Thermal Insulation of Battery Cells

摘要

A battery frame includes a plurality of battery cell compartments that are configured to hold battery cells. In one embodiment, each battery cell compartment includes a plurality of alignment features that protrude from an interior surface of the compartment by a protrusion distance. When a battery cell is inserted into the cell compartment, the alignment features make contact with the side of the battery cell to center the battery cell in the cell compartment and to create an air gap between the side of the battery cell and the interior surface of the cell compartment. The air gap reduces heat transfer from the battery cell to adjacent battery cells, which advantageously protects adjacent battery cells when a battery cell fails and releases a large amount of heat during a thermal runaway.

主权项

1. An electric motorcycle comprising:
an electric motor used to drive the motorcycle; and a battery assembly that provides electrical power to the electric motor, the battery assembly comprising:
a plurality of battery cells; anda battery frame comprising a plurality of battery cell compartments, each battery cell compartment holding one of the battery cells, each battery cell compartment comprising:
an interior surface facing the battery cell held in the battery cell compartment, anda plurality of alignment features formed on the interior surface, the alignment features protruding from the interior surface to contact the battery cell, thereby creating an air gap between the interior surface and the battery cell.