The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 09, 2021
Filed:
Aug. 23, 2017
Nexeon Ltd., Oxfordshire, GB;
Seung Chul Park, Daejeon, KR;
Eui Joon Song, Daejeon, KR;
Min Young Cheong, Anyang-si, KR;
Jong Hun Lee, Daejeon, KR;
Young Tai Cho, Daejeon, KR;
Yong Gil Choi, Daejeon, KR;
Seon Park, Daejeon, KR;
Sung Hwan Kang, Jinju-si, KR;
Hee Young Seo, Daejeon, KR;
Jee Hye Park, Daejeon, KR;
Tae Jin Yang, Daejeon, KR;
Nexeon Ltd., Abingdon, GB;
Abstract
The present invention relates to a method for producing silicon-based active material particles for a secondary battery and silicon-based active material particles. A method for producing silicon-based active material particles for a secondary battery according to an embodiment of the present invention may comprise: a step of providing silicon powder; a step of providing a pre-pulverization mixture in which the silicon powder is dispersed in a solvent for dispersion comprising an antioxidant; a step of applying mechanical compression and shear stress to the silicon powder of the pre-pulverization mixture to refine the silicon powder, thereby forming silicon particles having an oxygen content controlled by the antioxidant; and a step of drying the resulting material comprising the silicon particles to obtain silicon-based active material particles.