Modular high-capacity battery cell energy storage module

Abstract

The utility model belongs to the technical field of energy storage equipment, especially, relate to a modularization big capacity electric core energy storage module, including energy storage module body, energy storage module body includes electric core, end plate, heat insulation pad, CCS assembly, output block, steel band and plastic bandage, a plurality of electric core is equidistant array formula arrangement, the top between two two electric cores realizes electricity connection through CCS assembly, the side of adjacent two electric cores is connected using heat insulation pad, the top side of end plate is provided with the positioning structure convenient for output block and installs, the outside of end plate is provided with the lifting hole convenient for energy storage module body and hoists, the both side corner of end plate is provided with the clamping groove. The utility model discloses reasonable in design, simple structure, convenient processing and modularization set up, and improve the use capacity of device equipment, increase the income significantly to a certain extent, reduce the cost, ensure the heat dissipation performance of equipment, satisfy the use demand effectively.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage equipment technology, and in particular relates to a modular large-capacity battery cell energy storage module. Background Technology

[0002] Currently, carbon neutrality is rapidly advancing globally, and the energy storage industry plays a crucial role in the energy transition, occupying an important position in the global energy system.

[0003] China's energy storage industry faces severe challenges such as "overcapacity" and "price involution" amid a complex market environment and fierce global competition. Both the prices of energy storage cells and systems are continuously declining, the pace of technological iteration is accelerating, and the installed capacity of energy storage is growing rapidly. Under pressure to reduce costs and increase efficiency, and to differentiate itself from competitors, energy storage cells, as core components, are rapidly iterating from 280Ah and 314Ah to larger capacities (500+Ah, 600+Ah), and these large-capacity cells are reshaping the energy landscape.

[0004] The "Document No. 136" was implemented in February this year, marking the end of the "mandatory energy storage allocation" era and bringing the energy storage industry to the forefront of market challenges. Shifting from policy-driven to market-driven, energy storage projects must pursue low costs while ensuring high quality; therefore, the energy storage value chain will be completely restructured. Although the current "price war" remains fierce, there is a general consensus in the industry that starting this year, the shift from "price war" to "value-driven" competition will intensify. Competition between industries and companies will shift from price competition to a contest of product and service capabilities, leading the industry to place greater emphasis on R&D investment and technological innovation, and the market will become more rational.

[0005] Against this backdrop, large-capacity modular design modules can effectively reduce the number of parts, simplify the system structure, reduce system and manufacturing costs, and increase system energy density, while also helping to improve production line profitability. For energy storage owners, large-capacity cells can effectively improve land utilization, significantly reduce operation and maintenance costs, and significantly increase investment returns. Utility Model Content

[0006] In response to the severe challenges faced by the energy storage industry, this utility model proposes a modular large-capacity battery cell energy storage module that is reasonably designed, simple in structure, easy to process, and modularly designed. This module increases the usable capacity of the device, significantly increases revenue to a certain extent, reduces costs, and ensures the heat dissipation performance of the device, effectively meeting the usage requirements.

[0007] To achieve the above objectives, the present invention adopts a modular large-capacity battery cell energy storage module, comprising an energy storage module body, which includes battery cells, end plates, heat insulation pads, CCS components, output blocks, steel strips, and plastic straps. Several battery cells are arranged in an equidistant array, with electrical connections between pairs of cells via CCS components. The sides of adjacent battery cells are connected using heat insulation pads. Two end plates are placed at the ends of the assembled battery cells and connected to the cells using heat insulation pads. A positioning structure is provided on one side of the top of each end plate to facilitate the installation of the output blocks. Lifting holes are provided on the outer side of each end plate to facilitate the hoisting of the energy storage module body. Slots are provided at the corners of both sides of each end plate to position the steel strips and plastic straps.

[0008] Preferably, the heat insulation pad includes a hollow heat insulation board with a heat dissipation component inside. The heat dissipation component includes long heat dissipation fins arranged longitudinally, and short heat dissipation fins are arranged between two adjacent long heat dissipation fins. The heat insulation board has through holes arranged vertically and located between two adjacent heat dissipation components. The outer side of the heat insulation board is also provided with a supporting convex plate, and an adhesive backing is provided between two adjacent convex plates to facilitate the bonding of two adjacent battery cells or a battery cell and an end plate. The bottom of the heat insulation pad is flush with the bottom of the battery cell.

[0009] Preferably, the CCS assembly includes an output aluminum bar, a series aluminum bar, a sampling harness, and a vacuum forming bracket. The output aluminum bar has a first position positioning hole and a first welding positioning hole, and the series aluminum bar has a second position positioning hole and a second welding positioning hole. The output aluminum bar and the series aluminum bar are placed on top of each other inside the vacuum forming bracket. The series aluminum bar is used to connect the positive and negative terminals of adjacent cells, and the output aluminum bar is used for the external power output of the entire structure. Sampling terminals are welded on both the output aluminum bar and the series aluminum bar. The other side of the sampling terminals is connected to the sampling harness to collect the operating information of each cell and feed it back to the control system in real time, thereby realizing the signal acquisition of the entire structure.

[0010] Preferably, the blister bracket has grooves for placing the corresponding output aluminum bars and series aluminum bars. The grooves have positioning bosses and welding holes for welding. The blister bracket has several wiring grooves distributed along the length direction on the same side end face of the battery modules, output aluminum bars and series aluminum bars. The wiring grooves have reinforcing ribs, and the reinforcing ribs corresponding to the direction of the sampling wire bundle have binding holes for bundling the sampling wire bundle. The wiring grooves are symmetrically arranged in the width direction.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model provides a modular, high-capacity battery cell energy storage module. Utilizing a CCS (Computer-Controlled System) component and end plate, the end plate and battery cell are modularly manufactured, reducing the number of components in the device. The CCS component is optimized to ensure convenient power output and signal acquisition for the entire structure's electrical connections. Compared to existing equipment, this design effectively reduces component input, simplifies the system structure, lowers system and manufacturing costs, and increases energy density, while also improving production line profitability. For energy storage owners, the high-capacity battery cell effectively improves land utilization, significantly reduces operation and maintenance costs, and significantly increases investment returns. The included heat insulation pad further enhances the device's functionality. Furthermore, the device's reasonable design, simple structure, convenient processing, and modular design increase the device's usable capacity, significantly increasing revenue and reducing costs. Simultaneously, it ensures excellent heat dissipation performance, effectively meeting usage requirements. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a modular high-capacity battery cell energy storage module; Figure 2 This is an exploded structural diagram of a modular, high-capacity battery cell energy storage module. Figure 3 This is a schematic diagram of the heat insulation pad structure provided by this utility model; Figure 4 This is a partial internal structure side view of the heat insulation pad provided by this utility model; Figure 5 A schematic diagram of part of the internal structure of the heat insulation pad provided by this utility model; Figure 6 This is a schematic diagram of the structure of the CCS component provided by this utility model; Figure 7 This is a schematic diagram of the end plate structure provided by this utility model; In the above figures, 1. Battery cell; 2. CCS module; 201. Output aluminum bar; 2011. First position positioning hole; 2012. First welding positioning hole; 202. Series aluminum bar; 2021. Second position positioning hole; 2022. Second welding positioning hole; 203. Sampling harness; 2031. Sampling terminal; 204. Vacuum forming bracket; 2041. Boss; 2042. Groove; 2043. Terminal welding hole; 2044. Cable routing groove; 2045. Cable binding hole; 2046. Reinforcing rib; 3. End plate; 301. Positioning structure; 302. Lifting hole; 303. Slot; 4. Output block; 5. Heat insulation pad; 501. Adhesive backing; 502. Heat insulation board; 503. Long heat sink; 504. Short heat sink; 505. Through hole; 506. Protruding plate; 6. Steel strip; 7. Plastic binding strap. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0016] Examples, such as Figures 1-7As shown, a modular high-capacity battery cell energy storage module includes an energy storage module body. To optimize the design of the energy storage module body, on the one hand, the input of components is reduced, the system structure is simplified, and on the other hand, the performance of the device is improved. The energy storage module body includes battery cells 1, end plates 3, heat insulation pads 5, CCS components 2, output blocks 4, steel strips 6, and plastic straps 7. Several battery cells 1 are arranged in an equidistant array. The upper part of each pair of battery cells 1 is electrically connected via CCS components 2. The sides of adjacent battery cells 1 are connected using heat insulation pads 5. Two end plates 3 are placed on the two ends of the assembled battery cells 1. At the side end, and connected to the battery cell 1 using the heat insulation pad 5, a positioning structure 301 is provided on the top side of the end plate 3 to facilitate the installation of the output block 4. The positioning structure 301 is a key-shaped positioning hole. The upper part of the output block 4 is first connected to the output aluminum bar 201 in the CCS component 2, and a snap-fit ​​block is provided on the lower side of the output block 4. It is fixed to the positioning structure 301 at the corresponding position on both sides of the end plate 3 by snap-fit, which is used for the electrical connection between the module output aluminum bar 201 and the copper busbar, thereby outputting energy to the outside. The output block 4 is fixed to the corresponding position on both sides of the end plate 3. After being positioned on the positioning structure 301, it is used for the electrical connection between the module output aluminum bar 201 and the copper busbar, thereby outputting energy to the outside; the top surface of the output block 4 and the bottom surface of the output aluminum bar 201 maintain a certain adjustment gap to absorb the tolerance in the height direction of the entire structure; the outer side of the end plate 3 is provided with a lifting hole 302 to facilitate the hoisting of the energy storage module body. The above design is as follows: after the energy storage module is manufactured, it needs to be transported. Therefore, the outer side of the end plate 3 is provided with a lifting hole 302 for hoisting, so as to adjust the position of the device by hoisting; the outer side of the end plate 3 is provided with a slot 303 for the steel strip. The pre-positioning of steel strap 6 and plastic strap 7: The two corners of the end plate 3 are provided with slots 303 to position the steel strap 6 and plastic strap 7. That is to say: in order to prevent the entire module from being damaged during transportation and operation, the entire module needs to be rigid enough. Therefore, steel strap 6 and plastic strap 7 are used to bind it. Steel strap 6 and plastic strap 7 need to be inserted into the slots 303. After multiple battery cells 1 and the end plates 3 on both sides are connected by heat insulation pads 5, steel strap 6 and plastic strap 7 are put on the outside of them to further tighten the entire component and ensure its stability in use. In the above process: Utilizing the established CCS component 2 and end plate 3, the end plate 3 and the battery cell 1 are modularly manufactured, reducing the number of components in the equipment. Furthermore, the CCS component 2 is optimized to ensure convenient power output and signal acquisition for the entire structure's electrical connections. Compared to existing equipment, this design effectively reduces the investment in components, simplifies the system structure, lowers system and manufacturing costs, and increases energy density, while also improving production line profitability. For energy storage owners, the large-capacity battery cell 1 effectively improves land utilization, significantly reduces operation and maintenance costs, and significantly increases investment returns. Utilizing the established heat insulation pad 5, on the one hand, the device is rationally designed, has a simple structure, is easy to process, and is modularly installed, increasing the usable capacity of the equipment and significantly increasing revenue and reducing costs to a certain extent. Simultaneously, it ensures the heat dissipation performance of the equipment, effectively meeting usage requirements.

[0017] To ensure the rationality of the device's design, the heat insulation pad 5 includes a hollow heat insulation plate 502. This hollow design allows for lightweight design of the device. Furthermore, a heat dissipation component is installed within the heat insulation plate 502. This component includes longitudinally arranged long heat dissipation fins 503, with short heat dissipation fins 504 positioned between adjacent long heat dissipation fins 503. Vertically arranged through holes 505 are formed within the heat insulation plate 502 and are positioned between adjacent heat dissipation components. Specifically, the heat dissipation components are staggered with the adhesive backing 501 component, and their positions correspond to the protruding plate 506. The heat dissipation fins effectively dissipate heat transferred between the protruding plate 506 and the battery cell 1. The longitudinal permeability of the heat dissipation fins and the vertical through holes 505 work together to effectively dissipate heat generated by the battery cell 1. The outer surface of the heat insulation plate 502... The side is also provided with a supporting convex plate 506, which increases the contact area between the battery cell 1 and the heat insulation pad 5 to a certain extent and supports it to ensure the stability of its subsequent installation. Adhesive 501 is provided between two adjacent convex plates 506 to facilitate the bonding of adjacent battery cells 1 or battery cell 1 to end plate 3. The bottom of the heat insulation pad 5 is flush with the bottom of the battery cell 1. It should be further noted that the heat insulation pad 5 has adhesive 501 on both sides to provide sufficient shear force to the battery cell 1 and prevent the module from... During the transfer process, if a single battery cell 1 falls off, the outer end face of the adhesive backing 501 is flush with the outer end face of the convex plate 506 to ensure the bonding effect between the equipment components. In addition, for the connection process between the end plate 3 and the battery cell 1, the end plate 3 and the battery cell 1 are also bonded by the adhesive backing 501 to ensure that there is a large enough shear force between the end plate 3 and the battery cell 1 to prevent the end plate 3 from being pulled out of the entire structure. A certain gap is maintained between the bottom of the end plate 3 and the bottom of the battery cell 1 to facilitate the subsequent installation of the battery pack and to reserve space for applying adhesive.

[0018] To improve the functionality of the device, the CCS component 2 includes an output aluminum bar 201, a series aluminum bar 202, a sampling harness 203, and a vacuum forming bracket 204. The CCS component 2 realizes the power output and signal acquisition of the entire structure's electrical connection. The output aluminum bar 201 realizes the power output of the entire structure. The output aluminum bar 201 has a first position positioning hole 2011 and a first welding positioning hole 2012. The series aluminum bar 202 has a second position positioning hole 2021 and a second welding positioning hole 2022. The output aluminum bar 201 and the series aluminum bar 202 are placed above the vacuum forming bracket 204. The series aluminum bar 202 is used to connect the positive and negative terminals of adjacent battery cells 1. The output aluminum bar 201 is used for the external power output of the entire structure. Sampling terminals 2031 are welded on both the output aluminum bar 201 and the series aluminum bar 202. The other side of the sampling terminal 2031 is connected to the sampling harness 203 to collect the operating information of each battery cell 1 and feed it back to the control system in real time to realize the signal acquisition of the entire structure.

[0019] To further optimize the structure of the CCS component 2, the vacuum forming bracket 204 has grooves 2042 for placing the output aluminum bars 201 and the series aluminum bars 202. The grooves 2042 contain positioning bosses 2041 and electrode welding holes 2043 for welding. The vacuum forming bracket 204 has several wiring grooves 2044 distributed along the length of the same side end face of the battery modules, the output aluminum bars 201, and the series aluminum bars 202. Reinforcing ribs 2046 are provided within the wiring grooves 2044. This further optimizes the structure of the vacuum forming bracket 204. The sampling harness 203 is reinforced by a reinforcing rib 2046 with a tying hole 2045 for bundling the sampling harness 203. The cable tray 2044 is symmetrically arranged in the width direction. In the above design, the groove 2042 makes the aluminum bar assembly fit more closely with the blister bracket 204, preventing the possibility of protrusion after the equipment assembly is assembled. At the same time, the cable tray 2044 not only ensures that the sampling harness 203 has sufficient arrangement space, but also optimizes its arrangement and reduces costs.

[0020] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A modular high-capacity battery cell energy storage module, comprising an energy storage module body, characterized in that, The energy storage module body includes battery cells, end plates, heat insulation pads, CCS components, output blocks, steel strips, and plastic straps. Several battery cells are arranged in an equidistant array. The upper part of each pair of battery cells is electrically connected through the CCS components. The sides of two adjacent battery cells are connected by heat insulation pads. Two end plates are placed at the two ends of the combined battery cells and are connected to the battery cells by heat insulation pads. The top side of the end plate is provided with a positioning structure to facilitate the installation of the output blocks. The outer side of the end plate is provided with a hoisting hole to facilitate the hoisting of the energy storage module body. The two corners of the end plate are provided with slots to position the steel strips and plastic straps.

2. The modular high-capacity battery cell energy storage module according to claim 1, characterized in that, The heat insulation pad includes a hollow heat insulation board with a heat dissipation component inside. The heat dissipation component includes long heat dissipation fins arranged longitudinally, with short heat dissipation fins between two adjacent long heat dissipation fins. The heat insulation board has through holes arranged vertically and positioned between two adjacent heat dissipation components. The outer side of the heat insulation board also has a supporting convex plate, with an adhesive backing between two adjacent convex plates to facilitate the bonding of two adjacent battery cells or a battery cell to an end plate. The bottom of the heat insulation pad is flush with the bottom of the battery cell.

3. The modular high-capacity battery cell energy storage module according to claim 2, characterized in that, The CCS component includes an output aluminum bar, a series aluminum bar, a sampling harness, and a vacuum forming bracket. The output aluminum bar has a first position positioning hole and a first welding positioning hole, and the series aluminum bar has a second position positioning hole and a second welding positioning hole. The output aluminum bar and the series aluminum bar are placed on top inside the vacuum forming bracket. The series aluminum bar is used to connect the positive and negative terminals of adjacent cells, and the output aluminum bar is used for the external power output of the entire structure. Sampling terminals are welded on both the output aluminum bar and the series aluminum bar. The other side of the sampling terminal is connected to the sampling harness to collect the operating information of each cell and feed it back to the control system in real time, realizing the signal acquisition of the entire structure.

4. A modular high-capacity battery cell energy storage module according to claim 3, characterized in that, The vacuum forming bracket has grooves for placing the corresponding output aluminum bars and series aluminum bars. The grooves have positioning bosses and welding holes for welding. The vacuum forming bracket has several wiring grooves distributed along the length direction on the same side end face of the battery modules, output aluminum bars and series aluminum bars. The wiring grooves have reinforcing ribs, and the reinforcing ribs corresponding to the direction of the sampling wire bundle have binding holes for bundling the sampling wire bundle. The wiring grooves are symmetrically arranged in the width direction.

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