim 1, characterized in that the upper radiator is equipped with a charging valve for filling in a dielectric heat-conducting fluid.

Description

The utility model relates to the field of electrical engineering, namely, to batteries or secondary power sources that directly convert the electric energy of a charge into the energy of a double electric layer in supercapacitors or into the chemical energy of electrode structures in batteries.

A battery of electrochemical cells is known from the prior art, comprising housing elements including lower and upper radiators, a compression device, terminal down conductors and flat electrochemical cells in a laminated case, between which heat-removing plates are located (see patent RU 153171, class Н01М 2/10, publ. 07/10/2015). In the known device, the electrochemical cells are perpendicular to the radiators, and the compression device is made in the form of one or two elastic chambers filled with gas under pressure. The technical problem is the creation of a lighter economical design with the same power characteristics, efficiency and service life.

In the proposed battery of electrochemical cells containing housing elements including lower and upper radiators, a compression device, end collectors and flat electrochemical cells in a laminated case, between which there are heat sink plates, electrochemical cells are parallel to the radiators and are stacked in pairs, connected in pairs by patch plates located alternately above and below the stacks, while the upper and lower radiators around the perimeter are hermetically connected to each other by an elastic casing And that the compression device is designed as a system of uniformly distributed among stacks of pins whose ends are fixed in the upper and lower radiators. The casing is preferably corrugated. Preferably, springs are installed at the ends of the studs. The upper radiator is preferably provided with a charge valve for filling in a dielectric heat-conducting fluid.

The combination of the above features allows you to solve the above technical problem and get a technical result, which consists in simplifying the design of the battery.

In FIG. 1 shows the proposed battery assembly, a General view with a neckline;

in FIG. 2 - its internal elements without radiators and a casing;

in FIG. 3 is the same as in FIG. 2, front view;

in FIG. 4 is a general view of a battery with a fueling valve;

in FIG. 5 - sectional refueling valve.

In the proposed design of the battery, the electrochemical cells 1 in the laminated case are stacked and arranged parallel to the radiators 2, which act as the main body elements that take on the entire load from mechanical compression. Those. radiators 2 in addition to the cooling function perform the function of strong flat pressure plates, while the absence of additional massive housing elements greatly facilitates the design. Radiators 2 can be made in the form of ribbed, cellular or honeycomb plates.

To compress the stacks of electrochemical cells 1, a compression device is used in the form of a system of rod or hollow metal studs 3 evenly distributed between the stacks with threads on one or two sides for fastening in radiators 2. Hollow studs 3 on one side can be made with flaring. Under the flared edge of the studs 3, coil or disk springs 4 are installed, which provide a constant compression force of the stacks and compensation of thermal expansion, as well as the shrinkage of the electrochemical cells 1 in time. The ends of the studs 3 are fixed in the radiators 2 through the sealing rubber rings 5.

All stacks of electrochemical cells 1 are connected in pairs by switching conductive plates 6 located alternately above and below adjacent stacks. The extreme stacks of electrochemical cells 1 are pressed against the terminal down conductors 7 with contact leads 8. Contact leads 8 pass through the holes in the upper radiator 2 and are sealed with hermetic insulating bushings (not shown in the drawings). Down conductors 7 and patch plates 6, combining adjacent stacks of electrochemical elements, are isolated from radiators 2 by dielectric spacers 9.

The upper and lower radiators 2 around the perimeter are hermetically connected to each other by an elastic casing 10. The casing 10 can be made of metal foil in the form of a bellows or corrugated polymeric materials, which is necessary to compensate for temperature expansion and shrinkage of the stacks of electrochemical cells 1 in time.

Separate adjacent electrochemical cells 1 in stacks are connected using intermediate heat-conducting conductive plates 11, connected to the windows 12 in a laminated case. Plates 11 are used to remove heat from electrochemical cells and to output electrical circuits required for connection to voltage equalization boards (not shown in the drawings).

The upper radiator 2 is equipped with a filling valve 13 for filling a dielectric heat-conducting fluid, for example, transformer oil or ethylene glycol. After filling the battery, the valve 13 is closed with a sealed cover 14, sealed by a gasket 15. The valve 13 is made in the form of a hollow sleeve 16, which, using the nut 17 and the washer 18 through the rubber gasket 19, is attached to the radiator 2.

The proposed design allows for the minimum amount of lightweight parts to maintain the necessary pressure and create a device that has the same strength and power characteristics, as well as efficiency and service life, as more massive batteries.

Claims (4)

1. A battery of electrochemical cells, comprising housing elements including lower and upper radiators, a compression device, end down conductors and flat electrochemical cells in a laminated case, between which there are heat sink plates, characterized in that the electrochemical cells are parallel to the radiators and assembled into stacks pairwise connected patch plates located alternately above and below the stacks, while the upper and lower radiators around the perimeter are hermetically connected elastic casing, a compressing device is arranged as a system of uniformly distributed among stacks of pins whose ends are fixed in the upper and lower radiators. 2. The battery of electrochemical cells according to claim 1, characterized in that the casing is corrugated. 3. The battery of electrochemical cells according to claim 1, characterized in that springs are installed at the ends of the studs. 4. The battery of electrochemical cells according to claim 1, characterized in that the upper radiator is equipped with a charging valve for filling the dielectric heat-conducting fluid.

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