Patent ID: 9225045
Filing Date: 2015-12-29
Classification: B60L,H01M,Y02E,Y02T

Abstract:
1. A battery module, comprising: a heat exchanger configured to allow a fluid to flow therethrough, wherein the heat exchanger is configured to be disposed between a first row of cylindrical electrochemical cells and a second row of cylindrical electrochemical cells, the first and second rows of cylindrical electrochemical cells being offset from one another, wherein the heat exchanger comprises: an external surface that is shaped complementary to the cylindrical electrochemical cells in the first and second rows so that the external surface of the heat exchanger contacts a portion of each of the cylindrical electrochemical cells in the first and second rows, wherein the heat exchanger is configured to allow heat conduction between the fluid and of cylindrical electrochemical cells in the first and second rows via the external surface; an inlet through which the fluid enters the heat exchanger; an outlet through which the fluid exits the heat exchanger; and a serpentine path comprising a fluid channel coupling the inlet to the outlet, the serpentine path having at least two adjacent fluid flow segments coupled together by a turn and configured to route the fluid through the fluid channel in a zig-zag path between the inlet and the outlet, wherein the turn in the serpentine path extends upwardly in a direction generally parallel to respective longitudinal axes of the cylindrical electrochemical cells in the first and second rows of cylindrical electrochemical cells such that the at least two adjacent fluid flow segments extend crosswise relative to the longitudinal axes and between the first and second rows of cylindrical electrochemical cells.