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:
Jul. 07, 2026
Filed:
Mar. 16, 2021
Dong-a University Research Foundation for Industry-academy Cooperation, Busan, KR;
Abstract
A porous silicon manufacturing method according to the present invention comprises the steps of: pretreating a silicon precursor and a heat dispersant; and conducting a thermal reduction reaction between the heat dispersant-pretreated silicon precursor and a metal reducing agent by using a rotary reaction chamber. When porous silicon manufactured by the manufacturing method is contained in a secondary battery anode active material and used in secondary batteries, the batteries exhibit high capacity and long lifespan characteristics. The present invention relates to a method for manufacturing porous silicon and a method for manufacturing a secondary battery anode active material containing the porous silicon manufactured thereby, with the aim of solving the problems with silicon materials under development for anode active materials for lithium secondary batteries, including excessive volume expansion during charge/discharge and resultant electrode fracture and lifespan shortening.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile