Title:
ELECTRODE MATERIAL FOR ELECTROCHEMICAL BATTERY
Document Type and Number:
Japanese Patent JPS5868881
Kind Code:
A
Abstract:
A ribbed substrate for an electrochemical cell electrode is made from a mixture of carbon fibers and carbonizable resin and has a mean pore size in the ribs which is 60-75% of the mean pore size of the web portions of the substrate which interconnect the ribs. Preferably the mean pore size of the web portion is 25-45 microns; and, if the substrate includes edge seals parallel to the ribs, the edge seals preferably have a mean pore size no greater than about ten microns. Most preferably the substrate has the same ratio of carbon fibers to polymeric carbon in all areas, including the ribs, webs, and edge seals. A substrate according to the present invention will have better overall performance than prior art substrates and minimizes the substrate thickness required for the substrate to perform all its functions well.
Inventors:
RICHIYAADO DEBUITSUDO BUROORUT
GUREN JIEEMUSU GORAA
GUREN JIEEMUSU GORAA
Application Number:
JP17080482A
Publication Date:
April 23, 1983
Filing Date:
September 29, 1982
Export Citation:
Assignee:
UNITED TECHNOLOGIES CORP
International Classes:
H01M4/96; H01M8/02; (IPC1-7): H01M8/02
Attorney, Agent or Firm:
Akashi Masatake