Patent ID: 11888197
Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 7:
8. A composite fuel cell polymer electrolyte membrane comprising:
a polymer electrolyte membrane base material having a polymer backbone and including first and second inorganic particles, the first and second inorganic particles commingled within the polymer electrolyte membrane base material to produce a confinement dimension of 3 to 10 nm between the first and second inorganic particles, the first and second inorganic particles having first and second surface properties, and the first surface property is different than the second surface property, the first surface property is hydrophobicity and the second surface property is hydrophilicity, the confinement dimension including hydrophobic and hydrophilic confinement configured to stabilize the polymer backbone of the polymer electrolyte membrane base material.