US 12,139,416 B2
Fluorinated oxide based on Li and Mn
Jean-Marie Tarascon, Paris (FR); Jiwei Ma, Paris (FR); Laure Bertry, Aubervilliers (FR); Robin Amisse, Paris (FR); Marc-David Braida, Bry-sur-Marne (FR); Thierry Le Mercier, Rosny-sous-Bois (FR); and Valérie Buissette, Paris (FR)
Assigned to LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); COLLEGE DE FRANCE, Paris (FR); and SPECIALTY OPERATIONS FRANCE, Lyons (FR)
Appl. No. 17/049,658
Filed by LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); COLLEGE DE FRANCE, Paris (FR); and SPECIALTY OPERATIONS FRANCE, Lyons (FR)
PCT Filed Apr. 25, 2019, PCT No. PCT/EP2019/060659
§ 371(c)(1), (2) Date Oct. 22, 2020,
PCT Pub. No. WO2019/207065, PCT Pub. Date Oct. 31, 2019.
Claims priority of application No. 18305518 (EP), filed on Apr. 26, 2018.
Prior Publication US 2021/0070630 A1, Mar. 11, 2021
Int. Cl. H01M 4/505 (2010.01); C01G 45/12 (2006.01); C01G 51/00 (2006.01); C01G 53/00 (2006.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC C01G 45/1228 (2013.01) [C01G 51/50 (2013.01); C01G 53/50 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/623 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); C01P 2002/85 (2013.01); C01P 2002/86 (2013.01); C01P 2004/03 (2013.01); C01P 2004/64 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A process for preparation of particles of a Li-rich crystalline fluorinated layered oxide based on Mn, in which F is incorporated within a crystal of the Li-rich crystalline fluorinated layered oxide, the process consisting of incorporating fluorine into a number of oxygen vacancies of an oxygen-deficient oxide of formula (II):
[LixMnIVyNiIVzCoIVw]O2-u  (II)
wherein:
0<x<⅔;
0<y≤⅔;
z≥0;
w≥0;
⅓<y+z+w≤⅔;
0<u<⅔;
to provide the Li-rich crystalline fluorinated layered oxide of formula (I):
[LixMnIVyNin′zCon″w]O2-uFt  (I)
wherein:
0<x<⅔;
0<y≤⅔;
z≥0;
w≥0;
⅓<y+z+w≤⅔;
0<u<⅔;
0<t≤u;
x+4y+n′z+n″w=2(2−u)+t; and
n′ and n″ correspond to an average oxidation state of respectively Ni and Co, n′ ranging from +II to +IV and n″ ranging from +III to +IV, and
wherein the fluorine is provided by a fluorinating agent decomposed so as to generate a fluorinated reactive species.