公开(公告)号：US20230357527A1

公开(公告)日：2023-11-09

申请号：US18246215

申请日：2021-09-27

Applicant: Stora Enso OYJ

Inventor： David Masson ,  Stephan Walter

IPC: C08J9/30 ,  C08J9/42 ,  C08J9/28 ,  C08J9/00

CPC classification number: C08J9/30 ,  C08J9/42 ,  C08J9/28 ,  C08J9/0061 ,  C08J2301/02 ,  C08J2497/02 ,  C08J2205/04 ,  C08J2201/0504

Abstract: The present invention relates to bio-based carbon foams, a method for their manufacturing and their use. The method comprises foaming a slurry of cellulose fibres to obtain a cellulose fibre foam, adding a biomass component to the foam, and carbonization of the biomass-cellulose fibre foam.

公开(公告)号：US20230357013A1

公开(公告)日：2023-11-09

申请号：US18246216

申请日：2021-09-27

Applicant: Stora Enso OYJ

Inventor： David Masson ,  Stephan Walter ,  Oruç Köklükaya ,  Daniel Hult Torron

IPC: C01B32/05

CPC classification number: C01B32/05 ,  C01P2006/10 ,  C01P2006/16

Abstract: The present invention relates to bio-based carbon foams, a method for their manufacturing and their use. The method comprises foaming a slurry of cellulose fibres and a biomass component to obtain a biomass-cellulose fibre foam, and carbonization of said biomass-cellulose fibre foam.

公开(公告)号：US20230261174A1

公开(公告)日：2023-08-17

申请号：US18003939

申请日：2021-07-02

Applicant: Stora Enso OYJ

Inventor： Vilhelm Olsson ,  Mario Wachtler ,  Stephan Walter ,  David Masson ,  Lena Lönnemark

IPC: H01M4/36 ,  H01M4/583 ,  H01M4/38 ,  H01M4/04 ,  H01M4/62

CPC classification number: H01M4/364 ,  H01M4/386 ,  H01M4/0471 ,  H01M4/583 ,  H01M4/625 ,  H01M2004/021

Abstract: The present disclosure relates to a method for producing a carbon-silicon composite material powder, comprising: providing a carbon-containing precursor, which is lignin; providing at least one silicon-containing active material; melt-mixing at least said carbon-containing precursor and said silicon-containing active material(s) to a melt-mixture; providing said melt-mixture in a non-fibrous form and cooling the melt- mixture to provide an isotropic intermediate composite material; subjecting said isotropic intermediate composite material to a thermal treatment, wherein said thermal treatment comprises a carbonization step to provide a carbon-silicon composite material, and subjecting said carbon-silicon composite material to pulverization to provide said carbon-silicon composite material powder. The present disclosure also relates to a carbon-silicon composite material powder obtainable by the method, a negative electrode for a non-aqueous secondary battery, such as a lithium-ion battery, comprising the carbon-silicon composite material powder, and use of the carbon-silicon composite material powder in a negative electrode of a non-aqueous secondary battery.