Abstract: Provided is a separator for an alkaline battery, capable of suppressing reduction in the characteristics of the alkaline battery after storage. The separator for an alkaline battery is interposed between the cathode and anode of the alkaline battery, is used to isolate the active material of both electrodes, and is configured by including 20-90 mass % cellulose fiber and having the remainder being an alkali-resistance synthetic fiber. The cellulose fiber includes a dissolving pulp.

Abstract: A thin separator paper is provided for separating a positive electrode active material and a negative electrode active material from one another in alkaline battery. The separator paper has high gas tightness, high shortage preventing effect, and low deterioration. The separator paper possesses a crystalline structure in which cellulose 1 and cellulose 2 coexist. A ratio of the cellulose 2 is controlled in relation to the cellulose 1 and the separator paper is made by using an alkali treated pulp beaten from CSF 50 ml to 0 ml, as a raw material. The separator paper has the thickness between 15 ?m and 60 ?m, the gas tightness between 10 minutes/100 ml and 800 minutes/100 ml, and the area shrinkage rate which is not greater than 2%. Also provided is an alkaline battery containing the separator paper.

Abstract: A thin separator paper is provided for separating a positive electrode active material and a negative electrode active material from one another in alkaline battery. The separator paper has high gas tightness, high shortage preventing effect, and low deterioration. The separator paper possesses a crystalline structure in which cellulose 1 and cellulose 2 coexist. A ratio of the cellulose 2 is controlled in relation to the cellulose 1 and the separator paper is made by using an alkali treated pulp beaten from CSF 50 ml to 0 ml, as a raw material. The separator paper has the thickness between 15 ?m and 60 ?m, the gas tightness between 10 minutes/100 ml and 800 minutes/100 ml, and the area shrinkage rate which is not greater than 2%. Also provided is an alkaline battery containing the separator paper.

Abstract: A separator paper is provided which simultaneously satisfies the requirements to have a high denseness that can prevent internal shortage due to such as the deposition of the zinc oxide dendrite accompanied by not adding mercury, and a high liquid impregnate properties that can improve heavy discharging properties.

Abstract: An electrolytic paper for an electrolytic capacitor interposed between an anode foil and a cathode foil is made of cellulose fiber induced with organic substituent. The inducing reaction of the organic substituent is selected from etherification for hydroxyl group contained in the cellulose fiber, esterification for hydroxyl group contained in the cellulose fiber, or acetalization for hydroxyl group contained in the cellulose fiber. The swelling degree of the electrolytic paper made of this organic substituent induced fiber for electrolyte is increased.