NOVELTY - The assembly has an electrode i.e. anode, separated from another electrode i.e. cathode at a constant interval. Multiple folding blocks are arranged in an upper part of a separator sheet (40) that is made of porous polymer material. A first porous coating layer (10') is laminated on a second porous coating layer (20') that is formed in a side of the porous polymer material (30). The first porous coating layer comprises a mixture of inorganic particle and macromolecular binder. Thickness and porosity of the first and second porous coating layers are different from each other.    USE - Electrode assembly for use in a secondary lithium battery (claimed), that is utilized as an energy resource of an electric vehicle and an electronic device e.g. mobile phone, camcorder and notebook computer.    ADVANTAGE - The folding blocks are arranged in the upper part of the separator sheet that is made of porous polymer material, and the first porous coating layer is laminated on the second porous coating layer so as to effectively prevent generation of by-product in the anode and induce degeneration of a battery, so that mechanical stability and safety of the battery can be improved.    DETAILED DESCRIPTION - The inorganic particle is barium titanium, lead, zirconium, oxygen, lanthanum, magnesium, niobium, hafnium oxide, tin oxide, cerium oxide, magnesium oxide, calcium oxide, zinc oxide, zirconium oxide, yttrium, aluminum, silicon carbide or aluminum hydroxide. The macromolecular binder is polyvinylidene fluoride, hexafluoro lochia propylene, polyvinylidene fluoride-hexafluoro lochia propylene, polyvinylidene fluoride-trichloroethylene, polymethyl methacrylate, polyacrylonitrile, polyvinyl pyrrolidone, polyvinylacetate, ethylene-vinyl acetate copolymer, polyethylene oxide, cellulose acetate, cellulose acetate butylate, cellulose acetate propionate, cyanoethyl polyvinylalcohol, cyanoethylcellulose, cyanoethyl sucrose, carboxyl methyl cellulose, acrylonitrile styrene butadiene copolymer or polyimide. The first porous polymer material is made of polyolefin-based porous membrane, nonwoven fabric, high-density polyethylene, low-density polyethylene, linear low-density polyethylene, ultrahigh molecular weight polyethylene, polypropylene, polybutylene, polypentene, PET, polybutyleneterephthalate, polyester, polyacetal, polyamide, polycarbonate, polyimide, polyether ether ketone, polyethersulfone, polyphenyleneoxide, polyphenylenesulfide or polyethylene naphthalate. The anode comprises anode active material that comprises lithium metal, carbonaceous material and metal compound that is silicon, germanium, tin, lead, bismuth, aluminum, gallium, indium, titanium, iron, cobalt, nickel, copper, zinc, silver, magnesium or barium. An INDEPENDENT CLAIM is also included for a secondary lithium battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of an electrode assembly.    Bi-cells (10, 20)    First and second porous coating layers (10', 20')    Porous polymer material (30)    Separator sheet (40)