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:
Apr. 17, 2018
Filed:
Nov. 14, 2014
Lg Chem, Ltd., Seoul, KR;
Sj Materials Co., Ltd., Ulsan, KR;
Jung Woo Yoo, Daejeon, KR;
Mi Rim Lee, Daejeon, KR;
Yong Ju Lee, Daejeon, KR;
Eun Kyung Kim, Daejeon, KR;
Han Ho Lee, Seoul, KR;
Ji Hyun Yoon, Ulsan, KR;
Byoung Man Bang, Gyeongsangbuk-do, KR;
Chang Rae Lee, Ulsan, KR;
Il Kyo Jeong, Ulsan, KR;
Mi Kyeong Lee, Gyeongsangbuk-do, KR;
LG Chem, Ltd., , KR;
Abstract
Provided are a porous silicon-based particle including a silicon (Si) or SiO(0<x<2) particle, wherein the particle includes a plurality of nonlinear pores, and the nonlinear pores are formed as open pores in a surface of the particle, and a method of preparing the porous silicon-based particles. Porous silicon-based particles according to an embodiment of the present invention may be more easily dispersed in an anode active material slurry, may minimize side reactions with an electrolyte, and may reduce volume expansion during charge and discharge. Also, according to an embodiment of the present invention, the shape, form, and size of pores formed in the porous silicon-based particle may be controlled by adjusting the type of a metal catalyst, the concentration of the catalyst, and etching time.