CN218385679U

CN218385679U - Baffle, battery pack, energy storage storehouse and energy storage system

Info

Publication number: CN218385679U
Application number: CN202222827619.2U
Authority: CN
Inventors: 范明山; 胡璐; 陈小波
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-01-24
Anticipated expiration: 2032-10-26

Abstract

The battery assembly comprises a cabinet body and a plurality of batteries, the battery assembly comprises a partition board and a plurality of conductive circuits, and a plurality of inner cavities distributed at intervals are formed in the insulation board; the conductive circuits are respectively accommodated in the inner cavities, and the end parts of the conductive circuits are used for being electrically connected with external equipment. Through adopting above-mentioned technical scheme for the conducting wire has better insulating effect than the cable under the guard action of insulation board, is in the adverse circumstances such as thermal runaway, weeping when the battery, and the phenomenon of striking sparks that the insulating board can avoid high temperature high-pressure gas to contact the conducting wire and arouse as far as possible, and the liquid that can also avoid revealing causes a plurality of conducting wires to form the arc phenomenon that draws that the backward flow arouses as far as possible, thereby effectively reduces the potential safety hazard.

Description

Baffle, battery pack, energy storage storehouse and energy storage system

Technical Field

The application belongs to the technical field of batteries, and more specifically relates to a baffle, battery pack, energy storage storehouse and energy storage system.

Background

Energy storage systems such as energy storage containers and energy storage electric cabinets refer to energy storage devices with high concentration formed by placing a plurality of batteries in a cabinet body.

In the related art, a plurality of batteries are generally electrically connected by a cable, such as in series, in parallel, or in a series-parallel combination of series and parallel. Generally, the insulation effect of the cable is poor, when the battery is in poor environments such as liquid leakage and thermal runaway, the insulation effect of the cable is invalid, and then phenomena such as arc discharge and ignition are generated, so that great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the embodiment of the present application provides a partition board, a battery assembly, an energy storage bin and an energy storage system, and aims to solve the technical problem that a plurality of batteries form an electrical connection through cables in the related art, so that a large potential safety hazard is caused.

In a first aspect, an embodiment of the present application provides a separator, including:

the insulation board is internally provided with a plurality of inner cavities which are distributed at intervals;

and the conductive circuits are respectively accommodated in the inner cavities, and the end parts of the conductive circuits are used for being electrically connected with external equipment.

The utility model provides a baffle for the conducting wire has the better insulating effect that compares in the cable under the guard action of insulation board, is in the adverse circumstances such as thermal runaway, weeping when the battery, and the phenomenon of striking sparks that the insulation board can avoid high temperature high-pressure gas to contact the conducting wire and arouse as far as possible, and the liquid that can also avoid revealing causes a plurality of conducting wires to form the backward flow as far as possible and the arc phenomenon that draws that arouses, thereby effectively reduces the potential safety hazard.

In some embodiments, the insulating plate comprises:

the side surface of the plate body along the thickness direction is provided with a plurality of grooves distributed at intervals;

the insulating layer covers the opening side of the part of the groove and surrounds the groove to form an inner cavity.

Through adopting above-mentioned technical scheme, set up the recess in the side of plate body along thickness direction, the insulating layer covers in the opening side of the part of recess to cover the conducting wire in the recess, so be convenient for realize the operation that the conducting wire set up in the cavity.

In some embodiments, the recess includes a plurality of sub-slots distributed at intervals, and the insulating layer covers the opening sides of parts of the sub-slots; the conductive circuit comprises a plurality of sub-circuits connected in parallel, each sub-circuit is correspondingly arranged in each sub-groove, and the end parts of the sub-circuits are used for being electrically connected with external equipment.

By adopting the technical scheme, on the basis of meeting the overcurrent requirement of the conducting circuit, the beam splitting heat dissipation of the conducting wire bundle is realized, and compared with the conducting circuit which is not divided into a plurality of sub-circuits, the heat accumulation of the conducting circuit can be reduced, so that the heat dissipation capability of the conducting circuit is effectively improved, and the problem that the heat dissipation capability of the conducting circuit is insufficient due to the closed arrangement of the inner cavity is solved.

In some embodiments, the two ends of the conductive circuit are respectively provided with a first conductive terminal and a second conductive terminal, the first conductive terminal is connected to one end of the plurality of sub-circuits of the conductive circuit, and the second conductive terminal is connected to the other end of the plurality of sub-circuits of the conductive circuit.

By adopting the technical scheme, when the conductive circuit is connected with the battery, the first conductive terminal or the second conductive terminal can be directly connected with the battery, so that a plurality of sub-circuits of the conductive circuit are not required to be separated from the battery for connection, the connection process of the conductive circuit and the battery is simplified, and the assembly efficiency of the battery component is improved.

In some embodiments, one side of the plate body in the thickness direction is provided with an insulating layer, and the insulating layer covers the opening side of the part of each groove of the plurality of grooves; or, one side of the plate body along the thickness direction is provided with a plurality of insulating layers which are distributed at intervals, and the opening sides of the parts of the grooves are covered by the insulating layers.

Through adopting above-mentioned technical scheme, the user can set up the cover of the recess of this side, insulating effect that insulating layer or a plurality of insulating layer realize the plate body in the side that the plate body set up the recess.

In some embodiments, one side of the plate body along the thickness direction is provided with a groove and an insulating layer; or, the plate body is provided with a groove and an insulating layer along the opposite two sides of the thickness direction.

By adopting the technical scheme, the separator can realize the series connection of a plurality of batteries of one battery cluster, and also can realize the series connection of a plurality of batteries of each battery cluster in two battery clusters.

In some embodiments, the insulating layer is a structural member having thermal conductivity.

By adopting the technical scheme, on the basis that the insulating layer can realize the insulating and sealing effect on the conducting circuit, the insulating layer also has certain heat-conducting property, so that the heat dissipation effect of the conducting circuit can be better realized.

In some embodiments, a thickness dimension of the conductive line is smaller than a width dimension of the conductive line, and a thickness direction of the conductive line is parallel to a thickness direction of the insulating plate.

Through adopting above-mentioned technical scheme for the conducting wire is the groove of wide flat type, and the thickness direction of conducting wire is on a parallel with the thickness direction of insulating plate, and like this, the conducting wire of being convenient for is outside heat conduction to the insulating board, helps improving the radiating effect of conducting wire.

In a second aspect, an embodiment of the present application provides a battery assembly, including:

a plurality of batteries;

and the electrodes of the battery are electrically connected with the end parts of the conductive circuits.

By adopting the technical scheme, the conductive circuit in the partition plate can be used as a high-voltage circuit, a low-voltage circuit, a signal circuit and the like of the battery assembly, the conductive circuit has a better insulation effect compared with a cable under the protection effect of the insulation plate, when the battery is in severe environments such as thermal runaway, liquid leakage and the like, the insulation plate can avoid the ignition phenomenon caused by the contact of high-temperature high-voltage gas with the conductive circuit as much as possible, and can also avoid the arc discharge phenomenon caused by the backflow of a plurality of conductive circuits caused by leaked liquid as much as possible, so that the potential safety hazard of the battery assembly is effectively reduced.

In some embodiments, any two adjacent batteries are respectively connected with the end part of the conductive circuit of the separator, so that the batteries form series connection, parallel connection or series-parallel combination series-parallel connection.

Through adopting above-mentioned technical scheme to make a plurality of batteries realize electric connection through a plurality of conducting circuits in the baffle, also be the conducting circuit in the baffle can regard as battery pack's high-tension line, the conducting circuit has the better insulating effect that is compared in the cable under the protective action of insulation board, so makes battery pack's high-tension line have higher security performance.

In some embodiments, at least a portion of the conductive traces are used to electrically connect the plurality of batteries, and at least a portion of the conductive traces are used to output a voltage or current signal of the batteries.

Through adopting above-mentioned technical scheme, can effectively improve battery pack's high-voltage line, signal line's security performance.

In a third aspect, an embodiment of the present application provides an energy storage bin, which includes a bin body and a battery assembly, wherein the battery assembly is disposed in the bin body.

Through adopting above-mentioned technical scheme to a plurality of batteries that make the energy storage storehouse realize electric connection through a plurality of conducting circuits in the baffle, make the conducting circuit have better insulating effect, in the battery is in the harsh environment such as thermal runaway, weeping, the phenomenon of striking sparks that the insulating board can avoid high temperature high-pressure gas to contact the conducting circuit and arouse as far as possible, the liquid that can also avoid revealing causes a plurality of conducting circuits to form the backward flow and the arc phenomenon that draws that arouses as far as possible, thereby effectively reduce the potential safety hazard in energy storage storehouse.

In a fourth aspect, an embodiment of the present application provides an energy storage system, which includes an energy storage bin.

Through adopting above-mentioned technical scheme to make a plurality of batteries of energy storage system realize electric connection through a plurality of conducting circuits in the baffle, make the conducting circuit have better insulating effect, in the battery is in the harsh environment such as thermal runaway, weeping, the phenomenon of striking sparks that the insulating board can avoid high temperature high-pressure gas to contact the conducting circuit and arouse as far as possible, the liquid that can also avoid revealing causes a plurality of conducting circuits to form the backward flow and the arc phenomenon that draws that arouses as far as possible, thereby effectively reduce energy storage system's potential safety hazard.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic view of a battery assembly provided in some embodiments of the present application;

FIG. 2 is a schematic view of a battery assembly provided in accordance with other embodiments of the present application;

fig. 3 is an exploded view of a battery of the battery assembly provided in an embodiment of the present application;

FIG. 4 is a front view of a separator plate provided in accordance with certain embodiments of the present application;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 isbase:Sub>A cross-sectional view A-A of the insulating plate of the spacer shown in FIG. 4;

FIG. 7 is a schematic view of the body of the spacer shown in FIG. 5;

FIG. 8 is a schematic view of the plate body of the spacer plate shown in FIG. 6;

fig. 9 is a schematic view of another embodiment of the insulating plate shown in fig. 6.

Wherein, in the figures, the respective reference numerals:

1000-a battery assembly; 100-a separator; 10-an insulating plate; 11-lumen; 111-grooves; 1111-subslot; 12-a plate body; 13-an insulating layer; 20-conductive lines; 21-subline; 30-a first conductive terminal; 40-a second conductive terminal; 200-a battery; 210-a box body; 211-a first housing; 212-a second housing; 220-battery cell.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present application, "a plurality" means two or more, and "two or more" includes two unless specifically defined otherwise. Accordingly, "multiple groups" means more than two groups, including two groups.

In the description of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral with; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three kinds of relationships may exist, for example, a and/or B may mean: there are three cases of A, A and B, and B. In addition, in the present application, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship.

Currently, energy storage systems such as energy storage containers and energy storage electric cabinets become the main product forms of battery energy storage power stations with their high degree of integration and convenient installation modes.

In the related art, in an energy storage system such as an energy storage container or an energy storage electric cabinet, a plurality of batteries are usually electrically connected in series, in parallel, in series-parallel, or in parallel through cables. The series-parallel connection refers to the series connection and the parallel connection in the electrical connection relationship among a plurality of batteries.

Generally, the insulation effect of the cable is poor, when the battery is in severe environments such as thermal runaway and liquid leakage, the insulation effect of the cable is invalid, and then phenomena such as arc discharge and ignition are generated, so that great potential safety hazards exist. For example, when the battery is thermally runaway, the battery may generate a large amount of high-temperature and high-pressure gas, which is directly discharged out of the battery and enters the conductive space where the cable is located, so that the high-temperature and high-pressure gas contacts and even breaks down the cable, thereby causing a sparking phenomenon. For example, when the battery has liquid leakage such as liquid cooling medium leakage and electrolyte leakage, the leaked liquid cooling medium, electrolyte and other liquid can flow into the cable, so that a loop is formed between the cable and the cable, and an arc discharge phenomenon is caused.

Based on the above consideration, in order to solve the problem that the electrical connection leads to great potential safety hazard through the cable formation between a plurality of batteries, the inventor has designed a baffle through extensive research, the baffle that mentions in this application embodiment, through holding a plurality of conducting wires respectively in the inside inner chamber of seting up a plurality of interval distribution of baffle, make the insulation board can block high temperature high-pressure gas and then avoid the phenomenon of striking sparks as far as possible, still make the insulation board can realize isolated between a plurality of conducting wires, and then avoid the arc phenomenon as far as possible, thereby effectively reduce the potential safety hazard that exists above.

The following detailed description is made with reference to the accompanying drawings and examples:

referring to fig. 1, a first aspect of an embodiment of the present application provides a separator 100.

It should be noted that, as shown in fig. 1 and fig. 2, the separator 100 provided in the embodiment of the present application is applied to a battery assembly 1000, and the battery assembly 1000 includes the separator 100 and a plurality of batteries 200. In some embodiments, the separator 100 can be used as a high voltage line between the plurality of cells 200 to realize a series, parallel, or parallel connection between the plurality of cells 200, wherein the parallel connection refers to a circuit structure having both parallel connection and series connection. Wherein a plurality of cells 200 are combined into one cell cluster or a plurality of cell clusters. For example, as shown in fig. 1, a plurality of batteries 200 are combined to form a battery cluster, a separator 100 is disposed on one side of the battery cluster, and the separator 100 serves as a high-voltage line of the battery cluster to realize series connection between the plurality of batteries 200 in the battery cluster, and in other embodiments, the separator 100 can also realize parallel connection or series-parallel connection between the plurality of batteries 200 in the battery cluster. For example, as shown in fig. 2, a plurality of batteries 200 are combined into two battery clusters, a separator 100 is disposed between the two battery clusters, and the separator 100 can be used as a high-voltage line for the two battery clusters to respectively realize series connection between the plurality of batteries 200 in each battery cluster, but of course, in other embodiments, the separator 100 can also respectively realize parallel connection or series-parallel connection between the plurality of batteries 200 in each battery cluster. In other embodiments, the separator 100 can also be used as a low voltage line of a battery cluster, and even the separator 100 can be used as a signal line of the battery cluster to output electric signals such as voltage, current, etc. of the batteries 200 in the battery cluster.

It should be further noted that the battery assembly 1000 is applied to an energy storage bin, the energy storage bin includes the battery assembly 1000 and a bin body, and the battery assembly 1000 is disposed in the bin body. Wherein, the energy storage storehouse is applied to energy storage system, sets up based on energy storage system's kind, and in some occasions, energy storage system can be energy storage container, also can be the energy storage switch board. In some embodiments, the energy storage system may further include other functional compartments, such as a control compartment for managing the battery assembly 1000 to store and output electrical energy, a fire compartment, and the like.

Referring to fig. 3, the battery 200 includes a case 210 and a battery cell 220, the battery cell 220 is accommodated in the case 210, and the case 210 may have various structures. In some embodiments, the case 210 includes a first housing 211 and a second housing 212, and the first housing 211 and the second housing 212 cover each other and together define a space for accommodating the battery cell 220. The first housing 211 may be a hollow structure with an opening at one end, the second housing 212 is a plate-shaped structure, and the second housing 212 covers the opening side of the first housing 211, so that the first housing 211 and the second housing 212 jointly define an accommodating space; alternatively, the first housing 211 and the second housing 212 may be both provided as a hollow structure having an opening at one end, and the opening side of the first housing 211 covers the opening side of the second housing 212, and together define an accommodating space. Of course, the case 210 formed by the first housing 211 and the second housing 212 may have various shapes, such as a cylinder, a rectangular parallelepiped, and the like.

In the battery 200, the battery cell 220 may be a plurality of battery cells 220, and the plurality of battery cells 220 may be connected in series or in parallel or in series-parallel. The plurality of battery cells 220 may be directly connected in series or in parallel or in series-parallel, and the whole body formed by the plurality of battery cells 220 is accommodated in the case 210; of course, a plurality of battery cells 220 may also be connected in series, in parallel, or in series-parallel to form a plurality of battery modules, and then the plurality of battery modules are connected in series, in parallel, or in series-parallel to form a whole, and are accommodated in the box 210. The battery 200 may also include other structures, such as a bus member for achieving electrical connection between the plurality of battery cells 220.

Here, the battery cell 220 refers to a minimum unit that stores and outputs electric energy.

In some embodiments, referring to fig. 4 and 6 together, the separator 100 includes an insulating plate 10 and a plurality of conductive traces 20. The insulating plate 10 is provided with a plurality of cavities 11 therein, and the cavities 11 are distributed at intervals. In the plurality of conductive traces 20, each conductive trace 20 is received in each cavity 11, and an end portion of the conductive trace 20 is used for electrical connection with an external device.

The insulating plate 10 is a plate-shaped structure made of an insulating material not limited to rubber, plastic, or the like, and the insulating plate 10 has good insulating properties. The insulating plate 10 has a certain thickness so that an inner cavity 11 can be opened in the insulating plate 10. The plate-like structure of the insulating plate 10 also allows the insulating plate 10 to isolate liquids such as electrolytes and liquid cooling media from gases.

The conductive circuit 20 may be a conductive wire such as copper, aluminum, etc. embedded in the inner cavity 11, or the conductive circuit 20 may be formed by solidifying a metal liquid such as copper, aluminum, etc. filled in the inner cavity 11, and the conductive circuit 20 has a conductive property.

The end of the conductive line path 20 is used for electrical connection with an external device. It is understood that the inner cavity 11 is opened with an opening exposed to the outside, so that the conductive line 20 in the inner cavity 11 can be electrically connected to an external device through the opening. The inner cavity 11 is used for accommodating the conductive circuit 20, so that the inner cavity 11 is substantially in a strip shape, and the opening can be opened at an end of the inner cavity 11 along the length direction, and certainly can be opened at the middle of the inner cavity 11, and can be specifically designed according to actual application requirements. In some embodiments, the end of the conductive trace 20 may be provided with a conductive terminal, the conductive terminal is exposed outside the inner cavity 11 and is used for electrically connecting with an external device, and the conductive terminal is provided at the opening of the inner cavity 11, so that the conductive terminal and the insulating plate 10 jointly enclose the conductive trace 20, and the conductive trace 20 is prevented from being directly exposed to the outside as much as possible. In other embodiments, the end of the conductive trace 20 may also be exposed outside the internal cavity 11 directly through an opening of the internal cavity 11 to be electrically connected directly with an external device. So configured, the conductive line 20 may replace a cable in the related art for connecting the battery 200. In some embodiments, the conductive trace 20 may be used as a high voltage trace to achieve electrical connection between the batteries 200, for example, as shown in fig. 1 and 4, the batteries 200 are sequentially arranged and combined along the Z-axis direction to form a battery cluster, the insulating board 10 is provided with a plurality of conductive traces 20 distributed at intervals, two ends of each conductive trace 20 are distributed at intervals along the Z-axis direction, in the downward direction of the Z-axis direction, a positive electrode and a negative electrode of a first battery 200 are respectively connected to one end of a first conductive trace 20 and one end of a second conductive trace 20, a positive electrode and a negative electrode of a second battery 200 are respectively connected to the other end of the second conductive trace 20 and one end of a third conductive trace 20, a positive electrode and a negative electrode of a third battery 200 are respectively connected to the other end of the third conductive trace 20 and one end … … of a fourth conductive trace 20, and so on, the plurality of conductive traces 20 implement series connection between the batteries 200, and so on the other end of the first conductive trace 20 and the other end of the last conductive trace 20 are respectively used as a total positive electrode output terminal and a total negative electrode output terminal of the battery cluster. In fig. 4, of the two ends of each conductive line 20, a positive electrode indicated by "+" is connected to the positive electrode of the battery 200, and a negative electrode indicated by "-" is connected to the negative electrode of the battery 200. In other embodiments, the conductive circuit 20 can also be used as a low voltage circuit of the battery cluster, and even the conductive circuit 20 can also be used as a signal circuit of the battery cluster, that is, the conductive circuit 20 is connected to the batteries 200 in the battery cluster to output voltage and current signals of the batteries 200.

The conductive circuit 20 is accommodated in the inner cavity 11, and the insulation board 10 can isolate the conductive circuit 20 from the outside through the insulation performance of the insulation board 10 itself, so that the protection effect on the conductive circuit 20 is realized. Specifically, the insulation between the conductive circuit 20 and the outside by the inner cavity 11 at least includes electrical insulation (i.e. insulation), and may also include the non-circulation of gas, liquid, impurities, dust, and other substances. By way of example, the insulating plate 10 is capable of achieving an electrical insulation effect between the electrically conductive line 20 and an external line, which may be, for example, another line on the cabinet of the energy storage system. In addition, the insulating plate 10 can also effectively block high-temperature and high-pressure gas, thereby preventing the high-temperature and high-pressure gas from directly contacting the conductive circuit 20 or impacting the conductive circuit 20. In addition, the insulating plate 10 can also isolate the conductive circuit 20 from external liquids such as electrolyte and liquid cooling medium.

The plurality of cavities 11 are spaced apart so that the insulating plate 10 achieves an insulating effect between the plurality of cavities 11 by its own structure. Optionally, the number of the conductive traces 20 is the same as that of the inner cavities 11, and the conductive traces 20 are accommodated in the inner cavities 11 in a one-to-one correspondence manner, so that the insulating plate 10 achieves an insulating effect between the conductive traces 20 through its own structure, and based on the insulating property of the insulating plate 10, the insulating effect between the conductive traces 20 is achieved.

When the battery 200 is in thermal runaway, the high-temperature and high-pressure gas generated by the battery 200 cannot enter the insulating plate 10 and further cannot enter the space where the conductive circuit 20 is located, so that the high-temperature and high-pressure gas can be prevented from directly contacting the conductive circuit 20 as much as possible. When the battery 200 is in a liquid leakage state such as a liquid cooling medium and an electrolyte, the liquid cannot simultaneously contact the conductive traces 20 and the external circuit, or the liquid cannot simultaneously contact the conductive traces 20, so that the formation of an electrical loop between the conductive traces 20 and the external circuit can be avoided.

So set up for conducting wire 20 has the better insulating effect that compares in the cable under insulation board 10's protective action, and in battery 200 was in the adverse circumstances such as thermal runaway, weeping, insulation board 10 can avoid high temperature high-pressure gas to contact conducting wire 20 and the phenomenon of striking sparks that arouses as far as possible, can also avoid the liquid of revealing to cause a plurality of conducting wires 20 to form the backward flow and the arc phenomenon that draws that arouses as far as possible to effectively reduce the potential safety hazard.

In some embodiments, referring to fig. 6-8, the insulating plate 10 includes a plate body 12 and an insulating layer 13. The plate body 12 is provided with a plurality of grooves 111 along the side surface in the thickness direction, and the plurality of grooves 111 are distributed at intervals. The insulating layer 13 covers the opening side of the portion of the groove 111, and encloses the groove 111 to form an inner cavity 11.

The plate body 12 is a plate-shaped structure of the insulating plate 10, the plate body 12 is made of an insulating material such as rubber or plastic, and the plate body 12 has good insulating properties and a certain thickness.

The insulating layer 13 may be a plate-like structure made of an insulating material not limited to rubber, plastic, or the like, or may be an insulating coating layer coated on a side surface of the plate body 12 in the thickness direction, the insulating layer 13 having insulating properties.

It is understood that the conductive traces 20 are disposed in the grooves 111, and the insulating layer 13 is disposed on the side surface of the board body 12 having the grooves 111 in the thickness direction, and covers the opening side of the portion of the grooves 111. In other words, the insulating layer 13 covers the conductive traces 20 to cover the conductive traces 20 in the groove 111, so as to insulate the conductive traces 20 from each other and the external environment. Wherein, the insulating layer 13 covers the opening side of the part of the groove 111, so that the end of the conductive trace 20 can be located at the part of the groove 111 not covered by the insulating layer 13, and thus, the end of the conductive trace 20 can be exposed out of the groove 111 or connected with the conductive terminal.

The thickness direction is the Y-axis direction illustrated in fig. 6 and 8, the Y-axis direction is perpendicular to the Z-axis direction, and the Z-axis direction may be the length direction or the width direction of the plate body 12.

Through adopting above-mentioned technical scheme, set up recess 111 in the side of plate body 12 along thickness direction, insulating layer 13 covers the opening side of the part of recess 111 to cover conducting wire 20 in recess 111, be so convenient for realize conducting wire 20 and set up the operation in inner chamber 11.

In some embodiments, referring to fig. 5 to 8, the groove 111 includes a plurality of sub-grooves 1111 spaced apart from each other, and the insulating layer 13 covers the opening side of a portion of the sub-grooves 1111. The conductive line 20 includes a plurality of sub-lines 21 connected in parallel, each sub-line 21 is provided in each sub-groove 1111, and an end of each sub-line 21 is used for electrical connection to an external device.

It will be understood herein that the insulating layer 13 covers the open side of a portion of each subslot 1111 of the plurality of subslots 1111 of the groove 111 and defines the inner cavity 11 described above in cooperation with the plurality of subslots 1111 of the groove 111. In this way, the end of the sub-wire 21 can be located at a portion of the sub-slot 1111 not covered by the insulating layer 13 to be exposed outside the sub-slot 1111 or connected with a conductive terminal.

It is also understood that the plurality of sub-lines 21 of the conductive trace 20 are the same in number as the plurality of sub-grooves 1111 of the groove 111, and the plurality of sub-lines 21 of the conductive trace 20 are disposed in the plurality of sub-grooves 1111 of the groove 111 in a one-to-one correspondence.

By adopting the technical scheme, the conductive circuit 20 is divided into the plurality of sub-circuits 21 which are distributed at intervals and arranged in parallel, and each sub-circuit 21 is respectively arranged in each sub-groove 1111, so that the beam splitting and heat dissipation of the conductive wire bundle can be realized on the basis of meeting the overcurrent requirement of the conductive circuit 20, and compared with the conductive circuit 20 which is not divided into the plurality of sub-circuits 21, the heat accumulation of the conductive circuit 20 can be reduced, the heat dissipation capability of the conductive circuit 20 can be effectively improved, and the problem of insufficient heat dissipation capability of the conductive circuit 20 caused by the closed arrangement of the inner cavity 11 can be solved.

In some embodiments, referring to fig. 4, a first conductive terminal 30 and a second conductive terminal 40 are respectively disposed at two ends of the conductive trace 20, the first conductive terminal 30 is connected to one end of the sub-traces 21 of the conductive trace 20, and the second conductive terminal 40 is connected to the other end of the sub-traces 21 of the conductive trace 20.

The first and second

conductive terminals

30 and 40 may be configured as metal members not limited to a sheet shape, a block shape, a filament shape, a sleeve shape, etc., and the first and second

conductive terminals

30 and 40 may be fixed to the battery 200 by welding, bolt fixing, inserting, etc. For example, when the conductive circuit 20 is used to connect two batteries 200 in series, the first conductive terminal 30 of the conductive circuit 20 is fixed to the positive electrode of one of the batteries 200 by welding, bolting, plugging, and the second conductive terminal 40 is fixed to the negative electrode of the other battery 200 by welding, bolting, plugging, and the like.

Among them, as shown in fig. 1, of the first and second

conductive terminals

30 and 40, the one indicated as "+" is used for connecting with the positive electrode of the battery 200, and the one indicated as "-" is used for connecting with the negative electrode of the battery 200, which facilitates the connection of the battery 200 with the conductive line 20.

By adopting the above technical scheme, when the conductive circuit 20 is connected with the battery 200, the first conductive terminal 30 or the second conductive terminal 40 can be directly connected with the battery 200, so that a plurality of sub-circuits 21 of the conductive circuit 20 do not need to be separated from the battery 200 for connection, the connection process of the conductive circuit 20 and the battery 200 is simplified, and the assembly efficiency of the battery assembly 1000 is improved.

Of course, according to practical application requirements, the first conductive terminal 30 and the second conductive terminal 40 may not be disposed at two ends of the conductive trace 20, that is, the conductive trace 20 is directly connected to the battery 200 through two ends of the sub-trace 21, wherein, in the two different embodiments, the embodiment having the first conductive terminal 30 and the second conductive terminal 40 is a preferred embodiment.

In some embodiments, referring to fig. 6, one side of the board body 12 in the thickness direction is provided with an insulating layer 13, and the insulating layer 13 covers an opening side of a portion of each groove 111 of the plurality of grooves 111.

The insulating layer 13 covers the open side of a portion of each groove 111, which facilitates the end of the conductive line 20 to be used for electrical connection with an external device.

It can be understood that, one side of the board body 12, on which the groove 111 is formed, is provided with one insulating layer 13, and the insulating layer 13 covers all the grooves 111 on the side of the board body 12, so as to simultaneously cover all the grooves 111 on the side of the board body 12, and further to cover all the conductive circuits 20 on the side of the board body 12, without separately covering each groove 111 and the conductive circuit 20 therein, which simplifies the operation of disposing the partition board 100.

In other embodiments, one side of the plate body 12 in the thickness direction is provided with a plurality of insulating layers 13 distributed at intervals, and each insulating layer 13 covers the opening side of a portion of each groove 111.

It can be understood that, a plurality of insulating layers 13 are disposed on one side of the board body 12, where the groove 111 is formed, and the insulating layers 13 respectively cover an opening side of a portion of each groove 111 of the plurality of grooves 111 on the side of the board body 12 to respectively cover the plurality of conductive traces 20 on the side of the board body 12, so as to achieve a covering effect of all the conductive traces 20 on the side of the board body 12, that is, the plurality of grooves 111 need to be separately covered to achieve a covering effect through different insulating layers 13.

Through adopting above-mentioned technical scheme, the user can set up an insulating layer 13 or a plurality of insulating layer 13 and realize the cover of the recess 111 of this side of plate body 12, insulating effect at the side that plate body 12 set up recess 111, realizes the cover, the insulation of recess 111 through a plurality of insulating layers 13, still is favorable to dismantling corresponding insulating layer 13 and maintain when local circuit breaks down.

In some embodiments, referring to fig. 6 and 8, a groove 111 and an insulating layer 13 are formed on one side of the board body 12 along the thickness direction.

It can be understood that one side of the board body 12 along the thickness direction is provided with a groove 111, and the insulating layer 13 is disposed on the side of the board body 12 having the groove 111 and covers the opening side of the portion of the groove 111 to achieve the covering effect of the conductive circuit 20 in the groove 111, that is, the conductive circuit 20 is disposed on one side of the partition board 100 along the thickness direction.

When the separator 100 is applied to the battery assembly 1000, as shown in fig. 1, the separator 100 is disposed at one side of one battery cluster, and the plurality of conductive traces 20 of the separator 100 are used to accomplish the electrical connection between the plurality of batteries 200 in the battery cluster.

In other embodiments, as shown in fig. 9, the groove 111 and the insulating layer 13 are not only provided on one side of the plate body 12 in the thickness direction, but the groove 111 and the insulating layer 13 are provided on both opposite sides of the plate body 12 in the thickness direction.

It can be understood that, the two opposite sides of the plate body 12 along the thickness direction are both provided with the grooves 111, the two opposite sides of the plate body 12 along the thickness direction are both covered with the insulating layers 13, the insulating layers 13 on the two sides of the plate body 12 respectively cover the opening sides of the parts of the grooves 111 on the two sides of the plate body 12 in a one-to-one correspondence manner, so as to respectively realize the insulating sealing of the conductive circuits 20 in the grooves 111 on the two sides of the plate body 12, that is, the two opposite sides of the partition board 100 along the thickness direction are both provided with the conductive circuits 20.

When the separator 100 is applied to the battery assembly 1000, as shown in fig. 2, the separator 100 is disposed between two battery clusters, the conductive traces 20 of one side of the separator 100 are used to accomplish the electrical connection between the plurality of batteries 200 of one of the battery clusters, and the conductive traces 20 of the other side of the separator 100 are used to accomplish the electrical connection between the plurality of batteries 200 of the other battery cluster. In this case, the partition board 100 should have a certain thickness so that the grooves 111 on the opposite sides of the partition board 100 have a certain distance therebetween, thereby preventing the conductive traces 20 on the opposite sides of the partition board 100 from affecting each other as much as possible.

By adopting the technical scheme, the separator 100 can realize the electrical connection among a plurality of batteries 200 of one battery cluster, and also can realize the electrical connection among a plurality of batteries 200 of each of two battery clusters.

In some embodiments, the insulating layer 13 is a structural member having thermal conductivity.

It will be appreciated that the insulating layer 13 has both thermal and insulating properties, for example, the insulating layer 13 may be a thermally conductive glue.

So set up, on insulating layer 13 can realize the basis to the insulating seal effect of conducting wire 20, still have certain heat conductivility, can realize conducting wire 20's radiating effect like this better.

In some embodiments, referring to fig. 6 and 8, the thickness of the conductive trace 20 is smaller than the width of the conductive trace 20, and the thickness direction of the conductive trace 20 is parallel to the thickness direction of the insulating board 10.

Through adopting above-mentioned technical scheme for conducting wire 20 is the structure of wide flat shape, and the thickness direction of conducting wire 20 is on a parallel with the thickness direction of insulation board 10, and like this, the conducting wire 20 of being convenient for dispels the heat to the insulation board 10 outside, helps improving conducting wire 20's radiating effect.

In some embodiments, the depth of the groove 111 is smaller than the width of the groove 111, such that the thickness of the conductive trace 20 filled in the groove 111 is smaller than the width of the conductive trace 20.

Optionally, the depth dimension of the sub-groove 1111 is smaller than the width dimension of the sub-groove 1111, so that the depth dimension of the groove 111 is smaller than the width dimension of the groove 111. Specifically, as shown in fig. 8, the depth dimension of the sub-groove 1111 refers to a dimension of the sub-groove 1111 in the Y-axis direction, as indicated by a dimension L1 in the drawing, and the width dimension of the sub-groove 1111 refers to a dimension of the sub-groove 1111 in the X-axis direction, as indicated by a dimension L2 in the drawing. Wherein, Y-axis is vertical to X-axis, and Y-axis is vertical to Z-axis respectively with X-axis. As shown in fig. 4 and 8, the Y axis refers to the thickness direction of the plate body 12, and the X axis and the Z axis are the width direction and the length direction of the plate body 12, respectively, but of course, the X axis size and the Z axis size may be the length direction and the width direction of the plate body 12, respectively.

By adopting the above technical scheme, the sub-groove 1111 is a wide and flat groove, that is, the sub-groove 1111 has a smaller depth dimension compared with the width dimension, so that the sub-line 21 in the sub-groove 1111 can better dissipate heat through the insulating layer 13, and the heat dissipation effect of the conductive line 20 is effectively improved.

Referring to fig. 1 and 2 together, a second aspect of the embodiment of the present application provides a battery assembly 1000, where the battery assembly 1000 includes a separator 100 and a plurality of batteries 200. The partition board 100 in this embodiment may be the same as the partition board 100 in any of the above embodiments, and specific reference is made to the description of the partition board 100 in any of the above embodiments, which is not repeated herein.

Specifically, the electrodes of the battery 200 are electrically connected with the ends of the conductive traces 20 to achieve electrical connection of the battery 200 and the separator 100. Wherein the electrode may be a positive electrode or a negative electrode of the battery 200.

By adopting the above technical solution, the conductive circuit 20 in the separator 100 is electrically connected with the electrode of the battery 200, so that the conductive circuit 20 in the separator 100 can be used as a high-voltage circuit, a low-voltage circuit or a signal circuit of the battery assembly 1000. The conducting circuit 20 has better insulating effect than a cable under the protection effect of the insulating plate 10, when the battery 200 is in severe environments such as thermal runaway and liquid leakage, the insulating plate 10 can avoid the ignition phenomenon caused by the fact that high-temperature and high-pressure gas contacts the conducting circuit 20 as far as possible, and can also avoid the arc discharge phenomenon caused by the fact that leaked liquid causes the multiple conducting circuits 20 to form backflow as far as possible, so that the potential safety hazard of the battery assembly 1000 is effectively reduced.

In some embodiments, referring to fig. 1 and fig. 2, any two adjacent batteries 200 are respectively connected to the end of the conductive trace 20, so that the plurality of batteries 200 are connected in series, in parallel, or in a series-parallel combination.

It is understood that the conductive line 20 in the separator 100 can be used as a high voltage line in this embodiment. For example, as shown in fig. 1, a plurality of batteries 200 are combined to form a battery cluster, in the battery cluster, a positive electrode and a negative electrode of a first battery 200 are respectively connected to one end of a first conductive circuit 20 and one end of a second conductive circuit 20, a positive electrode and a negative electrode of a second battery 200 are respectively connected to the other end of the second conductive circuit 20 and one end of a third conductive circuit 20, a positive electrode and a negative electrode of a third battery 200 are respectively connected to the other end of the third conductive circuit 20 and one end … … of a fourth conductive circuit 20, and so on, the plurality of conductive circuits 20 realize series connection among the plurality of batteries 200 in the battery cluster, and the other end of the first conductive circuit 20 and the other end of the last conductive circuit 20 are respectively used as a positive electrode total output terminal and a negative electrode total output terminal of the battery cluster. When a plurality of batteries 200 are combined to form two battery clusters, the plurality of conductive traces 20 of the separator 100 may also realize the series connection of each of the two battery clusters as shown in fig. 2. In addition, the plurality of conductive traces 20 in the separator 100 may also be used to achieve parallel connection of the plurality of batteries 200, or to form series and parallel connection between the plurality of batteries 200.

By adopting the above technical scheme, so that the plurality of batteries 200 are electrically connected through the plurality of conductive circuits 20 in the partition board 100, that is, the conductive circuits 20 are used as high-voltage circuits of the battery assembly 1000, and the conductive circuits 20 have better insulation effects compared with cables under the protection effect of the insulating board 10, so that the high-voltage circuits of the battery assembly 1000 have better insulation effects compared with cables, and the potential safety hazard of the battery assembly 1000 can be effectively reduced.

In some embodiments, at least a portion of the conductive traces 20 are used to connect the batteries 200 in series, parallel, or series-parallel, and a portion of the conductive traces 20 are used to output a voltage or current signal of the batteries 200.

It is understood that, among the plurality of conductive traces 20 of the separator 100, a portion of the conductive traces 20 serves as a high voltage trace to electrically connect the plurality of batteries 200, and another portion of the conductive traces 20 serves as a signal trace to output voltage and current signals of the batteries 200.

By adopting the above technical scheme, part of the plurality of conductive lines 20 passing through the separator 100 can be used as signal lines, and part can be used as high voltage lines, so that the safety performance of the high voltage lines and the signal lines of the battery assembly 1000 can be effectively improved.

In addition, among the plurality of conductive traces 20 of the separator 100, there may be a portion of the conductive trace 20 as a low voltage trace of the battery 200.

The third aspect of the present application provides an energy storage bin, which comprises a bin body and a battery assembly 1000, wherein the battery assembly 1000 is arranged in the bin body. The battery assembly 1000 in this embodiment may be the same as the battery assembly 1000 in any of the above embodiments, and please refer to the related description of the battery assembly 1000 in any of the above embodiments, which is not repeated herein.

Through adopting above-mentioned technical scheme, so that a plurality of batteries 200 in the energy storage storehouse realize electric connection through a plurality of conducting circuits 20 in the baffle 100, make conducting circuits 20 have better insulating effect, be in thermal runaway, in the rugged environment such as weeping when battery 200, insulation board 10 can avoid high temperature high pressure gas to contact conducting circuits 20 and the phenomenon of striking sparks that arouses as far as possible, can also avoid the liquid of revealing to cause a plurality of conducting circuits 20 to form the backward flow and the arc phenomenon that draws that arouses as far as possible, thereby effectively reduce the potential safety hazard in energy storage storehouse.

The fourth aspect of the application provides an energy storage system, which comprises the energy storage bin.

Wherein, based on energy storage system's kind setting, in some occasions, energy storage system can be energy storage container, also can be the energy storage switch board.

In some embodiments, the energy storage system may further include other functional cabinets, such as a control cabinet, a fire-fighting cabinet, and the like, and the control cabinet is used for managing the battery assembly 1000 to store and output electric energy.

Through adopting above-mentioned technical scheme, so that a plurality of batteries 200 of energy storage system realize electric connection through a plurality of conducting circuits 20 in the baffle 100, make conducting circuits 20 have better insulating effect, be in thermal runaway, in the rugged environment such as weeping when battery 200, insulation board 10 can avoid high temperature high-pressure gas to contact conducting circuits 20 and the phenomenon of striking sparks that arouses as far as possible, can also avoid the liquid of revealing to cause a plurality of conducting circuits 20 to form the backward flow and the arc phenomenon that arouses as far as possible, thereby effectively reduce energy storage system's potential safety hazard.

The present application is intended to cover various modifications, equivalent arrangements, and adaptations of the present application without departing from the spirit and scope of the present application.

Claims

1. A separator plate, comprising:

and the end parts of the conductive circuits are used for being electrically connected with external equipment.

2. The separator of claim 1, wherein the insulating plate comprises:

the insulating layer covers the opening side of the part of the groove and surrounds the groove to form the inner cavity.

3. The separator of claim 2 wherein said recess comprises a plurality of spaced sub-slots, said insulating layer covering open sides of portions of said sub-slots; the conductive circuit comprises a plurality of sub-circuits connected in parallel, each sub-circuit is correspondingly arranged in each sub-groove, and the end parts of the sub-circuits are used for being electrically connected with external equipment.

4. The separator plate of claim 3 wherein said conductive trace has first and second conductive terminals at opposite ends thereof, said first conductive terminal being connected to one end of said plurality of sub-traces of said conductive trace and said second conductive terminal being connected to the other end of said plurality of sub-traces of said conductive trace.

5. The partition according to claim 2, wherein one side of said plate body in a thickness direction is provided with one of said insulating layers covering an opening side of a portion of each of said plurality of said grooves; or, a plurality of insulating layers distributed at intervals are arranged on one side of the plate body in the thickness direction, and the insulating layers cover the opening sides of the parts of the grooves.

6. The separator of claim 2 wherein said plate body is provided with said groove and said insulating layer on one side in the thickness direction; or, the two opposite sides of the plate body in the thickness direction are provided with the grooves and the insulating layers.

7. The separator of any of claims 2-6, wherein said insulating layer is a structural member having thermal conductivity.

8. The separator according to any one of claims 1 to 6, wherein a thickness dimension of the conductive line is smaller than a width dimension of the conductive line, and a thickness direction of the conductive line is parallel to a thickness direction of the insulating plate.

9. A battery assembly, comprising:

a plurality of batteries;

the separator of any of claims 1-8, an electrode of the battery being electrically connected to an end of the conductive trace.

10. The battery pack according to claim 9, wherein any two adjacent batteries are respectively connected to the ends of the conductive traces of the separator, so that a plurality of the batteries are connected in series, in parallel, or in a combination of series and parallel.

11. The battery pack according to claim 9, wherein at least a portion of the conductive traces are used to electrically connect the plurality of batteries, and at least a portion of the conductive traces are used to output a voltage or current signal of the batteries.

12. An energy storage bin comprising a bin body and a battery assembly as recited in any one of claims 9-11, wherein the battery assembly is disposed in the bin body.

13. An energy storage system comprising the energy storage cartridge of claim 12.