公开(公告)号：US20210376318A1

公开(公告)日：2021-12-02

申请号：US17254559

申请日：2019-06-17

Applicant: BASF SE

Inventor： Christoph ERK ,  Thomas LETZELTER ,  Markus HOELZLE ,  Carsten SUELING

IPC: H01M4/525 ,  H01M4/505 ,  C01G53/00

Abstract: Process for modifying an electrode active material according to general formula Li1+xTM1−xO2, wherein TM contains a combination of Ni and at least one transition metal selected from Co and Mn, and, optionally, at least one metal selected from Al, Ba, and Mg and, optionally, one or more transition metals other than Ni, Co, and Mn, wherein at least 75 mole-% of TM is Ni, and x is in the range of from −0.05 to 0.2, said process comprising the steps of (a) treating said Li1+xTM1−xO2 with an aqueous medium with a pH value of at least 5 and up to 14, (b) removing said aqueous medium from treated Li1+xTM1−xO2 by way of a solid-liquid separation, wherein steps (a) and (b) are commenced with a maximum time difference of 3 minutes. In addition, the present invention is directed towards Ni-rich electrode active materials.

公开(公告)号：US20190386305A1

公开(公告)日：2019-12-19

申请号：US16509749

申请日：2019-07-12

Applicant: BASF SE

Inventor： Aleksei VOLKOV ,  Jordan LAMPERT ,  Thomas Michael RYLL ,  Ji-Yong SHIN ,  Markus HOELZLE ,  Michael EDER

IPC: H01M4/525 ,  H01M10/0567 ,  H01M10/42 ,  C01G53/00 ,  H01M4/505 ,  H01M10/0525

Abstract: Process for making a particulate material of general formula (I), Li1+x(NiaCobMncMd)1−xO2  (I) wherein the integers are defined as follows: M is selected from Al and Ti, x is in the range of from 0.015 to 0.03, a is in the range of from 0.3 to 0.6, b is in the range of from 0.05 to 0.35, c is in the range of from 0.2 to 0.5, d is in the range of from 0.001 to 0.03, with a+b+c+d=1 said process comprising the following steps: (a) co-precipitating a mixed hydroxide of nickel, cobalt and manganese from a solution of water-soluble salts of nickel, cobalt and manganese by contacting such solution with a solution of alkali metal hydroxide, (b) adding an aqueous solution of an aluminate or titanate and thereby co-precipitating a layer of a mixed hydroxide of nickel and cobalt and manganese and aluminium or titanium on the particles formed in step (a), (c) removing particles of (NiaCobMncAld)(OH)2+d or (NiaCobMncTid)(OH)2+2d so obtained and drying them in the presence of oxygen, (d) mixing the particles obtained in step (c) with at least one Li compound selected from Li2O, LiOH and Li2CO3, (e) calcining the mixture obtained according to step (d) at a temperature in the range of from 920 to 950° C.

公开(公告)号：US20180114985A1

公开(公告)日：2018-04-26

申请号：US15318887

申请日：2015-06-19

Applicant: BASF SE

Inventor： Aleksei VOLKOV ,  Jordan LAMPERT ,  Thomas Michael RYLL ,  Ji-Yong SHIN ,  Markus HOELZLE ,  Michael EDER

IPC: H01M4/525 ,  H01M10/0525 ,  H01M10/0567 ,  H01M4/505 ,  H01M10/42 ,  C01G53/00

CPC classification number: H01M4/525 ,  C01G53/006 ,  C01G53/50 ,  C01P2002/50 ,  C01P2002/88 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/505 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/4235 ,  H01M2004/028 ,  H01M2300/0025

Abstract: Li1+x(NiaCobMncMd)1−xO2   (I) Process for making a particulate material of general formula (I), wherein the integers are defined as follows: M is selected from Al and Ti, x is in the range of from 0.015 to 0.03, a is in the range of from 0.3 to 0.6, b is in the range of from 0.05 to 0.35, c is in the range of from 0.2 to 0.5, d is in the range of from 0.001 to 0.03, with a+b+c+d=1 said process comprising the following steps: (a) co-precipitating a mixed hydroxide of nickel, cobalt and manganese from a solution of water-soluble salts of nickel, cobalt and manganese by contacting such solution with a solution of alkali metal hydroxide, (b) adding an aqueous solution of an aluminate or titanate and thereby co-precipitating a layer of a mixed hydroxide of nickel and cobalt and manganese and aluminium or titanium on the particles formed in step (a), (c)removing particles of (Nia Cob Mnc Ald)(OH)2+d or (Nia Cob Mnc Tid)(OH)2−2d so obtained and drying them in the presence of oxygen, (d) mixing the particles obtained in step (c) with at least one Li compound selected from Li2O, LiOH and Li2CO3, (e) calcining the mixture obtained according to step (d) at a temperature in the range of from 920 to 950° C.