Battery module, battery pack containing the same, and vehicle

Abstract

A battery module according to one aspect of the present invention includes a module frame having an internal space in which a plurality of battery cells are accommodated and an opening communicating with the internal space; an insulating cover having a support base on which terminals electrically connected to the plurality of battery cells are disposed and supported, the insulating cover primarily covering the opening; an end plate having a window exposing the support base to the outside and secondarily covering the opening covered by the insulating cover; and a blocking structure configured to cover the support base exposed through the window and block an electrical short circuit between the terminals disposed on the support base and the end plate.

Claims

1. A module frame having an internal space for housing multiple battery cells and an opening communicating with the internal space, It has a support base on which multiple battery cells and electrically connected terminals are arranged and supported, and an insulating cover that temporarily covers the opening, The end plate has a window that exposes the support base to the outside and secondarily covers the opening which is covered by the insulating cover, A shielding structure configured to cover the support base exposed through the window and to interrupt an electrical short circuit between the terminal and the end plate located on the support base, Includes, The aforementioned blocking structure is A coupling portion that is connected to the end plate, The aforementioned joint is supported, and the cover portion covers the support base, Includes, The aforementioned blocking structure is The present invention further includes at least one blocking pin configured to block contact between the terminal and the end plate when the insulating cover melts, by contacting and supporting the terminal. The battery module wherein the shielding structure is made of a material having a higher melting point than the insulating cover.

2. The support base of the insulating cover is A mounting section having a mounting surface on which the terminal is placed, A partition wall extends from the mounting portion to the edge of the window, separating the terminal from the edge of the window, The battery module according to claim 1, including the following:

3. The aforementioned partition wall portion is A first partition wall extends downward from the lower end of the mounting portion and isolates the terminal from the edge of the window located below the mounting portion, A second partition wall extends upward from the edge of the mounting portion and isolates the terminal from other edges of the window located to the side or above the mounting portion described above, The battery module according to claim 2, including the following:

4. The battery module according to claim 1, wherein the insulating cover is made of a material that has fire resistance in addition to electrical insulation.

5. The battery module according to claim 4, wherein the insulating cover is made of a material comprising one or more of the following: polyimide, aromatic polyamide, polyphenylene sulfide, polyether ether ketone, and fluoropolymer.

6. The battery module according to claim 1, wherein at least one of the shut-off pins is configured to protrude from the cover toward the support base and to contact the terminal located on the support base.

7. A module frame having an internal space for housing a plurality of battery cells and an opening communicating with the internal space, It has a support base on which multiple battery cells and electrically connected terminals are arranged and supported, and an insulating cover that temporarily covers the opening, The end plate has a window that exposes the support base to the outside and secondarily covers the opening which is covered by the insulating cover, A shielding structure configured to cover the support base exposed through the window and to interrupt an electrical short circuit between the terminal and the end plate located on the support base, Includes, The aforementioned blocking structure is A coupling portion that is connected to the end plate, The aforementioned joint is supported, and the cover portion covers the support base, Includes, The aforementioned blocking structure is The present invention further includes at least one blocking pin configured to block contact between the terminal and the end plate when the insulating cover melts, by contacting and supporting the terminal. The aforementioned support base is A battery module comprising at least one coupling groove into which at least one of the aforementioned disconnection pins is inserted and coupled.

8. The battery module according to claim 1, further comprising at least one fixing screw for fixing the coupling portion to the end plate.

9. The battery module according to claim 1, wherein the shielding structure is made of a material that has fire resistance in addition to electrical insulation.

10. The battery module according to claim 9, wherein the blocking structure is made of a material including silicon or ceramic.

11. A battery pack comprising a battery module according to any one of claims 1 to 10.

12. A vehicle comprising a battery module according to any one of claims 1 to 10.

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