Fuel cell with electrode having an electrically conductive nano-column and production method thereof
AssigneesToyota Jidosha Kabushiki Kaisha, Hitachi Zosen Corporation
InventorsHaruyuki Nakanishi, Chikashi Inazumi, Yuki Sairyo, Momoyo Sawai, Kenji Yoshikawa, Tomoya Yamashita
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Abstract
In a fuel cell including an electrolyte membrane and a pair of electrodes disposed on both sides of the electrolyte membrane, at least one of the electrodes has an electrically conductive nanocolumn that is oriented with an inclination of 60° or less with respect to a planar direction of the electrolyte membrane, a catalyst supported on the electrically conductive nanocolumn, and an electrolyte resin coating the electrically conductive nanocolumn.
Claims18
A fuel cell comprising:
- an electrolyte membrane;
- a first electrode disposed on a surface of the electrolyte membrane, and
- a second electrode which is disposed on another surface of the electrolyte membrane and which has a plurality of electrically conductive nanocolumn oriented in one direction with an inclination of 60° or less with respect to a planar direction of the electrolyte membrane, a catalyst supported on the electrically conductive nanocolumn, and an electrolyte resin coating the electrically conductive nanocolumn.
A production method for a fuel cell including an electrolyte membrane and a pair of electrodes disposed on both sides of the electrolyte membrane, comprising:
- growing on a substrate electrically conductive nanocolumns that are oriented substantially vertically to a planar direction of the substrate;
- supporting a catalyst on the electrically conductive nanocolumns;
- and
- thermally transferring the electrically conductive nanocolumn supporting the catalyst on the substrate to the electrolyte membrane so that the electrically conductive nanocolumns are oriented in one direction with an inclination of 60° or less with respect to a planar direction of the electrolyte membrane.
A production method for a fuel cell including an electrolyte membrane and a pair of electrodes disposed on both sides of the electrolyte membrane, comprising:
- an electrically conductive nanocolumn growth step of growing on a substrate electrically conductive nanocolumns that are oriented substantially vertically to a planar direction of the substrate;
- a catalyst support step of supporting a catalyst on the electrically conductive nanocolumn;
- an electrolyte resin application step of applying a perfluorocarbon sulfonic acid resin to the electrically conductive nanocolumn supporting the catalyst;
- and
- a thermal transfer step of thermally transferring the electrically conductive nanocolumns supporting the catalyst on the substrate to the perfluorocarbon sulfonic acid resin membrane under conditions including a heating temperature of 140° C. to 160° C., an applied pressure of 1 MPa to 5 MPa, and a transfer time of 10 minutes to 30 minutes.
(canceled)
Dependencies are inferred from the claim text.