Granted Patent B2

US 12,749,734 · App. 18/316,551 · Granted Sep 29, 2026

Inventors: Neeraj S. Shidore (Novi, MI); Chinmaya Patil (South Lyon, MI); Seunghwan Keum (Northville, MI); Sanjay K. Mahajan (Bloomfield Hills, MI); Madhusudan Raghavan (West Bloomfield, MI)

Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC

H01M10/6556H01M10/613H01M10/653H01M10/6552H01M50/213H01M2220/20

Abstract

Claims (45)

1 . A rechargeable energy storage system comprising:

a housing including an interior zone;

a coolant member arranged in the interior zone of the housing; and

a plurality of energy storage cells arranged in the interior zone on the coolant member,

wherein each of the plurality of energy storage cells comprises:

a cell can defining an energy storage medium housing, the cell can including a first end supported at the coolant member and a second end;

an amount of energy storage medium arranged in the energy storage medium housing;

a heat absorption member extending from the first end toward the second end through the amount of energy storage medium; and

a fin that is a solid structure extending from the coolant member into the heat absorption member along a first direction from a base of the fin positioned at the coolant member to a tip of the fin positioned opposite the base in the first direction,

wherein the heat absorption member includes an inner surface having a plurality of inner threads,

wherein the fin includes an outer surface having a plurality of outer threads that engage with the inner threads, the outer threads being in direct contact with the inner surface of the heat absorption member, and

wherein the outer threads extend continuously from the base of the fin to the tip of the fin.

2 . The rechargeable energy storage system according to claim 1 , wherein the heat absorption member includes a conduit extending through the amount of energy storage medium.

3 . The rechargeable energy storage system according to claim 2 , wherein the conduit is formed from a thermally conductive material coated with an electrically insulative material.

4 . The rechargeable energy storage system according to claim 2 , wherein the coolant member includes a first surface, a second surface, and a cooling fluid passage arranged between the first surface and the second surface, the cooling fluid passage including an inlet, an outlet, the heat absorption member being in thermally conductive contact with one of the first surface and the second surface.

5 . The rechargeable energy storage system according to claim 4 , wherein the heat absorption member includes a first end portion connected to the first surface of the coolant member and a second end portion terminating in the cell can.

6 . The rechargeable energy storage system according to claim 4 , wherein the heat absorption member includes a first end portion fluidically connected to the cooling fluid passage and a second end portion that extends outwardly of the cell can.

7 . The rechargeable energy storage system according to claim 4 , wherein the fin extends from the one of the first surface and the second surface into the heat absorption member.

8 . The rechargeable energy storage system according to claim 1 , wherein the cell can includes a first terminal arranged at one of the first end and the second end, and a second terminal arranged at the other of the first end and the second end, the heat absorption member extending through each of the first terminal and the second terminal.

9 . The rechargeable energy storage system according to claim 1 , wherein the cell can includes a first terminal arranged at one of the first end and the second end, and a second terminal arranged at the one of the first end and the second end spaced from the first terminal.

10 . A vehicle comprising:

a body;

an electric motor supported in the body; and

a rechargeable energy storage system comprising:

a housing including an interior zone;

a coolant member arranged in the interior zone of the housing; and

a plurality of energy storage cells arranged in the interior zone on the coolant member,

wherein each of the plurality of energy storage cells comprises:

a cell can defining an energy storage medium housing, the cell can including a first end supported at the coolant member and a second end;

an amount of energy storage medium arranged in the energy storage medium housing;

a heat absorption member extending from the first end toward the second end through the amount of energy storage medium; and

a fin that is a solid structure extending from the coolant member into the heat absorption member along a first direction from a base of the fin positioned at the coolant member to a tip of the fin positioned opposite the base in the first direction,

wherein the heat absorption member includes an inner surface having a plurality of inner threads,

wherein the fin includes an outer surface having a plurality of outer threads that engage with the inner threads, the outer threads being in direct contact with the inner surface of the heat absorption member, and

wherein the outer threads extend continuously from the base of the fin to the tip of the fin.

11 . The vehicle according to claim 10 , wherein the heat absorption member includes a conduit extending through the amount of energy storage medium.

12 . The vehicle according to claim 11 , wherein the conduit is formed from a thermally conductive material coated with an electrically insulative material.

13 . The vehicle according to claim 11 , wherein the coolant member includes a first surface, a second surface, and a cooling fluid passage arranged between the first surface and the second surface, the cooling fluid passage including an inlet, an outlet, the heat absorption member being in thermally conductive contact with one of the first surface and the second surface.

14 . The vehicle according to claim 13 , wherein the heat absorption member includes a first end portion connected to the first surface of the coolant member and a second end portion terminating in the cell can.

15 . The vehicle according to claim 13 , wherein the heat absorption member includes a first end portion fluidically connected to the cooling fluid passage and a second end portion that extends outwardly of the cell can.

16 . The vehicle according to claim 13 , wherein the fin extends from the one of the first surface and the second surface into the heat absorption member.

17 . The vehicle according to claim 10 , wherein the cell can includes a first terminal arranged at one of the first end and the second end, and a second terminal arranged at the other of the first end and the second end, the heat absorption member extending through each of the first terminal and the second terminal.

18 . The vehicle according to claim 10 , wherein the cell can includes a first terminal arranged at one of the first end and the second end, and a second terminal arranged at the one of the first end and the second end spaced from the first terminal.

19 . The rechargeable energy storage system according to claim 1 , wherein at least some of the outer threads of the fin are positioned to overlap the amount of energy storage medium in a second direction orthogonal to the first direction.

20 . The vehicle according to claim 10 , wherein at least some of the outer threads of the fin are positioned to overlap the amount of energy storage medium in a second direction orthogonal to the first direction.

Assignments (1)

Continuity (1)

References Cited (16)