Specification
Title of the invention: Battery module, battery pack and vehicle comprising such battery module
technical field
[One]
The present invention relates to a battery module, a battery pack comprising such a battery module, and a vehicle.
[2]
This application is a priority claim application for Korean Patent Application No. 10-2020-0017876 filed on February 13, 2020, and all contents disclosed in the specification and drawings of the application are incorporated herein by reference.
background
[3]
Secondary batteries that are easy to apply according to product groups and have electrical characteristics such as high energy density are not only portable devices, but also electric vehicles (EVs) or hybrid vehicles (HEVs) driven by an electric drive source. It is universally applied. These secondary batteries are attracting attention as a new energy source for improving eco-friendliness and energy efficiency in that not only the primary advantage of being able to dramatically reduce the use of fossil fuels, but also the fact that no by-products are generated from the use of energy.
[4]
The types of secondary batteries currently widely used include a lithium ion battery, a lithium polymer battery, a nickel cadmium battery, a nickel hydride battery, a nickel zinc battery, and the like. The unit secondary battery cell, that is, the operating voltage of the unit battery cell is about 2.5V ~ 4.5V. Accordingly, when a higher output voltage is required, a plurality of battery cells are connected in series to form a battery pack. In addition, a plurality of battery cells may be connected in parallel to form a battery pack according to the charge/discharge capacity required for the battery pack. Accordingly, the number of battery cells included in the battery pack may be variously set according to a required output voltage or charge/discharge capacity.
[5]
On the other hand, when configuring a battery pack by connecting a plurality of battery cells in series/parallel, a battery module including at least one battery cell is first configured, and other components are added using the at least one battery module. A method of configuring the battery pack is common.
[6]
In the case of a conventional battery module, when exposed to environmental changes such as temperature change, condensation may occur inside the battery module. The water condensed by the dew condensation phenomenon may be filled to a predetermined height inside the battery module. In addition, there is a risk that a short circuit occurs between sensing busbars inside the battery module due to the condensed water caused by the dew condensation.
[7]
Therefore, it is required to find a way to prevent the short circuit of the sensing bus bar when condensation occurs inside the battery module.
DETAILED DESCRIPTION OF THE INVENTION
technical challenge
[8]
Accordingly, an object of the present invention is to provide a battery module capable of preventing a short circuit of a sensing bus bar when dew condensation occurs inside the battery module, a battery pack including the battery module, and a vehicle.
means of solving the problem
[9]
In order to solve the above object, the present invention, as a battery module, a plurality of battery cells; a module case accommodating the plurality of battery cells; and a bus bar assembly provided in the module case and electrically connected to electrode leads of the plurality of battery cells, wherein the bus bar assembly includes a bus bar frame disposed on at least one side of the plurality of battery cells. ; a plurality of lead slots provided in the bus bar frame and penetrating the electrode leads of the plurality of battery cells; a plurality of sensing bus bars disposed opposite to the plurality of lead slots and connected to electrode leads of the plurality of battery cells; and a plurality of short circuit preventing members mounted on at least one end of the plurality of sensing bus bars and surrounding the at least one end of the plurality of sensing bus bars.
[10]
The plurality of short circuit preventing members may be mounted to lower ends of the plurality of sensing bus bars.
[11]
The plurality of short circuit preventing members may be provided with a short circuit preventing groove capable of accommodating a lower end of each sensing bus bar.
[12]
The short-circuit prevention groove may have a shape corresponding to the lower end of each sensing bus bar.
[13]
The short-circuit prevention groove may be provided with an opening at an upper end so that the lower end of each sensing bus bar can be inserted.
[14]
The plurality of short-circuit preventing members may be coated with insulation to surround a lower end of each sensing bus bar.
[15]
The plurality of short circuit preventing members may include an insulating material.
[16]
The plurality of short circuit preventing members may be made of a rubber material.
[17]
And, the present invention, as a battery pack, at least one battery module according to the above-described embodiments; and a pack case for packaging the at least one battery module.
[18]
In addition, the present invention provides a vehicle comprising, as a vehicle, at least one battery pack according to the above-described embodiment.
Effects of the Invention
[19]
According to various embodiments as described above, it is possible to provide a battery module capable of preventing a short circuit of a sensing bus bar when condensation occurs inside the battery module, a battery pack including the battery module, and a vehicle.
Brief description of the drawing
[20]
The following drawings attached to the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention to be described later. should not be construed as being limited only to
[21]
1 is a view for explaining a battery module according to an embodiment of the present invention.
[22]
FIG. 2 is an exploded perspective view of the battery module of FIG. 1 ;
[23]
FIG. 3 is a view for explaining a bus bar assembly of the battery module of FIG. 1 .
[24]
4 and 5 are views for explaining a main part of the bus bar assembly of FIG. 3 .
[25]
6 and 7 are diagrams for explaining prevention of short circuit of the sensing bus bar when dew condensation occurs in the battery module of FIG. 1 .
[26]
8 is a view for explaining a battery pack according to an embodiment of the present invention.
[27]
9 is a view for explaining a vehicle according to an embodiment of the present invention.

Claims
[Claim 1]
A battery module comprising: a plurality of battery cells; a module case accommodating the plurality of battery cells; and a bus bar assembly provided in the module case and electrically connected to electrode leads of the plurality of battery cells, wherein the bus bar assembly includes a bus bar frame disposed on at least one side of the plurality of battery cells. ; a plurality of lead slots provided in the bus bar frame and penetrating the electrode leads of the plurality of battery cells; a plurality of sensing bus bars disposed opposite to the plurality of lead slots and connected to electrode leads of the plurality of battery cells; and a plurality of short circuit preventing members mounted on at least one end of the plurality of sensing bus bars and surrounding the at least one end of the plurality of sensing bus bars.
[Claim 2]
The battery module according to claim 1, wherein the plurality of short circuit preventing members are mounted on lower ends of the plurality of sensing bus bars.
[Claim 3]
The battery module according to claim 2, wherein the plurality of short circuit preventing members are provided with a short circuit preventing groove capable of accommodating a lower end of each sensing bus bar.
[Claim 4]
The battery module according to claim 3, wherein the short-circuit prevention groove has a shape corresponding to a lower end of each sensing bus bar.
[Claim 5]
The battery module according to claim 3, wherein the short-circuit prevention groove has an opening provided at an upper end so that a lower end of each sensing bus bar can be inserted.
[Claim 6]
The battery module according to claim 2, wherein the plurality of short circuit preventing members are coated with insulation to surround a lower end of each sensing bus bar.
[Claim 7]
The battery module according to claim 1, wherein the plurality of short circuit preventing members include an insulating material.
[Claim 8]
The battery module according to claim 7, wherein the plurality of short circuit preventing members are made of a rubber material.
[Claim 9]
at least one battery module according to claim 1; and a pack case for packaging the at least one battery module.
[Claim 10]
A vehicle comprising a; at least one battery pack according to claim 9 .