Back to results
US 11,575,141 B2Granted
Nitrogen-doped phosphoric acid fuel cell electrolyte
AssigneeRobert Bosch GmbH
InventorsMordechai Kornbluth, Soo Kim, Jonathan Mailoa
Life of this patent
Estimating the term…
Abstract
A fuel cell electrolyte includes a nitrogen-doped phosphate tetrahedral network having a plurality of linked tetrahedra, each of the plurality of the linked tetrahedra having a phosphorus cation center and four anions including oxygen or nitrogen, the network having at least one compound of formula (I): H3+xPO4−xNx where x is any number between 0.001 and 3.
Claims13
A fuel cell electrolyte comprising:
- a nitrogen-doped phosphate tetrahedral network having a plurality of nitrogen bridges and a plurality of linked tetrahedra, each of the plurality of the linked tetrahedra having a phosphorus cation center and four anions including oxygen or nitrogen, the network having at least one compound of formula (I):
- H3+xPO4−xNx (I),
- where x is any number between 0.001 and 2.9 with the exception of diammonium phosphate (NH4)2HPO4.
A fuel cell comprising:
- an anode;
- a cathode;
- and
- a membrane including an electrolyte having a nitrogen-doped phosphate tetrahedral network having a plurality of nitrogen bridges and having at least one compound of formula (I) and at least one compound of formula (II):
- H3+xPO4−xNx (I),
- H3+x−2yPO4−x−yNx (II),
- where
- x is any number between 0.1-0.9, 1.1-1.9, or 2.1-2.9 in formula (I) and 0.1-0.9 and 1.1-3 in formula (II);
- and
- y is any number between 0 and 1.5.
7 more elements
Dependencies are inferred from the claim text.