Metal for use in a negative electrode of an alkaline dry cell

Details Metal for use in a negative electrode of an alkaline dry cell Metal for use in a negative electrode of an alkaline dry cell

H - Electricity

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M

H01M 4/24 (2006.01) B22F 3/11 (2006.01) H01M 2/26 (2006.01) H01M 4/12 (2006.01) H01M 4/26 (2006.01) H01M 6/08 (2006.01) H01M 4/42 (2006.01)

Patent

CA 2236404

A method of manufacturing a metal, for use in a negative electrode of an alkaline dry cell, consisting of only Zn or a material consisting of a metal and Zn contained therein as a main component and formed as a rod-shaped material or a tubular material having three-dimensional pores formed therein, comprising the steps of molding a mixture of a to-be-removed substance and Zn powder, Zn alloy powder or/and a powder mixture of the Zn powder and powder of a metal into a rod-shaped or tubular material by a molding machine; forming three-dimensional pores by burning off the to-be-removed substance; and sintering the rod-shaped or tubular material.

Divulgation d'une méthode de fabrication d'un métal, devant être utilisé dans l'électrode négative d'une pile alcaline sèche, constitué uniquement de Zn ou d'un matériau constitué d'un métal et de Zn inclus dans ce métal comme composant principal, et à qui on a donné la forme d'un bâtonnet ou d'un tube comportant des pores tridimensionnels, comprenant les étapes suivantes : moulage en forme de bâtonnet ou de tube, à l'aide d'une machine à mouler, d'un mélange d'une substance destinée à être éliminée et de poudre de zinc, d'une poudre d'alliage de zinc ou d'un mélange de poudre de zinc et de poudre d'un métal, ou des deux; formation de pores tridimensionnels par brûlage de la substance destinée à être éliminée; et sintérisation du matériau en forme de bâtonnet ou de tube.

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