摘要:
An alkaline battery includes a positive electrode mixture, a negative electrode, and a separator interposed between the positive electrode mixture and the negative electrode. The positive electrode mixture contains a nickel oxyhydroxide, manganese dioxide and a conductive agent. (1) The nickel oxyhydroxide includes at least manganese dissolved therein, and the manganese accounts for 0.5 to 10% by mole of the total amount of metal elements contained in the nickel oxyhydroxide. (2) The nickel oxyhydroxide mainly has a β-type crystal structure. (3) The nickel oxyhydroxide has a volume-basis mean particle size of 8 to 15 μm. The use of this positive electrode mixture makes it possible to heighten the capacity of the alkaline battery and improve its storage characteristics. Also, the above-mentioned properties of the nickel oxyhydroxide including manganese enable a significant improvement in the productivity of the nickel oxyhydroxide.
摘要:
An alkaline battery of the present invention includes a positive electrode material mixture including nickel oxyhydroxide. The nickel oxyhydroxide includes a secondary particle with a crystal structure mainly composed of γ-type at at least a portion of the surface layer of the secondary particle, and with a crystal structure mainly composed of β-type in the inner portion of the secondary particle. Based on the present invention, the advantage of the alkaline battery, i.e., excellence in discharge performance under high-load, can be kept and the conventional problem of storage characteristics can be improved.
摘要:
In order to provide a method of producing a gel negative electrode for an alkaline battery for preparing a gel negative electrode in which a zinc powder, a gelling agent and an electrolyte are disposed uniformly, by means of an agitator comprising a cylindrical agitation container disposed so that the center axis X of the cylinder is parallel to the horizontal direction, the agitation container is rotated around the center axis X and the left and right portions of the agitation container are swung around an axis Y, which is orthogonal to the longitudinal direction of the agitation container, thereby agitating and mixing the alkaline electrolyte and the dry mixture.
摘要:
In order to provide a method of producing a gel negative electrode for an alkaline battery for preparing a gel negative electrode in which a zinc powder, a gelling agent and an electrolyte are disposed uniformly, by means of an agitator comprising a cylindrical agitation container disposed so that the center axis X of the cylinder is parallel to the horizontal direction, the agitation container is rotated around the center axis X and the left and right portions of the agitation container are swung around an axis Y, which is orthogonal to the longitudinal direction of the agitation container, thereby agitating and mixing the alkaline electrolyte and the dry mixture.
摘要:
A separator for alkaline batteries exhibits excellent property for holding the alkaline electrolyte, is not degraded even when the separator is used for alkaline batteries using a positive electrode mix containing an agent having a great oxidizing ability for enhancing the discharging property under a great load, maintains the function as the separator even when the separator is exposed to high temperatures for a long time and can be effectively used for alkaline batteries which are used for portable information instruments requiring the excellent discharging property under a great load such as digital cameras. The separator for alkaline batteries has a non-woven fiber structural material which comprises a polyamide fiber formed with a polyamide constituted with 60% to 100% by mole of a dicarboxylic acid unit and 40 to 99% by mole of 1,9-nonanediamine unit and a solvent-spun cellulose fiber as the main component fibers, and the ratio of the amounts by mass of the polyamide fiber to the cellulose fiber is 20:80 to 80:20. Preferably, the polyamide forming the polyamide fiber comprises the 2-methyl-1,8-octanediamine unit in combination with the 1,9-nonanediamine unit, and the ratio of the amounts by mole of the 1,9-nonanediamine unit to the 2-methyl-1,8-octanediamine unit is 99:1 to 40:60.
摘要:
An alkaline battery of the present invention includes a positive electrode material mixture including nickel oxyhydroxide. The nickel oxyhydroxide includes a secondary particle with a crystal structure mainly composed of γ-type at least a portion of the surface layer of the secondary particle, and with a crystal structure mainly composed of β-type in the inner portion of the secondary particle. Based on the present invention, the advantage of the alkaline battery, i.e., excellence in discharge performance under high-load, can be kept and the conventional problem of storage characteristics can be improved.
摘要:
An alkaline battery including a positive electrode, a negative electrode and an alkaline electrolyte, wherein the positive electrode includes a positive electrode material mixture including nickel oxyhydroxide, electrolytic manganese dioxide and expanded graphite, the expanded graphite has an average particle diameter on a volume basis of 5 to 25 μm, a BET specific surface area of 4 to 10 m2/g, and a bulk specific gravity (apparent density) measured by a static method of 0.03 to 0.10 g/cm3, the nickel oxyhydroxide has an average nickel valence of not less than 3.05, and a content of the expanded graphite in a total amount of the nickel oxyhydroxide, the electrolytic manganese dioxide and the expanded graphite that are included in the positive electrode material mixture of 3 to 15 wt %.
摘要翻译:一种包括正极,负极和碱性电解质的碱性电池,其中所述正极包括包含羟基氧化镍,电解二氧化锰和膨胀石墨的正极材料混合物,所述膨胀石墨的平均粒径基于 5〜25μm,BET比表面积为4〜10m 2 / g,静态法测定的体积比重(表观密度)为0.03〜0.10g / cm 2, 3,氢氧化正镍的平均镍价不小于3.05,膨胀石墨的含量在正极中包含的氢氧化正镍,电解二氧化锰和膨胀石墨的总量 电极材料混合物为3〜15重量%。
摘要:
Disclosed is an alkaline battery including a positive electrode, a negative electrode and an alkaline electrolyte, (1) the positive electrode having a positive electrode material mixture containing electrolytic manganese doxide and nickel oxyhydroxide, (2) the nickel oxyhydroxide having a crystal in which at least Mg is dissolved, and (3) the nickel oxyhydroxide having a tap density determined after 500 taps of not less than 2 g/cm3, an average particle size based on volume of 8 to 20 μm, and an average nickel valence of 2.95 to 3.05.
摘要翻译:公开了一种包括正极,负极和碱性电解质的碱性电池,(1)正极具有含有电解锰氧化锰和氢氧化正镍的正极材料混合物,(2)具有晶体的氢氧化正镍, 溶解最少量的Mg,(3)在500次抽头后测定的振实密度不小于2g / cm 3的氢氧化正镍,基于体积为8〜20μm的平均粒径, 平均镍价为2.95〜3.05。
摘要:
In order to provide a method of producing a gel negative electrode for an alkaline battery for preparing a gel negative electrode in which a zinc powder, a gelling agent and an electrolyte are disposed uniformly, by an agitator including a cylindrical agitation container disposed so that the center axis X of the cylinder is parallel to the horizontal direction, the agitation container is rotated around the center axis X and the left and right portions of the agitation container are swung around an axis Y, which is orthogonal to the longitudinal direction of the agitation container, thereby agitating and mixing the alkaline electrolyte and the dry mixture.
摘要:
An alkaline battery including a positive electrode, a negative electrode and an alkaline electrolyte, the positive electrode including a positive electrode material mixture containing a nickel oxyhydroxide, electrolytic manganese dioxide and a graphite conductive material, wherein the nickel oxyhydroxide includes a crystal having manganese dissolved therein and having a β type structure, and the amount of the manganese contained in the nickel oxyhydroxide is 0.5 to 10 mol % relative to the total amount of nickel and the manganese in the nickel oxyhydroxide.