US2003039888A1PendingUtilityA1

Primary alkaline battery including nickel oxyhydroxide

45
Assignee: GILLETTE CO A DELAWARE COPriority: Aug 4, 2000Filed: Oct 7, 2002Published: Feb 27, 2003
Est. expiryAug 4, 2020(expired)· nominal 20-yr term from priority
Inventors:Francis WangEnoch I. WangPhilip TrainerGuang-Xue Wei
Y02E60/10H01M 6/085H01M 4/364H01M 4/366H01M 4/52H01M 4/621H01M 6/08Y10T29/49108
45
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

An alkaline battery has a cathode including a nickel oxyhydroxide.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A primary alkaline battery comprising: 
 a cathode comprising cobalt oxyhydroxide-modified nickel oxyhydroxide;    an anode;    a separator; and    an alkaline electrolyte.    
     
     
         2 . The battery of  claim 1 , wherein the cobalt oxyhydroxide-modified nickel oxyhydroxide has a coating of a cobalt oxyhydroxide on a nickel oxyhydroxide.  
     
     
         3 . The battery of  claim 1 , wherein the coating is substantially uniform.  
     
     
         4 . The battery of  claim 1 , wherein the nickel oxyhydroxide is γ-NiOOH.  
     
     
         5 . The battery of  claim 1 , wherein the cobalt oxyhydroxide is a sodium or potassium modified cobalt oxyhydroxide.  
     
     
         6 . The battery of  claim 5 , wherein the cobalt oxyhydroxide is a potassium modified cobalt oxyhydroxide.  
     
     
         7 . The battery of  claim 1 , wherein the cobalt oxyhydroxide-modified nickel oxyhydroxide is derived from nickel hydroxide coated with between 2% and 15% cobalt hydroxide by weight.  
     
     
         8 . The battery of  claim 1 , wherein the cobalt oxyhydroxide-modified nickel oxyhydroxide is derived from nickel hydroxide coated with between 3% and 10% cobalt hydroxide by weight.  
     
     
         9 . The battery of  claim 1 , wherein the cobalt oxyhydroxide-modified nickel oxyhydroxide is derived from nickel hydroxide coated with between 4% and 8% cobalt hydroxide by weight.  
     
     
         10 . The battery of  claim 1 , wherein the cobalt oxyhydroxide-modified nickel oxyhydroxide is derived from nickel hydroxide coated with 5% cobalt hydroxide by weight.  
     
     
         11 . The battery of  claim 1 , wherein the cobalt oxyhydroxide-modified nickel oxyhydroxide is derived from α-Ni(OH) 2 .  
     
     
         12 . The battery of  claim 1 , wherein the anode comprises zinc.  
     
     
         13 . The battery of  claim 1 , wherein the nickel oxyhydroxide is substantially non-fractured.  
     
     
         14 . The battery of  claim 1 , wherein the cathode further includes an oxidizing additive.  
     
     
         15 . The battery of  claim 14 , wherein the oxidizing additive includes K 2 S 2 O 8  or KMnO 4 .  
     
     
         16 . A primary alkaline battery comprising: 
 a cathode comprising a nickel oxyhydroxide derived from α-Ni(OH) 2 ;    an anode;    a separator; and    an alkaline electrolyte.    
     
     
         17 . The battery of  claim 16 , wherein the nickel oxyhydroxide is a cobalt oxyhydroxide-modified nickel oxyhydroxide.  
     
     
         18 . The battery of  claim 16 , wherein the cobalt oxyhydroxide-modified nickel oxyhydroxide has a coating of a cobalt oxyhydroxide on a nickel oxyhydroxide.  
     
     
         19 . The battery of  claim 18 , wherein the coating is substantially uniform.  
     
     
         20 . The battery of  claim 18 , wherein the cobalt oxyhydroxide is a sodium or potassium modified cobalt oxyhydroxide.  
     
     
         21 . The battery of  claim 18 , wherein the cobalt oxyhydroxide is a potassium modified cobalt oxyhydroxide.  
     
     
         22 . The battery of  claim 17 , wherein the cobalt oxyhydroxide-modified nickel oxyhydroxide is derived from nickel hydroxide coated with between 2% and 15% cobalt hydroxide by weight.  
     
     
         23 . The battery of  claim 16 , wherein the anode comprises zinc.  
     
     
         24 . The battery of  claim 16 , wherein the cathode further includes an oxidizing additive.  
     
     
         25 . The battery of  claim 24 , wherein the oxidizing additive includes K 2 S 2 O 8  or KMnO 4 .  
     
     
         26 . A method of manufacturing a primary alkaline battery comprising: 
 forming a cobalt oxyhydroxide-modified nickel oxyhydroxide; and    assembling a cathode comprising the cobalt oxyhydroxide-modified nickel oxyhydroxide, an anode, a separator, and an alkaline electrolyte to form the alkaline battery.    
     
     
         27 . The method of  claim 26 , wherein forming a cobalt oxyhydroxide-modified nickel oxyhydroxide includes converting α-Ni(OH) 2  to nickel oxyhydroxide.  
     
     
         28 . The method of  claim 26 , wherein forming cobalt oxyhydroxide-modified nickel oxyhydroxide includes converting nickel hydroxide coated with between 3% and 15% cobalt hydroxide by weight.  
     
     
         29 . The method of  claim 26 , wherein the nickel oxyhydroxide is substantially non-fractured.  
     
     
         30 . The battery of  claim 26 , wherein the cathode further includes an oxidizing additive.  
     
     
         31 . The battery of  claim 30 , wherein the oxidizing additive includes K 2 S 2 O 8  or KMnO 4 .  
     
     
         32 . A method of manufacturing a primary alkaline battery comprising: 
 forming substantially non-fractured nickel oxyhydroxide; and    assembling a cathode comprising the nickel oxyhydroxide, an anode, a separator, and an alkaline electrolyte to form the alkaline battery.    
     
     
         33 . The method of  claim 32 , wherein forming nickel oxyhydroxide includes converting α-Ni(OH) 2  to nickel oxyhydroxide.  
     
     
         34 . The method of  claim 32 , wherein the nickel oxyhydroxide is modified with cobalt oxyhydroxide.  
     
     
         35 . The method of  claim 32 , wherein the cathode further includes K 2 S 2 O 8  or KMnO 4 .  
     
     
         36 . A method of decreasing capacity loss in a nickel oxyhydroxide primary alkaline battery comprising: 
 forming a cathode including a nickel oxyhydroxide; and    assembling the cathode, an anode, a separator, and an alkaline electrolyte to form the alkaline battery,    wherein the battery has a capacity loss after storage for 2 weeks at 60° C. of less than 40 percent.    
     
     
         37 . The method of  claim 36 , further comprising converting α-Ni(OH) 2  to the nickel oxyhydroxide.  
     
     
         38 . The method of  claim 36 , further comprising converting cobalt hydroxide-coated α-Ni(OH) 2  to the nickel oxyhydroxide.  
     
     
         39 . The method of  claim 36 , further comprising converting cobalt hydroxide modified nickel hydroxide to the nickel oxyhydroxide.  
     
     
         40 . A cathode for a battery comprising non-fractured nickel oxyhydroxide or a cobalt oxyhydroxide-modified nickel oxyhydroxide.

Join the waitlist — get patent alerts

Track US2003039888A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.