Electronic connection in an all-solid state battery at the anode/electrolyte interface
The present invention relates to a solid-state battery that is based on a phthalocyanine solid-state electrolyte/anode connection that is chemically obtained. Such chemical connection process yields a solid electrolyte interphase that connects the solid-state battery's phthalocyanine solid-state electrolyte and anode. Unlike other processes for forming solid-state electrolyte/anode connections, the present chemical process does not require that solid-state electrolyte be ductile and flow under high pressure.
1. A solid-state battery comprising a lithium metal anode or a lithium-indium alloy anode, a cathode comprising a surface 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 a solid electrolyte interphase, said solid electrolyte interphase connecting said phthalocyanine solid-state electrolyte and said lithium metal anode, said solid electrolyte interphase comprising lithium fluoride and an organic amorphous layer that are reaction products of lithium bis(fluorosulfonyl) imide in dimethoxyethane, and a mixture of 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether and fluoroethylene carbonate, said solid-state battery having a discharge rate of:
a) from about seventeen hours, C/17, to about 2.83 hours, C/2.83, at 23° C. with at least 97% capacity;
b) from about 8.5 hours, C/8.5, at 0° C. with at least 80% capacity;
c) from about three hours to about one hour at 23° C. with at least 97% capacity; or
d) from about three hours to about one hour at 0° C. with at least 80% capacity.
2. The solid-state battery of claim 1 wherein said anode comprises a lithium metal film having a thickness of from about 20 microns to about 149 microns or from about 50 microns to about 149 microns.
3. The solid-state battery of claim 1 wherein said anode has a surface area of from about 0.6 cm 2 to about 1000 cm 2 or from about 0.6 cm 2 to about 780 cm 2 .
4. The solid-state battery of claim 1 wherein said phthalocyanine solid-state electrolyte comprises one mole of Tributyl(2-ethoxyethyl)ammonium Lithium Phthalocyanine and two moles of lithium bis(fluorosulfonyl) imide.
5. A device comprising at least one battery according to claim 1 .
6. The device of claim 5 , said device being a computer, smart phone, or iPad.