Patent ID: 9123921
Filing Date: 2015-09-01
Classification: H01M,Y02E

Abstract:
1. An electrically conductive bipolar plate for incorporation into a fuel cell, the bipolar plate comprising: a plate body having a channel-defining surface; and an activated first layer disposed over at least a portion of the channel-defining surface of the plate body, the activated first layer comprising residues of a silane coupling agent in a sufficient amount such that portions of the channel-defining surface coated with the first activated layer have a contact angle less than a predetermined value, the activated first layer made by a method comprising: a) contacting the plate body with the silane coupling agent; b) curing the silane coupling agent to form an unactivated first layer on the plate body; and c) contacting the unactivated first layer with an acid composition to form the activated first layer wherein the silane coupling agent has formula I: wherein: R Q Q