Preparation of nickel oxyhydroxide

Abstract

Nickel oxyhydroxide can be prepared by exposing a mixture of a nickel hydroxide and a hydroxide salt to ozone. The nickel oxyhydroxide is suitable for use in the cathode of a battery.

1 - 21 . (canceled)  
   
   
       22 . A battery comprising: 
 a cathode comprising a carbonate-free nickel oxyhydroxide;    an anode;    a separator; and    an electrolyte.    
   
   
       23 . The battery of  claim 22 , wherein the nickel oxyhydroxide includes a cobalt oxyhydroxide-modified nickel oxyhydroxide.  
   
   
       24 . The battery of  claim 22 , wherein the nickel oxyhydroxide includes a cobalt oxyhydroxide-modified gamma-nickel oxyhydroxide.  
   
   
       25 . The battery of  claim 22 , wherein the anode comprises zinc.  
   
   
       26 . The battery of  claim 23 , wherein the cathode further includes an oxidizing additive.  
   
   
       27 . The battery of  claim 26 , wherein the oxidizing additive includes sodium hypochlorite, sodium peroxydisulfate, potassium peroxydisulfate, potassium permanganate, barium permanganate, barium ferrate, silver permanganate, disilver oxide, or silver oxide.  
   
   
       28 . The battery of  claim 22 , wherein the electrolyte includes potassium hydroxide, sodium hydroxide, lithium hydroxide, or mixtures thereof.  
   
   
       29 - 31 . (canceled)