阅读说明：本技术 圆柱锂电池制作的集装箱储能电站 (Container energy storage power station of cylinder lithium cell preparation ) 是由 杨贝 王勇 任士界 孙浩 于 2021-08-13 设计创作，主要内容包括：本发明涉及一种圆柱锂电池制作的集装箱储能电站,属于锂电池储能电站领域。本发明采用的技术方案是：圆柱锂电池制作的集装箱储能电站,包括集装箱箱体和圆柱电池单元,所述集装箱箱体在内部分为处于两侧的电池仓和中间的控制仓,所述控制仓内设有电池管理系统BMS、能量管理系统EMS、消防系统、储能交流器PCS,所述多个圆柱电池单元以分为两排,两排圆柱电池单元之间留有箱内走廊风道；所述圆柱电池单元为抽屉式框架,抽屉式框架前侧内部为层叠布置的圆柱电池模组,抽屉式框架后侧为主散热风道。本发明采用圆柱锂电池制作集装箱储能电池,多簇组合解决圆柱电芯单体数量多配组难问题；电芯支架组装,一字排列,推拉式安装,方便串联操作及维护；独立风道配合单体支架组装有效增加散热空间；串与串之间气凝胶隔热,防止相邻单元热量影响。(The invention relates to a container energy storage power station manufactured by cylindrical lithium batteries, and belongs to the field of lithium battery energy storage power stations. The technical scheme adopted by the invention is as follows: the container energy storage power station manufactured by the cylindrical lithium battery comprises a container body and cylindrical battery units, wherein the container body is internally divided into battery bins on two sides and a control bin in the middle, a battery management system BMS, an energy management system EMS, a fire fighting system and an energy storage converter PCS are arranged in the control bin, the cylindrical battery units are divided into two rows, and an in-box corridor air duct is reserved between the two rows of cylindrical battery units; the cylindrical battery unit is a drawer type frame, the cylindrical battery modules are arranged in a stacked mode inside the front side of the drawer type frame, and the rear side of the drawer type frame is a main heat dissipation air duct. According to the invention, the container energy storage battery is manufactured by adopting the cylindrical lithium battery, and the problem of difficulty in matching and assembling the cylindrical battery cell monomers in large quantity is solved by combining multiple clusters; the battery cell supports are assembled, arranged in a straight line and installed in a push-pull mode, so that series connection operation and maintenance are facilitated; the independent air duct is assembled by matching with the single bracket, so that the heat dissipation space is effectively increased; the aerogel is thermal-insulated from cluster to cluster, prevents adjacent unit heat influence.)

1. The container energy storage power station is characterized by comprising a container body (1) and cylindrical battery units (2), wherein the container body (1) is internally divided into battery bins (3) on two sides and a control bin (4) in the middle, a battery management system (5) BMS, an energy management system (6) EMS, a fire fighting system and an energy storage converter PCS are arranged in the control bin (4), the cylindrical battery units (2) are divided into two rows, and an in-box corridor air duct is reserved between the two rows of cylindrical battery units (2);

the cylindrical battery unit (2) is a drawer type frame (9), the interior of the front side of the drawer type frame (9) is a cylindrical battery module (10) which is arranged in a stacked mode, and the rear side of the drawer type frame (9) is a main heat dissipation air duct (11).

2. The container energy storage power station made of cylindrical lithium batteries of claim 1, characterized in that the cylindrical battery modules (10) are connected in series and then connected to a high-voltage load output box, the positive electrode and the negative electrode of each cylindrical lithium battery in the cylindrical battery modules (10) are respectively connected to a battery management unit (13), a temperature sensor is arranged in each cylindrical battery module (10), the temperature sensor is connected to the battery management unit (13), the battery management unit (13) collects the voltage, internal resistance and temperature data of the cylindrical lithium batteries, and the battery management units (13) of all cylindrical battery modules (10) in the same cylindrical battery unit (2) are connected to a battery management system (5).

3. Container energy storage power station made of cylindrical lithium batteries according to claim 2, characterized in that the battery management systems (5) of all cylindrical battery cells (2) are connected to the energy management system (6).

4. The container energy storage power station made of cylindrical lithium batteries according to claim 2, characterized in that the cylindrical battery module (10) is a module assembled by a plurality of cylindrical single battery cells (14) by using supports, all the cylindrical single battery cells (14) of one module are connected in parallel, a gap is left between the cylindrical single battery cells (14) to serve as an internal air duct of the module, and the internal air duct of the module is communicated with the main heat dissipation air duct (11) at the rear part of the cylindrical battery unit (2).

5. The container energy storage power station made of cylindrical lithium batteries according to claim 4, characterized in that a vertical main heat dissipation air duct (11) is arranged at the rear part of the drawer-type frame (9) of the cylindrical battery unit (2) and external cold air is introduced into the upper part of the drawer-type frame, a module air duct (17) is arranged between the main heat dissipation air duct (11) and each layer of cylindrical battery module (10), the module air duct (17) is communicated with the gap between the cylindrical single battery cells (14) in the cylindrical battery module (10) and the main heat dissipation air duct (11), and the cylindrical battery module (10) of the cylindrical battery unit (2) is of an open structure at the front side surface of the drawer-type frame (9).

6. The container energy storage power station made of cylindrical lithium batteries according to claim 4, characterized in that aerogel (18) is arranged between the upper and lower adjacent cylindrical battery modules (10) of the cylindrical battery cells (2), and the aerogel (18) isolates heat between the adjacent cylindrical battery modules (10).

7. The container energy storage power station made of cylindrical lithium batteries according to claim 1, characterized in that a series port is arranged at the front side of the cylindrical battery module (10), the positive and negative poles of the cylindrical single battery cell (14) in the cylindrical battery module (10) are connected in parallel and then connected to the series port, the positive series port of the cylindrical battery module (10) of the cylindrical battery unit (2) is connected to the negative series port of the adjacent cylindrical battery module (10) through a breaker, and the breaker is disconnected when abnormal current flows.

8. The container energy storage power station made of cylindrical lithium batteries according to claim 5, characterized in that a solenoid valve is arranged between the module air duct (17) and the module internal air duct of the cylindrical battery module (10), the solenoid valve controls the on/off of the module air duct (17), the battery management unit (13) detects the temperature of the cylindrical battery module (10) and feeds the temperature back to the battery management system (5), and the battery management system (5) controls the on/off of the solenoid valve, so that the cylindrical battery module (10) is temperature-regulated by the on/off of the control module air duct (17).

9. The container energy storage power station made of cylindrical lithium batteries according to claim 1, characterized in that the cylindrical battery units (2) of the multi-layer drawer-type frame (9) are arranged in the container from left to right, an in-container corridor air duct is arranged between two rows of cylindrical battery units (2) and serves as a maintenance and installation channel, a separation wall is arranged between the control bin (4) and the battery bin (3), the container body (1) is provided with a fire door, and the battery bins (3) are symmetrically arranged relative to the control bin (4) in the middle of the container body (1).

Technical Field

The invention relates to a container energy storage power station manufactured by cylindrical lithium batteries, and belongs to the field of lithium battery energy storage power stations.

Background

Energy storage is a key supporting technology for energy structure adjustment and power system transformation under new energy waves. The lithium battery container energy storage solution is widely applied to new energy power generation access and consumption, distributed power generation and micro-grid energy storage are achieved, and reliable power supply and electric energy quality are provided for frequency modulation and voltage regulation of a power system and upgrading and transformation of a power distribution system.

The lithium battery container energy storage system is significant in the market layout of the energy storage power station. At present, container energy storage system adopts square lithium cell preparation more in the market, and the cylinder lithium cell has module specification adjustment convenience than square battery, good heat dissipation, and cyclic life advantage such as longer, therefore cylinder lithium cell preparation container energy storage battery system has unique advantage.

The container energy storage power station of present cylinder lithium cell preparation does not have the standardization product yet, and this product has great market potential of promoting.

Disclosure of Invention

The invention provides a container energy storage power station manufactured by cylindrical lithium batteries, which solves the problem that when cylindrical battery modules are combined in a plurality of clusters, the number of cylindrical single battery cores is large and the assembly is difficult.

In order to achieve the purpose, the invention adopts the technical scheme that:

the container energy storage power station manufactured by the cylindrical lithium battery comprises a container body and cylindrical battery units, wherein the container body is internally divided into battery bins on two sides and a control bin in the middle, a battery management system BMS, an energy management system EMS, a fire fighting system and an energy storage converter PCS are arranged in the control bin, the cylindrical battery units are divided into two rows, and an in-box corridor air duct is reserved between the two rows of cylindrical battery units;

the cylindrical battery unit is a drawer type frame, the cylindrical battery modules are arranged in a stacked mode inside the front side of the drawer type frame, and the rear side of the drawer type frame is a main heat dissipation air duct.

Preferably, the cylindrical battery modules are connected in series and then connected into the high-voltage load output box, the positive electrode and the negative electrode of each cylindrical lithium battery in each cylindrical battery module are respectively connected into the battery management unit, the cylindrical battery modules are internally provided with temperature sensors, the temperature sensors are connected into the battery management unit, the battery management unit collects voltage, internal resistance and temperature data of the cylindrical lithium batteries, and the battery management units of all the cylindrical battery modules in the same cylindrical battery unit are connected into the battery management system.

Preferably, the battery management systems of all the cylindrical battery units are connected into the energy management system.

As preferred, the cylinder battery module uses the support to assemble into a module for a large amount of cylinder monomer electricity core, and the cylinder monomer electricity core of a module is whole to be parallelly connected, leaves the clearance between the cylinder monomer electricity core as the inside wind channel of module, and the inside wind channel of module and the main heat dissipation wind channel looks UNICOM at cylinder battery unit rear portion.

Preferably, a vertical main cooling air duct is arranged at the rear part of the drawer-type frame of the cylindrical battery unit, external cooling air is introduced into the upper part of the drawer-type frame, a module air duct is arranged between the main cooling air duct and each layer of cylindrical battery module, the module air duct is communicated with a gap between cylindrical single battery cells in the cylindrical battery module and the main cooling air duct, and the cylindrical battery module of the cylindrical battery unit is of an open structure at the front side surface of the drawer-type frame.

As the preferred, be equipped with the aerogel between the adjacent cylinder battery module about the cylinder battery cell, the heat between the isolated adjacent cylinder battery module of aerogel.

Preferably, the front side of the cylindrical battery module is provided with a series port, the positive and negative electrodes of the cylindrical single battery core in the cylindrical battery module are connected in parallel and then connected with the series port, the positive series port of the cylindrical battery module of the cylindrical battery unit is connected with the negative series port of the adjacent cylindrical battery module through a breaker, and the breaker is disconnected when encountering abnormal current.

As preferred, be equipped with the solenoid valve between the inside wind channel of module in module wind channel and the cylinder battery module, solenoid valve control module wind channel break-make, battery management unit detects cylinder battery module temperature to feed back the battery management system with the temperature, battery management system control solenoid valve switch, thereby the break-make in control module wind channel carries out temperature regulation to cylinder battery module.

Preferably, the cylindrical battery units of the multilayer drawer type frame are arranged in the container in a left-right mode, an in-box corridor air channel is arranged between two rows of cylindrical battery units and serves as a maintenance and installation channel, a separation wall is arranged between the control cabin and the battery cabin, a fire door is arranged on the separation wall, and the battery cabin is symmetrically arranged relative to the control cabin in the middle of the container body.

According to the invention, the container energy storage battery is manufactured by adopting the cylindrical lithium battery, and the problem of difficulty in matching and assembling the cylindrical battery cell monomers in large quantity is solved by combining multiple clusters; the battery cell supports are assembled, arranged in a straight line and installed in a push-pull mode, so that series connection operation and maintenance are facilitated; the independent air duct is assembled by matching with the single bracket, so that the heat dissipation space is effectively increased; the aerogel is thermal-insulated from cluster to cluster, prevents adjacent unit heat influence.

Drawings

Figure 1 is a perspective view of a container energy storage power station made of cylindrical lithium batteries with a top cover removed,

figure 2 is a top view of the interior of a container energy storage power station made of cylindrical lithium batteries according to the invention,

figure 3 is a front side cutaway view of a container energy storage power station made of cylindrical lithium batteries of the present invention,

figure 4 is a perspective view of a cylindrical battery cell in a container energy storage power station made of cylindrical lithium batteries of the present invention,

figure 5 is a side cutaway view of a cylindrical battery cell in a container energy storage power station made of cylindrical lithium batteries of the present invention,

fig 6 is a plan view of a cylindrical battery module in a cylindrical battery cell according to the present invention,

fig 7 is a front side view of a cylindrical battery module in a cylindrical battery cell according to the present invention,

fig 8 is a left side view of a cylindrical battery module in a cylindrical battery cell according to the present invention,

fig. 9 is a circuit connection diagram of the cylindrical battery module in the cylindrical battery unit according to the present invention.

Reference numerals:

1. container box, 2, cylinder battery unit, 3, the battery compartment, 4, the control cabin, 5, battery management system, 6, energy management system, 7, fire extinguishing system, 8, the energy storage ac ware, 9, drawer type frame, 10, cylinder battery module, 11, main radiating air duct, 12, high-pressure load output box, 13, battery management unit, 14 cylinder monomer electricity core, 15, the support, 16, the clearance, 17, the module wind channel, 18, the aerogel, 19, the series connection port, 20, the circuit breaker, 21, prevent fire door, 22, the partition wall, 23 incasement corridor wind channel.

Detailed Description

The following further describes the specific contents of the present invention:

the container energy storage power station made of the cylindrical lithium battery is used for storing electric energy so as to provide the electric energy in power failure or power consumption peak.

The structure of the invention is shown in figures 1-3 and comprises a container body 1 and a cylindrical battery unit 2. The container body 1 is a metal body structure.

The container body 1 of the present invention is internally divided into a battery compartment 3 at both sides and a control compartment 4 in the middle. Specifically, a battery management system BMS, an energy management system EMS, a fire fighting system and an energy storage converter PCS are arranged in the control cabin 4. The battery management system BMS, the energy management system EMS, the fire fighting system and the energy storage converter PCS are arranged in the control cabin in two rows. A separation wall is arranged between the control bin 4 and the battery bin 3, the control bin of the container body 1 is communicated with the outside and is provided with a fire door, and the battery bin 3 is symmetrically arranged relative to the control bin 4 in the middle of the container body 1.

As shown in fig. 1-3, a plurality of cylindrical battery units 2 are arranged in a battery compartment 3 of a container body 1, the cylindrical battery units 2 are divided into two rows, and an air duct in the container is reserved between the two rows of cylindrical battery units 2. The cylindrical battery units 2 are arranged left and right in the inner battery compartment 3 of the container, and the air duct in the inner container corridor between the two rows of cylindrical battery units 2 is also used as a maintenance and installation channel. The maintenance and installation channel can also be used for controlling and installing an alternating current output system, and wiring is convenient.

The structure of the cylindrical battery cell 2 will be described with reference to the structural diagrams of the cylindrical battery cell in fig. 4, 5 and 6. The cylindrical battery units 2 are drawer type frames 9, the cylindrical battery modules 10 are arranged in the drawer type frames 9 in a stacked mode inside the front sides of the drawer type frames, the battery modules are arranged in the drawer type frames from top to bottom, the weight of the modules is effectively reduced due to the fact that one module is formed in a series mode, and the battery units are convenient to operate in a push-pull mode. Compared with a multi-string structure module of a square battery, the multi-string structure module has the advantages of light weight and convenience in installation and maintenance.

The rear portion of the drawer type frame 9 of the cylindrical battery unit 2 is provided with a vertical main heat dissipation air duct 11, external cold air is introduced into the upper portion of the main heat dissipation air duct 11, a module air duct 17 is arranged between the main heat dissipation air duct 11 and each layer of cylindrical battery module 10, the module air duct 17 is communicated with a gap between cylindrical single battery cells 14 in the cylindrical battery module 10 and the main heat dissipation air duct 11, and the front side face of the cylindrical battery module 10 of the cylindrical battery unit 2 in the drawer type frame 9 is of an open structure.

Be equipped with aerogel 18 between the adjacent cylinder battery module 10 about cylinder battery unit 2, aerogel 18 parcel lives cylinder battery module 10, and aerogel 18 completely cuts off the heat transfer between the adjacent cylinder battery module 10, reaches effective thermal-insulated purpose. 18 reservation air flues of aerogel guarantee that the temperature of battery module is only relevant with the operating condition of self, do not receive the influence of peripheral battery module, aerogel parcel also can effectively prevent battery module thermal runaway and then influence peripheral battery module in addition, and the aerogel also can play the effect of putting out a fire simultaneously.

Be equipped with the solenoid valve between the inside wind channel of module wind channel 17 and cylinder battery module 10's the module, solenoid valve control module wind channel 17 break-make, battery management unit 13 detects cylinder battery module 10 temperature, and feed back the temperature to battery management system 5, battery management system 5 control solenoid valve switch, thereby control module wind channel 17's break-make carries out temperature regulation to cylinder battery module 10.

The connection relationship of the cylindrical battery modules inside the cylindrical battery unit 2 will be described, and fig. 9 is a circuit connection relationship diagram of the cylindrical battery modules in the cylindrical battery unit.

The high-voltage load output box is connected to the cylindrical battery modules 10 in series, the positive electrode and the negative electrode of each cylindrical lithium battery in the cylindrical battery modules 10 are respectively connected to the battery management unit 13, the temperature sensor is arranged in each cylindrical battery module 10 and connected to the battery management unit 13, the battery management unit 13 collects voltage, internal resistance and temperature data of the cylindrical lithium batteries, and the battery management units 13 of all the cylindrical battery modules 10 in the same cylindrical battery unit 2 are connected to the battery management system 5. The battery management unit 13 monitors the temperature of each cylindrical battery module, and the consistency of the battery module in a proper working temperature range and the temperature of the whole system is ensured to the maximum extent.

The battery management system 5 of the cylindrical battery unit 2 is connected to the energy management system 6. The battery management system 5 adopts a bidirectional active equalization mode, and the overall consistency of the battery modules can be improved.

Such as the cylindrical battery module structural view of fig. 6, 7 and 8.

The cylindrical battery module 10 is a module assembled by a plurality of cylindrical single battery cells 14 by using a bracket, and all the cylindrical single battery cells 14 of the module are connected in parallel, so that potential safety hazards do not exist in the light-body combination of the battery cells. A gap is reserved between the cylindrical single battery cells 14 to serve as an internal air duct of the module, and the heat dissipation area of the battery cells can be increased. The air duct inside the module is communicated with the main heat dissipation air duct 11 at the rear part of the cylindrical battery unit 2, so that the overall heat dissipation effect of the module is greatly improved.

The front side of cylinder battery module 10 sets up the series connection port, the interior cylinder monomer electric core 14 positive negative pole of cylinder battery module 10 connect in after parallelly connected in the series connection port, the anodal series connection port of cylinder battery module 10 of cylinder battery unit 2 and the negative pole series connection port of adjacent cylinder battery module 10 pass through the circuit breaker and link to each other, and the circuit breaker meets abnormal current and can break off. After the abnormity is eliminated, the connection can be manually recovered, so that the battery system can be prevented from being damaged due to abnormal current, and the convenience of local maintenance is improved. The serial ports are leaked and arranged in a straight line, and the wiring is very convenient.

According to the invention, the container energy storage battery is manufactured by adopting the cylindrical lithium battery, and the problem of difficulty in matching and assembling the cylindrical battery cell monomers in large quantity is solved by combining multiple clusters; the battery cell supports are assembled, arranged in a straight line and installed in a push-pull mode, so that series connection operation and maintenance are facilitated; the independent air duct is assembled by matching with the single bracket, so that the heat dissipation space is effectively increased; the aerogel is thermal-insulated from cluster to cluster, prevents adjacent unit heat influence.