公开(公告)号：US20240010495A1

公开(公告)日：2024-01-11

申请号：US18030295

申请日：2021-10-06

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Michal TULODZIECKI ,  Jean-Sébastien BRIDEL ,  Sul-Hee MIN

IPC: C01B32/05

CPC classification number: C01B32/05 ,  C01P2002/08 ,  C01P2004/51 ,  C01P2006/12 ,  C01P2006/90

Abstract: A powder of carbonaceous matrix particles with silicon-based sub-particles dispersed therein, wherein the particles have a harmonic mean value of their average Vickers hardness value and their average elastic modulus value, both values of hardness and elasticity being measured by nanoindentation and expressed in MPa, being superior or equal to 7000 MPa and inferior or equal to 20000 MPa.

公开(公告)号：US20220352493A1

公开(公告)日：2022-11-03

申请号：US17767107

申请日：2020-10-05

Applicant: UMICORE

Inventor： Boaz MOEREMANS ,  Kun FENG ,  Michal TULODZIECKI ,  Jean-Sébastien BRIDEL ,  Nicolas MARX ,  Stijn PUT

IPC: H01M4/131 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395

Abstract: A powder for use in a negative electrode of a battery, said powder comprising particles, wherein the particles comprise a carbonaceous matrix material and silicon-based domains dispersed in the carbonaceous matrix material, wherein the particles further comprise pores wherein at least 1000 cross-sections of pores comprised in a cross-section of the powder satisfy optimized conditions of size and size distribution, allowing the battery containing such a powder to achieve a superior cycle life and a production method of such a powder.