PROCESS FOR MAKING POROUS ELECTRODE PLATES

• US 3,799,808 A
• Filed: 10/07/1971
• Issued: 03/26/1974
• Est. Priority Date: 11/05/1970
• Status: Expired due to Term

• Current Assignee: Hancock H
• Original Assignee: Hancock H
• Inventors: HANCOCK H
• Application Number:
  US05/187,380
• Time in Patent Office: 901 Days
• US Class Current: 419/2
• CPC Class Codes: B22F 2998/10 Processes characterised by the sequence of their steps
• CPC Class Codes: B22F 3/1109 Inhomogenous pore distribution composite layers of porous nature B22F7/002
• CPC Class Codes: B22F 3/16 in successive or repeated steps
• CPC Class Codes: B22F 3/22 for producing castings from a slip
• CPC Class Codes: B22F 5/006 of flat products, e.g. sheets B22F3/1103 takes precedence; by using pressure rollers only see B22F3/18
• CPC Class Codes: H01M 4/04 Processes of manufacture in general
• CPC Class Codes: H01M 4/0404 by coating on electrode collectors
• CPC Class Codes: H01M 4/0416 involving impregnation with a solution, dispersion, paste or dry powder H01M4/0438 takes precedence
• CPC Class Codes: H01M 4/0435 Rolling or calendering
• CPC Class Codes: H01M 4/0471 involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
• CPC Class Codes: H01M 4/608 containing heterocyclic rings
• CPC Class Codes: H01M 4/80 Porous plates, e.g. sintered carriers
• CPC Class Codes: H01M 4/803 of only powdered material
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

AN ELONGATED, SELF-SUPPORTING POROUS METAL PLATE IS PRODUCED BY A PROCESS OF APPLYING A LAYER OF SLURRY OF NICKEL POWDER VOLATILE LIQUID AND ORGANIC BINDER TO A FLEXIBLE CARRIER STRIP WHICH IS CAPABLE OF BEING DECOMPOSED AT SINTERING TEMPERATURE AND THEN DRYING, COINING, AND SINTERING THE LAYER OF SLURRY AND DECOMPOSING THE CARRIER.

Claims