NOVELTY - The battery has an electrode assembly and an electrolyte held in a sealed battery shell body. A composite diaphragm (8) is located between a nickel anode (10) and a zinc cathode (9). Edges of the nickel anode and the zinc cathode are respectively exposed with 0.5-50 mm at both ends of the electrode assembly. The exposing ends are respectively bent and folded at 90 degrees from outside to inside to form a bag to respectively pack the cathode and the anode. Two end surfaces of the electrode assembly form flat two end surfaces of conductive metals.    USE - Cylindrical zinc-nickel battery.    ADVANTAGE - The battery has simple manufacturing technique, reduced cost, high safety and reliability, long service life, strong anti-shock performance, and better discharging performance of large current.    DETAILED DESCRIPTION - The diaphragm is formed by welding the diaphragm after hydrophilic processing of a micro-pore consisting of a layer of polypropylene/polyethylene, a layer of vinylon, polypropylene/non-woven fabrics, or bonding and drying one or more of methyl cellulose, carboxymethylcellulose, hydroxypropylmethylcellulose, polyvinyl alcohol, photovoltaic and PTFE material. A surface of a cover cap lower component (2) is plated with silver, copper, indium, lead, tin, zinc or alloy. A surface of a cover cap upper component (6) is plated with alloy plating layer formed by materials of copper, nickel, tin, silver, bismuth, zinc, lead, platinum, antimony, selenium or titanium. A cathode current collecting piece (3) is made of stainless steel, spring steel, copper-plated steel band, copper alloy, nickel or multiple metal covering bands. A surface of the cathode current collecting piece is plated with alloy of silver, lead, bismuth, nickel, zinc, tin or copper. An anode current collecting sheet (11) is formed by alloy consisting of metals of silver, nickel, antimony, selenium, titanium, copper, zinc, indium or tin, or formed by one or more alloys of stainless steel, spring steel, nickel-plated steel sheet, nickelizing iron sheet, red copper, brass, nickel foil, zinc foil, tin foil, silver foil and red copper. An alkali-resisting insulating tape layer (5) is formed by selecting materials of polypropylene, polyethylene, PTFE and nylon. An INDEPENDENT CLAIM is also included for a manufacturing method of a cylindrical zinc-nickel battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a cylindrical zinc-nickel battery. '(Drawing includes non-English language text)'    Cover cap lower component (2)    Cathode current collecting piece (3)    Alkali-resisting insulating tape layer (5)    Cover cap upper component (6)    Composite diaphragm (8)    Zinc cathode (9)    Nickel anode (10)    Anode current collecting sheet (11)