CN210200869U

CN210200869U - Storage battery for container energy storage system

Info

Publication number: CN210200869U
Application number: CN201920933016.6U
Authority: CN
Inventors: Jialin Fan; 范家林
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-03-27
Anticipated expiration: 2029-06-20

Abstract

The utility model relates to a battery technical field, in particular to container is battery for energy storage system. It is including the battery case that has the inner chamber, a plurality of baffles, and the battery piece, the battery piece includes that the curved surface sets up the casing that is used for increasing heat radiating area, and enclose into a seal chamber's sealed lid with the casing, be equipped with positive grid tray and negative pole grid tray in the seal chamber, positive grid tray and negative pole grid tray are the curved plate the same with casing curvature radius, be equipped with a plurality of grid plate holes that run through the curved plate on the curved plate, the grid plate hole is the last bottom surface bonding symmetry setting of two round platforms, be equipped with a plurality of fins on the grid plate hole, form the cooling layer between battery case and the casing. The utility model discloses a positive grid tray and negative pole grid tray set up to the curved plate, and the grid plate hole that the last bottom surface bonding symmetry of two round platforms set up can increase the area of contact of active material and grid tray, and then increase reaction area improves the conversion rate of electric quantity, has shortened the charge-discharge time of electric quantity.

Description

Storage battery for container energy storage system

Technical Field

The utility model relates to a battery technical field, in particular to container is battery for energy storage system.

Background

Along with the high-speed development of the science and technology of China, mobile power stations are produced, and because of the convenience, the use of mobile power stations is more and more extensive and common, and the power that mobile power stations thought to move as the name implies, along with, the use of battery is also more and more extensive and common, and the electric power storage capacity and the charge-discharge performance of battery have also obtained attention simultaneously.

Because the surface of the traditional grid plate of the storage battery is a punched smooth structure, and the expansion of the lead plaster inevitably occurs in the discharging process, for the traditional grid plate with the honeycomb straight holes and the punched smooth structure, the expanded lead plaster cannot be effectively and physically blocked, so that part of the lead plaster falls off from the grid and fails, and the conversion rate of electric quantity is low, and the electric power storage capacity is poor. Meanwhile, in the mobile power station, a plurality of battery cells are often connected in parallel for increasing the capacity, and in this case, the heat dissipation of the battery cell located in the central portion surrounded by the other battery cells is insufficient, and there is a problem that deterioration or failure of the battery cell due to overheating is likely to occur.

Patent CN 106099120 a discloses a storage battery for supplying power to an electrical component, the electrical component has at least two wires, and includes a housing having a receiving space; the positive plate and the negative plate are positioned in the accommodating space and respectively provided with a plurality of grids and a plurality of active substances, the grids are arranged at intervals, and the active substances are adhered to the grids; a partition board is accommodated in the accommodating space and positioned between the positive plate and the negative plate; most electrolyte is positioned in the accommodating space and fills each gap in the accommodating space; two poles are respectively connected with the positive plate and the negative plate in a conduction way, at least part of each pole is exposed out of the shell and is used for conducting and connecting two wires, each grid frame is composed of a plurality of connecting strips, each connecting strip is provided with at least one hole, or at least one lug, or at least one hole and at least one lug, and the active substance is adhered to and covered on the hole and the lug. Patent CN 108336267 a discloses a battery including a case (20) for housing battery cells, the case (20) having top plates (21, 22) overlapping each other when viewed in the z direction, the top plate (21) having a convex portion (21A) and a concave portion (21B), and the top plate (22) having a convex portion (22A) and a concave portion (22B). The convex portion (21A) overlaps the concave portion (22B) when viewed from the z direction, and the convex portion (22A) overlaps the concave portion (21B) when viewed from the z direction.

Among the above-mentioned technical scheme, though through set up hole and lug on the connecting strip at the grid, increase active material and connecting strip area of contact, avoid the phenomenon of droing, its hole is the straight hole, though can avoid some active material to drop, but to the diachylon of inflation, owing to can not provide effectual physics and block, so can not be fine play anti-drop's effect. The surface area of the top plates (21, 22) of the case (20) is increased by forming the top plates into a concave-convex shape, thereby further improving heat dissipation and mechanical strength, but in the case of stacking the batteries at a high density, heat cannot be directly discharged to the outside of the battery only by temporarily dissipating the heat into the gaps formed by the convex portions and the concave portions, and finally the heat dissipation effect is not satisfactory, and thus problems such as deterioration and failure of the battery cells due to overheating are likely to occur.

Disclosure of Invention

Not enough to prior art exists, the utility model aims to solve the technical problem that, a simple structure is provided, and not only the electric quantity conversion rate is high, and the radiating effect is good moreover, and the security is high, the container battery for energy storage system of environmental protection.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a storage battery for a container energy storage system comprises a storage battery shell with an inner cavity, a plurality of baffles for dividing the inner cavity into a plurality of accommodating cavities, and a storage battery block arranged in the accommodating cavities, wherein the storage battery block comprises a shell body and a sealing cover, the shell body is arranged on a curved surface and used for increasing the heat dissipation area, the sealing cover and the shell body enclose a sealing cavity, a positive grid plate and a negative grid plate are arranged in the sealing cavity, a partition plate is further arranged between the positive grid plate and the negative grid plate, the positive grid plate and the negative grid plate are both curved plates with the same curvature radius as that of the shell body, a plurality of grid plate holes penetrating through the curved plates are arranged on the curved plates, the grid plate holes are symmetrically arranged by bonding the upper bottom surfaces of two circular truncated cones, a plurality of convex ribs capable of increasing the contact area of active substances with the positive grid plate and the negative grid plate are arranged on, and a cooling layer for cooling the acid gas is formed between the storage battery shell and the shell.

In the storage battery for the container energy storage system, the grid plate holes and the curved plate are inclined at a certain angle, and the inclination angle is 45-60 degrees.

In the storage battery for the container energy storage system, the grid plate holes are formed by adhering and symmetrically arranging the upper bottom surfaces of the two circular truncated cones, the lower ends of the grid plate holes are planar cut-out portions, and the grid plate holes and the curved plate are obliquely and vertically arranged.

In the storage battery for the container energy storage system, the grid holes are arranged in an array, and the distance between the grid holes is 0.8-1.5 cm.

In the storage battery for the container energy storage system, the sealed cavity is filled with the electrolyte, and the electrolyte is colloidal electrolyte.

In the storage battery for the container energy storage system, the partition plate is made of glass wool.

In the storage battery for the container energy storage system, the storage battery block further comprises two poles, and an interlayer for cooling the acid gas is formed between the shell and the baffle.

The utility model discloses container is battery for energy storage system's beneficial effect is: the positive grid plate and the negative grid plate are arranged into the curved plates, and the upper bottom surfaces of the two circular truncated cones are bonded with the symmetrically arranged grid plate holes, so that the contact area of the active substance and the grid plates can be increased, the reaction area is increased, the conversion rate of electric quantity is finally improved, and the charging and discharging time of the electric quantity is shortened while the electric quantity is increased; and simultaneously, the utility model discloses in the setting of grid plate hole inclination angle setting and a plurality of fin, can prevent to produce the emergence of the condition of peeling off because the diachylon inflation in the charging process to further improve the conversion rate of electric quantity, increased substantially "electric power storage" ability of battery piece. The shell is set to be a curved surface, so that the surface area of the shell is increased, the heat dissipation area is increased, a large amount of heat is dissipated to the outside, and the problems of degradation, faults and the like of the storage battery monomer caused by overheating are avoided; and a cooling layer is formed between the shell and the shell, so that the cooling of the acid gas can be realized, the acid gas is prevented from being diffused to the air from the sealing cover, and the environment pollution is prevented. The utility model discloses simple structure, not only the electric quantity conversion rate is high, and the charge-discharge time is short, and the radiating effect is good moreover, and the security is high, still can prevent effectively that acid gas from spilling over, has improved the environmental safety performance of battery.

Drawings

Fig. 1 is a schematic side view of a battery block in embodiment 1;

FIG. 2 is a schematic front view showing the structure of a battery block in embodiment 1;

fig. 3 is a schematic perspective view of a battery block in embodiment 1;

fig. 4 is a schematic diagram of a negative electrode grid plate structure in example 1;

FIG. 5 is an enlarged view of the structure of the part B;

FIG. 6 is a view showing a usage state of the present invention;

FIG. 7 is a schematic side view showing the structure of a battery pack in accordance with embodiment 2;

FIG. 8 is a schematic front view showing the structure of a battery block according to embodiment 2;

fig. 9 is a schematic perspective view of a battery block in embodiment 2;

FIG. 10 is an enlarged view of the structure of part A;

fig. 11 is a schematic diagram of the structure of the grid holes in example 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments;

example 1:

as shown in fig. 1-6, a storage battery for container energy storage system, including the battery case 1 that has the inner chamber, a plurality of baffle 2 for separating the inner chamber for a plurality of chambeies that hold, and place in the battery piece 3 that holds the intracavity, battery piece 3 includes that the curved surface sets up the casing 4 that is used for increasing heat radiating area, and enclose sealed lid 6 that becomes a seal chamber 5 with casing 4, it has the electrolyte to fill in the seal chamber, the electrolyte is the colloidal electrolyte, can prevent effectively that the electrolyte from revealing, has increased the environmental security of battery. The sealed cavity 5 is internally provided with the positive grid plate 7 and the negative grid plate 8, the positive grid plate is made of high-tin low-calcium special multi-element alloy, the corrosion resistance of the positive grid plate is improved, the high-tin low-calcium special multi-element alloy has small internal resistance and higher discharge efficiency and higher high-rate discharge performance, the negative grid plate is made of antimony-free lead-calcium multi-element special alloy, the separation of hydrogen can be inhibited, the purpose of basically preventing water loss is achieved, water is not needed to be added for maintenance during the service life of the storage battery block, and the use is convenient. A partition plate 9 is arranged between the positive grid plate 7 and the negative grid plate 8, and the material of the partition plate is glass wool.

The positive grid plate 7 and the negative grid plate 8 are both curved plates with the same curvature radius as the shell 4, and the positive grid plate 7 and the negative grid plate 8 are set to be curved surfaces, so that the contact area of active substances with the positive grid plate 7 and the negative grid plate 8 can be increased, the reaction area is increased, the conversion rate of electric quantity is increased finally, and the charging and discharging time of the electric quantity is shortened while the electric quantity is increased; the curved plate is provided with a plurality of grid plate holes 10 penetrating through the curved plate, the grid plate holes 10 are formed by bonding and symmetrically arranging the upper bottom surfaces of two circular truncated cones, the grid plate holes and the curved plate are arranged at certain inclination angles, the inclination angle is 45-60 degrees, the stripping condition caused by expansion of lead plaster in the charging process can be prevented, the grid plate holes 10 are provided with a plurality of convex ribs 11 capable of increasing the contact area of active substances with a positive grid plate and a negative grid plate, the convex ribs 11 are arranged in a protruding mode towards the outer side of the grid plate holes 10, and the convex ribs are triangular long-strip ridges; in order to ensure that the current distribution on the positive grid plate 7 and the negative grid plate 8 is uniform and reasonable, the holes of the upper grid plate are arranged in a square array, and the distance between the holes of the grid plates is 1 cm. The storage battery block is provided with a cooling layer 12 for cooling the acid gas formed between the storage battery shell 1 and the casing 4, and also comprises two poles 13, and an interlayer for cooling the acid gas is formed between the casing 4 and the baffle 2, so that the acid gas can be cooled, and the acid gas is prevented from being scattered to the air from the sealing cover to pollute the environment.

Example 2:

as shown in fig. 7 to 11, the same parts of this embodiment as those of embodiment 1 are not described again, but the differences are: the second grid plate hole 14 is provided, the grid plate holes 14 are symmetrically arranged by bonding the upper bottom surfaces of the two circular truncated cones, the lower end of each grid plate hole 14 is provided with a planar cut-out portion 15, and the grid plate holes 14 are obliquely and vertically arranged with the curved plate.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a container is battery for energy storage system, is including the battery case that has the inner chamber, and a plurality ofly is separated the inner chamber for a plurality of baffles that hold the chamber to and place in holding the battery piece of intracavity, its characterized in that: the storage battery block comprises a shell and a sealing cover, wherein the shell is arranged on a curved surface and used for increasing the heat dissipation area, the sealing cover and the shell are enclosed to form a sealing cavity, a positive grid plate and a negative grid plate are arranged in the sealing cavity, a partition plate is further arranged between the positive grid plate and the negative grid plate, the positive grid plate and the negative grid plate are curved plates with the same curvature radius as the shell, a plurality of grid plate holes penetrating through the curved plates are formed in the curved plates, the grid plate holes are symmetrically arranged by bonding the upper bottom surfaces of two round tables, a plurality of convex ribs capable of increasing the contact area of lead plaster with the positive grid plate and the negative grid plate are arranged in the grid plate holes, the convex ribs protrude towards the outer sides of the grid plate holes and are triangular long strips, and a cooling layer used for cooling acid gas.

2. A battery for a container energy storage system as defined in claim 1, wherein: the grid plate holes and the curved plate are inclined at a certain angle, and the inclination angle is 45-60 degrees.

3. A battery for a container energy storage system as defined in claim 1, wherein: the grid plate holes are formed by symmetrically bonding the upper bottom surfaces of the two circular truncated cones, the lower ends of the grid plate holes are planar cut-out portions, and the grid plate holes and the curved plate are obliquely and vertically arranged.

4. A battery for a container energy storage system as defined in claim 1, wherein: the grid plate holes are arranged in an array mode, and the distance between every two grid plate holes is 0.8-1.5 cm.

5. A battery for a container energy storage system as defined in claim 1, wherein: the sealed cavity is filled with electrolyte, and the electrolyte is colloidal electrolyte.

6. A battery for a container energy storage system as defined in claim 1, wherein: the material of the separator is glass wool.

7. A battery for a container energy storage system as defined in claim 1, wherein: the storage battery block further comprises two polar columns, and an interlayer for cooling the acid gas is formed between the shell and the baffle.