In one aspect, a vehicle may include an energy storage device, the energy storage device being configured to supply electrical power to the vehicle; a cover defining an internal volume and an opening into the internal volume, the energy storage device being received in the internal volume, wherein the cover is formed as a layered structure including at least a first layer and a second layer inside the first layer, the first layer consisting of a woven ceramic fabric and the second layer consisting essentially of oxidized polyacrylonitrile fibers.