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. 03, 2016
Filed:
Jul. 02, 2012
Premkumar Senguttuvan, Amiens, FR;
Rosa Maria Palacin, L'Hospitalet de Llobregat, ES;
Jean-marie Tarascon, Mennecy, FR;
Premkumar Senguttuvan, Amiens, FR;
Rosa Maria Palacin, L'Hospitalet de Llobregat, ES;
Jean-Marie Tarascon, Mennecy, FR;
Abstract
The present invention relates to a negative electrode material for a sodium ion battery, and to a method for producing it. The active material of the electrode material is composed of an oxide with a structure corresponding to the layered structure of the compound NaTiO, said oxide conforming to the formula NaTi(IV)Ti(III)MO(A), in which x denotes the number of Naions inserted between the layers, per TiOstructural unit, with 0<x≦5; Ti(IV) and Ti(III) represent titanium in the oxidation states IV and III, respectively; M represents one or more elements selected from 3d transition metals and 4d transition metals; the values of x, a, b and c are such that the compound is electronically neutral in view of the oxidation state of the element or elements represented by M; and the ratio (a+b)/c is greater than 0.5. The electrode material is obtained by electrochemical reduction of an oxide NaTi(IV)'MO(B).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile