Fine powders for use in primary and secondary batteries

Abstract

Fine battery powders and methods for producing fine battery powders. The powders have a well-controlled microstructure and morphology and preferably have a small average particle size. The method includes forming the particles from an aerosol of powder precursors. The invention also includes batteries formed from the powders.

1 - 21 . (canceled)  
     
     
         22 . A battery comprising at least one electrocatalytic layer, wherein said electrocatalytic layer comprises fine battery particles having an average particle size of not greater than about 20 μm and wherein said particles have a substantially spherical morphology and said particles have a particle size distribution wherein at least about 80 weight percent of said particles are not larger than twice said average particle size.  
     
     
         23 . An electrocatalytic device as recited in  claim 22 , wherein said average particle size is at least about 0.3 μm.  
     
     
         24 . An electrocatalytic device as recited in  claim 22 , wherein said average particle size is not greater than about 10 μm.  
     
     
         25 . An electrocatalytic device as recited in  claim 22 , wherein said battery is a lithium-ion battery.  
     
     
         26 - 31 . (canceled)