Electrolyte membrane
AssigneeToray Industries, Inc.
InventorsTomoyuki Kunita, Hiroaki Umeda, Tatsuhiro Inoue
Life of this patent
Estimating the term…
Abstract
An electrolyte membrane is described that has improved bondability with a catalyst layer and that achieves good power generation performance, without the electrolyte membrane undergoing a physical treatment and without any loss of surface modification effect, where the electrolyte membrane comprises a polymer electrolyte and a nonionic fluorochemical surfactant.
Claims15
An electrolyte membrane comprising a polymer electrolyte and a nonionic fluorosurfactant, wherein the polymer electrolyte is an ionic group-containing aromatic hydrocarbon polymer having an aromatic ring in the main chain of the polymer, the aromatic hydrocarbon polymer being selected from a polysulfone, a polyether sulfone, a polyphenylene oxide, a polyarylene ether polymer, a polyphenylene sulfide, a polyphenylene sulfide sulfone, a polyparaphenylene, a polyarylene polymer, a polyarylene ketone, a polyether ketone, a polyarylene phosphine oxide, a polyether phosphine oxide, a polybenzoxazole, a polybenzothiazole, a polybenzimidazole, a polyamide, a polyimide, a polyetherimide, and a polyimidesulfone,
- wherein the ionic group has a proton exchange ability and is attached directly or indirectly to the aromatic ring of the aromatic hydrocarbon polymer, and
- wherein the nonionic fluorosurfactant is a compound having a fluorine-containing group including a fluorinated alkyl group, a fluorinated alkenyl group, or a fluorinated aryl group, and a nonionic lyophilic group.
An electrolyte membrane comprising a polymer electrolyte and a nonionic fluorosurfactant, wherein the electrolyte membrane comprises a composite layer that is a composite of the polymer electrolyte and a fluorine-containing polymer porous substrate,
- wherein the polymer electrolyte is an ionic group-containing aromatic hydrocarbon polymer having an aromatic ring in the main chain of the polymer, the aromatic hydrocarbon polymer being selected from a polysulfone, a polyether sulfone, a polyphenylene oxide, a polyarylene ether polymer, a polyphenylene sulfide, a polyphenylene sulfide sulfone, a polyparaphenylene, a polyarylene polymer, a polyarylene ketone, a polyether ketone, a polyarylene phosphine oxide, a polyether phosphine oxide, a polybenzoxazole, a polybenzothiazole, a polybenzimidazole, a polyamide, a polyimide, a polyetherimide, and a polyimidesulfone,
- wherein the ionic group has a proton exchange ability and is attached directly or indirectly to the aromatic ring of the aromatic hydrocarbon polymer, and
- wherein the nonionic fluorosurfactant is a compound having a fluorine-containing group including a fluorinated alkyl group, a fluorinated alkenyl group, or a fluorinated aryl group, and a nonionic lyophilic group.
Dependencies are inferred from the claim text.