公开(公告)号：US20230150828A1

公开(公告)日：2023-05-18

申请号：US17988665

申请日：2022-11-16

Applicant: Solid Power Operating, Inc.

Inventor： Brian E. FRANCISCO ,  Samuel Oberwetter ,  Sean P. Culver ,  Ilya Lisenker

IPC: C01D15/00

CPC classification number: C01D15/00 ,  C01P2002/72 ,  C01P2006/80

Abstract: A process for producing a low-cost water-reactive sulfide material includes reacting a substantially anhydrous first alkali metal salt, a substantially anhydrous first sulfide compound, and a substantially anhydrous first alkali metal hydrosulfide compound in a substantially anhydrous polar solvent, providing differential solubility for a substantially high solubility second sulfide and a substantially low solubility second alkali metal salt, and forming a mixture of the high solubility second sulfide, a second alkali metal hydrosulfide, and the low solubility second alkali metal salt; removing the low solubility second alkali metal salt to isolate the supernatant including the second sulfide, and separating the polar solvent from the second sulfide and the second alkali metal hydrosulfide followed by heating to produce the second sulfide. The present disclosure provides a scalable process for production of a high purity alkali metal sulfide that is essentially free of undesired contaminants.

公开(公告)号：US20250066211A1

公开(公告)日：2025-02-27

申请号：US18811600

申请日：2024-08-21

Applicant: Solid Power Operating, Inc.

Inventor： Brian E. Francisco ,  Samuel Oberwetter ,  Hyungrak Kim

IPC: C01D15/04 ,  H01M10/0562

Abstract: The present disclosure provides novel compositions of matter and a robust one-pot process to produce solid-state electrolytes, metal sulfides, and/or metal phosphates. The metal sulfides include argyrodite-type sulfide electrolyte, and the metal phosphates include lithium phosphate.

公开(公告)号：US20240217831A1

公开(公告)日：2024-07-04

申请号：US18389627

申请日：2023-12-19

Applicant: Solid Power Operating, Inc.

Inventor： Brian E. Francisco ,  Samuel Oberwetter ,  Clint R. Bickmore

IPC: C01D15/00 ,  H01M10/0562

CPC classification number: C01D15/00 ,  H01M10/0562 ,  C01P2002/72 ,  H01M2300/008

Abstract: Described herein are methods for forming solid state electrolyte materials using a compound comprising P4Sx. The methods generally include heating the P4Sx in the presence of one or more lithium compounds to create a solid-state electrolyte.

公开(公告)号：US20240166514A1

公开(公告)日：2024-05-23

申请号：US18516915

申请日：2023-11-21

Applicant: Solid Power Operating, Inc.

Inventor： Brian E. FRANCISCO ,  Samuel Oberwetter

IPC: C01B17/22

CPC classification number: C01B17/22 ,  C01P2002/72 ,  C01P2004/51 ,  C01P2006/40

Abstract: Provided herein are methods for synthesizing sulfide-based solid electrolytes, including those with an Argyrodite phase. The methods generally comprise mixing electrolyte precursors in a blend of solvents comprising a catalytic solvent and a spectator solvent.