Grillo-werke Ag

Armin Melzer

Petra Merkel

Rudi Kube

Norbert Schulz

Jochen Spriestersbach

Jochen Spiestersbach

Didier Rollez

Markus Van Wesel

Jürgen Wisniewski

Jan Hüttig

Joanna Von Kries

The invention is directed to a zinc powder or zinc alloy powder for alkaline batteries, which powder has a grain size distribution wherein 60 to 100 wt.-% of the particles, relative to the zinc powder or zinc alloy powder, have a diameter of from 40 to 140 &#x3bc;m. The invention is also directed to an alkaline battery.

Zinc powder or zinc alloy powder for alkaline batteries

The invention relates to zinc powders or zinc alloy powders with an inhomogeneous bulk density distribution depending on the particle size, wherein the difference of the bulk density measured according to ASTM B212 in the particle size range smaller than 75 &#x3bc;m and that in the particle size range greater than 150 &#x3bc;m is at least 0.5 g/cm, and the mean bulk density of the powder, measured according to ASTM B212, ranges from 1.8 to 4.0 g/cm. The invention is also directed to mixtures of said zinc powders or zinc alloy powders and to an alkaline battery including said powders.

Zinc powder or zinc alloy powder with inhomogeneous bulk density for alkaline batteries

Growing community of inventors

Dinslaken, Germany

Armin Melzer