公开(公告)号：US10193148B2

公开(公告)日：2019-01-29

申请号：US14835715

申请日：2015-08-26

Applicant: OCI COMPANY LTD.

Inventor： Sung-Ho Jung ,  Yo-Seop Kim ,  Eun-Hye Jeong ,  Jeong-Hyun Ha

IPC: H01M4/38 ,  H01M4/583 ,  H01M4/134 ,  H01M4/62 ,  H01M10/052

Abstract: Disclosed herein are a manufacturing method of a carbon-silicon composite, the manufacturing method including: (a) preparing a silicon-carbon-polymer matrix slurry including a silicon slurry, carbon particles, a monomer of polymer, and a cross-linking agent; (b) performing a heat treatment process on the silicon-carbon-polymer matrix slurry to manufacture a silicon-carbon-polymer carbonized matrix; (c) pulverizing the silicon-carbon-polymer carbonized matrix to manufacture a silicon-carbon-polymer carbonized matrix structure; and (d) mixing the silicon-carbon-polymer carbonized matrix structure with a first carbon raw material and performing a carbonization process to manufacture a carbon-silicon composite, the carbon-silicon composite, an anode for a secondary battery manufactured by applying the carbon-silicon composite, and a secondary battery including the anode for a secondary battery.

公开(公告)号：US09981993B2

公开(公告)日：2018-05-29

申请号：US14793742

申请日：2015-07-08

Applicant: OCI COMPANY LTD.

Inventor： Eun-Hye Jeong ,  Yo-Seop Kim ,  Sung-Ho Jung ,  Jeong-Hyun Ha

IPC: H01M4/60 ,  H01M10/052 ,  C07F7/08 ,  H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587

CPC classification number: C07F7/0803 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/587 ,  H01M10/052

Abstract: Disclosed herein are a manufacturing method of a carbon-silicon composite, including: (a) preparing a slurry solution including silicon (Si)-block copolymer core-shell particles; (b) mixing the slurry solution with a carbon raw material to manufacture a mixed solution; (c) performing a primary carbonization process on the mixed solution, followed by pulverization, to manufacture a primary carbon-silicon composite; and (d) performing a secondary carbonization process on the primary carbon-silicon composite, followed by pulverization, to manufacture a secondary carbon-silicon composite, the carbon-silicon composite, an anode for a secondary battery manufactured by applying the carbon-silicon composite, and a secondary battery including the anode for a secondary battery.

公开(公告)号：US09673449B2

公开(公告)日：2017-06-06

申请号：US14334043

申请日：2014-07-17

Applicant: OCI COMPANY LTD.

Inventor： Yo-Seop Kim ,  Eun-Hye Jeong ,  Sung-Ho Jung ,  Hyung-Rak Kim

IPC: H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/13

CPC classification number: H01M4/386 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/364 ,  H01M4/587

Abstract: Silicon slurry for anode active materials of secondary batteries is provided. The silicon slurry includes silicon particles and a dispersion medium. The silicon slurry satisfies dispersion conditions of 1≦D90/D50≦2.5 and 2 nm