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Battery pack

A technology for battery packs and battery pack casings, applied in the direction of batteries, battery pack components, secondary batteries, etc., which can solve the problems that it is difficult to fully support a battery module 20 with a large weight, so as to improve swelling, increase energy density, Resists the effect of external impact or external force

Pending Publication Date: 2022-02-01
SK ON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, since the connection between the battery module 20 and the battery pack case 11 is performed only by the fastening structure of the four corners and the adhesion between the lower surface of the battery module 20 and the bottom 12 of the battery pack case 11, Therefore, there is a problem that it is difficult to sufficiently support the battery module 20 having a large weight

Method used

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Embodiment Construction

[0077] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. However, the embodiments of the present invention can be modified in various ways, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. In the drawings, the shapes, dimensions, etc. of components may be exaggerated for clearer description.

[0078] In addition, in this specification, the singular includes the plural unless clearly indicated otherwise in the context, and the same reference numerals refer to the same components or corresponding components throughout the specification.

[0079] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0080] image 3 is a perspective view showing the inside of a battery pack 100 according t...

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Abstract

The invention provides a battery pack for increasing energy density and having excellent heat dissipation performance. The battery pack (100) includes a plurality of cell stack units (210), each stack unit including a stack of a plurality of battery cells (220), a partition wall member (250) disposed between the cell stack units (210) adjacent to each other, and a pack housing (110) accommodating the plurality of cell stack units (210) and a plurality of partition wall members (250). The cell stack unit (210) and the partition wall member (250) are accommodated in the pack housing (110) while side surface of the cell stack unit (210) and a side surface of the partition wall member (250) are in contact with each other, and the partition wall member (250) is fixed to a bottom surface (112) of the pack housing (110).

Description

technical field [0001] The present invention relates to a battery pack mounted with a plurality of battery cells, and more particularly, to a battery pack capable of improving energy density by increasing the number of battery cells accommodated in a predetermined space. Background technique [0002] Unlike primary batteries, secondary batteries have the convenience of being able to be charged and discharged, so they are attracting attention as power sources for various mobile devices and power sources for electric vehicles, etc. For example, a secondary battery using a high-energy-density non-aqueous electrolytic solution has good output, and thus is used for motor driving of an electric vehicle by connecting a plurality of secondary batteries in series. [0003] A battery module applied to an electric vehicle or the like electrically connects a plurality of battery cells to be modularized due to the need for high power and large capacity, and the electric vehicle has a bat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/291H01M50/207H01M50/211H01M50/227H01M50/242H01M50/244H01M50/249H01M50/258H01M50/507H01M10/613H01M10/625H01M10/653H01M10/655
CPCH01M50/291H01M50/207H01M50/211H01M50/227H01M50/249H01M50/244H01M50/258H01M50/242H01M50/507H01M10/613H01M10/625H01M10/655H01M10/653H01M2220/20H01M10/647H01M10/6551H01M10/6556Y02E60/10H01M50/20H01M50/209
Inventor 崔永善全海龙崔良奎崔恩精
Owner SK ON CO LTD
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