KR-20260067843-A - BATTERY MODULE AND BATTERY SYSTEM

Abstract

The present disclosure provides a battery module. The battery module comprises a plurality of cells, a plurality of sensors for measuring at least one of the voltage or temperature of at least some of the plurality of cells, a control unit connected to the plurality of sensors through a plurality of cables, a wireless communication module connected to the control unit and communicating with an external device, and an antenna connected to the wireless communication module, wherein the plurality of cables and the antenna may be arranged adjacently.

Inventors

• 홍상진

Assignees

• 삼성에스디아이 주식회사

Dates

Publication Date

20260513

Application Date

20241106

Claims (20)

1. Multiple cells; A plurality of sensors that measure at least one of the voltage or temperature of at least some of the plurality of cells; The plurality of sensors and a control unit through a plurality of cables; A wireless communication module connected to the above-mentioned control unit and communicating with an external device; and Antenna connected to the above wireless communication module Includes, A battery module having the plurality of cables and the antenna arranged adjacently.
2. In paragraph 1, A battery module in which the plurality of cables and the antenna are respectively connected to the control unit and the wireless communication module using a single connector.
3. In paragraph 2, A battery module in which the number of cables decreases as they move further away from the connector.
4. In paragraph 2, A battery module in which the area of the plurality of cables decreases as they move further away from the connector.
5. In paragraph 4, A battery module in which the area of the antenna increases by the area of the plurality of cables that decrease as they move further away from the connector.
6. In paragraph 2, The above antenna comprises a first sub-antenna, one end of which is connected to the connector, and a second sub-antenna, the other end of which is connected to the first sub-antenna, in a battery module.
7. In paragraph 6, A battery module in which the area of the second sub-antenna is larger than the area of the first sub-antenna.
8. In paragraph 6, A battery module in which each of the first sub-antenna and the second sub-antenna is in the form of a plate.
9. In paragraph 2, The above antenna comprises a first branch extending from the connector, a second branch branching from a first branching point of the first branch, and a third branch branching from a second branching point of the first branch, in a battery module.
10. In Paragraph 9, The distance between the second branch point and the connector is longer than the distance between the first branch point and the connector, and A battery module in which the number of the third branch is greater than the number of the second branch.
11. In paragraph 1, A battery module in which the plurality of cables and the antenna are electrically insulated from each other.
12. In paragraph 2, The above antenna is a battery module whose area increases as it moves further away from the connector.
13. In paragraph 1, The above plurality of cells are aligned in one direction, and A battery module in which the antenna and the plurality of cables are arranged to extend in a direction parallel to the aligned plurality of cells.
14. In Paragraph 11, Top plate covering the above plurality of cells Includes more, A battery module comprising a plurality of cables and an antenna disposed between the plurality of cells and the top plate.
15. A battery module comprising a plurality of cells; and A battery management system (BMS) that manages the above battery module; Includes, The above battery module is, A plurality of sensors that measure at least one of the voltage or temperature of at least some of the plurality of cells; A control unit connected to the plurality of sensors through a plurality of cables; A wireless communication module connected to the above-mentioned control unit and communicating with an external device; and Antenna connected to the above wireless communication module Includes, The above plurality of cables and the antenna are arranged adjacently, A battery system in which the above battery module communicates with the battery management system using the above wireless communication module.
16. In paragraph 15, A battery system in which the plurality of cables and the antenna are each connected to the control unit and the wireless communication module using a single connector.
17. In Paragraph 16, A battery system in which the number of cables decreases as they move further away from the connector.
18. In Paragraph 16, A battery system in which the area of the plurality of cables decreases as they move further away from the connector.
19. In Paragraph 18, A battery system in which the area of the antenna increases by the area of the plurality of cables that decrease as they move further away from the connector.
20. In paragraph 15, The above plurality of cells are aligned in one direction, and A battery system in which the antenna and the plurality of cables are arranged to extend in a direction parallel to the aligned plurality of cells.

Description

Battery Module and Battery System The present disclosure relates to battery modules and battery systems. Unlike primary batteries, which cannot be recharged, secondary batteries are batteries capable of both charging and discharging. Low-capacity secondary batteries are used in small portable electronic devices such as smartphones, feature phones, laptop computers, digital cameras, and camcorders, while high-capacity secondary batteries are widely used as power sources for motor drive systems and power storage batteries in hybrid and electric vehicles. Such secondary batteries include an electrode assembly consisting of a positive electrode and a negative electrode, a case housing the assembly, and electrode terminals connected to the electrode assembly. A battery module may include multiple secondary batteries (or cells) connected in series and/or parallel. For the efficient management of such battery modules, a Battery Management System (BMS) may transmit and receive information to and from the battery modules using wired communication. However, using wired communication presents the problem that the system becomes complex and spatial constraints arise due to the cables used for the communication. The information described above disclosed in the background technology of this invention is intended only to enhance understanding of the background of the present invention and may therefore include information that does not constitute prior art. The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description of the invention provided below; therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings. FIG. 1 is a drawing showing an example of a battery cell according to one embodiment of the present disclosure. FIG. 2 is a cross-sectional view showing an example of a battery cell according to one embodiment of the present disclosure. FIG. 3 is a drawing showing an example of a disassembled part of a battery module according to one embodiment of the present disclosure. FIG. 4 is a drawing showing an example of a circuit board according to one embodiment of the present disclosure. FIG. 5 is a drawing showing an example of a circuit board according to one embodiment of the present disclosure. FIG. 6 is a drawing showing an example of a battery management module according to one embodiment of the present disclosure. FIG. 7 is a plan view showing an example of a part of a battery module according to one embodiment of the present disclosure. FIG. 8 is a drawing illustrating an example of a communication method of a battery system according to one embodiment of the present disclosure. Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings. Instead, based on the principle that the inventor can appropriately define the concepts of terms to best describe their invention, they should be interpreted in a meaning and concept consistent with the technical spirit of the present invention. Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely some of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention. It should be understood that various equivalents and modifications capable of replacing them may exist at the time of filing this application. Additionally, to aid in understanding the invention, the attached drawings are not drawn to actual scale, and the dimensions of some components may be exaggerated. Furthermore, the same reference numerals may be assigned to identical components in different embodiments. Additionally, as used herein, “comprise, include” and/or “comprising, including” specify the presence of the mentioned features, numbers, steps, actions, parts, elements, and/or groups thereof, and do not exclude the presence or addition of one or more other features, numbers, actions, parts, elements, and/or groups. Additionally, to aid in understanding the invention, the attached drawings are not drawn to actual scale, and the dimensions of some components may be exaggerated. Furthermore, the same reference numerals may be assigned to identical components in different embodiments. The statement that two subjects of comparison are 'identical' means that they are 'substantially identical'. Therefore, substantial identity may include deviations considered low in the industry, for example, deviations within 5%. Additionally, the statement that a parameter is uniform in a given area may mean that it is uniform from an average per