| 摘要 |
831,060. Batteries. UNION CARBIDE CORPORATION. Jan. 22, 1958 [Jan. 23, 1957], No. 2120/58. Addition to 795,910. Class 53. A primary cell comprises a silver anode 12, a solid silver iodide electrolyte 14, a cathode depolarizer mix 16 and a cathode collector 22 of stainless steel, for example austenitic chromium-nickel steel. A similar steel member 10 secured to the silver anode 12 may form the cathode collector of an adjacent cell. The mix is surrounded by a synthetic resin frame 18. The members 10, 12 may be formed from a bimetallic strip, the silver iodide layer 14 being formed on the silver member 12 by means of iodine vapour carried in a stream of nitrogen. The exposed side of the steel strip may be coated with colloidal graphite. The mix 16 in the form of a slurry or suspension is then applied, and may consist of silver iodide, vanadium pentoxide, graphite and bentonite. Pieces of the size required for a single cell are cut from the coated strip. Instead of vanadium pentoxide the oxides of manganese, lead, tungsten, nickel or silver may be used. The silver may be deposited on the member 10 by electrodeposition, vacuum evaporation, spraying, painting, &c., and the silver iodide applied to the silver by a spraying or printing process. |
