Lithium, phosphorus, sulfur, and iodine containing electrolyte and catholyte compositions, electrolyte membranes for electrochemical devices, and annealing methods of making these electrolytes and catholytes

US11984551B2 · kind B2 · utility

Assignee

• QUANTUMSCAPE BATTERY, INC. · US

Inventors

• Tim Holme · San Jose, US
• Kim Van Berkel · Mountain View, US
• William Hudson · San Jose, US
• Kian Kerman · San Jose, US
• Sunil Mair · San Jose, US
• Amal Mehrotra · San Jose, US
• Zhebo Chen · San Jose, US

Key dates

• Filing date: Jul 19, 2022
• Grant date: May 14, 2024
• Expiry date: Jul 19, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

The present disclosure sets forth battery components for secondary and/or traction batteries. Described herein are new solid-state lithium (Li) conducting electrolytes including monolithic, single layer, and bi-layer solid-state sulfide-based lithium ion (Li+) conducting catholytes or electrolytes. These solid-state ion conductors have particular chemical compositions which are arranged and/or bonded through both crystalline and amorphous bonds. Also provided herein are methods of making these solid-state sulfide-based lithium ion conductors including new annealing methods. These ion conductors are useful, for example, as membrane separators in rechargeable batteries.