公开(公告)号：US20250074770A1

公开(公告)日：2025-03-06

申请号：US18818303

申请日：2024-08-28

Applicant: Solid Power Operating, Inc.

Inventor： Brian E. Francisco ,  Samuel M. Oberwetter ,  Benjamin A. Carlson

IPC: C01B17/30

Abstract: Provided herein are methods of preparing Li2S. The methods generally include combining an alkaline metal sulfide, a lithium salt, an alcohol, and a hydrocarbon to form a mixture. A reaction forms the Li2S. A dense solvent is then added to the mixture and the Li2S is isolated from the mixture.

公开(公告)号：US20250074781A1

公开(公告)日：2025-03-06

申请号：US18818374

申请日：2024-08-28

Applicant: Solid Power Operating, Inc.

Inventor： Brian E. Francisco ,  Samuel M. Oberwetter ,  Benjamin A. Carlson

IPC: C01D15/00

Abstract: Provided herein are methods for making Li2S. The method includes combining metal polysulfides, metal sulfides, metal salts, elemental sulfur in a solvent to form a mixture and isolating Li2S from the mixture. Provided herein are also methods for purifying the isolated Li2S forming a high-purity Li2S. Further provided herein are methods for making solid-state electrolytes.