Title:
MANUFACTURING METHOD FOR GAS DIFFUSION LAYER
Document Type and Number:
Japanese Patent JP2021150069
Kind Code:
A
Abstract:
To provide a means for manufacturing a gas diffusion layer for a fuel cell without using a surfactant.SOLUTION: One aspect of the present invention relates to a manufacturing method for a gas diffusion layer, comprising: a plasma emission step of emitting plasma to a polytetrafluoroethylene (PTFE) to obtain a cleavage product of PTFE; a hydrogen radical reaction step of reacting the cleavage product of PTFE with a hydrogen radical; an oxygen- or nitrogen-containing radical reaction step of reacting the cleavage product of PTFE with an oxygen- or nitrogen-containing radical to obtain a PTFE derivative having a hydrophilic group; a paste preparation step of mixing the PTFE derivative having the hydrophilic group with water and carbon to obtain a paste; and a coating step of applying the paste to a surface of a base material to obtain a gas diffusion layer.SELECTED DRAWING: Figure 2
More Like This:
Inventors:
SONE TOYOHIRO
MAEKAWA RYOSUKE
SUZUKI TAKESHI
ADACHI TOMOHIRO
KOGA KEIKO
MAEKAWA RYOSUKE
SUZUKI TAKESHI
ADACHI TOMOHIRO
KOGA KEIKO
Application Number:
JP2020046655A
Publication Date:
September 27, 2021
Filing Date:
March 17, 2020
Export Citation:
Assignee:
TOYOTA MOTOR CORP
J SCIENCE LAB CO LTD
J SCIENCE NISHINIHON KK
J SCIENCE LAB CO LTD
J SCIENCE NISHINIHON KK
International Classes:
H01M4/88
Attorney, Agent or Firm:
Hiraki International Patent Office