NOVELTY - A solid-gel mobile phase round direct ethanol fuel battery pack, comprises a battery case (1), an external electrode (3) equipped in the case and is connected in line contact mode with the case through welding point (2), an air chamber equipped between the internal electrode (4) and the case, and between the external electrode and the case, and a solid-gel mobile phase chamber (11) equipped between the internal electrode and the external electrode, comprising a solid phase and gel mobile phases on two sides of the solid phase.    USE - The solid-gel mobile phase round direct ethanol fuel battery pack is useful for industrial applications.    ADVANTAGE - The solid-gel mobile phase round direct ethanol fuel battery pack uses solid-gel mobile phase with higher conductive proton and electronic capacity to substitute present sulfuric acid and ethanol liquid phase electrolyte mobile phase that is commonly used, which can solve the ethanol infiltration problem, reduces ethanol poison for electro-catalysts of direct ethanol fuel cell (DEFC) anode and cathode, and improves the performance of DEFC. Moreover, the solid-gel mobile phase has higher conductive proton and electronic capacity; thus, it plays a roll of proton exchange membrane.    DETAILED DESCRIPTION - A solid-gel mobile phase round direct ethanol fuel battery pack, comprises a battery case (1), an external electrode (3) equipped in the case and is connected in line contact mode with the case through welding point (2), an air chamber equipped between the internal electrode (4) and the case, and between the external electrode and the case, and a solid-gel mobile phase chamber (11) equipped between the internal electrode and the external electrode, comprising a solid phase and gel mobile phases on two sides of the solid phase; where the solid phase absorbs porous materials of sulfuric acid and ethanol electrolyte solution; and the preparation elements of the gel mobile phase comprises 5-75 wt.% of ethanol (C2H5OH), 10-40 wt.% of sulfuric acid (H2SO4), 10-40 wt.% of water (H2O), 2-10 wt.% of mixed acid, 1-10 wt.% of conducting polymer or metal powder, and 1-20 wt.% of metal organic compound or metal salt.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the solid-gel mobile phase round direct ethanol fuel battery pack.    Battery case (1)    Welding point (2)    External electrode (3)    Internal electrode (4)    Solid-gel mobile phase chamber (11)