Garnet materials for Li secondary batteries and methods of making and using garnet materials

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United States of America Patent

PATENT NO 9806372
SERIAL NO

14531929

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Abstract

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Disclosed herein are garnet material compositions, e.g., lithium-stuffed garnets and lithium-stuffed garnets doped with alumina, which are suitable for use as electrolytes and catholytes in solid state battery applications. Also disclosed herein are lithium-stuffed garnet thin films having fine grains therein. Also disclosed herein are methods of making and using lithium-stuffed garnets as catholytes, electrolytes and/or anolytes for all solid state lithium rechargeable batteries. Also disclosed herein are electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also disclosed herein are methods for preparing dense thin (<50 um) free standing membranes of an ionically conducting material for use as a catholyte, electrolyte, and, or, anolyte, in an electrochemical device, a battery component (positive or negative electrode materials), or a complete solid state electrochemical energy storage device. Also disclosed herein are sintering techniques, e.g., for heating and/or field assisted (FAST) sintering, for solid state energy storage devices and the components thereof.

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Patent Owner(s)

Patent OwnerAddress
QUANTUMSCAPE BATTERY INC1730 TECHNOLOGY DRIVE SAN JOSE CA 95110

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choi, Dong Hee Anna San Jose, US 21 600
Donnelly, Niall St. Paul, US 64 1478
Holme, Tim Mountain View, US 86 2095
Hudson, Will Belmont, US 30 757
Iyer, Sriram Cupertino, US 60 1237
Karpenko, Oleh San Jose, US 32 730
Kerman, Kian San Jose, US 17 472
Singh, Mohit Santa Clara, US 68 1574
Winoto, Adrian San Francisco, US 35 1333

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