Tantalum metal power with controlled size distribution and produ

Details Tantalum metal power with controlled size distribution and produ Tantalum metal power with controlled size distribution and produ

1998-07-28

1999-11-16

Sough, Hyung-Sub

Electricity: electrical systems and devices

Electrolytic systems or devices

Liquid electrolytic capacitor

361528, 361529, H01G 904

Patent

active

059868775

ABSTRACT:
A capacitor having a central electrode body having sintered metal anode with an electrode lead, the anode having a sintered product produced from a tantalum powder having deagglomerated particles such that the product of the volume mean diameter in microns multiplied by the specific surface area measured in m.sup.2 /g is a number in the range of below about 25. Capacitors having a central electrode with the anode produced from a sintered product produced from a heat treated and oxidized tantalum powder wherein the oxidized particle size is greater than about 0.7 m.sup.2 /g. Capacitors are defined in terms of anodes produced from powders having specified ratios of Scott Bulk Density to surface area or ratio of die fill rate to surface area.

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