Patent Application
20170077567
This application is based on and claims the benefit of priority to Korean Patent Application No. 10-2015-0129892, filed on Sep. 14, 2015 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.
The present disclosure relates to a battery device, and more particularly, to a battery device that improves reliability related to humidity by securing sealing performance of an indirect cooling battery module unit, and securing venting performance accordingly.
Generally, since reliability and stability of a battery system act as the important factors that determine marketability of an electric vehicle, the electric vehicle should maintain an appropriate temperature range of the battery system, (e.g., about 35° C. to 40° C.) to prevent degradation in performance of a battery by various changes in the exterior temperature. For example, a heat control system for a pouch cell module that maintains the appropriate temperature of the battery in a low temperature environment while having excellent heat dissipation performance in a general climatic condition may be used.
In particular, the battery for the electric vehicle, due to heat generated by high speed charging, high output, the number of repeatedly charging times, and the like, a local temperature difference between battery cells occurs, or a thermal runaway phenomenon hindering efficiency and stability of the battery occurs, known to be caused by lack of capability that emits or diffuses heat to the exterior compared to heat generated from the interior of the battery. Furthermore, according to the related art, as illustrated in
The above information disclosed in this section is merely for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
The present disclosure provides a battery device capable of improving reliability related to humidity by securing sealing performance of an indirect cooling battery module unit, and securing venting performance accordingly.
In one aspect, an exemplary embodiment of the present disclosure, a battery device may include a battery module having a plurality of battery cells and a plurality of plates disposed between the plurality of battery cells to perform a heat exchange, a battery housing that may accommodate the battery module and have opened apertures through which the plurality of plates protrude to the exterior, a heat sink having have a plurality of discharge grooves formed therein to fixedly insert the plurality of plates into the plurality of discharge grooves, seal the battery housing, and discharge heat of the plates.
The battery device may further include a housing cover that seals the battery housing, wherein a bottom surface of the battery housing may be included with an opening through which the battery module may be inserted. The housing cover may be fused with the housing to seal the opening. The battery module may further include heat controlling plates disposed between the battery cells to minimize thermal resistance upon contact with the battery cells. The cell covers may be provided to both ends of the battery module to protect the battery module. The housing cover may include a temperature sensor configured to measure an internal temperature of the battery housing. The battery housing may include terminals that maintain an airtight seal within an inside of the battery housing. The battery housing may be mounted with a venting component through which gas may be discharged.
According to another exemplary embodiment, a battery device may include a battery module having a plurality of plates disposed between a plurality of battery cells and formed of an aluminum material that allows a heat transfer of the battery cells, heat controlling plates disposed between the battery cells to minimize thermal resistance upon contact with the battery cells, and cell covers provided to both ends of the plurality of battery cells to protect the battery cells. Further, a battery housing may form an opening in a bottom surface thereof to insert the battery module into the opening, fuse a housing cover to the opening with laser to seal a lower portion of the battery housing, and form a plurality of apertures in a top surface thereof to allow the plurality of plates protrude to the exterior through the plurality of apertures. Additionally a heat sink may be disposed on the top surface of the battery housing and may have a plurality of discharge grooves formed therein to fixedly insert the plurality of plates into the plurality of discharge grooves, thereby discharging heat of the plates (e.g., at the same time) while sealing an upper portion of the battery housing.
The above and other objects, features and advantages of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings:
Exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.
It is understood that the tem) “vehicle” or “vehicular” or other similar tem) as used herein is inclusive of motor vehicle in general such as passenger automobiles including sports utility vehicles (SUV), buses, trucks, various commercial vehicles, watercraft including a variety of boats, ships, aircraft, and the like and includes hybrid vehicles, electric vehicles, combustion, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (e.g. fuels derived from resources other than petroleum).
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term “and/of” includes any and all combinations of one or more of the associated listed items. For example, in order to make the description of the present invention clear, unrelated parts are not shown and, the thicknesses of layers and regions are exaggerated for clarity. Further, when it is stated that a layer is “on” another layer or substrate, the layer may be directly on another layer or substrate or a third layer may be disposed therebetween.
A battery device according to an exemplary embodiment of the present disclosure may include a battery module 100, a battery housing 200, and a heat sink 300, as illustrated in
As illustrated in
As illustrated in
As illustrated in
In other words, according to the present disclosure, as illustrated in
As illustrated in
In particular, the battery device according to the present disclosure may include the battery module 100 having include the plurality of plates 120 disposed between the plurality of battery cells 110 and formed of the aluminum material that allows the heat transfer of the battery cells 110 to be performed. For example, the heat controlling plates 130 disposed between the battery cells 110 may minimize thermal resistance upon contact with the battery cells 110. The cell covers 140 may be provided to both ends of the plurality of battery cells 110 to protect the battery cells 110. The battery housing 200 may form the opening in the bottom surface thereof to insert the battery module 100 through the opening. Further the housing cover 220 may be fused to the opening with laser to seal the lower portion of the battery housing 200, and may form the plurality of fixing apertures 210 in the top surface thereof and the plurality of plates 120 may protrude to the exterior through the plurality of apertures 210.
The heat sink 300 may be disposed on the top surface of the battery housing 200 and may have the plurality of discharge grooves 310 formed therein to fixedly insert the plurality of plates 120 into the plurality of discharge grooves 310. For example, the heat of the plates 120 may be discharged simultaneously (e.g., at the same time) while sealing an upper portion of the battery housing 200. Accordingly, a sealing structure of the battery module 100 may reduce an occurrence of humidity to improve robustness and stability. The reliability of a product, and volume energy density and mass energy density may be improved by the indirect cooling. Further, a gas discharge venting may be performed in a unit of the battery module 100, thereby increasing marketability.
As described above, according to the exemplary embodiments of the present disclosure, the sealing structure of the battery module may reduce the occurrence of humidity to improve robustness and stability, thereby increasing the reliability of the product. Further a volume energy density and mass energy density may be improved by the indirect cooling. The gas discharge venting may be performed in the unit of the battery module, to increase marketability.
Hereinabove, although the present disclosure has been described with reference to exemplary embodiments and the accompanying drawings, the present disclosure is not limited thereto, but may be variously modified and altered by those skilled in the art to which the present disclosure pertains without departing from the spirit and scope of the present disclosure claimed in the following claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2015-0129892 | Sep 2015 | KR | national |
