Battery modules and battery packs

Abstract

Invention details;

Claims

OCR10KL(13 / 01 / 2025)1. Battery module, which comprises: cells; and heat dissipation and depressurization components (1) which comprise liquid-cooled baffles (11) and exhaust and depressurization components (12); where the exhaust and depressurization components (12) are provided with depressurization channels (13) and discharge channels (14) in contact with the depressurization channels (13); liquid-cooled baffles (11) are provided on one side of the depressurization channels (13), and liquid-cooled baffles (11) are vertically connected to the exhaust and depressurization components (12); the thickness dimension H1 of the two supporting side walls (131) of both depressurization channels (13) is between 5 mm and 10 mm; and the cell's explosion-proof valve is provided in contact with the discharge channels (14); and the cell exchanges heat with the liquid-cooled baffles (11).2.Battery module as requested in Requisition 1, whereby the exhaust and depressurization section (12) is provided with two depressurization channels (13); a supporting baffle (15) is provided between the two depressurization channels (13); the thickness dimension H2 of the supporting baffle (15) is between 3 mm and 6 mm; a liquid-cooled baffle (11) is provided between the two depressurization channels (13).

3. Battery module as requested in Requisition 1 or 2, whereby the liquid-cooled baffle (11) is provided with heat exchange plates (111) and more than one heat exchange channel (112); whereby the direction in which the heat exchange plates (111) are perpendicular to the exhaust and depressurization section (12) is defined as the width direction W of the heat exchange plates (111), and more than one heat exchange channel (112) is provided along the width direction W.4.Battery module as requested in claim 3, where one side of the liquid-cooled baffle (11) adjacent to the exhaust and depressurization section (12) is provided with an extension connection (16); where the liquid-cooled baffle (11) is connected to the exhaust and depressurization section (12) via the extension connection (16).

5. Battery module as requested in claim 4, where the liquid-cooled baffle (11) extends in the extension direction of the heat exchange channel (112) to form the extension connection (16).6.The battery module as requested in claim 3, whereby the heat dissipation and pressure reduction component (1) is further incorporated with a liquid-cooled connector (17) provided with a liquid-cooled internal cavity (171), and an external pipe element (18) provided on the liquid-cooled connector (17); whereby the liquid-cooled connector (17) is detachably connected to a liquid-cooled baffle (11), and the heat exchange channel (112) is in connection.

7. Battery module according to claim 6, where a flow guide plate (172) is provided in the liquid-cooled internal cavity (171); where more than one number of heat exchange channels (112) are formed into a snake-like tube by the use of the flow guide plate (172).

8. Battery module according to claim 1 or 2, where the number of discharge ports (14) is multiple, and multiple discharge ports (14) are provided equally along the extension direction of the pressure reducing channel (13). 9.A battery module under claim 1 or 2, which is composed of a heat dissipation and depressurization component (1) and a cell mounted on the heat dissipation and depressurization component (1); where the heat dissipation and depressurization component (1) is arranged in sequence, and the depressurization channels (13) of two adjacent heat dissipation and depressurization components (1) are in contact with each other.

10. A battery pack, which is composed of a battery module under any of claims 1 through 7;

Images