Invention Grant
- Patent Title: Lithium-stuffed garnet thin films and pellets having an oxyfluorinated and/or fluorinated surface and methods of making and using the thin films and pellets
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Application No.: US16756386Application Date: 2018-11-06
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Publication No.: US11600850B2Publication Date: 2023-03-07
- Inventor: Cheng-Chieh Chao , Lei Cheng , Christopher Dekmezian , Tiffany Ho , Tim Holme , Tommy Huang , Amal Mehrotra , Aram Yang
- Applicant: QuantumScape Battery, Inc.
- Applicant Address: US CA San Jose
- Assignee: QuantumScape Battery, Inc.
- Current Assignee: QuantumScape Battery, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Squire Patton Boggs (US) LLP
- International Application: PCT/US2018/059505 WO 20181106
- International Announcement: WO2019/090360 WO 20190509
- Main IPC: H01M4/02
- IPC: H01M4/02 ; H01M10/0562 ; C01G25/00 ; C09C1/40 ; H01M10/0525 ; H01M10/0585
Abstract:
Set forth herein are processes for making lithium-stuffed garnet oxides (e.g., Li7La3Zr2O12, also known as LLZO) that have passivated surfaces comprising a fluorinate and/or an oxyfluorinate species. These surfaces resist the formation of oxides, carbonates, hydroxides, peroxides, and organics that spontaneously form on LLZO surfaces under ambient conditions. Also set forth herein are new materials made by these processes.
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