NOVELTY - The heat radiation plate (10) has a high-polymer matrix layers. A filler layer is inserted in an interlayer manner between the high-polymer matrix layers. The filler layer is made of a conductive fiber with a three-dimensional (3D) web structure. The heat radiation plate is inserted in an interlayer manner between adjacent battery cells (20) of the battery module (30). A material for the filler layer is selected from a group consisting of a carbon-based conductive fiber and a metal-based conductive fiber or a compound of them.    USE - Heat radiation plate for battery module used in electric vehicle such as passenger automobile, sports utility vehicle (SUV), bus, truck, commercial vehicle, watercraft such as boat and ship, aircraft, hybrid vehicle, plug-in hybrid electric and hydrogen powered vehicle.    ADVANTAGE - The filler layer can be made of the carbon-based conductive fiber with web structure, so as to improve the heat radiation performance of the high-polymer matrix layers. The nano fibers are interconnected in the form of the web in the carbon-based conductive fiber with web structure, so as to improve connectivity between the nano fibers. Thus the thermal conductivity performance can be increased. The filler layer can improve the heat radiation performance of the high polymer matrix layers, so that the heat transfer properties can be increased. The structural feature of the filler layer can be in the three-dimensional web form, so that the anisotropy of thermal conductivity can be improved. The heat radiation plate can prevent the heat conduction interfacial resistance generated due to non-contact between fillers contained in plastic of the plastic complex material to improve thermal conductivity, so that the heat radiation inside and outside the battery can be facilitated. Thus the overheating and thermal runaway can be prevented and the overall performance of the battery can be improved. The salability of the electric vehicle can be improved and efficiency of the battery can be increased.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing heat radiation plate for battery module.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of the battery module with heat radiation plate.    Heat radiation plate (10)    Edge portion (13)    Adjacent battery cells (20)    Battery module (30)