The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2026
Filed:
Aug. 09, 2023
The Research Foundation for the State University of New York, Binghamton, NY (US);
Krystal Lee, Binghamton, NY (US);
Carrie Siu, Darien, IL (US);
Fengxia Xin, Vestal, NY (US);
M. Stanley Whittingham, Vestal, NY (US);
The Research Foundation for The State University of New York, Binghamton, NY (US);
Abstract
A lithium battery with a cathode fabricated using an improved method for slurry formulation and electrode production. The cathode comprises the epsilon polymorph of vanadyl phosphate, ε-VOPO, made from solvothermally synthesized HVOPO, and optimized to reversibly intercalate two Li-ions to reach full theoretical capacity with a coulombic efficiency of 98%. This material adopts a stable 3D tunnel structure and can extract two Li-ions per vanadium ion, giving a theoretical capacity of 305 mAh/g, with an upper charge/discharge plateau at around 4.0 V, and one lower at around 2.5 V. The ε-VOPO4 particles may be modified with niobium (Nb) to improve the cycling stability.