Patent ID: 11894514
Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A process of making a solid state battery comprising connecting a cathode comprising a surface layer and an interior region, said interior region comprising a phthalocyanine solid-state electrolyte and said surface comprising a layer of phthalocyanine solid-state electrolyte; and an anode, said process comprising the steps of:
a) contacting said cathode's surface layer of phthalocyanine solid-state electrolyte with a mixture of lithium bis(fluorosulfonyl) imide, dimethoxyethane, 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether and fluoroethylene carbonate;
b) allowing said mixture of lithium bis(fluorosulfonyl) imide, dimethoxyethane, 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether and fluoroethylene carbonate on said cathode's surface layer of phthalocyanine solid-state electrolyte to dry at about 20° C. to about 25° C. for a time of from about 15 minutes to about 25 minutes;
c) contacting said cathode's surface layer of phthalocyanine solid-state electrolyte with a mixture of lithium bis(fluorosulfonyl) imide, dimethoxyethane, 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether and fluoroethylene carbonate a second time;
d) contacting said cathode's surface layer of phthalocyanine solid-state electrolyte, said cathode's surface layer of phthalocyanine solid-state electrolyte comprising a coating comprising said mixture of lithium bis(fluorosulfonyl) imide, dimethoxyethane, 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether and fluoroethylene carbonate, with said lithium metal anode to form a solid-state battery comprising a lithium metal anode, solid-state electrolyte, and lithiated iron phosphate cathode, said solid-state battery comprising a solid electrolyte interphase that connects said lithium anode and phthalocyanine solid-state electrolyte, said solid electrolyte interphase comprising lithium fluoride and an organic amorphous layer that are reaction products of said lithium bis(fluorosulfonyl) imide, dimethoxyethane, 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether and fluoroethylene carbonate; and
e) sealing said solid-state battery in a coin cell.