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EP-4738532-A1 - BATTERY MODULE AND ENERGY STORAGE SYSTEM

EP4738532A1EP 4738532 A1EP4738532 A1EP 4738532A1EP-4738532-A1

Abstract

A battery module (1000), including a plurality of secondary batteries (100), and a housing (300) accommodating the plurality of secondary batteries, wherein the housing includes a first cooling plate (310) supporting lower portions of the plurality of secondary batteries, and one or more second cooling plates (320) connected to the first cooling plate, the one or more second cooling plates surrounding at least portions of side surfaces of the plurality of secondary batteries.

Inventors

  • PARK, JONG HO

Assignees

  • SAMSUNG SDI CO., LTD.

Dates

Publication Date
20260506
Application Date
20250929

Claims (13)

  1. A battery module (1000), comprising: a plurality of secondary batteries (100); and a housing (300) accommodating the plurality of secondary batteries (100), wherein the housing includes: a first cooling plate (310) supporting lower portions of the plurality of secondary batteries; and one or more second cooling plates (320) connected to the first cooling plate, the one or more second cooling plates surrounding at least portions of side surfaces of the plurality of secondary batteries.
  2. The battery module as claimed in claim 1, wherein at least one of the first cooling plate (310) and the one or more second cooling plates (320) includes a cooling flow path (340) configured for circulation of a coolant.
  3. The battery module as claimed in claim 1 or claim 2, wherein at least one of the first cooling plate (310) and the one or more second cooling plates (320) includes one or more cooling holes configured for cooling the battery module.
  4. The battery module as claimed in any one of claims 1 to 3, wherein the one or more second cooling plates (320) includes a first side surface plate (321) and a second side surface plate (322) facing the first side surface plate (321).
  5. The battery module as claimed in claim 4, further comprising an end plate (330) including a first end plate (331) that connects one side of the first side surface plate (321) and one side of the second side surface plate (322), and a second end plate (332) that connects another side of the first side surface plate (321) and another side of the second side surface plate (322).
  6. The battery module as claimed in claim 4 or claim 5, wherein the second cooling plate (320) includes: a third side surface plate (323) connecting one side of the first side surface plate (321) and one side of the second side surface plate (322); and a fourth side surface plate (324) connecting another side of the first side surface plate (321) and another side of the second side surface plate (322).
  7. The battery module as claimed in any one of claims 1 to 6, further comprising two or more battery laminates (200) of the plurality of secondary batteries (100) stacked in a first direction, wherein the two or more battery laminates (200) are spaced apart from each other at a predetermined interval (d) in a second direction.
  8. The battery module as claimed in claim 7, wherein the first cooling plate (310) further includes a first reinforcement member (410) aligned with the predetermined interval (d).
  9. The battery module as claimed in claim 7, wherein the first cooling plate (310) has a thickness (h2) of a region corresponding to the predetermined interval (d) that is thicker than that (h1) of a region corresponding to the battery laminate (400).
  10. The battery module as claimed in any one of claims 1 to 9, wherein the first cooling plate (310) further includes a second reinforcement member (420) in a region connected to the second cooling plate (320).
  11. The battery module as claimed in any one of claims 1 to 10, wherein the first cooling plate (310) has a thickness (h3) of a region connected to the second cooling plate (320) that is thicker than that (h1) of a region corresponding to the plurality of secondary batteries (100).
  12. The battery module as claimed in any one of claims 1 to 11, further comprising a reinforcement plate (430) supporting a lower portion of the first cooling plate (310).
  13. An energy storage system (2000), comprising: a plurality of battery modules (1000) according to any one of claims 1 to 12; and a rack (2100, 2200) accommodating the plurality of battery modules (1000).

Description

TECHNICAL FIELD The present disclosure relates to a battery module and an energy storage system. TECHNICAL BACKGROUND Secondary batteries are batteries that can be charged and discharged, unlike primary batteries that cannot be recharged. Low-capacity secondary batteries are used in small portable electronic devices such as smartphones, feature phones, laptop computers, digital cameras, and camcorders, and high-capacity batteries are widely used as motor driving power sources, power storage batteries, and the like in hybrid vehicles, electric vehicles, and the like. The secondary battery includes an electrode including a positive electrode and/or a negative electrode, an electrode assembly including the electrode, a case which accommodates the electrode assembly, and an electrode terminal connected to the electrode assembly. As the demand for secondary batteries increases, there are increasing cases where it is used in the form of a module including a plurality of secondary batteries rather than a single secondary battery. A battery module generally includes a plurality of secondary batteries. The battery module allows the plurality of secondary batteries to be electrically connected and used. The above-described information disclosed in the background technology of the present disclosure is only for improving understanding of the background of the present disclosure, and accordingly, may include information that does not constitute the related art. SUMMARY The invention relates to a battery module and to an energy storage system as defined in the appended claims. Embodiments include a battery module, including a plurality of secondary batteries, and a housing accommodating the plurality of secondary batteries, wherein the housing includes a first cooling plate supporting lower portions of the plurality of secondary batteries, and one or more second cooling plates connected to the first cooling plate, the one or more second cooling plates surrounding at least portions of side surfaces of the plurality of secondary batteries. At least one of the first cooling plate and the one or more second cooling plates may include a cooling flow path through which a coolant circulates. At least one of the first cooling plate and the one or more second cooling plates may include one or more cooling holes that cool the battery module. The one or more second cooling plates may include a first side surface plate and a second side surface plate facing the first side surface plate. The battery module may further include an end plate including a first end plate that connects one side of the first side surface plate and one side of the second side surface plate, and a second end plate that connects another side of the first side surface plate and another side of the second side surface plate. The second cooling plate may include a third side surface plate connecting one side of the first side surface plate and one side of the second side surface plate, and a fourth side surface plate connecting another side of the first side surface plate and another side of the second side surface plate. The battery module may further include two or more battery laminates of the plurality of secondary batteries stacked in a first direction, wherein the two or more battery laminates are spaced apart from each other at a predetermined interval in a second direction. The first cooling plate may further include a first reinforcement member provided in response to (i.e, aligned with) the predetermined interval. The first cooling plate may have a thickness of a region corresponding to the predetermined interval that is thicker than that of a region corresponding to the battery laminate. The first cooling plate may further include a second reinforcement member in a region connected to the second cooling plate. The first cooling plate may have a thickness of a region connected to the second cooling plate that is thicker than that of a region corresponding to the plurality of secondary batteries. The battery module may further include a reinforcement plate supporting a lower portion of the first cooling plate. An energy storage system, including a plurality of the battery module, and a rack accommodating the plurality of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS Features will become apparent to those of ordinary skill in the art by describing in detail exemplary embodiments with reference to the attached drawings, in which: FIG. 1 is a perspective view of a battery module according to an embodiment of the present disclosure;FIG. 2 is a perspective view of a secondary battery according to an embodiment of the present disclosure;FIG. 3 is a cross-sectional view of the secondary battery according to an embodiment of the present disclosure;FIG. 4 is a perspective view of the secondary battery according to an embodiment of the present disclosure;FIG. 5 is a cross-sectional view of the battery module according to an embodiment of the present discl