Lithium sulfide compositions for battery electrolyte and battery electrode coatings

US8871391B2 · kind B2 · utility

Assignee

• UT-BATTELLE, LLC · US

Inventors

• Chengdu Liang · Jiaocheng District, CN
• Zengcai Liu · Savoy, US
• Wujun Fu · Joplin, US
• Zhan Lin · Albany, US
• Nancy J. Dudney · Knoxville, US
• Jane Y. Howe · Oak Ridge, US
• Adam J. Rondinone · Knoxville, US

Key dates

• Filing date: Nov 26, 2013
• Grant date: Oct 28, 2014
• Expiry date: Nov 26, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/70
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Method of forming lithium-containing electrolytes are provided using wet chemical synthesis. In some examples, the lithium containing electrolytes are composed of β-Li3PS4 or Li4P2S7. The solid electrolyte may be a core shell material. In one embodiment, the core shell material includes a core of lithium sulfide (Li2S), a first shell of β-Li3PS4 or Li4P2S7, and a second shell including one of β-Li3PS4 or Li4P2S7 and carbon. The lithium containing electrolytes may be incorporated into wet cell batteries or solid state batteries.