Non-sintered nickel electrode for alkaline storage cell, and alkaline storage cell utilizing the electrode
AssigneeSanyo Electric Co., Ltd.
InventorsKatsuhiko Shinyama, Yoshinori Matsuura, Reizo Maeda, Ikuo Yonezu, Koji Nishio
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Abstract
In a non-sintered nickel electrode for an alkaline storage cell, a discharge capacity and cycle life are improved. This is achieved by employing, as an active material for the non-sintered electrode, coated nickel active material particles, each of the particle comprising a base particle composed of nickel hydroxide and a Co—P—A layer coated on the base particle comprising Co and P and an element A, where A is at least one element selected from the group consisting of Mn, Zn, Ni, Y, and Bi.
Claims16
A non-sintered nickel electrode for use in an alkaline storage cell comprising a porous substrate and coated nickel particles for an active material impregnated in said porous substrate, each of said coated nickel particles comprising:
- a base particle comprising nickel hydroxide, and
- a Co—P—A layer coated on a surface of said base particle, the Co—P—A layer comprising Co, P, and an element A, where A is at least one element selected from the group consisting of Mn, Zn, Ni, Y, and Bi.
A method of producing a non-sintered nickel electrode for an alkaline storage cell, said non-sintered nickel electrode comprising a porous substrate and coated nickel particles for an active material impregnated in the substrate, the method comprising at least the steps of:
- producing a base particle comprising nickel hydroxide,
- electroless-plating to form a Co—P—A layer on a surface of said base particle by using an electroless plating bath, the Co—P—A layer comprising Co, P, and an element A, where the element A is at least one element selected from the group consisting of Mn, Zn, Ni, Y, and Bi.
Dependencies are inferred from the claim text.