EP 0051435 A1 19820512 - Three-layer laminated matrix electrode.
Title (en)
Three-layer laminated matrix electrode.
Title (de)
Lamellierte Dreischicht-Matrixelektrode.
Title (fr)
Electrode lamelleuse du type matrice à trois couches.
Publication
Application
Priority
- US 20257880 A 19801031
- US 20258580 A 19801031
Abstract (en)
The present disclosure is directed to an improved fibrillated, matrix-type active layer; laminated electrodes containing it which possess improved strength and durability and are capable of operation at high current density with enhanced resistance to mechanical failure, a process for producing such improved active layers and laminates. The process for producing these electrode active layers is characterized by alternately or simultaneously producing two components; combining the components; shear blending (fibrillating) the mixture; drying; chopping to a fine powder form, and rolling into a self-sustaining, coherent sheet form. Alternatively, the active layer can be formed by wet deposition of the powder on a filter paper or like medium. The term "matrix" as used herein means that the active carbon particles are present within an unsintered network of carbon black/PTFE (fibrillated) material. This three-layer laminated electrode includes a porous, coherent, hydrophobic polytetrafluoroethylene (PTFE)-containing backing (wetproofing) layer, with or without carbon black therein, in contact with the nonworking surface of a "matrix" active layer containing catalyzed or uncatalyzed active carbon particles present within an unsintered network of fibrillated carbon black-PTFE and an electroconductive current distributor laminated to the working surface of said active layer, and to a process for making said laminate.
IPC 1-7
IPC 8 full level
C25B 11/04 (2006.01); C25B 11/00 (2006.01); C25B 11/08 (2006.01)
CPC (source: EP)
C25B 11/00 (2013.01)
Citation (search report)
- GB 1488945 A 19771019 - NIPPON SHINYAKU CO LTD
- GB 1431716 A 19760414 - ATOMENERGI INST FOR
- US 3396054 A 19680806 - ROBERT GREMION
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0051435 A1 19820512; EP 0051435 B1 19870114; CA 1214753 A 19861202; DE 3175831 D1 19870219; JP H01152290 A 19890614
DOCDB simple family (application)
EP 81305089 A 19811028; CA 387770 A 19811013; DE 3175831 T 19811028; JP 27597788 A 19881031