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:
Mar. 22, 2016
Filed:
Oct. 23, 2009
Jean-marie Tarascon, Mennecy, FR;
Nadir Recham, Amiens, FR;
Michel Armand, Paris, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITE DE PICARDIE JULES VERNE, Amiens, FR;
Abstract
A material is made up of particles of an optionally-doped fluorosulphate. The fluorosulphate has a distorted Tavorite type structure of formula (AA')x(ZZ′)z(SO)F(I) where A=Li or Na, A′ 0 a hole or at least one doping element, Z=at least one element selected from Fe, Co and Ni, Z′=a hole or at least one doping element, the indices a, b, x, z, s, and f are selected to assure the electroneutrality of the compound and a≧0, b≧0, x≧0, z>0, s>0, f>0, the respective quantities a and b of dopant A and Z′ being such that the Tavorite type structure is preserved. The material is obtained from the precursors thereof by an ionothermal route or ceramic route in a closed reactor. The material is of particular use as an active electrode material.