▎ 摘　　要

NOVELTY - Micro-current self-heating flat panel used for battery thermal management, comprises phase-change heat storage layer and micro-current self-heating polymer layer. The structural superposition combination of the phase-change heat storage layer and the micro-current self-heating polymer layer, and the positive and negative electrodes are embedded in the two material. The phase change heat storage layer, which includes a composite phase change energy storage material. The micro-current self-heating polymer layer has a double conductive network structure, and is heated by the conductive skeleton resistance on the one hand under the driving of direct current, and also, the electric field conduction is formed by the thermal conductive filler, which stimulates the frequent reversal of the polarity arrangement direction of the molded plastic to form dielectric loss and generate heat. USE - Micro-current self-heating flat panel used for battery thermal management (claimed). ADVANTAGE - The micro-current self-heating flat panel has simple and feasible production process, cost-effective and easy large-scale production, and has important practical significance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing micro-current self-heating flat plate for battery thermal management, which involves: (a)melting fully, mixing the flame retardant and the phase change energy storage material;(b)adding expanded graphite in the molten state;(c)mixing fully with ultrasonic assistance, compacting to obtain a composite phase change energy storage layer;(d) mixing fully the thermally conductive filler, flame retardant, low viscosity epoxy resin and curing agent to obtain a fluid mixture;(e)placing the conductive skeleton and the obtained fluid mixture in the mold;(f) placing in a vacuum environment, so that the fluid mixture can fully enter the highly conductive skeleton;(g)curing material at room temperature to obtain a micro-current self-heating polymer layer;(h)placing the obtained phase-change heat storage layer and the obtained micro-current self-heating polymer layer in a mold and hot-pressing at 45-75degrees Celsius to obtain a micro-current self-heating flat plate for battery thermal management. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the micro-current self-heating composite phase change flat plate for the battery thermal management system. (Drawing includes non-English language text).