公开(公告)号：US20230303406A1

公开(公告)日：2023-09-28

申请号：US18122709

申请日：2023-03-17

Applicant: Evonik Operations GmbH

Inventor： Ryo TAKATA ,  Franz SCHMIDT ,  Seven MÜLLER ,  Christian PANZ ,  Daniel ESKEN ,  Marcel HERZOG

IPC: C01G53/00 ,  H01M10/0562 ,  H01M10/0525

CPC classification number: C01G53/44 ,  C01G53/006 ,  H01M10/0562 ,  H01M10/0525 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2300/0071

Abstract: The present invention relates to a method for making a transition metal oxide coated with an at least partially amorphous lithium-containing coating and a method for making an at least partially amorphous lithium-containing powder as well as the coated transition metal oxide and the lithium-containing powder obtainable by these methods. The present invention further relates to an electrode, electrolyte, or energy-storage device, such as a lithium-ion solid-state battery, comprising the coated transition metal oxide.

公开(公告)号：US20230307785A1

公开(公告)日：2023-09-28

申请号：US18016027

申请日：2021-07-05

Applicant: EVONIK OPERATIONS GMBH

Inventor： Yuan-Chang HUANG ,  Daniel ESKEN ,  Uwe KINZLINGER ,  Gerold SCHMIDT ,  Guido SCHARF ,  Chih-Hung LEE ,  Hung-Chun WU ,  Yu-Han LIN ,  Ting-Fang LIN

IPC: H01M50/417 ,  H01M10/0525 ,  H01M50/403 ,  H01M50/423

CPC classification number: H01M50/417 ,  H01M10/0525 ,  H01M50/403 ,  H01M50/423

Abstract: A method for manufacturing a porous membrane suitable for use as a separator of a lithium ion battery, comprising the following steps: 1) compounding a polymer and hydrophobic filler by dry mixing; 2) extruding the compounded mixture to obtain a cast film and 3) stretching the cast film to obtain the porous membrane. A porous membrane suitable for use as a separator of a lithium ion battery, a separator for a lithium ion battery, a lithium ion battery, and a device are also provided.

公开(公告)号：US20220306486A1

公开(公告)日：2022-09-29

申请号：US17638549

申请日：2020-08-26

Applicant: Evonik Operations GmbH

Inventor： Daniel ESKEN ,  Marcel HERZOG

IPC: C01G53/00 ,  H01M10/0525

Abstract: Process for producing a mixed lithium transition metal oxide usable as an active positive electrode material in lithium batteries, wherein i) a transition metal oxide, and/or a transition metal hydroxide and/or a transition metal oxyhydroxide and a pyrogenically produced zirconium dioxide and/or a pyrogenically produced mixed oxide comprising zirconium are subjected to dry mixing by means of an electric mixing unit to obtain a coated precursor compound, wherein the mixing unit has a specific electrical power of 0.05-1.5 kW per kg of the coated precursor compound; ii) the coated precursor compound is mixed with a lithium containing compound; and iii) the mixture of the coated precursor compound and the lithium containing compound is heated at a temperature between 500 and 1400° C. to obtain the mixed lithium transition metal oxide.

公开(公告)号：US20230357012A1

公开(公告)日：2023-11-09

申请号：US18024886

申请日：2021-03-19

Applicant: EVONIK OPERATIONS GMBH

Inventor： Ryo TAKATA ,  Armin WIEGAND ,  Harald ALFF ,  Franz SCHMIDT ,  Daniel ESKEN ,  Marcel HERZOG

IPC: C01B25/45 ,  H01M10/0565 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0567

CPC classification number: C01B25/45 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0565 ,  H01M10/0567 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/12

Abstract: The invention relates to a process for producing lithium zirconium phosphate by means of flame spray pyrolysis using as precursors lithium and zirconium carboxylates containing 5 to 20 carbon atoms, an organic phosphate, and a solvent containing less than 10% by weight water. Lithium zirconium phosphate obtainable by this process can be used in lithium ion batteries.

公开(公告)号：US20220289589A1

公开(公告)日：2022-09-15

申请号：US17638552

申请日：2020-08-26

Applicant: Evonik Operations GmbH

Inventor： Daniel ESKEN ,  Marcel HERZOG

IPC: C01G25/02 ,  H01M10/052 ,  C01G53/00 ,  C01G45/02 ,  C01G51/00

Abstract: Process for producing a coated mixed lithium transition metal oxide, wherein a mixed lithium transition metal oxide and a pyrogenically produced zirconium dioxide and/or a pyrogenically produced mixed oxide comprising zirconium are subjected to dry mixing by means of an electric mixing unit having a specific electrical power of 0.05-1.5 kW per kg of the mixed lithium transition metal oxide; coated mixed lithium transition metal oxide obtainable by this process; cathode for a lithium battery and lithium battery comprising such coated particles.

公开(公告)号：US20230365470A1

公开(公告)日：2023-11-16

申请号：US18227944

申请日：2023-07-30

Applicant: EVONIK OPERATIONS GMBH

Inventor： Daniel ESKEN ,  Christian HOFMANN

IPC: C04B35/01 ,  C04B40/00 ,  C04B35/628 ,  H01B1/08 ,  H01M10/052

CPC classification number: C04B35/01 ,  C04B40/0028 ,  C04B35/62821 ,  C04B35/628 ,  C04B35/62813 ,  H01B1/08 ,  H01M10/052 ,  C04B2235/3262 ,  C04B2235/3279 ,  C04B2235/3232 ,  C04B2235/3203 ,  C04B2235/3275 ,  C04B2235/3268 ,  C04B2235/3217 ,  C04B2235/5409

Abstract: Process for producing coated mixed lithium oxide particles, in which mixed lithium oxide particles and a mixture comprising aluminium oxide and titanium dioxide are subjected to dry mixing by means of a mixing unit having a specific power of 0.1-1 kW per kg of mixed lithium oxide particles and mixture used, in total, under shearing conditions.
Coated mixed lithium oxide particles comprising a mixture of aluminium oxide and titanium dioxide as coating material, wherein the aluminium oxide and the titanium dioxide are in the form of aggregated primary particles and the weight ratio of aluminium oxide to titanium dioxide is 10:90-90:10.
Battery cell comprising the coated mixed lithium oxide particles.

公开(公告)号：US20220310987A1

公开(公告)日：2022-09-29

申请号：US17656053

申请日：2022-03-23

Applicant: Evonik Operations GmbH

Inventor： Daniel ESKEN ,  Michael GLAGLA ,  Rainer BUSSAR ,  Micha KIRCHGESSNER ,  Ian KLEIN

IPC: H01M4/14 ,  H01M4/21

Abstract: Core-shell particles may be based on red lead coated with pyrogenically produced titanium dioxide and/or a pyrogenically produced aluminum oxide, and a process may prepare such core-shell particles which may be used in lead-acid batteries. The red lead may include PbO2 in a range of from 25 to 32 wt. %.

公开(公告)号：US20220289572A1

公开(公告)日：2022-09-15

申请号：US17693763

申请日：2022-03-14

Applicant: Evonik Operations GmbH

Inventor： Daniel NESS ,  Ryo TAKATA ,  Daniel ESKEN ,  Katharina DAUTH

IPC: C01B25/45 ,  H01M4/58 ,  H01M4/04 ,  H01M4/62 ,  H01M4/60 ,  H01M4/1397 ,  C09D7/61 ,  C09D7/20

Abstract: A dispersion may include 1 to 50% by weight of lithium metal phosphate of a general formula Li1+aM2−bNc(PO4)3+d, wherein M is Ti, Zr or Hf; N is a metal other than Li and M; 0≤a≤0.6, 0≤b≤0.6, 0≤c≤0.6, 0≤d≤0.8; and 50 to 99% by weight of trialkyl phosphate. A coating composition may include such a dispersion and such dispersions can be used in lithium ion batteries.