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KR-20260063024-A - BATTERY WITH HEATSINK, AND METHOD FOR MANAGING THE TEMPERATURE OF BATTERY CELLS USING THE HEATSINK

KR20260063024AKR 20260063024 AKR20260063024 AKR 20260063024AKR-20260063024-A

Abstract

A battery including a heat sink according to one embodiment of the present application comprises: a plurality of heat conductive plates disposed between each of a plurality of battery cells; a main heat sink coupled to each of the plurality of heat conductive plates; a battery management system (BMS) integrally coupled to the main heat sink and controlling the plurality of battery cells; a case including a balancer for balancing the plurality of battery cells and at least one fan for cooling the main heat sink; and at least one sensor for sensing the temperature of the plurality of battery cells. The battery management system comprises a communication unit for transmitting and receiving data with an external device, a memory, and a processor, and the processor may control at least some of the balancer or the fan based on an external temperature and the temperature of the plurality of battery cells. According to one embodiment of the present invention, the cell temperature of a battery pack can be managed by preserving and compensating the temperature between battery cells.

Inventors

  • 정승용

Assignees

  • 주식회사 주원

Dates

Publication Date
20260507
Application Date
20241030

Claims (8)

  1. Multiple heat conduction plates positioned between each of the multiple battery cells; A main heat sink coupled to each of the plurality of heat conduction plates above; A battery management system (BMS) that is integrally combined with the main heat sink and controls the plurality of battery cells; A balancer for balancing the plurality of battery cells above; A case including at least one fan for cooling the main heat sink; and It includes at least one sensor that senses the temperature of the plurality of battery cells; and The above battery management system is, A communication unit that transmits and receives data with an external device; Memory; and Includes a processor, The processor controls at least some of the balancer or fan based on the external temperature and the temperatures of the plurality of battery cells. Battery including a main heat sink.
  2. In paragraph 1, The above main heat sink is characterized by having a plurality of holes formed therein so that each of the plurality of battery cells can be electrically connected to the battery management system. Battery including a main heat sink.
  3. In paragraph 2, The first battery cell is electrically connected to the battery management system through the first hole, and The second battery cell is electrically connected to the battery management system through the second hole. Battery including a main heat sink.
  4. In paragraph 1, A balancer for balancing the plurality of battery cells described above is, An active balancer that provides power from a battery cell reaching a preset voltage value among the plurality of battery cells to another battery cell; and A passive balancer comprising: consuming power from a battery cell that reaches a preset voltage value among the plurality of battery cells; Battery including a main heat sink.
  5. In paragraph 4, The above processor is, If the above external temperature is below a preset temperature value, cell balancing is performed using the above passive balancer, and If the above external temperature exceeds a preset temperature value, cell balancing is performed using the above active balancer. Battery including a main heat sink.
  6. In paragraph 1, The above processor is, Controlling the operation of the at least one fan when the temperature of the plurality of battery cells sensed through the at least one exceeds a preset temperature value. Battery including a main heat sink.
  7. In paragraph 1, The above battery is characterized as being a lithium iron phosphate battery, Battery including a main heat sink.
  8. In a method for managing the cell temperature of a battery pack using a heat sink, The battery management system controls at least some of the balancer or fans based on the external temperature and the temperatures of a plurality of battery cells; and The above battery management system is integrated with the main heat sink, and The above main heat sink is combined with each of a plurality of heat conduction plates arranged between a plurality of battery cells, Method for managing cell temperature of a battery pack.

Description

Battery including a heat sink and method for managing the cell temperature of a battery pack using the heat sink The present application relates to a battery including a heat sink and a method for managing the cell temperature of a battery pack using the heat sink. This research is conducted under the '2024 SW Convergence Cluster Project 2.0' SW Convergence Product Commercialization Support Program, supported by Pohang Technopark and the Gyeongbuk ICT Convergence Industry Promotion Association from June 2024 to November 2024 [RFP-2021-06]. Lithium-based batteries are being used to replace conventional lead-acid batteries. However, lithium-based batteries are sensitive to temperature, which poses a problem as their expected lifespan and storage capacity are significantly affected by temperature. Despite the problem of being sensitive to temperature, lithium-based (lithium iron phosphate) batteries are widely used in vehicles because they are optimal for starting, lighting, and ignition (SLI) systems. Therefore, it is important to manage the batteries so that they operate at an efficient temperature. For example, when the external temperature is low, it is necessary to raise the temperature of the environment in which the battery operates, and when the external temperature is high, it is necessary to lower the temperature of the environment in which the battery operates. FIG. 1 is a side view of a part of a battery according to one embodiment of the present application. FIG. 2 is a perspective view of a part of a battery according to one embodiment of the present application. FIG. 3 is a perspective view of a part of a battery according to one embodiment of the present application. FIG. 4 is a perspective view of a battery according to one embodiment of the present application. FIG. 5 is a block diagram briefly illustrating the configuration of a battery management system according to one embodiment of the present application. FIG. 6 is a flowchart illustrating a method for managing the cell temperature of another battery pack in one embodiment of the present application. The aforementioned objectives, features, and advantages of the present application will become more apparent from the following detailed description in conjunction with the accompanying drawings. However, as the present application is subject to various modifications and may have various embodiments, specific embodiments are illustrated in the drawings and described in detail below. Throughout the specification, identical reference numbers generally represent identical components. Additionally, components with identical functions within the same scope of concept appearing in the drawings of each embodiment are described using the same reference numeral, and redundant descriptions thereof are omitted. If it is determined that a detailed description of known functions or configurations related to this application could unnecessarily obscure the essence of this application, such detailed description is omitted. Furthermore, numbers used in the description of this specification (e.g., First, Second, etc.) are merely identifiers to distinguish one component from another. Furthermore, the suffixes "module" and "part" for components used in the following embodiments are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently possess distinct meanings or roles. In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise. In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added. In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily depicted for convenience of explanation, and the present invention is not necessarily limited to what is illustrated. Where an embodiment can be implemented differently, the order of a particular process may be performed differently from the order described. For example, two processes described consecutively may be performed substantially simultaneously or proceed in the reverse order of the description. In the following embodiments, when components are described as being connected, the case includes not only instances where the components are directly connected but also instances where components are indirectly connected by interposing them in between. For example, when it is stated in this specification that components, etc. are electrically connected, it includes not only cases where the components, etc. are directly electrically connected, but also cases where components, etc. are interposed in between and are indirectly electrically connected. In the following description, terms related to d