Lithium and sodium superionic conductors

US11201349B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Zhuoying Zhu · Village of La Jolla, US
• Shyue Ping Ong · Village of La Jolla, US
• Erik Wu · Marietta, US
• Han V. Nguyen · San Diego, US
• Ying Shirley Meng · San Diego, US
• Iek Heng Chu · Village of La Jolla, US

Key dates

• Filing date: Oct 31, 2017
• Grant date: Dec 14, 2021
• Expiry date: Jun 19, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01M2300/0068
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Presented are new, earth-abundant lithium superionic conductors, Li3Y(PS4)2 and L15PS4Cl2, that emerged from a comprehensive screening of the Li—P—S and Li—M—P—S chemical spaces. Both candidates are derived from the relatively unexplored quaternary silver thiophosphates. One key enabler of this discovery is the development of a first-of-its-kind high-throughput first principles screening approach that can exclude candidates unlikely to satisfy the stringent Li+ conductivity requirements using a minimum of computational resources. Both candidates are predicted to be synthesizable, and are electronically insulating. Systems and methods according to present principles enable new, all-solid-state rechargeable lithium-ion batteries.