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US 12,270,101 B2Granted
Formation of lithium-metal-oxygen layer and removal of lithium carbonate on solid state electrolytes
AssigneesUchicago Argonne, LLC, Northwestern University
InventorsDonghyeon Kang, Jeffrey W. Elam, Joseph A. Libera, Yujia Liang, HackSung Kim, Anil U. Mane
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Abstract
A process for forming a lithium-metal-oxygen film on a lithium SSE. A metal-ligand complex is exposed to the SSE such as for 30-600 seconds in a chemical vapor transfer reactor at a temperature of 200-350° C.
Claims18
A method, comprising:
- placing a lithium metal structure in a reactor;
- flowing a metal-ligand precursor vapor in a carrier gas, the metal-ligand precursor vapor comprising a metal selected from Al, In, Ga, and Zn and a ligand selected from the group consisting of an alkyl, through the reactor at a temperature of 250-350° C. for a continuous flow time of 30-600 seconds;
- and
- reacting the metal-ligand precursor vapor with lithium metal of the lithium metal structure, forming a lithium-metal-oxygen film on the lithium metal structure.
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A method, comprising:
- placing a lithium SSE in a reactor, the lithium SSE having an exposed coating of lithium carbonate;
- flowing a metal-ligand complex precursor vapor in a carrier gas, the precursor comprising a metal selected from Al, In, Ga, and Zn and an alkyl ligand, through the reactor at a temperature of 250-350° C. for a continuous flow time of 30-600 seconds;
- and
- reacting the metal-ligand complex with the lithium carbonate of the lithium SSE, removing a portion of the lithium carbonate from the lithium SSE.
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Dependencies are inferred from the claim text.