KR-102965190-B1 - BATTERY PACK AND DEVICE INCLUDING THE SAME

Abstract

A battery pack according to one embodiment of the present invention comprises: a lower pack housing having a plurality of module regions; a thermally conductive resin layer formed in the module regions; and a cell block mounted on each of the plurality of module regions above the thermally conductive resin layer, wherein the cell block comprises a battery cell stack having a plurality of battery cells stacked thereon; and an insulating member surrounding the battery cell stack.

Inventors

• 박수빈
• 성준엽
• 박원경

Assignees

• 주식회사 엘지에너지솔루션

Dates

Publication Date

20260513

Application Date

20200622

Claims (10)

1. Lower pack housing having multiple module areas; A thermally conductive resin layer formed in the above module area; and It includes cell blocks mounted in each of the plurality of module regions on the upper side of the thermally conductive resin layer, and The above cell block is, A battery cell stack having a plurality of battery cells stacked thereon; and It includes an insulating member surrounding the above-mentioned battery cell stack, and Side plates are located between both sides of the battery cell stack and the insulating member, and The upper and lower surfaces of the above battery cell stack are in contact with the insulating member, and A partition is formed between the above module areas to partition the above module areas, and A modular battery pack having a bulkhead formed to face the side of the cell block located in the module area and protecting the cell block from external impact.
2. In paragraph 1, A battery pack further comprising an upper pack housing covering the upper part of the cell block.
3. In paragraph 1, The above insulating member is a battery pack that covers the upper, lower, left, and right sides of the battery cell stack, excluding the portion where the electrode leads are formed in the battery cell stack.
4. delete
5. In Paragraph 1, The above side plate is a battery pack formed of an elastic member.
6. In paragraph 5, The above side plate is a battery pack formed of rubber.
7. In paragraph 1, The above side plate is a battery pack formed by injection molding.
8. In Paragraph 1, The above insulating member is a battery pack formed from a heat shrinkage tube.
9. In paragraph 1, The above insulating member is a battery pack formed of insulating tape.
10. A device including a battery pack according to paragraph 1.

Description

Battery pack and device including the same The present invention relates to a battery pack and a device including the same, and more specifically, to a battery pack capable of securing insulation performance and a device including the same. Rechargeable batteries are attracting significant attention as an energy source for various product categories, including mobile devices and electric vehicles. As a promising energy resource capable of replacing conventional products that use fossil fuels, these batteries are gaining prominence as an eco-friendly energy source because they do not generate byproducts during use. Recently, with the increasing need for high-capacity secondary battery structures, including their utilization as energy storage sources, there is a growing demand for battery packs with a multi-module structure that aggregates battery modules in which multiple secondary batteries are connected in series or parallel. Meanwhile, when configuring a battery pack by connecting multiple battery cells in series or parallel, it is common practice to configure a battery module consisting of at least one battery cell and to configure the battery pack by adding other components using this at least one battery module. However, when constructing a battery pack using battery modules, there is a problem in that the overall manufacturing process becomes complex because a two-step assembly process is required: manufacturing battery cells as battery module units and then housing the battery modules manufactured as unit units into a battery pack. Furthermore, insulation performance is an essential requirement for the stability of a battery pack structure; therefore, an additional step is required during the battery module manufacturing process to insert the insulation structure inside the module. At this stage, the assembly process becomes significantly complex as the insulation structure is mounted inside the module and then mounted back into the battery pack. Moreover, as the insulation structure is formed between complex internal structures, interference may occur, making it difficult to secure basic insulation performance. FIG. 1 is a drawing showing a battery pack according to one embodiment of the present invention. Figure 2 is a diagram showing the cell block of Figure 1. Figure 3 is an exploded perspective view showing the cell block of Figure 2 disassembled. Figure 4 is a cross-sectional view showing part AA of Figure 2. FIG. 5 is an exploded perspective view showing a battery module including a U-shaped frame as a comparative example. FIG. 6 is an exploded perspective view showing a battery module including a module frame formed on the upper, lower, left, and right sides as a comparative example. The embodiments described below are presented as examples to aid in understanding the invention, and it should be understood that the invention may be implemented with various modifications different from the embodiments described herein. However, in describing the invention, detailed descriptions and specific illustrations of related known functions or components are omitted if it is determined that such detailed descriptions or specific illustrations might unnecessarily obscure the essence of the invention. Furthermore, the attached drawings are not drawn to actual scale to aid in understanding the invention, and the dimensions of some components may be exaggerated. The first and second terms used in this specification may be used to describe various components, but the components should not be limited by the terms. The terms are used solely for the purpose of distinguishing one component from another. Furthermore, the terms used in this specification are used merely to describe specific embodiments and are not intended to limit the scope of rights. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, terms such as “comprising,” “consisting of,” or “consisting of” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Hereinafter, the overall configuration of a battery pack according to an embodiment of the present invention will be described with reference to FIG. 1. FIG. 1 is a drawing showing a battery pack according to one embodiment of the present invention. Referring to FIG. 1, a battery pack according to one embodiment of the present invention comprises a lower pack housing (100) having a plurality of module regions, a thermally conductive resin layer (300) applied to the module regions, and a cell block (400) mounted on each of the plurality of module regions above the thermally conductive resin layer (300). Referring to FIG. 3, the cell block (400) comprises a battery cell st