Electrolyte separators including lithium borohydride and composite electrolyte separators of lithium-stuffed garnet and lithium borohydride

US11011796B2 · kind B2 · utility

Assignee

• QUANTUMSCAPE BATTERY, INC. · US

Inventors

• Zhebo Chen · San Jose, US
• Tim Holme · San Jose, US
• Marie A. Mayer · Sunnyvale, US
• Nick Perkins · San Jose, US
• Eric Tulsky · Berkeley, US
• Cheng-Chieh Chao · San Jose, US
• Christopher Dekmezian · Campbell, US
• Shuang Li · Sunnyvale, US

Key dates

• Filing date: Oct 20, 2017
• Grant date: May 18, 2021
• Expiry date: Feb 24, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Set forth herein are compositions comprising A.(LiBH4).B.(LiX).C.(LiNH2), wherein X is fluorine, bromine, chloride, iodine, or a combination thereof, and wherein 0.1≤A≤3, 0.1≤B≤4, and 0≤C≤9 that are suitable for use as solid electrolyte separators in lithium electrochemical devices. Also set forth herein are methods of making A.(LiBH4).B.(LiX).C.(LiNH2) compositions. Also disclosed herein are electrochemical devices which incorporate A.(LiBH4).B.(LiX).C.(LiNH2) compositions and other materials.