公开(公告)号：EP2360759B1

公开(公告)日：2017-07-12

申请号：EP09827755.1

申请日：2009-11-20

Applicant: LG Chem, Ltd.

Inventor： OH, Byung Hun ,  LEE, Yongju ,  KIM, Jeyoung ,  KWON, Oujung ,  UHM, Insung ,  CHOI, Seungyoun

IPC: H01M4/48 ,  H01M4/04 ,  H01M10/05 ,  H01M4/485 ,  H01M10/052 ,  H01M6/50 ,  H01M4/36 ,  C01G29/00 ,  C01G30/00 ,  C01G13/00 ,  C01G15/00 ,  C01G17/00 ,  C01G9/00

CPC classification number: H01M10/052 ,  C01G9/00 ,  C01G13/00 ,  C01G15/00 ,  C01G17/00 ,  C01G29/00 ,  C01G30/00 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2006/40 ,  H01M4/362 ,  H01M4/483 ,  H01M4/485 ,  H01M6/5088 ,  H01M2004/027

公开(公告)号：EP2416410A2

公开(公告)日：2012-02-08

申请号：EP10759012.7

申请日：2010-03-30

Applicant: LG Chem, Ltd.

Inventor： LEE, Yongju ,  UHM, Insung ,  CHOI, Seungyoun ,  KIM, Jeyoung ,  JUNG, Dong Sub

IPC: H01M4/52 ,  H01M4/38 ,  H01M4/58

CPC classification number: H01M4/366 ,  H01M4/362 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/625 ,  H01M4/626 ,  H01M10/0525

Abstract: Disclosed are a composite which can be used as an electrode active material for a secondary battery, and the secondary battery comprising the same. The composite includes: a first material selected from the group consisting of metals and metalloids capable of being reversibly alloyed with lithium; a second material selected from the group consisting of metals incapable of being alloyed with lithium, compounds containing the metals, and compounds containing metals or metalloids capable of being irreversibly alloyed with lithium; and a third material which is at least one kind of metal having a higher electrical conductivity than the second material, wherein a content of the third material ranges from 10 to 10,000ppm based on the total weight of the composite. In the composite, the third material increases the electrical conductivity, thereby forming an electrical conducting path between materials within the composite. This allows the volume of a battery to be uniformly changed during the charge/discharge. Thus, when the composite is used as an electrode active material for a secondary battery, it is possible to improve a life characteristic of the battery, and minimize a change in a thickness of the electrode.

Abstract translation: 公开了可用作二次电池的电极活性材料的复合材料，以及包含该复合材料的二次电池。 复合材料包括：选自能够与锂可逆地合金化的金属和准金属组的第一材料; 选自不能与锂合金的金属，含有金属的化合物和含有能够与锂不可逆地合金化的金属或准金属的化合物的第二种材料; 以及第三材料，其是比第二材料具有更高导电性的至少一种金属，其中第三材料的含量基于复合材料的总重量为10至10,000ppm。 在复合材料中，第三种材料增加导电性，由此在复合材料内的材料之间形成导电路径。 这允许在充电/放电期间电池的体积被均匀地改变。 因此，当复合材料用作二次电池的电极活性材料时，可以提高电池的寿命特性，并且使电极的厚度变化最小化。

公开(公告)号：EP2360759A2

公开(公告)日：2011-08-24

申请号：EP09827755.1

申请日：2009-11-20

Applicant: LG Chem, Ltd.

Inventor： OH, Byung Hun ,  LEE, Yongju ,  KIM, Jeyoung ,  KWON, Oujung ,  UHM, Insung ,  CHOI, Seungyoun

IPC: H01M4/48 ,  H01M4/04 ,  H01M10/05

CPC classification number: H01M10/052 ,  C01G9/00 ,  C01G13/00 ,  C01G15/00 ,  C01G17/00 ,  C01G29/00 ,  C01G30/00 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2006/40 ,  H01M4/362 ,  H01M4/483 ,  H01M4/485 ,  H01M6/5088 ,  H01M2004/027

Abstract: The disclosure relates to an electrode active material including: (a) first particulate of a metal (or metalloid) oxide alloyable with lithium; and (b) second particulate of an oxide containing lithium and the same metal (or metalloid) as that of the metal (or metalloid) oxide, and to a secondary battery including the electrode active material. When the electrode active material is used as an anode active material, reduced amounts of an irreversible phase such as a lithium oxide or a lithium metal oxide are produced during initial charge-discharge of a battery since lithium is already contained in the second particulate before the initial charge-discharge, and thus a dead volume on the side of the cathode can be minimized and a high-capacity battery can be fabricated.

公开(公告)号：EP2416410B1

公开(公告)日：2018-10-24

申请号：EP10759012.7

申请日：2010-03-30

Applicant: LG Chem, Ltd.

Inventor： LEE, Yongju ,  UHM, Insung ,  CHOI, Seungyoun ,  KIM, Jeyoung ,  JUNG, Dong Sub

IPC: H01M4/36 ,  H01M4/52 ,  H01M4/38 ,  H01M4/58 ,  H01M4/485 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/362 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/625 ,  H01M4/626 ,  H01M10/0525

Abstract: Disclosed are a composite which can be used as an electrode active material for a secondary battery, and the secondary battery comprising the same. The composite includes: a first material selected from the group consisting of metals and metalloids capable of being reversibly alloyed with lithium; a second material selected from the group consisting of metals incapable of being alloyed with lithium, compounds containing the metals, and compounds containing metals or metalloids capable of being irreversibly alloyed with lithium; and a third material which is at least one kind of metal having a higher electrical conductivity than the second material, wherein a content of the third material ranges from 10 to 10,000ppm based on the total weight of the composite. In the composite, the third material increases the electrical conductivity, thereby forming an electrical conducting path between materials within the composite. This allows the volume of a battery to be uniformly changed during the charge/discharge. Thus, when the composite is used as an electrode active material for a secondary battery, it is possible to improve a life characteristic of the battery, and minimize a change in a thickness of the electrode.