Unit arrangement for an energy storage device, in particular for a motor vehicle, energy storage device, motor vehicle

By introducing temperature-regulating cell receiving parts and Peltier elements into the battery cell arrangement structure, combined with phase change materials and heat pipes, the thermal and charge balance problems of battery cells are solved, achieving efficient electrothermal coupling, extending service life and simplifying the cooling system.

CN123057628APending Publication Date: 2026-11-06BAYERISCHE MOTOREN WERKE AG
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Patent Information

Application Number
CN202580021469.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-06-20
Filing Date
2025-05-26
Publication Date
2026-11-06

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to effectively combine thermal and charge balance in battery cells, resulting in energy loss and shortened lifespan, and the cooling system is complex and costly.

Method used

By employing a regularly arranged temperature-regulating cell receiving section, combined with Peltier elements and phase change materials, efficient temperature regulation and heat management of the battery cells are achieved. Heat exchange is carried out through heat pipes to realize an electrothermal coupled cell balance system.

Benefits of technology

It achieves efficient temperature regulation and thermal balance of individual battery cells, reduces energy loss, extends service life, and simplifies the complexity of the cooling system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a cell arrangement for an energy storage device, in particular for a motor vehicle, comprising a plurality of cylindrical battery cells, a plurality of regularly arranged cell receptacles, wherein one of the battery cells is arranged in each of the cell receptacles, and a temperature control device, wherein the temperature control device is arranged in a cell receptacle configured as a temperature control cell and is designed to be loaded with electrical energy in order to temperature control the battery cells arranged in the cell receptacles arranged around the temperature control device.
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Description

Technical Field

[0001] This disclosure relates to a single-unit arrangement structure for an energy storage device, particularly for a motor vehicle. This disclosure also relates to an energy storage device and a motor vehicle. Background Technology

[0002] Such energy storage devices typically comprise multiple battery cells or units connected in parallel and / or series, thus forming a high-voltage storage device for motor vehicles, also known as a traction battery. The energy storage device is designed to discharge the battery cells and provide electrical energy to operate the motor vehicle and / or, for example, to provide electrical energy outside the vehicle via charging posts, and to charge the battery cells of the energy storage device via charging posts and / or by recovering the charged electrical energy during driving.

[0003] Energy storage devices or individual battery cells, especially lithium-ion batteries, generate heat during operation and can become extremely hot depending on the intended use and load. To suppress overheating and extend battery life, energy storage devices may incorporate cooling systems. These cooling systems are typically complex and require sophisticated temperature monitoring. Furthermore, it may be necessary to heat the energy storage device to, for example, reduce aging effects at low temperatures.

[0004] DE102021119070A1 discloses a method, a transport vehicle, and an arrangement structure for an electrochemical energy storage device. The arrangement structure includes: a honeycomb structure with hollow cylindrical tubular components and sub-cavities, and individual cells within the tubular components, wherein at least a portion of each sub-cavity is arranged adjacent to three tubular components within the tubular structure, and each sub-cavity spatially alternately has a cooling medium channel or an active heating device.

[0005] In other words, the battery cells are arranged in a honeycomb pattern. Cooling medium channels or active heating devices are alternately arranged between the battery cells to enable temperature regulation of the battery cells.

[0006] Similar content is disclosed in JP2022048813A.

[0007] WO2023 / 006725A1 relates to an electrochemical energy storage device having a plurality of electrochemical cells in a receiving space within a housing, wherein the electrochemical energy storage device includes a first channel extending parallel to the upper or lower side of the housing and one or more heat transfer elements arranged in a space between the electrochemical cells, wherein at least one of the heat transfer elements extends into the first channel.

[0008] Furthermore, for individual battery cells, it is known that a balance can be achieved between cells, for example, regarding the charge of the individual cells; this is called cell balancing or cell equilibrium. Cell equilibrium is known to be performed passively, for example, via a discharge resistor, or actively. However, active cell balancing is relatively costly and resource-intensive. In the case of passive cell balancing, highly charged cells are discharged via a discharge resistor, where electrical energy is lost or dissipated as heat.

[0009] In terms of thermal properties, it is also suitable to achieve thermal equalization or homogenization of individual cells to similar temperature levels, so that battery cells have similar power capabilities and / or can be used more uniformly to fully utilize the lifespan of the battery cells. This is particularly useful for lifespan, modeling of the individual cell system, and for calculating important functions and / or characteristics, such as state of charge (SoC) and / or state of health (SoH). Thermal equalization is typically carried out via cooling systems, i.e., at the individual cell module level or the battery pack level.

[0010] The coupling between electrical and thermal cell balance is not known, so energy loss or dissipation occurs especially in the case of passive cell balance. Summary of the Invention

[0011] In the context of the prior art, the object of this disclosure is to provide an apparatus suitable for enriching and at least improving upon the aforementioned aspects of the prior art. In particular, the object of this disclosure is to enable temperature regulation, i.e., cooling and / or heating of battery cells, which is effective for cylindrical battery cells and opens up the feasibility of a cell balancing system providing electrothermal coupling.

[0012] The task described herein is achieved through the features of the independent claims. The dependent claims contain improvements to this disclosure.

[0013] Thus, according to one aspect of this disclosure, the task is solved by a cell arrangement structure for an energy storage device, particularly for a motor vehicle, wherein the cell arrangement structure comprises: a plurality of cylindrical battery cells; a plurality of regularly arranged cell receiving portions, wherein one of the battery cells is arranged in each of the cell receiving portions; and a temperature regulating device, wherein the temperature regulating device is arranged in the cell receiving portion configured as a temperature regulating cell and designed to be loaded with electrical energy in order to regulate the temperature of the battery cells arranged in the cell receiving portions surrounding the temperature regulating device.

[0014] In other words, a regular, for example honeycomb-like arrangement of battery cells in the form of circular cells is proposed, wherein "empty cells" are inserted at defined intervals relative to the battery cells; that is, cells that do not contain battery cells but serve as temperature-regulating cells and each has a cell receiving portion with a temperature-regulating device. The temperature-regulating device can be used to regulate the temperature or thermal condition of adjacent battery cells, i.e., heating and / or cooling. This results in an "air-conditioned cell," similar to the so-called "heated cell" in a honeycomb.

[0015] By arranging temperature-regulating cells or devices within a regularly arranged set of cell receivers, efficient packaging of battery cells can be achieved. Typically, each temperature-regulating cell has six nearest neighbors—cells directly adjacent to each other and in contact with the temperature-regulating cell's contacts. These cells are configured as cell receivers, and each cell contains one of the battery cells. This allows for efficient and space-efficient connection between the temperature-regulating device and the battery cells. Arranging the temperature-regulating device within a cell receiver configured as or used as a temperature-regulating cell eliminates the need for dedicated intermediate spaces between cell receivers, thus simplifying integration.

[0016] The cell arrangement structure may include multiple temperature control devices, which may optionally operate independently and / or in coordination with each other to regulate the temperature of battery cells arranged in cell receiving sections surrounding the respective temperature control devices. Here, the power supply of one or more temperature control devices may be associated with cell balancing. Therefore, this disclosure enables an electrothermal coupled cell balancing system by arranging temperature-controlled cells, or cooling and / or heating cells, to improve the lifespan and efficiency of the cell module.

[0017] Alternatively, the temperature regulating device can be installed in a cell arrangement structure with non-cylindrical battery cells. For example, the battery cell may have a cross-section, especially a hexagonal cross-section, where a temperature regulating cell can also be installed, and the temperature regulating device can be arranged in the temperature regulating cell.

[0018] Optionally, the temperature-regulating unit has six sides, and the temperature-regulating device is designed for individual temperature regulation of one or more of the six sides. It has been recognized that, for example, one or more of the sides can be effectively regulated, i.e., cooled or heated according to the circuitry, by means of one or more Peltier elements included in the temperature-regulating device. Here, the six sides may be thermally connected to the one or more Peltier elements and / or one Peltier element may at least partially constitute one of the sides.

[0019] Optionally, the single-unit arrangement includes a second temperature-regulating device; the second temperature-regulating device is disposed in a single-unit receiving portion configured as a second temperature-regulating single-unit; and the temperature-regulating device and the second temperature-regulating device are interconnected via heat pipes for heat exchange. The heat pipe, or heat-pipe, is designed to thermally couple single-unit regions. Here, heat can be transferred, for example, from the first temperature-regulating single-unit to the second temperature-regulating single-unit or vice versa. This allows heat not to be completely dissipated, but rather the thermal energy can be reused at other locations.

[0020] Optionally, the cell arrangement structure includes a second temperature regulating device; the second temperature regulating device is arranged in a cell receiving portion configured as a second temperature regulating cell, and is designed to be loaded with electrical energy to regulate the temperature of the battery cells arranged in the cell receiving portion surrounding the temperature regulating device. Thus, when the temperature regulating device and the second temperature regulating device are respectively loaded with electrical energy, different regions of the cell arrangement structure can be regulated independently and / or in a coordinated manner.

[0021] Optionally, a temperature-regulating cell defines a first set of battery cells that can be regulated by the temperature-regulating device, and a second temperature-regulating cell defines a second set of battery cells that can be regulated by a second temperature-regulating device; and the cell arrangement structure is designed to selectively load the temperature-regulating device and / or the second temperature-regulating device with electrical energy from the battery cells of the first set and / or from the battery cells of the second set, respectively. This can provide an implementation that combines cell balancing with temperature regulation functions for heating and / or cooling cell module areas. Electrical energy from cell balancing can be used to heat and / or cool defined module areas. This achieves not only electrical balance of the cell module but also thermal balance of the cell module. This can have a positive impact on the lifespan of the cell module and reduce electrical balance losses.

[0022] Optionally, a phase-change material (PCM) may be disposed in the temperature-regulating monomer and / or between the temperature-regulating monomer and an adjacent monomer receiving portion. The PCM may be configured as a filler material between circular and hexagonal monomers and / or as a filler material for the temperature-regulating monomer. The PCM provides thermal inertia, under which it absorbs and / or releases heat at a constant temperature. This allows for more targeted implementation of monomer thermal equilibrium.

[0023] According to one aspect of this disclosure, an energy storage device is provided, particularly for use in motor vehicles, wherein the energy storage device includes the aforementioned single-unit arrangement structure. Optionally, the single-unit arrangement structure has one or more of the features described above as optional and / or advantageous to obtain the associated technical effects.

[0024] Optionally, the energy storage device has a controller and the above-described cell arrangement structure, wherein the controller is designed to selectively load the temperature regulating device and / or the second temperature regulating device with electrical energy from the cells of the first set and / or from the cells of the second set.

[0025] Optionally, the energy storage device has one or more temperature control switches for selecting one or more temperature control devices. Alternatively or additionally, the energy storage device has one or more cell selection switches for selecting one or more sets of the battery cells. The energy storage device alternatively or additionally includes one or more balancing stages or switches for passive balancing, wherein the balancing stages have discharge resistors for logic battery cells, i.e., one or more battery cells, that can be switched by the switches. This provides an embodiment for combining cell balancing with temperature control functions for heating and / or cooling cell module areas. The one or more temperature control switches can select one or more temperature control devices to be activated, and the cell selection switches can select one or more sets of battery cells for providing electrical energy. The electrical energy from the cell balancing of one set of the battery cells can be used to heat and / or cool a determined, optionally arbitrary set of battery cells. This achieves not only electrical balance of the cell module but also thermal balance of the cell module.

[0026] According to one aspect of this disclosure, a motor vehicle including the above-described energy storage device is provided. Optionally, the energy storage device of the motor vehicle has one or more of the features described above as optional and / or advantageous to obtain the associated technical effects. Attached Figure Description

[0027] Next, the implementation methods will be described with reference to the attached figures.

[0028] Figure 1 The diagram schematically illustrates a motor vehicle, energy storage device, and individual unit arrangement according to one aspect of the present disclosure;

[0029] Figure 2 The schematic diagram illustrates a single-unit arrangement structure according to one aspect of this disclosure;

[0030] Figure 3The schematic diagram illustrates a single-unit arrangement structure according to one aspect of this disclosure; and

[0031] Figure 4 The features of an energy storage device according to one aspect of this disclosure are schematically shown. Detailed Implementation

[0032] Figure 1 The diagram schematically illustrates a motor vehicle 50, an energy storage device 55, and a single-unit arrangement 58, respectively, according to one aspect of this disclosure. The motor vehicle 50 is a land vehicle. The motor vehicle 50 is a passenger car and / or a commercial vehicle. In another embodiment (not shown), the energy storage device 55 may be used in some form, such as in a stationary application, and / or constructed as a low-voltage battery.

[0033] The motor vehicle 50 has an energy storage device 55, also known as a traction battery, and an electric drive device 52. The energy storage device 55 has a cell arrangement structure 58 with multiple battery cells 56 (see...). Figure 2 and 3 The battery cells and their quantities are shown schematically only. The energy storage device 55 or battery cell 56 is designed to be loaded with electrical energy to charge the battery cell 56, i.e., to increase the state of charge of the battery cell 56. The energy storage device 55 or battery cell 56 is designed to provide electrical energy for operating the motor vehicle 50 and / or the electric drive unit 52, wherein the battery cell 56 is discharged, i.e., the state of charge of the battery cell 56 decreases. Heat is generated in this process.

[0034] Furthermore, the energy storage device 54 includes a controller 54. The controller 54 is, for example, a battery management unit (BMU). The controller 54 is designed to detect and process measurements relating to voltage, current, and / or temperature of each individual battery cell 58. The controller 54 is designed to implement cell balancing and thermal balancing, thereby reducing voltage differences, or state-of-charge differences, and temperature differences between the individual battery cells 58. For this purpose, the cell arrangement structure 58 includes a temperature regulating device 60 or a second temperature regulating device 61, each controllable by the controller 54 and designed to be loaded with electrical energy to regulate the temperature of each individual battery cell 56, i.e., cooling and / or heating.

[0035] The features of the single-unit arrangement structure 58, the temperature control device 60 or the second temperature control device 61, and the energy storage device 55 are as follows: Figures 2 to 4 To be further described.

[0036] Figure 2 A schematic diagram illustrates a single-unit arrangement structure 58 according to one aspect of this disclosure. Figure 2 The single-unit arrangement structure 58 is for use, particularly for use, in a motor vehicle 50 as an energy storage device 55. The features of such a motor vehicle 50, such an energy storage device 55, and single-unit arrangement structure 58 are described below. Figure 1 Describe it. Figure 2 Reference Figure 1 Describe it.

[0037] The cell arrangement structure 58 has a plurality of cylindrical battery cells 56. That is, the battery cells 56 are circular cells. Each battery cell 56 has the same geometry, especially the same diameter. In order to effectively arrange the battery cells 56, the battery cells 56 are arranged in a triangular grid or honeycomb pattern. For this purpose, the cell arrangement structure 58 has a plurality of regularly arranged cell receiving portions 59, wherein one battery cell from each of the battery cells 56 is arranged in each of the cell receiving portions 59. The cell receiving portions 59 have dimensions and / or geometries for receiving one battery cell from each of the battery cells 56. The cell arrangement structure 58 may have cell receiving portions 59 configured as supports and / or the cell receiving portions 59 may be manufactured by covering the battery cells 58 with foam during the manufacture of the cell arrangement structure 58.

[0038] One of the monomer receiving portions 59 is configured as a temperature-regulating monomer 59a, or is used as a temperature-regulating monomer 59a. The temperature-regulating monomer 59a therefore has a geometry corresponding to the geometry of the other monomer receiving portions 59.

[0039] The cell arrangement structure 58 includes a temperature regulating device 60. The temperature regulating device 60 is arranged in a cell receiving portion 59 configured as a temperature regulating cell 59a and is designed to be loaded with electrical energy to regulate the temperature of the battery cells 56 arranged around the cell receiving portion 59. For example, the temperature regulating device 60 can be loaded with electrical energy from the battery cells 56 in a controllable manner via a controller 54 (see [link to controller]). Figure 4 ).

[0040] The temperature-regulating cell 59a has six sides 60a, and the temperature-regulating device 60 is designed for individual temperature regulation of one or more of the six sides 60a. For this purpose, Peltier elements may be arranged on and / or thermally coupled to each of the six sides 60a, each Peltier element being individually charged with electrical energy and capable of heating or cooling the cell 56 adjacent to the side 60a. Alternatively, fewer Peltier elements may be provided, thermally coupled to the sides 60a via thermally conductive elements.

[0041] A phase change material is disposed in the temperature-regulating cell 59a and / or between the temperature-regulating cell 59a and the adjacent cell receiving portion 59. The phase change material may be selected such that it exhibits a phase change within a temperature range relevant to the cell 56. For example, the phase change material may be designed to have a phase change at temperatures between -10°C and 70°C, and optionally between 5°C and 55°C.

[0042] The cell arrangement structure 58 has a second temperature regulating device 61. The second temperature regulating device 61 is arranged in the cell receiving portion 59 configured as a second temperature regulating cell 59b. Here, the second temperature regulating device 61 is constructed similarly to the temperature regulating device 61, and the second temperature regulating cell 59b is constructed similarly to the cell receiving portion 59a. The second temperature regulating device 61 is therefore designed to be loaded with electrical energy in order to regulate the temperature of the battery cells 56 arranged in the cell receiving portion 59 surrounding the temperature regulating device 60.

[0043] Temperature-regulating cell 59a defines a first set 63 of battery cells 56 that can be regulated by temperature-regulating device 60. Battery cells 58 arranged in cell receiving portions 59 adjacent to side 60a can be directly regulated by temperature-regulating device 60. Similarly, second temperature-regulating cell 59b defines a second set 64 of battery cells 56 that can be regulated by second temperature-regulating device 61. Cell arrangement structure 58 is designed to selectively load temperature-regulating device 60 and / or second temperature-regulating device 61 with electrical energy from battery cells 56 in the first set 63 and / or from battery cells 56 in the second set 64 (see [link to relevant documentation]). Figure 4 ).

[0044] In this way, the single-unit arrangement structure 58 provides electrical and thermal equilibrium coupling by using balanced electrical energy from the first set 63 and / or the second set 64 to heat and / or cool the respective single-unit module areas.

[0045] Temperature control device 60 and second temperature control device 61 are interconnected via heat pipe 62 or heat pipe for heat exchange.

[0046] The arrangement of the temperature regulating device 60 and the second temperature regulating device 61 may differ. Figure 2 The embodiment shown. For example, the temperature regulating device 60 and the second temperature regulating device 61 can be arranged closer to each other (see [reference]). Figure 3 (or arranged further apart from each other.)

[0047] Figure 3 The single-unit arrangement structure 58 according to one aspect of this disclosure is schematically shown. Figure 3 Shown in perpendicular to Figure 2 The individual unit arrangement structure in the cross section of the plane is shown in Figure 58. Figure 3 Reference Figure 2Describe it.

[0048] The battery cell 56 is connected via the electrical contacts of the cell contact connection system 65 as is normally permitted, so that electrical energy can be applied to and / or extracted from the battery cell 56. The temperature control device 60 and the second temperature control device 61 are thermally coupled to each other via a heat pipe 62.

[0049] Figure 4 Features of an energy storage device 55 according to one aspect of this disclosure are schematically shown. Temperature regulation of the individual battery cells 56 is described in particular here. Such an energy storage device 55 refers to... Figure 1 The description is provided, and such a battery cell 56 is referenced. Figures 1 to 3 Describe it. Figure 4 Reference Figures 1 to 3 Describe it.

[0050] Here, the battery cells 56 of the first set 63 and the battery cells 56 of the second set 64 are interconnected as logical cells.

[0051] The energy storage device 55 has a cell selection switch 54d for each set of battery cells 56 in the sets 63 and 64, i.e., for each logic battery cell 56; a temperature control switch 53c for each temperature control device 60 and 61 for selecting one or more of the temperature control devices 60 and 61; a switch 54e for passive balancing for each set of battery cells 56 in the sets 63 and 64; and a balance regulator 54a. The balance regulator 54a (illustrated only, see [reference needed]) Figure 1 The system is designed for controlling the balance of electrical and thermal individual cells. For this purpose, the cell selection switch 54d, the temperature control switch 53c, and the passive balancing switch 54e can be controlled by a controller 54 including a balance regulator 54a. The balance regulator 54a can be considered a higher-level unit that manipulates the cell selection switch 54d, the temperature control switch 53c, and the passive balancing switch 54e according to an electrical balance strategy and / or a thermal balance strategy. The passive balancing switch 54e is particularly capable of enabling the connection of a discharge resistor (not labeled) as needed. Closing the passive balancing switch 54e, connected in series with the corresponding discharge resistor, enables passive cell balancing of the logic cell. The cell selection switch 54d enables cell balancing in which one of the temperature control device 60 and / or the second temperature control device 61 is electrically charged. Which of the temperature control devices 60 and 61 is electrically charged can be controlled by the temperature control switch 53c.

[0052] Furthermore, the energy storage device 55 has a switching device 54b for switching the polarity of the temperature control device 60 and / or the second temperature control device 61. The switching device 54b can be controlled by the controller 54.

[0053] The energy storage device 55 has a cell selection switch 54d and a temperature control switch 53c, so as to electrically connect one or more of the sets 63, 64 of the battery cells 56 to the temperature control device 60 and / or one or more of the second temperature control device 61 and to load electrical energy onto them for temperature control.

[0054] Controller 54 (see Figure 1 The controller 54 is designed to selectively apply electrical energy from the battery cells 56 of the first set 63 and / or from the battery cells 56 of the second set 64 to the temperature regulating device 60 and / or the second temperature regulating device 61. Specifically, the controller 54 is designed to selectively and reliably apply electrical energy from the battery cells 56 of the first set 63 and / or from the battery cells 56 of the second set 64 to the temperature regulating device 60 and / or the second temperature regulating device 61 using the balance regulator 54a. For example, if the battery cells 56 of the first set 63 are balanced, electrical energy can be applied to one of the second temperature regulating devices 61 to regulate the temperature of the battery cells 56 of the second set 64.

[0055] In other words, controller 54 (see Figure 1 The device is designed for the following functions (flexibility): 1. To selectively supply electrical energy from the battery cells 56 of defined sets 63, 64 to the temperature control devices 60, 61 of defined sets for heating and / or cooling the battery cells 56 surrounding the temperature control devices 60, 61 respectively; 2. To selectively charge the battery cells 56 of another defined set 63, 64 from the battery cells 56 of defined sets 63, 64 (active balancing); 3. To selectively supply electrical energy from the temperature control devices 60, 61 of defined sets to the temperature control devices 60, 61 of another defined set; and 4. To selectively charge the battery cells 56 of a defined set from the temperature control devices 60, 61 of defined sets. Therefore, the temperature control cells 59a, 59b and the battery cells 56 can also constitute sources and sinks of electricity for implementing thermal balance and / or (active) electrical balance.

[0056] List of reference numerals (part of the instruction manual)

[0057] 50 motor vehicles

[0058] 52 Electric drive unit

[0059] 54 controller

[0060] 54a Balance Regulator

[0061] 54b Switchgear

[0062] 54C Temperature Control Switch

[0063] 54d Individual Selector Switch Device

[0064] 54e is a switch used for passive balancing.

[0065] 55 accumulator device

[0066] 56 cell

[0067] 58-unit layout structure

[0068] 59 Individual Receiving Section

[0069] 59a temperature-regulating monomer

[0070] 59b Second Temperature-Regulating Unit

[0071] 60 temperature control device

[0072] 60a side

[0073] 61 Second temperature control device

[0074] 62 heat pipe

[0075] 63 First Set

[0076] 64 Second Set

[0077] 65 Single-unit contact connection system

Claims

1. A single-unit arrangement structure (58) for an energy storage device (55), the energy storage device being particularly used in a motor vehicle (50), wherein, The single-unit arrangement structure (58) has: - Multiple cylindrical battery cells (56); - A plurality of regularly arranged cell receiving sections (59), wherein each of the cell receiving sections (59) contains one of the battery cells (56); and - Temperature regulating device (60), wherein the temperature regulating device (60) is arranged in a cell receiving portion (59) configured as a temperature regulating cell (59a) and designed to be loaded with electrical energy in order to regulate the temperature of the battery cells (56) arranged in the cell receiving portion (59) surrounding the temperature regulating device (60).

2. The single-unit arrangement structure (58) according to claim 1, wherein, The temperature regulating unit (59a) has six sides (60a), and the temperature regulating device (60) is designed to individually regulate the temperature of one or more of the six sides (60a).

3. The single-unit arrangement structure (58) according to claim 1 or 2, wherein, -The single-unit arrangement structure (58) has a second temperature regulating device (61); - The second temperature regulating device (61) is arranged in the unit receiving part (59) configured as the second temperature regulating unit (59b); and The temperature control device (60) and the second temperature control device (61) are interconnected by a heat pipe (62) for heat exchange.

4. The single-unit arrangement structure (58) according to any one of the preceding claims, wherein, -The single-unit arrangement structure (58) has a second temperature regulating device (61); - The second temperature regulating device (61) is arranged in the unit receiving part (59) configured as the second temperature regulating unit (59b), and - The second temperature regulating device (61) is designed to be loaded with electrical energy in order to regulate the temperature of the battery cells (56) arranged in the cell receiving portion (59) surrounding the temperature regulating device (60).

5. The single-unit arrangement structure (58) according to claim 4, wherein, - The temperature-regulating unit (59a) defines a first set (63) of battery cells (56) that can be regulated by the temperature-regulating device (60), and the second temperature-regulating unit (59b) defines a second set (64) of battery cells (56) that can be regulated by the second temperature-regulating device (61); and - The single-cell arrangement structure (58) is designed to selectively load the temperature control device (60) and / or the second temperature control device (61) with electrical energy from the battery cells (56) of the first set (63) and / or from the battery cells (56) of the second set (64).

6. The single-unit arrangement structure (58) according to any one of the preceding claims, wherein, A phase change material is arranged in the temperature-regulating monomer (59a) and / or between the temperature-regulating monomer (59a) and the adjacent monomer receiving portion (59).

7. An energy storage device (55), said energy storage device being particularly used in motor vehicles (50), wherein, The energy storage device (55) includes a single-unit arrangement structure (58) according to any one of the preceding claims.

8. The energy storage device (55) according to claim 7, wherein, The energy storage device (55) has a controller (54) and a cell arrangement structure (58) according to claim 5 or 6, the controller (54) being designed to selectively load the temperature control device (60) and / or the second temperature control device (61) with electrical energy from the cell (56) of the first set (63) and / or from the cell (56) of the second set (64).

9. The energy storage device (55) according to claim 8, wherein, - The energy storage device (55) has one or more temperature control switches (53c) for selecting one or more of the temperature control devices (60, 61); and / or - The energy storage device (55) has one or more cell selection switches (54d) for selecting one or more sets of the sets (63, 64) of the battery cells (56).

10. A motor vehicle (50), said motor vehicle comprising an energy storage device (55) according to any one of claims 7 to 9.

Citation Information

Patent Citations

  • Means of transport, method and arrangement for an electrochemical energy storage device

    DE102021119070A1

  • Control method and control device for battery

    JP2022048813A

  • Electrochemical energy storage device

    WO2023006725A1