公开(公告)号：US11862784B2

公开(公告)日：2024-01-02

申请号：US16626939

申请日：2018-06-22

Applicant: BASF SE

Inventor： Michael Metzger ,  Hans Beyer ,  Johannes Sicklinger ,  Daniel Pritzl ,  Benjamin Strehle ,  Hubert Gasteiger ,  Hadar Sclar ,  Evan Erickson ,  Francis Amalraj Susai ,  Judith Grinblat ,  Doron Aurbach ,  Boris Markovsky

IPC: H01M4/04 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  C01G53/00 ,  C01G45/12 ,  H01M10/052

CPC classification number: H01M4/0471 ,  C01G45/125 ,  C01G53/50 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  C01P2004/82 ,  C01P2006/12 ,  H01M10/052

Abstract: A process for making a cathode active material for a lithium ion battery is described. The process includes (a) a step of synthesizing a mixed oxide of formula Li1+xTM1−xO2 at a temperature ranging from 750 to 1000° C. in an oxidizing atmosphere, where TM is a combination of two or more transition metals of Mn, Co and Ni and, optionally, at least one more metal of Ba, Al, Ti, Zr, W, Fe, Cr, K, Mo, Nb, Mg, Na and V, and x is a number ranging from zero to 0.2, (b) a step of cooling down the material obtained from step (a) to a temperature ranging from 100 to 400° C., (c) a step of adding at least one reactant of BF3, SO2 and SO3 at the temperature of 100 to 400° C., and (d) a step of cooling down to a temperature of 50° C. or below.

公开(公告)号：US20150263386A1

公开(公告)日：2015-09-17

申请号：US14439907

申请日：2013-10-29

Applicant: BASF SE

Inventor： Elena Markevich ,  Ronit Sharabi ,  Katia Fridman ,  Gregory Salitra ,  Doron Aurbach ,  Ran Elazari

IPC: H01M10/0569 ,  H01M4/525 ,  H01M4/505 ,  H01M4/136 ,  H01M10/058 ,  H01M10/0567 ,  H01M4/134 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/58

CPC classification number: H01M10/0569 ,  H01M4/131 ,  H01M4/134 ,  H01M4/136 ,  H01M4/386 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/058 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0034 ,  H01M2300/0037 ,  Y10T29/49108

Abstract: A lithium ion secondary battery comprising: (i) a cathode comprising a cathode active material that can reversibly oclude and release lithium ions wherein the upper cut-off voltage for the cathode during charging against Li/Li+ is of at least 4.4 V, preferably of at least 4.5 V and more preferred of at least 4.6 V; (ii) an anode comprising an anode active material selected from silicon; and (iii) a non-aqueous electrolyte comprising at least one lithium salt and at least one non-aqueous organic solvent selected from fluorinated carbonates.

Abstract translation: 一种锂离子二次电池，包括：（i）包含能够可逆地吸留和释放锂离子的阴极活性材料的阴极，其中在对Li / Li +充电期间阴极的上限截止电压为至少4.4V，优选为 至少4.5V，更优选至少4.6V; （ii）阳极，其包含选自硅的阳极活性材料; 和（iii）包含至少一种锂盐和至少一种选自氟化碳酸酯的非水有机溶剂的非水电解质。