CN115312911A - Energy storage battery module and battery energy storage module - Google Patents

Abstract

The invention provides an energy storage battery module and a battery energy storage module, relates to the technical field of cooling of batteries, and aims to solve the problem that each battery monomer is cooled unevenly. Energy storage battery module, including heat transfer runner and a plurality of battery cluster, the battery cluster includes at least one battery monomer, and the heat transfer runner includes length to runner and width to the runner, and length is connected to the runner with the width to the runner, and the opposite flank of two adjacent battery clusters all laminates to the runner with length, and the surface of the length direction looks homonymy of two adjacent battery clusters all laminates to the runner with the width. The energy storage battery module provided by the invention can exchange heat of the battery monomer more uniformly.

Description

Energy storage battery module and battery energy storage module

Technical Field

The invention relates to the technical field of battery cooling, in particular to an energy storage battery module and a battery energy storage module.

Background

Usually, the energy storage battery module adopts air cooling heat dissipation or liquid cooling heat dissipation, and the air cooling heat dissipation efficiency is relatively low, so that the high-rate charging and discharging heat dissipation requirement of the energy storage battery module is difficult to meet. Most manufacturers adopt the liquid cooling radiating mode of module bottom single direction at present, and the heat that the single liquid cooling radiating mode in bottom of energy storage battery module was taken away is limited, and causes the too big problem of difference in temperature about the energy storage battery monomer is inside easily, and to electric core large in quantity, the coolant flow is through the condition of route overlength, and the uniformity of different positions electric core temperature also is difficult to obtain guaranteeing, and the temperature uniformity is poor to the free injury of battery great. Therefore, an energy storage battery module is needed, which can solve the problems of high heat dissipation requirement of heat generation in the high-rate quick charging process of the battery cell and poor temperature consistency caused by too long multiple flow channels of the battery cell.

Disclosure of Invention

The invention provides an energy storage battery module to solve the technical problem of uneven cooling of each battery cell in the prior art.

The energy storage battery module comprises a heat exchange flow channel and a plurality of battery strings, wherein each battery string comprises at least one battery monomer, each heat exchange flow channel comprises a length direction flow channel and a width direction flow channel, the length direction flow channels are connected with the width direction flow channels, opposite side surfaces of two adjacent battery strings are attached to the length direction flow channels, and the surfaces of the two adjacent battery strings, which are on the same side in the length direction, are attached to the width direction flow channels.

The energy storage battery module has the beneficial effects that:

adopt length to runner and the width that the laminating is in the same side of length direction side of two adjacent battery strings to the scheme that the runner is connected to the width to such length makes up to runner and width to the runner, to the energy storage battery module including the many strings of battery strings that distribute side by side, can realize not only can passing through the heat transfer runner to its relative side and exchanging heat to every two adjacent strings of battery strings, in addition at the side at battery string length direction both ends, all can cool off. Moreover, compared with the scheme that the heat exchange flow channel is arranged on the bottom plate to exchange heat only to the bottom surface of the battery monomer in the prior art, the heat exchange area is larger, and the heat exchange is more uniform. Compare snakelike heat transfer runner among the prior art, can only carry out the heat transfer to the side of a certain battery cluster length direction one end, can have bigger heat transfer area to the heat transfer is more thorough.

In a preferred technical scheme, the length direction flow channel comprises two length direction sub flow channels which are adjacently arranged side by side, the two length direction sub flow channels form a reverse bevel angle, and the reverse bevel angle and the width direction flow channel are respectively positioned at two ends of the length direction sub flow channels.

In a preferred embodiment, the width direction flow channels on the same side in the length direction of the battery string between the two length direction flow channels are connected.

In a preferred technical scheme, in the plurality of length-direction flow channels, part of the reverse folded angles are located at one end of the battery string, and part of the reverse folded angles are located at the other end of the battery string.

In a preferred technical scheme, the reverse break angles of the adjacent length-direction flow channels are positioned at two ends of the battery string in the length direction.

In the preferred technical scheme, the heat exchange flow channel is formed by processing a pipe, and the inlet and the outlet of the heat exchange flow channel are positioned on the same side of all the battery strings.

In a preferred technical scheme, an inlet and an outlet of the heat exchange flow channel are adjacently arranged.

In a preferred technical scheme, the energy storage battery module further comprises a bottom plate, and the bottom surface of the heat exchange flow channel is fixedly connected to the bottom plate.

In a preferred technical scheme, the bottom surface of the heat exchange flow channel is bonded to the bottom plate through an adhesive.

The second objective of the present invention is to provide a battery energy storage module, so as to solve the technical problem of uneven cooling of each battery cell in the prior art.

The invention provides a battery energy storage module which comprises the energy storage battery module.

By arranging the energy storage battery module in the battery energy storage module, correspondingly, the battery energy storage module has all the advantages of the energy storage battery module, and the description is omitted.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the background art of the present invention, the drawings used in the description of the embodiments or the background art will be briefly described below, it is obvious that the drawings in the description below are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a top view of a heat exchange flow channel in an energy storage battery module according to an embodiment of the invention;

fig. 2 is a schematic perspective view of an energy storage battery module according to an embodiment of the present invention;

fig. 3 is a schematic perspective view illustrating a three-dimensional structure of an energy storage battery module according to an embodiment of the invention after a single battery is taken out;

fig. 4 is a top view of a heat exchange flow channel in an energy storage battery module according to another implementation manner of the present invention;

fig. 5 is a top view of a heat exchange flow channel in an energy storage battery module according to another implementation manner of the invention;

fig. 6 is a perspective exploded view of an energy storage battery module according to an embodiment of the invention.

Description of the reference numerals:

10-a heat exchange flow channel; 11-an inlet; 12-an outlet; 13-lengthwise flow channels; 14-flow channel in width direction; 15-length-wise sub-channels; 16-reverse dog-earning; 17-first category length direction flow channels; 18-second class length-wise flow channels;

20-a battery cell; 30-bottom plate.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The first embodiment is as follows:

fig. 1 is a top view of a heat exchange flow channel in an energy storage battery module according to an embodiment of the invention; fig. 2 is a schematic perspective view of an energy storage battery module according to an embodiment of the present invention; fig. 3 is a schematic perspective view illustrating a three-dimensional structure of an energy storage battery module according to an embodiment of the invention after a single battery is taken out; as shown in fig. 1 to fig. 3, the energy storage battery module provided in an embodiment of the present invention includes a heat exchange flow channel 10 and a plurality of battery strings, each battery string includes at least one battery cell 20, the heat exchange flow channel 10 includes a length direction flow channel 13 and a width direction flow channel 14, the length direction flow channel 13 is connected to the width direction flow channel 14, opposite side surfaces of two adjacent battery strings are both attached to the length direction flow channel 13, and surfaces of two adjacent battery strings on the same side in the length direction are both attached to the width direction flow channel 14.

Specifically, as shown in fig. 1, taking the battery cell 20 as a hard-shell battery cell as an example, each battery string has two hard-shell battery cells, each hard-shell battery cell is generally rectangular, the largest surface of each hard-shell battery cell forms the side surface of the battery string opposite to the other battery strings, that is, the electrode portions of the two hard-shell battery cells are both arranged upward, and the surface with the smaller area, out of the non-electrode-located surface and the four opposite surfaces of each hard-shell battery cell, is attached to the corresponding surface of the other hard-shell battery cell. Therefore, the battery string can have a larger surface to contact with the heat exchange flow channel 10, and the cooling effect on the battery cells 20 is improved.

The definition of the longitudinal flow channel 13 and the width flow channel 14 is defined based on whether the flow channels are in the longitudinal direction or the width direction of the battery string.

As described above, in each string of battery strings, the surface with the largest area of the hard shell battery cell forms the side surface of the battery string, and then, when viewed from the perspective of fig. 1, the long side of the surface where the electrode is located in the surface with the largest area, the long side of the surface where the electrode is located is multiplied by two, which is the dimension of the battery string in one dimension, and the short side of the surface where the electrode is located is the dimension of the battery string in the other dimension, which is obviously, the dimension of the former is significantly larger than that of the latter. Therefore, the dimension of the former is the length direction of the battery string. Correspondingly, the dimension of the latter is the width direction of the battery string. The flow channel located in the longitudinal direction of the cell string is the longitudinal flow channel 13, and the flow channel located in the width direction of the cell string is the width flow channel 14.

In other implementations, the battery string may include only one battery cell 20. If the battery cell is a hard-shell battery cell, the side surface with the largest area of the hard-shell battery cell is the opposite surface between the adjacent battery strings, and the lengthwise flow channel 13 is arranged between the side surfaces.

The length direction flow channel 13 is connected with the width direction flow channel 14, and the surfaces of the two adjacent strings of battery strings on the same side in the length direction are both attached to the width direction flow channel 14, which means that, taking fig. 1 as an example, the first length direction flow channel 13 from top to bottom, the right end of the first length direction flow channel 13 is connected with the width direction flow channel 14 located above and below the first length direction flow channel in fig. 1, and the first length direction flow channel 13 and the two width direction flow channels 14 form a shape of an english letter T-shaped clockwise rotated by 90 degrees. In other words, the two widthwise flow paths 14 connected to the same lengthwise flow path 13 are located on the same side in the lengthwise direction of the battery string.

The scheme that the length direction flow channel 13 is connected with the width direction flow channel 14 attached to the same side face of the length direction side of the two adjacent battery strings is adopted, the length direction flow channel 13 and the width direction flow channel 14 are combined, and for the energy storage battery module comprising the multiple battery strings distributed side by side, the heat exchange of the opposite side faces of each two adjacent battery strings through the heat exchange flow channel 10 can be realized, and the side faces at the two ends of the battery strings in the length direction can be cooled. And, compare in prior art set up the heat transfer runner at the bottom plate and only carry out the scheme of heat transfer to the free bottom surface of battery, heat transfer area is bigger, and the heat transfer is more even. Compared with the snake-shaped heat exchange flow channel 10 in the prior art, the heat exchange can be only carried out on the side face of one end of a certain battery string in the length direction, the heat exchange area can be larger, and therefore the heat exchange is more thorough.

As shown in fig. 1 to 3, preferably, the lengthwise flow channel 13 includes two lengthwise flow channels 15 adjacently disposed side by side, the two lengthwise flow channels 15 form a reverse bevel 16, and the reverse bevel 16 and the widthwise flow channel 14 are respectively located at two ends of the lengthwise flow channels 15.

Specifically, in the above embodiment, the battery cell 20 is a hard-shell battery cell, and the cross section of the battery cell 20 is rectangular, so the longitudinal sub-flow passage 15 is linear. The reverse bevel 16 is a 180 ° bevel provided in two adjacent side-by-side length sub-flow channels 15. If the battery cell 20 is a cylindrical battery cell, part of the longitudinal sub-flow passage 15 may be an arc shape that fits the surface of the cylindrical battery cell, and the rest may connect the arc shapes by a straight line or a rounded chamfer. At the same end of the two length sub-channels 15, for example, an arc transition of more than 180 ° can be provided to connect the two length sub-channels 15.

In addition, it can be defined that in each of the lengthwise sub-channels 15, the end where the reverse bevel 16 is located is a head portion, and the end connected to the widthwise sub-channel 14 is a tail portion.

Further, the height of the length sub-flow channels 15 may be equal to the height of the battery cell 20, and each length sub-flow channel 15 may contact, for example, the side with the largest area of the hard-shell battery cell, to perform heat exchange, thereby improving the heat exchange efficiency.

In another implementation, the flow direction at different height positions of the length direction flow channel 13 may be different, for example, taking the length direction flow channel 13 as a harmonica pipe as an example, if the harmonica pipe includes 8 sub-pipes arranged in parallel in the vertical direction, the upper four sub-pipes may be in a state of flowing from the left side to the right side in fig. 1, and the lower four sub-pipes may be in a state of flowing from the right side to the left side in fig. 1. Of the lengthwise flow channels 13, only the upper four sub-channels communicate with the upstream widthwise flow channel 14, and only the lower four sub-channels communicate with the downstream widthwise flow channel 14.

As shown in fig. 1 to 3, preferably, two lengthwise flow channels 13 are connected to the flow channel 14 at the same side in the lengthwise direction of the battery string.

Namely, the two T-shaped characters are arranged side by side in the same direction and form the shape of the Greek letter pi with the stroke not bent.

Fig. 4 is a top view of a heat exchange flow channel in an energy storage battery module according to another implementation manner of the invention; as shown in fig. 4, for example, in addition to the later-described implementation, in another implementation, for an energy storage battery module including a plurality of battery strings arranged in parallel, the tail portions of the length-wise flow channels 13 are located on the same side from the energy storage battery module, and the head portions of the length-wise flow channels 13 are located on the other side. Therefore, from the outside of the overall rectangular energy storage battery module, the remaining heat exchange flow channels 10 may wrap other exposed side surfaces of the battery string except for the width-direction flow channels 14 connecting the length-direction flow channels 13, which are located at one side of the energy storage battery module, for example, long sides.

As shown in fig. 1 to 3, it is preferable that a part of the reverse bevel 16 is located at one end of the cell string and a part of the reverse bevel 16 is located at the other end of the cell string in the plurality of lengthwise flow channels 13.

The length direction channels 13 at the same end of the battery string with the reverse break angle 16 can be connected through the width direction channel 14, so that in an energy storage battery module, fluid entering from the inlet 11 of the heat exchange channel 10 can enter the length direction channel 13 first to exchange heat for part of the battery strings, so that the fluid with strong heat exchange capacity exchanges heat for the battery strings needing heat exchange more, and the battery strings are maintained at proper temperature.

Fig. 5 is a top view of a heat exchange flow channel in an energy storage battery module according to another implementation manner of the present invention; as shown in fig. 5, for example, if the energy storage battery module is applied to an alpine region, the thermal insulation environment of two strings of battery strings located at the outermost side is more unfavorable for an energy storage battery module with multiple strings of battery strings arranged side by side, for example, including the 1 st to 10 th strings of battery strings that are adjacent in sequence. I.e., the 1 st and 10 th strings are less favorable in heat-insulating environment, and the 2 nd and 9 th strings are slightly better. The thermal insulation environment of the battery strings from the 3 rd string to the 8 th string is similar. If a relatively hot fluid is introduced into the heat exchange flow channels 10, the battery cells 20 are heated to a suitable temperature. The inlet 11 of the heat exchange flow channel 10 can be firstly communicated with the length direction flow channel 13 of the adjacent 1 st and 2 nd battery strings and the length direction flow channel 13 of the adjacent 9 th and 10 th battery strings, that is, the two length direction flow channels 13 are at the same side at the tail part. Then, the heat exchange flow channel 10 sequentially includes the 8 th and 9 th adjacent lengthwise flow channels 13, the 7 th and 8 th adjacent lengthwise flow channels 13 \8230, and the 2 nd and 3 rd adjacent lengthwise flow channels 13, and the end portions of these lengthwise flow channels 13 are on the other side.

The reverse dog-ear 16 of part in length to runner 13 sets up the one end at the battery cluster, and the part sets up the other end at the battery cluster, can increase the flexibility ratio that length was arranged to runner 13 to satisfy the needs of energy storage battery module thermal management under the different situation.

As shown in fig. 1 to 3, it is preferable that the reverse corners 16 of the adjacent lengthwise flow channels 13 are located at both ends in the lengthwise direction of the cell string.

For example, the energy storage battery module includes 1 st to 10 th battery strings sequentially adjacent to each other in sequence, the lengthwise flow channels 13 having roots on the right side in fig. 1 are provided between the opposite side surfaces of the 1 st and 2 nd battery strings, between the opposite side surfaces of the 3 rd and 4 th battery strings, between the opposite side surfaces of the 5 th and 6 th battery strings, between the opposite side surfaces of the 7 th and 8 th battery strings, and between the opposite side surfaces of the 9 th and 10 th battery strings, and the lengthwise flow channels 13 having roots on the left side in fig. 1 are provided between the opposite side surfaces of the 2 nd and 3 rd battery strings, between the opposite side surfaces of the 4 th and 5 th battery strings, between the opposite side surfaces of the 6 th and 7 th battery strings, and between the opposite side surfaces of the 8 th and 9 th battery strings.

That is, in the heat exchange flow channel 10, the first category length direction flow channel 17 and the second category length direction flow channel 18 are included, along the direction from the inlet 11 to the outlet 12 of the heat exchange flow channel 10, the first category length direction flow channel 17 is located at the upstream of all the second category length direction flow channels 18, the first category length direction flow channel 17 is only arranged in a plurality of battery strings arranged side by side, and the first category length direction flow channels 17 are arranged at intervals of every two battery strings in a plurality of battery strings between the second battery strings respectively from the head end to the tail end of the battery string arrangement direction. The second category of lengthwise flow channels 18 are disposed between the opposite sides of the remaining adjacent cell strings.

The layout mode of the length direction flow channel 13 is suitable for energy storage battery modules in regions with higher temperature, and due to the 1 st battery string and the 10 th battery string which are positioned at the two ends, only one side of the energy storage battery module is provided with other battery strings, and the other opposite side is not provided with the battery strings, the energy storage battery module can directly radiate heat outwards. Therefore, the battery strings have good heat dissipation effect, and therefore, the two battery strings do not need to be dissipated in advance. And the 2 nd to 9 th battery strings have the heat dissipation effect inferior to the heat dissipation effect of the external environment because the two sides of each battery string are provided with other battery strings, and the temperature of the other battery strings is higher than the ambient temperature with high probability. Therefore, for the length direction flow channel 13 with the root part at the left side in fig. 1, because the length direction flow channel 13 is closer to the inlet 11 of the heat exchange flow channel 10, the heat exchange flow channel 10 with lower temperature and slightly worse heat dissipation environment can be used firstly, thereby more efficiently utilizing the temperature of the heat exchange fluid.

The adjacent length direction channels 13 are arranged in opposite directions, two battery strings can be arranged in the length direction channels 13 with the same arrangement direction, the length direction channels 13 with the same arrangement direction are firstly connected from the inlet 11 of the heat exchange flow channel 10, and fluid can exchange heat with the battery strings on two sides in each length direction channel 13. The length direction flow channel 13 formed by spacing two battery strings at each interval can exchange heat with all the battery strings first, and the fluid with higher temperature is used for heating or the fluid with lower temperature is used for cooling, so that the problem that the battery monomer 20 at the tail end of the heat exchange flow channel 10 cannot exchange heat effectively due to the fact that the heat exchange flow channel 10 is too long when the heat exchange flow channel 10 is arranged on the bottom plate 30 of the energy storage battery module is solved. And the length of the root part on the other side is towards the flow channel 13, so that the heat exchange can be carried out on the opposite surfaces among the rest of battery strings, and the temperature of the energy storage battery module is further stabilized.

As shown in fig. 1-3, the heat exchange channel 10 is preferably formed by a pipe, and the inlet 11 and the outlet 12 of the heat exchange channel 10 are located on the same side of all the battery strings.

Specifically, the tube can be a harmonica tube. And because the energy storage battery module is not the power battery module of electric automobile or hybrid vehicle, so need not to withstand tests such as vibration, puncture, striking like the power battery module that the car used, consequently can select for use aluminium mouth organ pipe can. The harmonica pipe of aluminium system is easily processed and is bent.

The heat exchange flow channel 10 is formed by processing a pipe, no interface exists in the middle, the cooling liquid does not contact the battery monomer 20, the leakage risk does not exist, and the safety and the reliability are obviously improved. In addition, because the heat exchange flow channel 10 is formed by processing a pipe, such a pipe inevitably extends to the outlet 12 from the inlet 11 of the heat exchange flow channel 10 continuously, and can wrap a plurality of side faces of the energy storage battery module, and there is no interval in the horizontal length direction of each side face, so that not only can the heat exchange area be increased, the heat exchange efficiency be improved, but also the structural support and protection of the side faces can be realized.

In addition, the inlet 11 and the outlet 12 of the heat exchange flow channel 10 are arranged on one side, so that the energy storage battery module can be arranged by fully utilizing the existing prefabricated container, the on-site external cooling water pipeline is convenient, the on-site installation construction amount is reduced, and the construction efficiency is improved.

As shown in fig. 1 to 3, it is preferable that the inlet 11 and the outlet 12 of the heat exchange flow channel 10 are adjacently disposed.

The inlet 11 and the outlet 12 of the heat exchange flow channel 10 are adjacently arranged, so that the length from the outer side of the battery string to the length of the flow channel 13 can be increased as much as possible, and the heat exchange effect is improved. Moreover, the pipeline is convenient for operators to connect with the pipeline externally, and the construction efficiency is improved.

Fig. 6 is a three-dimensional exploded view of an energy storage battery module according to an embodiment of the present invention; as shown in fig. 6, preferably, the energy storage battery module further includes a bottom plate 30, and the bottom surface of the heat exchange flow channel 10 is fixedly connected to the bottom plate 30.

Specifically, the height of the harmonica tube is the same as that of the battery monomer 20, the mechanical environment at the energy storage battery module is obviously superior to that of the power battery module, and the harmonica tube can play a role in supporting a structural part.

Through the bottom surface fixed connection with heat transfer runner 10 at bottom plate 30, shift the load of heat transfer runner 10 to on bottom plate 30, can also utilize heat transfer runner 10 to play the support and the guard action of structure, do benefit to and reduce the part quantity that the energy storage battery module used, reduce manufacturing cost.

As shown in fig. 6, preferably, the bottom surface of the heat exchange flow channel 10 is bonded to the bottom plate 30 by an adhesive.

Specifically, the adhesive may be an epoxy resin.

The heat exchange flow channel 10 is connected in a bonding mode through the adhesive, holes do not need to be punched in the heat exchange flow channel 10, and the risk of leakage of the heat exchange flow channel 10 is reduced. But also avoids the thermal stress problem of the welding operation. If the heat exchange flow channel 10 and the bottom plate 30 are made of different materials, the heat exchange flow channel 10 and the bottom plate 30 are also difficult to weld, and are bonded by adopting an adhesive, so that the operation efficiency is high, the influence after processing is small, and the long-term use of the energy storage battery module is facilitated.

The second embodiment:

the second embodiment also provides a battery energy storage module which comprises the energy storage battery module.

The battery energy storage module can comprise an energy storage battery module and also comprise electric elements such as a relay and the like for controlling on-off of charging or discharging.

Through set up above-mentioned energy storage battery module in battery energy storage module, correspondingly, this battery energy storage module has all advantages of above-mentioned energy storage battery module, and the no longer repeated description herein.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

In the above embodiments, the descriptions of the orientations such as "up", "down", etc. are based on the drawings.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.

Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The energy storage battery module is characterized by comprising a heat exchange flow channel (10) and a plurality of battery strings, wherein each battery string comprises at least one battery monomer (20), each heat exchange flow channel (10) comprises a length direction flow channel (13) and a width direction flow channel (14), the length direction flow channels (13) are connected with the width direction flow channels (14), opposite side surfaces of two adjacent battery strings are attached to the length direction flow channels (13), and the surfaces of the same sides of the two adjacent battery strings in the length direction are attached to the width direction flow channels (14).

2. The energy storage battery module as recited in claim 1, wherein the lengthwise flow channel (13) comprises two lengthwise flow channels (15) adjacently disposed side by side, the two lengthwise flow channels (15) form a reverse bevel (16), and the reverse bevel (16) and the widthwise flow channel (14) are respectively located at two ends of the lengthwise flow channel (15).

3. The energy storage battery module as claimed in claim 2, characterized in that the width-wise flow channels (14) on the same side in the length direction of the battery string between the two length-wise flow channels (13) are connected.

4. The energy storage battery module as recited in claim 2, wherein in a plurality of the lengthwise flow channels (13), a part of the reverse bevel (16) is located at one end of the battery string, and a part of the reverse bevel (16) is located at the other end of all the battery strings.

5. The energy storage battery module as recited in claim 4, characterized in that the reverse corners (16) of adjacent lengthwise flow channels (13) are located at both ends of the lengthwise direction of the battery string.

6. The energy storage battery module as claimed in any one of claims 1 to 5, wherein the heat exchange flow channel (10) is formed by machining from a single pipe, and the inlet (11) and the outlet (12) of the heat exchange flow channel (10) are located on the same side of the battery string.

7. The energy storage battery module as recited in claim 6, characterized in that the inlet (11) and the outlet (12) of the heat exchange flow channel (10) are arranged next to each other.

8. The energy storage battery module as recited in any one of claims 1-5, further comprising a bottom plate (30), wherein the bottom surface of the heat exchange flow channel (10) is fixedly connected to the bottom plate (30).

9. The energy storage battery module according to any one of claims 1-5, characterized in that the bottom surface of the heat exchange flow channel (10) is bonded to the bottom plate (30) by an adhesive.

10. A battery energy storage module, characterized in that the battery energy storage module comprises the energy storage battery module of any one of claims 1-9.

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