Abstract: The present invention discloses an enclosed alkaline storage cell. The enclosed alkaline storage cell comprising a negative electrode made of materials including a main active material of cadmium oxide, a positive electrode, and a separator impregnated with an alkaline electrolytic solution and interposed therebetween, characterized in that the negative electrode has a product produced by cross linking reaction between high polymers having hydroxyl group and at least one of boric acid and boric acid salt inside and/or on the surface thereof.

Abstract: A rechargeable alkaline storage cell mainly comprising a negative electrode including polyvinyl pyrolidone having a degree of polymerization of 350 to 1,000, a positive electrode, and an alkaline electrolyte, and its manufacturing method are disclosed. This invention may be employed for the sintering method or for the non-sintering method of manufacturing a negative electrode.

Abstract: A paste-type cadmium electrode for use in an alkaline storage cell, comprising a conductive substrate, an active material layer mainly comprising cadmium oxide and formed on a surface of the conductive substrate, and a conductive layer or a nickel body formed on a surface of the active material layer.The conductive layer either has therein powdered carbon and powdered alkali-resistant metal having a surface area of 0.001 to 0.5 m.sup.2 against 1 g of the active material; comprises powdered carbon, a binder and powdered alkali-resistant metal having an apparent density of 0.2 g/cc or less; or comprises a first conductive layer formed on a surface of the active material layer and comprising powdered alkali-resistant metal and a binder, and a second conductive layer formed on a surface of the first conductive layer and comprising powdered carbon and a binder.The nickel body is dispersed on a surface of the active material layer, the nickel body comprising fiber-type nickel having an average fiber diameter of 1 .

Abstract: A rechargeable alkaline storage cell comprises, as main components thereof, a negative electrode, a positive electrode and an electrolyte. The negative electrode is formed of sintered type cadmium electrode including one of a polysaccharide and its derivative having a polymerization degree of more than 320.