초록 ▼

Provided herein are electrochemical cells having improved heat collection and transfer systems. For example, one electrochemical cell includes a drawn can having a blind side and a second side opposite the blind side. The cell also includes a positive terminal disposed in the blind side of the can a

Provided herein are electrochemical cells having improved heat collection and transfer systems. For example, one electrochemical cell includes a drawn can having a blind side and a second side opposite the blind side. The cell also includes a positive terminal disposed in the blind side of the can and electrically coupled to at least one positive electrode disposed within the can and a negative terminal disposed in the blind side of the can and electrically coupled to at least one negative electrode disposed within the can. The cell further includes a base coupled to a substantially flat edge disposed on the second side of the can. A bottom surface of the base is adapted to maintain a substantially flat configuration when coupled to a heat sink.

대표청구항 ▼

1. A battery cell, comprising: a drawn can comprising a closed blind side and an open second side opposite the blind side;a positive terminal disposed in the blind side of the can and electrically coupled to at least one positive electrode disposed within the can;a negative terminal disposed in the

1. A battery cell, comprising: a drawn can comprising a closed blind side and an open second side opposite the blind side;a positive terminal disposed in the blind side of the can and electrically coupled to at least one positive electrode disposed within the can;a negative terminal disposed in the blind side of the can and electrically coupled to at least one negative electrode disposed within the can; anda base coupled to the second side of the can to close the second side, wherein a bottom surface of the base is configured to maintain a substantially flat configuration when coupled to a heat sink and the base is formed from steel, aluminum, an aluminum alloy, or a combination thereof. 2. The battery cell of claim 1, wherein the base comprises a first portion having a length that is longer than the length of the can and a second portion above the first portion, and wherein a substantially flat contact surface of the first portion is configured to contact a substantially flat edge disposed on the second side of the can to form a seam between the base and the can. 3. The battery cell of claim 2, wherein the base is laser welded to the can along the seam. 4. The battery cell of claim 2, wherein the base is coupled to the can via a weld that is substantially parallel to and offset a distance from the seam. 5. The battery cell of claim 1, wherein the base is formed from a thermally conductive material configured to conduct heat from the battery cell and the can into the base. 6. The battery cell of claim 1, wherein the base comprises a lip portion extending beyond a side wall of the can in the lengthwise direction, wherein the lip portion is configured to be coupled to a vehicle component to fix the battery cell relative to the vehicle component. 7. The battery cell of claim 1, wherein the base comprises a first portion having a length that is longer than the length of the can and a locking member protruding from a top surface of the first portion, wherein the locking member is configured to be coupled to a vehicle component to fix the battery cell relative to the vehicle component. 8. A battery cell, comprising: a drawn can comprising a closed blind side and an open second side opposite the blind side;a base coupled to the second side of the can to close the second side, wherein the base comprises a substantially flat bottom surface configured to remain substantially flat when the base is coupled to a heat sink;a terminal disposed in the blind side of the can and electrically coupled to at least one electrode disposed within the can;a current collector coupled to the electrode and to the terminal to electrically connect the electrode to the terminal;a heat conductor thermally coupled to the current collector and configured to dissipate heat away from the electrode and the current collector; andan isolation member disposed between the current collector and the can to electrically separate but thermally couple the current collector and the can. 9. The battery cell of claim 8, wherein the electrode comprises an anode and a second terminal is disposed in the blind side of the can and electrically coupled to a second electrode, and further comprising a second current collector coupled to the second electrode and to the second terminal, a second heat conductor thermally coupled to the second current collector, and a second isolation member disposed between the second current collector and the can to electrically separate but thermally couple the second current collector and the can, wherein the second electrode comprises a cathode. 10. The battery cell of claim 8, wherein the base is coupled to a substantially flat edge of the second side of the can via laser welding. 11. The battery cell of claim 8, wherein the base comprises a first portion having a length that is longer than the length of the can and a second portion above the first portion, and wherein the base is a single piece formed via a fine blanking process. 12. The battery cell of claim 8, wherein the drawn can, the base, or both are made of aluminum. 13. The battery cell of claim 8, wherein the base comprises a first portion having a length that is longer than the length of the can and an extension disposed substantially perpendicular to a top surface of the first portion and a second portion above the first portion, and wherein the extension is configured to couple to a complementary extension of an adjacent can to couple the can to the adjacent can. 14. A battery cell, comprising: a housing, comprising: a casing having an opening disposed in a bottom portion of the casing opposite a closed blind side of the casing; anda base sealed in the opening of the casing, wherein a bottom surface of the base is substantially flat, wherein the base comprises a substantially flat contact surface configured to contact a substantially flat edge disposed on the bottom portion of the casing to form a seam between the base and the casing, and wherein the base is coupled to the casing via a weld that is substantially parallel to and offset a distance from the seam; anda plurality of terminals disposed in the blind side of the casing and electrically coupled to at least one electrode disposed within the casing. 15. The battery cell of claim 14, wherein a portion of the base is configured to extend beyond a side wall of the casing in the lengthwise direction to form a lip portion. 16. The battery cell of claim 15, wherein the lip portion is configured to be coupled to a secondary component to fix the battery cell with respect to the secondary component. 17. The battery cell of claim 15, wherein the lip portion comprises an aperture configured to receive a fastener to couple the battery cell to a secondary component. 18. The battery cell of claim 14, comprising a current collector coupled to a first electrode and to a first terminal of the plurality of terminals to electrically connect the first electrode to the first terminal, a heat conductor thermally coupled to the current collector and configured to dissipate heat away from the first electrode and the current collector, and an isolation member disposed between the current collector and the casing to electrically separate but thermally couple the current collector and the casing. 19. The battery cell of claim 18, wherein the first electrode comprises an anode and a second terminal is disposed in the blind side of the casing and electrically coupled to a second electrode, and further comprising a second current collector coupled to the second electrode and to the second terminal, a second heat conductor thermally coupled to the second current collector, and a second isolation member disposed between the second current collector and the casing to electrically separate but thermally couple the second current collector and the casing, wherein the second electrode comprises a cathode.