Vanadyl phosphates as high energy density cathode materials for rechargeable sodium battery

US9722247B2 · kind B2 · utility

Assignees

• TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC. · US
• The Research Foundation for The State University of New York · US

Inventors

• Ruigang Zhang · Qingdao, CN
• Fuminori Mizuno · Ann Arbor, US
• Chen Ling · Sunnyvale, US
• M. Stanley Whittingham · Fanwood, US
• Ruibo Zhang · Nanhu, CN
• Zehua Chen · Jiaozuo City, CN

Key dates

• Filing date: Jun 10, 2015
• Grant date: Aug 1, 2017
• Expiry date: Nov 20, 2035

Classification

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

Abstract

A positive electrode comprising ε-VOPO4 and/or Nax(ε-VOPO4) wherein x is a value from 0.1 to 1.0 as an active ingredient, wherein the electrode is capable of insertion and release of sodium ions and a reversible sodium battery containing the positive electrode are provided.