公开(公告)号：US20110311875A1

公开(公告)日：2011-12-22

申请号：US13130153

申请日：2009-11-20

Applicant: Yongju Lee ,  Jeyoung Kim ,  Oujung Kwon ,  Byung Hun Oh ,  Insung Uhm ,  Seungyoun Choi

Inventor： Yongju Lee ,  Jeyoung Kim ,  Oujung Kwon ,  Byung Hun Oh ,  Insung Uhm ,  Seungyoun Choi

IPC: H01M4/485 ,  B82Y30/00

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

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.

Abstract translation: 本公开涉及一种电极活性材料，包括：（a）可与锂合金化的金属（或准金属）氧化物的第一颗粒; 和（b）包含锂和与金属（或准金属）氧化物相同的金属（或准金属））的氧化物的第二颗粒，以及包含电极活性材料的二次电池。 当电极活性材料用作负极活性材料时，在电池的初始充放电期间产生诸如氧化锂或锂金属氧化物的不可逆相的量的减少，因为在第二颗粒中已经含有锂 初始充放电，从而使阴极侧的死体积最小化，可以制造高容量电池。

公开(公告)号：US08632698B2

公开(公告)日：2014-01-21

申请号：US12670798

申请日：2008-07-25

Applicant: Jeyoung Kim ,  Taeyeon Kim ,  Seo-Jae Lee ,  Wonseok Chang ,  Seungyoun Choi

Inventor： Jeyoung Kim ,  Taeyeon Kim ,  Seo-Jae Lee ,  Wonseok Chang ,  Seungyoun Choi

IPC: H01B1/22 ,  H01B1/24 ,  H01M4/36

CPC classification number: H01B1/20 ,  H01M4/13 ,  H01M4/133 ,  H01M4/366 ,  H01M4/62 ,  H01M10/052 ,  Y02E60/122

Abstract: Disclosed is an electrode active material having a core-shell structure, which includes: (a) a core capable of intercalating and deintercalating lithium ions; and (b) a shell including a polymer or an oligomer having a glass transition temperature of 25° C. or less when impregnated with an electrolyte, wherein a surface of the core is coated with the shell. Also, an electrode manufactured by using the electrode active material and a secondary battery including the electrode are disclosed. The shell (b) suppresses the formation of an SEI layer during initial charge of a battery, and prevents initial capacity reduction. Accordingly, it is possible to achieve a high capacity battery. The electrode active material having a core-shell structure, specially a metal (loid) based electrode active material having a core-shell structure can have a slightly higher electric capacity, compared to a conventional electrode active material, specially a conventional metal (loid) based electrode active material, and can minimize gas generation during charge/discharge.

Abstract translation: 公开了具有核 - 壳结构的电极活性材料，其包括：（a）能够嵌入和脱嵌锂离子的芯; 和（b）包含聚合物或低聚物的壳体，其中浸渍有电解质的玻璃化转变温度为25℃或更低，其中芯体的表面涂覆有壳。 另外，公开了使用电极活性物质制造的电极和包含该电极的二次电池。 壳体（b）抑制在电池的初始充电期间形成SEI层，并且防止初始容量降低。 因此，可以实现高容量电池。 具有核 - 壳结构的电极活性材料，特别是具有核 - 壳结构的金属（loid）基电极活性材料可以具有比常规电极活性材料，特别是传统的金属（loid） 并且可以使充放电期间的气体产生最小化。

公开(公告)号：US08057710B2

公开(公告)日：2011-11-15

申请号：US12773516

申请日：2010-05-04

Applicant: Yongju Lee ,  Insung Uhm ,  Seungyoun Choi ,  Jeyoung Kim ,  Dong Sub Jung

Inventor： Yongju Lee ,  Insung Uhm ,  Seungyoun Choi ,  Jeyoung Kim ,  Dong Sub Jung

IPC: H01B1/08

CPC classification number: H01B1/02 ,  H01M4/134 ,  H01M4/362 ,  H01M4/366 ,  H01M4/38

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 10,000 ppm based on the total weight of the composite.

Abstract translation: 公开了可以用作二次电池的电极活性材料的复合材料，并且包括其的二次电池。 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的第一材料; 选自不能与锂合金化的金属，含有金属的化合物和含有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，其是具有比第二材料更高的导电性的至少一种金属，其中基于复合材料的总重量，第三材料的含量为10至10,000ppm。

公开(公告)号：US20100243964A1

公开(公告)日：2010-09-30

申请号：US12773516

申请日：2010-05-04

Applicant: Yongju LEE ,  Insung Uhm ,  Seungyoun Choi ,  Jeyoung Kim ,  Dong Sub Jung

Inventor： Yongju LEE ,  Insung Uhm ,  Seungyoun Choi ,  Jeyoung Kim ,  Dong Sub Jung

IPC: H01B1/02 ,  H01B1/04

CPC classification number: H01B1/02 ,  H01M4/134 ,  H01M4/362 ,  H01M4/366 ,  H01M4/38

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 10,000 ppm 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: 公开了可以用作二次电池的电极活性材料的复合材料，并且包括其的二次电池。 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的第一材料; 选自不能与锂合金化的金属，含有金属的化合物和含有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，其是具有比第二材料更高的导电性的至少一种金属，其中基于复合材料的总重量，第三材料的含量为10至10,000ppm。 在复合材料中，第三种材料增加导电性，从而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，并且使电极厚度的变化最小化。

公开(公告)号：US08546019B2

公开(公告)日：2013-10-01

申请号：US13130153

申请日：2009-11-20

Applicant: Yongju Lee ,  Jeyoung Kim ,  Oujung Kwon ,  Byung Hun Oh ,  Insung Uhm ,  Seungyoun Choi

Inventor： Yongju Lee ,  Jeyoung Kim ,  Oujung Kwon ,  Byung Hun Oh ,  Insung Uhm ,  Seungyoun Choi

IPC: H01M4/13 ,  H01M4/58

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.

Abstract translation: 本公开涉及一种电极活性材料，包括：（a）可与锂合金化的金属（或准金属）氧化物的第一颗粒; 和（b）包含锂和与金属（或准金属）氧化物相同的金属（或准金属））的氧化物的第二颗粒，以及包含电极活性材料的二次电池。 当电极活性材料用作负极活性材料时，在电池的初始充放电期间产生诸如氧化锂或锂金属氧化物的不可逆相的量的减少，因为在第二颗粒中已经含有锂 初始充放电，从而使阴极侧的死体积最小化，可以制造高容量电池。

公开(公告)号：US20110129729A1

公开(公告)日：2011-06-02

申请号：US12670798

申请日：2008-07-25

Applicant: JeYoung Kim ,  Taeyeon Kim ,  Seo-Jae Lee ,  WonSeok Chang ,  Seungyoun Choi

Inventor： JeYoung Kim ,  Taeyeon Kim ,  Seo-Jae Lee ,  WonSeok Chang ,  Seungyoun Choi

IPC: H01M4/13

CPC classification number: H01B1/20 ,  H01M4/13 ,  H01M4/133 ,  H01M4/366 ,  H01M4/62 ,  H01M10/052 ,  Y02E60/122

Abstract: Disclosed is an electrode active material having a core-shell structure, which includes: (a) a core capable of intercalating and deintercalating lithium ions; and (b) a shell including a polymer or an oligomer having a glass transition temperature of 25° C. or less when impregnated with an electrolyte, wherein a surface of the core is coated with the shell. Also, an electrode manufactured by using the electrode active material and a secondary battery including the electrode are disclosed. The shell (b) suppresses the formation of an SEI layer during initial charge of a battery, and prevents initial capacity reduction. Accordingly, it is possible to achieve a high capacity battery. The electrode active material having a core-shell structure, specially a metal (loid) based electrode active material having a core-shell structure can have a slightly higher electric capacity, compared to a conventional electrode active material, specially a conventional metal (loid) based electrode active material, and can minimize gas generation during charge/discharge.

Abstract translation: 公开了具有核 - 壳结构的电极活性材料，其包括：（a）能够嵌入和脱嵌锂离子的芯; 和（b）包含聚合物或低聚物的壳体，其中浸渍有电解质的玻璃化转变温度为25℃或更低，其中芯体的表面涂覆有壳。 另外，公开了使用电极活性物质制造的电极和包含该电极的二次电池。 壳体（b）在电池的初始充电期间抑制SEI层的形成，并且防止初始容量降低。 因此，可以实现高容量电池。 具有核 - 壳结构的电极活性材料，特别是具有核 - 壳结构的金属（loid）基电极活性材料可以具有比常规电极活性材料，特别是传统的金属（loid） 并且可以使充放电期间的气体产生最小化。

公开(公告)号：US20100323242A1

公开(公告)日：2010-12-23

申请号：US12870484

申请日：2010-08-27

Applicant: Seungyoun CHOI ,  Jeyoung Kim ,  Byung Hun Oh ,  Yongju Lee ,  Insung Uhm

Inventor： Seungyoun CHOI ,  Jeyoung Kim ,  Byung Hun Oh ,  Yongju Lee ,  Insung Uhm

IPC: H01M4/62 ,  C08G73/14 ,  C08G63/44 ,  C08F20/44 ,  C08F20/06 ,  C08F116/06 ,  H01B1/22

CPC classification number: H01M4/622 ,  H01M4/13 ,  H01M4/38 ,  H01M4/42 ,  H01M4/44 ,  H01M4/46 ,  H01M4/625 ,  H01M4/64 ,  H01M10/052

Abstract: Disclosed is an electrode binder for a secondary battery, an electrode including the electrode binder, and the secondary battery. The disclosed electrode binder for the secondary battery includes a polymer whose cohesion force with a metal (loid) electrode active material is equal to or more than 100 gf/cm, and adhesion force with an electrode current collector ranges from 0.1 gf/mm to 70 gf/mm, the metal (loid) electrode active material being capable of reversibly storing and discharging lithium, wherein the polymer includes at least one kind selected from the group including polyamide imide, polyamide, polyacrylonitrile, polyacrylic acid and polyvinyl alcohol.

Abstract translation: 公开了二次电池用电极粘合剂，包含电极粘合剂的电极和二次电池。 所公开的用于二次电池的电极粘合剂包括其与金属（电极）电极活性材料的内聚力等于或大于100gf / cm的聚合物，并且与电极集电器的粘合力范围为0.1gf / mm至70 gf / mm，所述金属（loid）电极活性物质能够可逆地储存和排出锂，其中所述聚合物包括选自聚酰胺酰亚胺，聚酰胺，聚丙烯腈，聚丙烯酸和聚乙烯醇中的至少一种。