EP 2734481 A1 20140528 - METHOD FOR PRODUCING A MOLTEN MATERIAL
Title (en)
METHOD FOR PRODUCING A MOLTEN MATERIAL
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES GESCHMOLZENEN MATERIALS
Title (fr)
PROCÉDÉ DE FABRICATION D ' UN PRODUIT FONDU
Publication
Application
Priority
- FR 1156634 A 20110721
- IB 2012053634 W 20120716
Abstract (en)
[origin: WO2013011452A1] The present invention relates to a method for manufacturing a molten material, the crystallised portion of which consists, for more than 99.3 wt %, of a single crystalline phase having the formula (Li1-aAa)1+x(G1-bJb) y[(XO4)1-dDd]zEe, where: Li is the element lithium; A is a lithium substituent selected from among the elements Na, K, H, and the mixtures thereof, wherein a is no higher than 0.2; G is selected from among the elements Fe, Mn, Ni, Co, V, and the mixtures thereof; J is a substituent of G selected from among Nb, Y, Mg, B, Ti, Cu, Cr and the mixtures thereof, wherein b is no higher than 0.5; XO4 is an oxyanion in which O designates the element oxygen and X is selected from among the elements P, S, V, Si, Nb, Mo, Al, and the mixtures thereof; D is selected from among the anions F-, OH-, CI-, and the mixtures thereof, wherein d is no higher than 0.35; E being selected from among the element F, the element Cl, the element O, the OH group, or the mixtures thereof; 0 = e = 2; -0.2 = x = 2; 0.9 = y = 2; and 1 = z = 3, said method including the following steps: a) mixing raw materials so as to form a feedstock; b) melting the feedstock until a liquid mass at a temperature Tm, which is higher than the melting temperature Tf of the molten material obtained at the end of step e), is obtained; c) cooling until said liquid mass is completely solidified, so as to obtain a molten material, the amorphous phase of which is constitutes less than 80 wt % thereof; d) optionally crushing and/or grinding and/or performing selection by particle size on said molten material; e) optionally, heat-treating the molten material at a temperature which is an increment lower than the melting temperature Tf of said molten material and which is between Tf-800°C (or 500°C if Tf-800°C is less than 500°C) and Tf-50°C, for a period of time during which the temperature is maintained at said increment and which is more than 90 minutes, in a reducing environment; and f) optionally, crushing and/or grinding and/or performing selection by particle size on said molten material.
IPC 8 full level
C03C 10/00 (2006.01); C03B 32/02 (2006.01); H01M 4/58 (2010.01)
CPC (source: EP US)
C03C 10/00 (2013.01 - EP US); H01M 4/58 (2013.01 - EP US); H01M 4/5825 (2013.01 - EP US); H01M 10/0525 (2013.01 - EP US); Y02E 60/10 (2013.01 - EP)
Citation (search report)
See references of WO 2013011452A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2013011452 A1 20130124; CN 103813992 A 20140521; CN 103813992 B 20180206; EP 2734481 A1 20140528; FR 2978137 A1 20130125; JP 2014524883 A 20140925; JP 6049713 B2 20161221; KR 20140046024 A 20140417; US 2014158933 A1 20140612; US 9620778 B2 20170411
DOCDB simple family (application)
IB 2012053634 W 20120716; CN 201280045901 A 20120716; EP 12758618 A 20120716; FR 1156634 A 20110721; JP 2014520763 A 20120716; KR 20147003573 A 20120716; US 201214233954 A 20120716