CN113839402A - Energy storage battery cluster and energy storage system - Google Patents
Energy storage battery cluster and energy storage system Download PDFInfo
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- CN113839402A CN113839402A CN202111123533.5A CN202111123533A CN113839402A CN 113839402 A CN113839402 A CN 113839402A CN 202111123533 A CN202111123533 A CN 202111123533A CN 113839402 A CN113839402 A CN 113839402A
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- Prior art keywords
- circuit protection
- energy storage
- protection device
- series
- battery
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- 238000004146 energy storage Methods 0.000 title claims abstract description 86
- 230000004224 protection Effects 0.000 claims abstract description 134
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 claims description 3
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910001415 sodium ion Inorganic materials 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 11
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The embodiment of the invention discloses an energy storage battery cluster and an energy storage system, wherein the energy storage battery cluster comprises a high-voltage box, a battery pack and a plurality of circuit protection devices; the battery pack comprises a plurality of battery packs, the battery packs are connected in series to form a series branch, two ends of the series branch are respectively connected with positive and negative buses of the high-voltage box, a third circuit protection device is connected in series in the series branch, each battery pack is internally provided with a first circuit protection device connected with the series branch in series, and a second circuit protection device is connected in series on the positive and negative buses of the high-voltage box. The circuit protection device is arranged on each different line, so that the energy storage battery cluster is protected in a grading manner, the safety of the battery cluster can be better guaranteed, the protection cost is reduced, and the fault positioning speed is accelerated.
Description
Technical Field
The invention relates to the field of circuit protection, in particular to an energy storage battery cluster and an energy storage system.
Background
Among the prior art, energy storage battery cluster is the important component part among the energy storage system, but the battery cluster inner structure mixes, along with live time's lapse, insulating ageing takes place easily, short circuit accidents such as abnormal arc discharge, even the explosion takes place, for this reason, though can be at the first time protection battery cluster's of taking place the short circuit safety through setting up insurance measure such as short-circuit protection device, nevertheless often once short circuit back, there are many fuses or circuit breaker open circuit, the protection cost that once short circuit brought is very high, also difficult tracking trouble source simultaneously.
Disclosure of Invention
In view of the above, the present invention provides an energy storage battery cluster, including: the high-voltage box, the battery pack and the circuit protection devices are arranged on the high-voltage box;
the battery pack comprises a plurality of battery packs, the battery packs are connected in series to form a series branch, and two ends of the series branch are respectively connected with a positive bus and a negative bus of the high-voltage box;
a first circuit protection device connected with the series branch in series is arranged in each battery pack;
and the positive and negative buses of the high-voltage box are connected with a second circuit protection device in series.
Furthermore, a plurality of third circuit protection devices are connected in series in the series branch, and the third circuit protection devices are arranged between the battery packs at intervals.
Further, the pre-arc time of the second circuit protection device is less than the pre-arc time of the third circuit protection device, and the pre-arc time of the third circuit protection device is less than the pre-arc time of the first circuit protection device.
Further, the fusing joule integral of the second circuit protection device is smaller than the pre-arc joule integral of the first circuit protection device, and the fusing joule integral of the third circuit protection device is smaller than the pre-arc joule integral of the first circuit protection device.
Further, the working voltage of the second circuit protection device is similar to or equal to the working voltage of a third circuit protection device, and the working voltage of the first circuit protection device is smaller than the working voltage of the third circuit protection device.
Furthermore, the two second circuit protection devices are respectively arranged on the positive bus and the negative bus in the high-voltage box, and can also be connected in series only on the positive bus or only on the negative bus.
Further, the battery pack comprises one of a lithium ion battery pack, a sodium ion battery pack, a lead-acid battery, a lead-carbon battery, a solid-state battery pack and a flow battery pack.
Further, the first circuit protection device, the second circuit protection device and the third circuit protection device at least comprise one of a fuse and a circuit breaker.
Further, the present application also provides an energy storage system, which includes an energy storage converter and a plurality of energy storage battery clusters as described in any of the above embodiments;
the energy storage battery cluster is connected with the energy storage converter, and the energy storage converter is used for being connected with an alternating current power grid.
Furthermore, a fourth circuit protection device is connected in series with a positive and negative bus at one end of the energy storage converter connected with the battery cluster.
Furthermore, a direct current power distribution cabinet is connected between the energy storage battery cluster and the energy storage converter and used for supporting a centralized energy storage structure, and a fourth circuit protection device is connected in series on a positive bus and a negative bus which are connected with a direct current switch in the direct current power distribution cabinet.
The invention provides an energy storage battery cluster and an energy storage system, wherein the energy storage battery cluster comprises a high-voltage box, a battery pack and a plurality of circuit protection devices, each battery pack comprises a plurality of battery packs, the battery packs are connected in series to form a series branch, and two ends of the series branch are respectively connected with positive and negative buses of the high-voltage box; a third circuit protection device is connected in series in the series branch, and a first circuit protection device connected in series with the series branch is arranged in each battery pack; and the positive and negative buses of the high-voltage box are connected with a second circuit protection device in series. According to the battery cluster, the circuit protection devices are arranged in different circuit branches, so that the battery cluster can be protected more specifically, different circuit protection devices are fused differently according to different short-circuit conditions, the loss in one short-circuit fault is reduced, subsequent workers can locate the fault position more easily, and the robustness of an energy storage system using the energy storage battery cluster is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of the present invention. Like components are numbered similarly in the various figures.
Fig. 1A shows a schematic diagram of a circuit structure of an energy storage battery cluster according to the present application;
FIG. 1B is a schematic diagram of another embodiment of an energy storage battery cluster circuit according to the present disclosure;
fig. 2 is a schematic diagram showing the internal structure of the battery pack according to the present application;
FIG. 3A illustrates a schematic diagram of an energy storage system circuit configuration of the present application;
FIG. 3B illustrates a schematic diagram of a circuit configuration of another energy storage system of the present application;
FIG. 4A illustrates a schematic diagram of a circuit portion of an energy storage system according to the present application;
fig. 4B is a schematic diagram illustrating a circuit portion of another energy storage system according to the present application.
Illustration of the drawings:
110-high voltage tank, 120-second circuit protection device, 130-third circuit protection device, 201-first circuit protection device, 202-battery, 400-fourth circuit protection device, 401-energy storage converter circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Hereinafter, the terms "including", "having", and their derivatives, which may be used in various embodiments of the present invention, are only intended to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
Example 1
Referring to fig. 1A, 1B and 2, fig. 1A and 1B are schematic structural diagrams of an energy storage battery cluster provided by the present invention, fig. 2 is an internal structure of a battery pack provided by the present invention, and the battery cluster provided by the present embodiment includes a plurality of battery packs, a high voltage box 110, a first circuit protection device 201 and a second circuit protection device 120.
As shown in fig. 1A, the second circuit protection device 120 is connected in series to positive and negative busbars of the high-voltage box, where two busbars may be connected in series, or may be connected in series only to the positive busbar, or only to the negative busbar, and this application is not limited thereto, where the busbars in the high-voltage box are divided into two ends AB, the end a is used to connect to a series branch of the battery pack, and the end B is used to connect to an external circuit.
As further shown in fig. 1B, the battery packs in the battery cluster may be connected in series with a third circuit protection device 130 to form a series branch, wherein, if there is one third circuit protection device 130, it can be connected in series in the middle of the series branch, if there are more, it is possible to space the battery packs in series in the series branch, and further, assuming that there are 6 battery packs in one battery cluster, the third circuit protection device 130 is connected in series between the third battery pack and the fourth battery pack, and if the number of battery packs is an odd number, such as 5, the third circuit protection device 130 may be connected in series between the second battery pack and the third battery pack, or between the third battery pack and the fourth battery pack, or may be connected in series between the third battery pack and the fourth battery pack of the second battery pack, if there are two third circuit protection devices.
Referring to the schematic internal structure diagram of the battery pack of fig. 2, the battery pack is composed of a plurality of batteries 202, which may be lithium ion batteries, solid state batteries, or flow batteries, to form a corresponding battery pack, wherein the first circuit protection device 201 is connected in series with the batteries inside the battery pack and is disposed inside the battery pack to protect the safety of a single battery pack.
Further, the internal structures of the battery packs are not necessarily all connected in series, and may also be connected in parallel after being connected in series, or connected in series after being connected in parallel, so that regardless of the internal structure of the battery pack, the first circuit protection device 201 and the internal structure of the battery pack are connected in series, thereby protecting the safety of the battery pack, wherein the first circuit protection device may be connected in series at the cathode end or the anode end of the battery pack, which is not limited in this application.
Further, the three circuit protection devices may be fuses or circuit breakers, in this embodiment, fuses are taken as an example, and the three circuit protection devices follow the following relationships to correspond to different operating conditions:
the pre-arc time of the first circuit protection device 201, the second circuit protection device 120 and the third circuit protection device 130 follows the following relational expression, wherein the pre-arc time starts with an abnormal current and reaches the time when the voltage jump at two ends of the fuse is the terminal point, and an arc state point occurs at the time, namely, the melt has already been broken.
T2<K1*T3；
T3<K1*T1。
Where T2 is the pre-arc time of the second circuit protection device 120, T3 is the pre-arc time of the third circuit protection device, and T1 is the pre-arc time of the first circuit protection device. In consideration of the error of the pre-arc time in practical application, the fitting coefficient K1 is set, and K1 generally takes a value of 0.1 to 1, in this embodiment, 0.9.
In this embodiment, when the positive and negative electrodes at the end B of the high voltage box are short-circuited, which is equivalent to the short circuit of the output of the high voltage box, the second circuit protection device 120 is first blown, because 120 is blown, and then the third circuit protection device 130 and the first circuit protection device 201 are not blown for the time, the circuit is broken, and thus the circuit cannot be blown. Similarly, when the a terminal connected to the series branch is short-circuited, which is equivalent to the short-circuit of the series branch of the battery pack, the third circuit protection device 130 will be blown before the first circuit protection device 201, and the first circuit protection device 201 will not be blown.
In addition, the pre-arc joule integral characteristic and the blowing joule integral characteristic of the first circuit protection device 201, the second circuit protection device 120, and the third circuit protection device 130 follow the following relationship, wherein the pre-arc joule integral is smaller than the blowing joule integral for the same circuit protection device.
P2<K1*F3；
P3<K1*F1；
In the equation, P2 is the fusing joule integral of the second circuit protection device 120, F3 is the pre-arc joule integral of the third circuit protection device, P3 is the fusing joule integral of the third circuit protection device, and F1 is the pre-arc joule integral of the first circuit protection device.
In this embodiment, when the positive and negative electrodes at the B end of the high-voltage box are short-circuited, which is equivalent to a short-circuit of the external output of the high-voltage box, according to the relationship between the joule integral characteristic before arc and the joule integral characteristic after fusing, the joule integral before fusing of the second circuit protection device 120 is smaller than the joule integral before arc of the first circuit protection device 201 and the joule integral before arc of the third circuit protection device 130, so that when the second circuit protection device 120 is disconnected, neither the first circuit protection device 201 nor the third circuit protection device 130 is abnormally damaged or degraded in performance, and therefore, both circuit protection devices may not be replaced in the short-circuit, thereby reducing the maintenance cost.
Further, it is also specified that the operating voltage of the third circuit protection device 130 is similar to or equal to the operating voltage of the second circuit protection device 120, and the operating voltage of the first circuit protection device 201 is smaller than the operating voltage of the third circuit protection device 130.
Depending on the actual situation, the operating voltage of the third circuit protection device 130 and the second circuit protection device 120 should be comparable to the voltage of the battery cluster as a whole, and the first circuit protection device 201 is mainly used for protecting the single battery pack, so the operating voltage of the first circuit protection device 201 is equivalent to the voltage of the battery pack, therefore, when the line in the serial branch or the high voltage tank is short-circuited, it can be seen from the relationship between the operating voltage and the pre-arc time that the first circuit protection device 201 is not blown earlier than the third circuit protection device 130 and the second circuit protection device 120, when a short circuit occurs inside a single battery pack, only the first circuit protection device 201 is separately fused, so as to ensure the safety of the battery pack, meanwhile, the circuit protection device arranged in an external circuit cannot be influenced, and the condition that a plurality of circuit protection devices are fused is avoided.
The embodiment of the application provides an energy storage battery cluster, through at the high-pressure tank, establish ties branch road and battery package in the respective time before the arc, joule integral before the arc, three kinds of circuit protection devices of fusing joule integral and operating voltage diverse, with the realization three-level protection to the battery cluster, make when the short circuit takes place in the local circuit of difference, the fuse condition of fusing is all different, protection cost when having reduced the short circuit on the one hand, the troubleshooting scope has also further been reduced simultaneously, make things convenient for the maintainer to overhaul the troubleshooting trouble.
Example 2
Further, an embodiment of the present application further provides an energy storage system, and referring to fig. 3A and fig. 3B, fig. 3A is a schematic structural diagram of an energy storage system provided in an embodiment of the present invention, where the energy storage system includes: energy storage converter and energy storage battery cluster in the above-mentioned embodiment.
The energy storage battery clusters are connected with the energy storage converters, the energy storage converters are used for being connected with a power grid, the number of the energy storage converters can be multiple, and one battery cluster is connected below each energy storage converter to achieve distributed energy storage.
Further, as shown in fig. 3B, a dc power distribution cabinet may be added to the energy storage system in this embodiment, the dc power distribution cabinet is connected to the energy storage converter, and the other end of the dc power distribution cabinet is connected in parallel to the plurality of energy storage battery clusters, so as to realize centralized energy storage.
Further, referring to fig. 4A, fig. 4A is a schematic structural diagram of a connection circuit between an energy storage converter and a power grid in an energy storage system according to an embodiment of the present application.
The end of the energy storage converter circuit 401 connected to the battery cluster or the dc power distribution cabinet is a dc side, a fourth circuit protection device 400 is connected in series to the positive and negative bus bars of the dc side of the energy storage converter circuit 401, the fourth circuit protection device is disposed inside the energy storage converter, and the fourth circuit protection device may be connected in series only to the positive bus bar or the negative bus bar, or connected in series to both the positive and negative bus bars, which is not limited in this application.
As further shown in fig. 4B, when the energy storage system is connected to a dc power distribution cabinet, the fourth circuit protection device is connected in series to the positive and negative busbars connected to the dc switches in the dc power distribution cabinet, and the fourth circuit protection device may be connected in series only to the positive busbar or the negative busbar, or both the positive and negative busbars, which is not limited in this application.
The fourth circuit protection device may be a fuse or a circuit breaker, and this embodiment is not limited herein.
Combine the energy storage system circuit structure that above-mentioned embodiment 1 and this embodiment provided to know, the energy storage system that this application embodiment provided provides 4 grades of protections of constituteing by energy storage converter, high-voltage box, group battery and battery package, can deal with the short circuit condition under the different operating mode, can in time break when the emergence short circuit of assurance and protect the circuit.
The invention provides an energy storage battery cluster and an energy storage system, wherein the energy storage battery cluster comprises a high-voltage box, a battery pack and a plurality of circuit protection devices, each battery pack comprises a plurality of battery packs, the battery packs are connected in series to form a series branch, and two ends of the series branch are respectively connected with positive and negative buses of the high-voltage box 110; a third circuit protection device is connected in series in the series branch, and a first circuit protection device 201 connected in series with the series branch is arranged in each battery pack; and a second circuit protection device 120 is connected in series on the positive and negative bus of the high-voltage box 110. According to the battery cluster, the circuit protection devices are arranged in different circuit branches, so that the battery cluster can be protected more specifically, different circuit protection devices are fused differently according to different short-circuit conditions, the loss in one short-circuit fault is reduced, subsequent workers can locate the fault position more easily, and the robustness of an energy storage system using the energy storage battery cluster is improved.
In addition, each functional module or unit in each embodiment of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (11)
1. An energy storage battery cluster, comprising: the high-voltage box, the battery pack and the circuit protection devices are arranged on the high-voltage box;
the battery pack comprises a plurality of battery packs, the battery packs are connected in series to form a series branch, and two ends of the series branch are respectively connected with a positive bus and a negative bus of the high-voltage box;
a first circuit protection device connected with the series branch in series is arranged in each battery pack;
and the positive and negative buses of the high-voltage box are connected with a second circuit protection device in series.
2. The energy storage battery cluster according to claim 1, wherein a plurality of third circuit protection devices are connected in series in the series branch, and the third circuit protection devices are arranged between the battery packs at intervals.
3. The energy storage battery cluster according to claim 2, wherein the pre-arc time of the second circuit protection device is less than the pre-arc time of the third circuit protection device, which is less than the pre-arc time of the first circuit protection device.
4. The energy storage battery cluster according to claim 2, wherein the second circuit protection device has a fusing joule integral less than the pre-arc joule integral of the first circuit protection device, and the third circuit protection device has a fusing joule integral less than the pre-arc joule integral of the first circuit protection device.
5. The energy storage battery cluster according to claim 2, wherein the operating voltage of the second circuit protection device is similar to or equal to the operating voltage of a third circuit protection device, and the operating voltage of the first circuit protection device is less than the operating voltage of the third circuit protection device.
6. The energy storage battery cluster according to claim 1, wherein the second circuit protection device is connected in series between two bus bars, or connected in series only between the positive bus bar or connected in series only between the negative bus bar, which is not limited in this application.
7. The energy storage battery cluster of claim 1, wherein the battery comprises one of a lithium ion battery pack, a sodium ion battery pack, a lead acid battery, a lead carbon battery, a solid state battery pack, and a flow battery pack.
8. The energy storage battery cluster of claim 2, wherein the first, second, and third circuit protection devices comprise at least one of a fuse and a circuit breaker.
9. An energy storage system, characterized by comprising an energy storage converter and a plurality of energy storage battery clusters according to any one of claims 1 to 8;
the energy storage battery cluster is connected with the energy storage converter, and the energy storage converter is used for being connected with an alternating current power grid.
10. The energy storage system of claim 9, wherein a fourth circuit protection device is connected in series with the positive and negative buses at one end of the energy storage converter connected with the battery cluster.
11. The energy storage system according to claim 9 or 10, wherein a dc power distribution cabinet is further connected between the energy storage battery cluster and the energy storage converter, the dc power distribution cabinet is configured to support a centralized energy storage structure, and a fourth circuit protection device is connected in series to a positive bus and a negative bus connected to a dc switch in the dc power distribution cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111123533.5A CN113839402A (en) | 2021-09-24 | 2021-09-24 | Energy storage battery cluster and energy storage system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111123533.5A CN113839402A (en) | 2021-09-24 | 2021-09-24 | Energy storage battery cluster and energy storage system |
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| CN202111123533.5A Pending CN113839402A (en) | 2021-09-24 | 2021-09-24 | Energy storage battery cluster and energy storage system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116581712A (en) * | 2023-07-07 | 2023-08-11 | 深圳市首航新能源股份有限公司 | Battery cluster and energy storage system thereof |
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| WO2017148123A1 (en) * | 2016-02-29 | 2017-09-08 | 比亚迪股份有限公司 | Battery protecting device and power assembly |
| CN110299744A (en) * | 2019-07-08 | 2019-10-01 | 阳光电源股份有限公司 | A kind of high-tension battery cluster and its current foldback circuit and switch enclosure |
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Application publication date: 20211224 |
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| RJ01 | Rejection of invention patent application after publication |