公开(公告)号：US20160380270A1

公开(公告)日：2016-12-29

申请号：US15038857

申请日：2014-12-22

申请人： LG Chem, Ltd.

发明人： Kil Sun LEE ,  Kwon Nam SOHN ,  Won Jong KWON ,  Seung Bo YANG ,  In Young KIM ,  Kwang Hyun YOO ,  Mi Jin LEE ,  Jin Yeong LEE

IPC分类号： H01M4/62 ,  H01M10/0525 ,  H01B1/24

CPC分类号： H01M4/625 ,  H01B1/24 ,  H01M4/0404 ,  H01M4/139 ,  H01M10/052 ,  H01M10/0525

摘要： The present invention relates to a conducting material composition capable of forming an electrode in which at least two kinds of carbon based materials are contained in a uniformly dispersed state to enable a battery such as a lithium rechargeable battery having more improved electrical and lifetime characteristics to be provided, and a slurry composition for forming an electrode of a lithium rechargeable battery and a lithium rechargeable battery using the same. The conducting material composition contains: at least two kinds of conductive carbon-based materials selected from the group consisting of carbon nano tube, graphene, and carbon black; and a dispersant containing a plurality kinds of poly aromatic hydrocarbon oxides, wherein the dispersant contains poly aromatic hydrocarbon oxides having a molecular weight of 300 to 1000 at a content of 60 wt. % or more.

摘要翻译： 本发明涉及能够形成电极的导电材料组合物，其中以均匀分散状态包含至少两种碳基材料，使得具有更好的电寿命特性的锂可再充电电池等电池可以是 以及用于形成锂可再充电电池的电极的浆料组合物和使用其的锂可再充电电池。 导电材料组合物包含：选自碳纳米管，石墨烯和炭黑中的至少两种导电性碳基材料; 含有多种聚芳香族烃氧化物的分散剂，其中分散剂含有分子量为300〜1000的聚芳香族烃氧化物，含量为60重量％。 ％ 或者更多。

公开(公告)号：US20180206366A1

公开(公告)日：2018-07-19

申请号：US15743859

申请日：2016-10-28

申请人： LG CHEM, LTD.

发明人： Se Ho PARK ,  Kwon Nam SOHN ,  Won Jong KWON ,  Seung Bo YANG

IPC分类号： H05K9/00 ,  H01F1/01

摘要： The present invention relates to a method for preparing a magnetic iron oxide-graphene composite, a magnetic iron oxide-graphene composite prepared thereby and a composition for electromagnetic wave shielding including the same, and since graphene is prepared from a stage 1-GIC using FeCl3, magnetic particles in the form of FeOx are naturally formed on the surface of graphene during the preparation process. In addition, a magnetic material is formed on the surface of graphene while the defects of graphene are minimized, and thus the magnetic iron oxide-graphene composite prepared according to the present invention can be useful as an electromagnetic wave absorber.

公开(公告)号：US20170047584A1

公开(公告)日：2017-02-16

申请号：US15307627

申请日：2015-05-08

申请人： LG CHEM,LTD.

发明人： Eui Yong HWANG ,  In Young KIM ,  Jin Yeong LEE ,  Won Jong KWON ,  Kwon Nam SOHN ,  Seung Bo YANG

IPC分类号： H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/04 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/48

摘要： Provided are a porous silicon-carbon composite, which includes a core including a plurality of active particles, a conductive material formed on at least a portion of surfaces of the active particles, first pores, and second pores, and a first shell layer which is coated on the core and includes graphene, wherein the active particles include a plurality of silicon particles, silicon oxide particles, or a combination thereof, the first pores are present in the core and are formed by agglomeration of the plurality of active particles, and the second pores are irregularly dispersed and present in the core, has an average particle diameter smaller than an average particle diameter of the active particles, and are spherical, a method of manufacturing the same, and a negative electrode and a lithium secondary battery including the porous silicon-carbon composite.

摘要翻译： 提供一种多孔硅 - 碳复合材料，其包括包含多个活性颗粒的芯，在活性颗粒表面的至少一部分上形成的导电材料，第一孔和第二孔，以及第一壳层， 涂覆在芯上并且包括石墨烯，其中活性颗粒包括多个硅颗粒，氧化硅颗粒或其组合，第一孔存在于芯中并且由多个活性颗粒的附聚形成，并且 第二孔不规则地分散存在于芯中，平均粒径小于活性粒子的平均粒径，为球状，其制造方法，负极和含有多孔的锂二次电池 硅碳复合材料。