阅读说明：本技术 一种储能电池 (Energy storage battery ) 是由 刘军红 王兴兴 李艳红 叶骏 李俊飞 贾天翼 于 2021-07-22 设计创作，主要内容包括：本发明提供了一种储能电池,包括电池柜,电池柜的顶部设有第一总汇流排,底部设有第二总汇流排,在电池柜的顶部和底部之间设有至少两层布置空间,每个布置空间的顶部均设有第一分区汇流排,底部均设有第二分区汇流排,在第一分区汇流排和第二分区汇流排之间设有并联的n个电池模组；最顶层的布置空间的第一分区汇流排与第一总汇流排连接,最底层的布置空间的第二分区汇流排与第二总汇流排连接；对于相邻的两个布置空间,上面一个布置空间的第二分区汇流排与下面一个布置空间的第一分区汇流排连接。由此,单组电池模组一旦出现故障,仅需解除和更换该组故障模组,不需要整簇进行替换。(The invention provides an energy storage battery, which comprises a battery cabinet, wherein the top of the battery cabinet is provided with a first main bus bar, the bottom of the battery cabinet is provided with a second main bus bar, at least two layers of arrangement spaces are arranged between the top and the bottom of the battery cabinet, the top of each arrangement space is provided with a first partition bus bar, the bottom of each arrangement space is provided with a second partition bus bar, and n battery modules which are connected in parallel are arranged between the first partition bus bar and the second partition bus bar; the first subarea bus bar of the arrangement space at the topmost layer is connected with the first total bus bar, and the second subarea bus bar of the arrangement space at the bottommost layer is connected with the second total bus bar; for two adjacent arrangement spaces, the second sectional busbar of the upper arrangement space is connected to the first sectional busbar of the lower arrangement space. Therefore, once a single group of battery modules fails, only the group of failed modules needs to be removed and replaced, and the whole group of failed modules does not need to be replaced.)

1. An energy storage battery, comprising: the battery cabinet is characterized in that a first total bus bar (1) is arranged at the top of the battery cabinet, a second total bus bar (2) is arranged at the bottom of the battery cabinet, at least two layers of arrangement spaces are arranged between the top and the bottom of the battery cabinet, a first partition bus bar (3) is arranged at the top of each arrangement space, a second partition bus bar (4) is arranged at the bottom of each arrangement space, and n battery modules (5) connected in parallel are arranged between the first partition bus bar (3) and the second partition bus bar (4); wherein, the first section busbar (3) of the arrangement space at the topmost layer is connected with the first total busbar (1), and the second section busbar (4) of the arrangement space at the bottommost layer is connected with the second total busbar (2); for two adjacent arrangement spaces, the second sectional busbar (4) of the upper arrangement space is connected to the first sectional busbar (3) of the lower arrangement space.

2. Energy storage cell according to claim 1, characterized in that the first total busbar (1) is a positive total busbar, the second total busbar (2) is a negative total busbar, the first partition busbar (3) is a positive partition busbar and the second partition busbar (4) is a negative partition busbar.

3. Energy storage cell according to claim 1, characterized in that the first total busbar (1) is a negative total busbar, the second total busbar (2) is a positive total busbar, the first partition busbar (3) is a negative partition busbar and the second partition busbar (4) is a positive partition busbar.

4. Energy storage cell according to claim 1, characterized in that for two adjacent arrangement spaces, the second sectional busbar (4) of the upper arrangement space is connected to the first sectional busbar (3) of the lower arrangement space by a connecting tab (6) adapted to the busbar.

5. Energy storage cell according to claim 1, characterized in that the first sectional busbar (3) of the topmost arrangement space is connected to the first main busbar (1) by a connecting tab (6) matching the busbar; and the second partition busbar (4) of the arrangement space of the bottommost layer is connected with the second main busbar (2) through a connecting sheet (6) matched with the busbar.

6. The energy storage battery according to claim 1, characterized in that the battery module (5) is formed by connecting cells in series.

7. The energy storage battery according to claim 6, characterized in that redundant cells are provided in the battery module (5).

8. The energy storage battery of claim 7, wherein the number of redundant cells is one.

9. The energy storage battery of claim 1, wherein the battery cabinet is open.

Technical Field

The invention relates to the technical field of batteries, in particular to an energy storage battery.

Background

With the development of energy storage technology, the continuous implementation and application of megawatt large-scale energy storage projects promote the continuous improvement of the technical performance of lithium iron phosphate batteries, and the application is gradually increased. However, with the rapid development of the energy storage industry, some problems are gradually revealed.

Conventional battery all adopts electric core series connection to become the battery module, and the battery module is established ties into the battery cluster earlier, carries out parallelly connected rethread collection flow cabinet between the battery cluster and inserts the energy storage converter. Due to the wiring mode, when one group of battery modules breaks down, the whole battery cluster needs to be replaced, and great waste is caused.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that when a group of battery modules fails, the entire battery cluster needs to be replaced, thereby providing an energy storage battery.

According to a first aspect, an embodiment of the present invention provides an energy storage battery, including: the battery cabinet is characterized in that a first total busbar is arranged at the top of the battery cabinet, a second total busbar is arranged at the bottom of the battery cabinet, at least two layers of arrangement spaces are arranged between the top and the bottom of the battery cabinet, a first partition busbar is arranged at the top of each arrangement space, a second partition busbar is arranged at the bottom of each arrangement space, and n battery modules which are connected in parallel are arranged between the first partition busbar and the second partition busbar; the first partition busbar of the arrangement space at the topmost layer is connected with the first total busbar, and the second partition busbar of the arrangement space at the bottommost layer is connected with the second total busbar; for two adjacent arrangement spaces, the second sectional busbar of the upper arrangement space is connected to the first sectional busbar of the lower arrangement space.

According to a first aspect, in a first embodiment of the first aspect, the first total busbar is a positive total busbar, the second total busbar is a negative total busbar, the first partition busbar is a positive partition busbar, and the second partition busbar is a negative partition busbar.

According to a first aspect, in a second embodiment of the first aspect, the first total busbar is a negative total busbar, the second total busbar is a positive total busbar, the first partition busbar is a negative partition busbar, and the second partition busbar is a positive partition busbar.

According to the first aspect, in the third embodiment of the first aspect, for two adjacent arrangement spaces, the second section bus bar of the upper arrangement space and the first section bus bar of the lower arrangement space are connected by a connecting piece matched with the busbar.

According to the first aspect, in a fourth embodiment of the first aspect, the battery module is formed by serially connecting battery cells.

According to a fourth embodiment of the first aspect, in the fifth embodiment of the first aspect, redundant battery cells are provided in the battery module.

According to a fifth embodiment of the first aspect, in the sixth embodiment of the first aspect, the number of the redundant battery cells is one.

According to a seventh embodiment of the first aspect, the battery cabinet is open.

According to the first aspect, in an eighth embodiment of the first aspect, the first section busbar and the first main busbar of the topmost arrangement space are connected through a connecting sheet matched with a busbar; and the second partition busbar of the arrangement space at the bottommost layer is connected with the second main busbar through a connecting sheet matched with the busbar.

1. The energy storage battery provided by the embodiment of the invention comprises a battery cabinet, wherein a first main bus bar is arranged at the top of the battery cabinet, a second main bus bar is arranged at the bottom of the battery cabinet, at least two layers of arrangement spaces are arranged between the top and the bottom of the battery cabinet, a first partition bus bar is arranged at the top of each arrangement space, a second partition bus bar is arranged at the bottom of each arrangement space, and n battery modules connected in parallel are arranged between the first partition bus bar and the second partition bus bar; the first partition busbar of the arrangement space at the topmost layer is connected with the first total busbar, and the second partition busbar of the arrangement space at the bottommost layer is connected with the second total busbar; for two adjacent arrangement spaces, the second sectional busbar of the upper arrangement space is connected to the first sectional busbar of the lower arrangement space. That is to say, adopt n battery module to adopt the mode of connecting in parallel to connect in the space of arranging of every layer of battery cabinet, in case single battery module breaks down like this, only need remove and change this group trouble module, need not whole cluster and replace, promoted battery system overall utilization.

2. According to the energy storage battery provided by the embodiment of the invention, the battery module is formed by serially connecting the battery cells, and the redundant battery cells are arranged in the battery module, so that when the battery module breaks down, the broken-down battery cells can be replaced by the redundant battery cells, the operation of the whole system is not influenced when the single-group battery module breaks down, and the whole safety of the system is improved.

3. According to the energy storage battery provided by the embodiment of the invention, for two adjacent arrangement spaces, the second partition busbar of the upper arrangement space is connected with the first partition busbar of the lower arrangement space through the connecting sheet matched with the busbar; the first partition bus bar of the topmost arrangement space is connected with the first main bus bar through a connecting sheet matched with the bus bar; and the second partition busbar of the arrangement space at the bottommost layer is connected with the second main busbar through a connecting sheet matched with the busbar. That is to say, all connect through special connection piece between the busbar, compare the cable junction mode commonly used at present, the security is high, the circuit loss is little, the fault rate is low. And the workload of increasing and decreasing the capacity of the battery at the later stage is small, the operation is simple and easy, and the method is more suitable for large-scale energy storage engineering project application.

Drawings

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

Fig. 1 is a schematic structural diagram of an energy storage battery;

FIG. 2 is a diagram of a battery cluster system;

wherein:

1. a first bus bar; 2. a second bus bar; 3. a first partition bus; 4. a second partition bus; 5. a battery module; 6. and (7) connecting the sheets.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The energy storage battery shown in fig. 1 comprises a battery cabinet, wherein a first total busbar 1 is arranged at the top of the battery cabinet, a second total busbar 2 is arranged at the bottom of the battery cabinet, at least two layers of arrangement spaces are arranged between the top and the bottom of the battery cabinet, a first partition busbar 3 is arranged at the top of each arrangement space, a second partition busbar 4 is arranged at the bottom of each arrangement space, and n battery modules 5 connected in parallel are arranged between the first partition busbar 3 and the second partition busbar 4; wherein, the first section busbar 3 of the arrangement space at the topmost layer is connected with the first total busbar 1, and the second section busbar 4 of the arrangement space at the bottommost layer is connected with the second total busbar 2; for two adjacent arrangement spaces, the second sectional busbar 4 of the upper arrangement space is connected to the first sectional busbar 3 of the lower arrangement space. That is to say, adopt n battery module 5 to adopt the mode of connecting in parallel to connect in the space of arranging of every layer of battery cabinet, in case single battery module 5 breaks down like this, only need remove and change this group trouble module, need not whole cluster and replace, promoted battery system overall utilization.

In a specific embodiment, the first total bus bar 1 is a positive total bus bar, the second total bus bar 2 is a negative total bus bar, the first partition bus bar 3 is a positive partition bus bar, and the second partition bus bar 4 is a negative partition bus bar, that is, the energy storage battery shown in fig. 1.

In a specific embodiment, the first total bus bar 1 is a negative total bus bar, the second total bus bar 2 is a positive total bus bar, the first partition bus bar 3 is a negative partition bus bar, and the second partition bus bar 4 is a positive partition bus bar.

In a specific embodiment, for two adjacent arrangement spaces, the second sectional busbar 4 of the upper arrangement space is connected with the first sectional busbar 3 of the lower arrangement space by a connecting piece 6 matched with the busbar. The first subarea bus bar 3 of the topmost arrangement space is connected with the first main bus bar 1 through a connecting sheet 6 matched with the bus bar; and the second partition busbar 4 of the arrangement space at the bottommost layer is connected with the second main busbar 2 through a connecting sheet 6 matched with the busbar. That is to say, all connect through special connection piece 6 between the busbar, compare the cable junction mode commonly used at present, the security is high, the line loss is little, the fault rate is low. And the workload of increasing and decreasing the capacity of the battery at the later stage is small, the operation is simple and easy, and the method is more suitable for large-scale energy storage engineering project application.

As a specific implementation manner, the battery module 5 is formed by serially connecting battery cells, and a redundant battery cell is arranged in the battery module 5. For example, the number of the redundant battery cells is one. Therefore, when the battery module 5 breaks down, the redundant battery core is used for replacing the broken battery core, so that the operation of the whole system is not influenced when the single-group battery module 5 breaks down, and the whole safety of the system is improved.

As a specific embodiment, the battery cabinet is open. Therefore, when the arrangement space is insufficient, a new arrangement space can be flexibly added.

In summary, the energy storage battery provided in embodiment 1 of the present invention has n-1 redundant units for each group of battery modules 5, so that on one hand, when a single group of battery modules 5 fails, the operation of the overall system is not affected, and the overall safety of the system is improved; on one hand, once a single group of battery modules 5 fails, only the group of failed modules needs to be replaced, and the whole group of failed modules does not need to be replaced, so that the overall utilization rate of a battery system is improved. All connect through special connection piece 6 between the busbar, compare the cable junction mode commonly used at present, the security is high, and the fault rate is low. And the workload of increasing and decreasing the capacity of the battery at the later stage is small, the operation is simple and easy, and the method is more suitable for engineering project application.

As shown in fig. 2, 3 energy storage cells are electrically connected to form a battery cluster.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.