公开(公告)号：US08444883B2

公开(公告)日：2013-05-21

申请号：US12933629

申请日：2009-03-24

申请人： Jaephil Cho ,  Junho Eom ,  Yoon Han Chang ,  Chang-Won Park ,  Seung-Won Lee ,  Sang-Hoon Jeon ,  Byung Do Park

发明人： Jaephil Cho ,  Junho Eom ,  Yoon Han Chang ,  Chang-Won Park ,  Seung-Won Lee ,  Sang-Hoon Jeon ,  Byung Do Park

IPC分类号： H01M4/36

CPC分类号： H01M4/5825 ,  B82Y30/00 ,  C01B25/45 ,  C01G51/42 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/84 ,  C01P2006/40 ,  H01M4/366 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0525

摘要： A method for preparing a cathode active material for a lithium secondary battery is provided. The preparing method includes: adding a phosphorus compound to a transition metal oxide dispersion liquid to prepare a coating liquid; drying the coating liquid to prepare a powder including phosphorus oxide coated on the surface of the transition metal oxide; and dry-mixing the powder coated with the phosphorus oxide with a lithium intercalation compound, and then firing the mixture to form a solid solution compound of L1-M1-M2-P—O (where M1 is a transition metal derived from transition metal oxide, and M2 is a metal derived from lithium intercalation compound) on the surface of the lithium intercalation compound. The method for preparing a cathode active material for a lithium secondary battery simplifies the conventional preparing process to save process cost, and it provides comparable electrochemical characteristics to a cathode active material obtained from a wet process.

摘要翻译： 提供了制备锂二次电池用正极活性物质的方法。 该制备方法包括：向过渡金属氧化物分散液中加入磷化合物以制备涂布液; 干燥涂布液以制备包含在过渡金属氧化物表面上的氧化磷的粉末; 将含有氧化磷的粉末与锂嵌入化合物进行干混，然后烧成该混合物以形成L1-M1-M2-PO（其中M1为过渡金属氧化物的过渡金属）和 M2是由锂嵌入化合物衍生的金属）在锂嵌入化合物的表面上。 制备用于锂二次电池的正极活性材料的方法简化了常规的制备方法以节省工艺成本，并且与从湿法获得的阴极活性材料提供了可比较的电化学特性。

公开(公告)号：US20120256123A1

公开(公告)日：2012-10-11

申请号：US13524573

申请日：2012-06-15

申请人： Jaephil CHO ,  Youn-Han CHANG ,  Sang-Hoon JEON ,  Hyun-Jung LEE

发明人： Jaephil CHO ,  Youn-Han CHANG ,  Sang-Hoon JEON ,  Hyun-Jung LEE

IPC分类号： H01M4/525

CPC分类号： H01M4/5825 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

摘要： The present invention relates to a positive active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same. More particularly, the present invention relates to a positive active material for a rechargeable lithium battery including a compound that can reversibly intercalate/deintercalate lithium and a lithium metal phosphate produced through binding with lithium of the compoound, the lithium metal phosphate existing from the surface of the compound to a predetermined depth, a method of preparing the positive active material, and a rechargeable lithium battery having the positive active material. The positive active material can accomplish excellent cycle-life characteristic and also, suppress battery swelling at a high temperature.

摘要翻译： 本发明涉及一种用于可再充电锂电池的正极活性材料及其制备方法，以及包含该锂二次电池的可再充电锂电池。 更具体地说，本发明涉及一种用于可再充电锂电池的正极活性材料，其包括可逆地插入/脱嵌锂的化合物和通过与所述组合物的锂结合而产生的锂金属磷酸盐，所述锂金属磷酸盐从 化合物至预定深度，制备正极活性物质的方法，以及具有正极活性物质的可再充电锂电池。 正极活性物质可以实现优异的循环寿命特性，并且还抑制高温下的电池膨胀。

公开(公告)号：US20110076565A1

公开(公告)日：2011-03-31

申请号：US12655034

申请日：2009-12-22

申请人： Jaephil Cho ,  Mi Hee Park

发明人： Jaephil Cho ,  Mi Hee Park

IPC分类号： H01M4/58 ,  B05D5/12

CPC分类号： H01M4/0402 ,  H01M4/0473 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/38 ,  H01M4/386 ,  H01M4/387 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  Y02E60/122

摘要： The present invention provides a negative active material for a rechargeable lithium battery, including an inner layer including a material being capable of doping and dedoping lithium, a carbon layer outside the inner layer, and an outer layer disposed on the carbon layer and including a material being capable of doping and dedoping lithium. The materials being capable of doping and dedoping lithium included in the inner layer and in the outer layer may be the same or different from each other.

摘要翻译： 本发明提供了一种用于可再充电锂电池的负极活性材料，其包括内层，该内层包括能够掺杂和去掺杂锂的材料，内层外侧的碳层和设置在碳层上的外层，并且包括材料 能够掺杂和去掺杂锂。 能够掺杂和去除包含在内层和外层中的锂的材料可以彼此相同或不同。

公开(公告)号：US20080286656A1

公开(公告)日：2008-11-20

申请号：US11937066

申请日：2007-11-08

申请人： Jaephil CHO ,  Youn-Han Chang ,  Jin-Young Kim

发明人： Jaephil CHO ,  Youn-Han Chang ,  Jin-Young Kim

IPC分类号： H01M4/58 ,  H01M10/00 ,  H01M4/62

CPC分类号： H01M4/485 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/027 ,  Y02T10/7011

摘要： A negative active material for a lithium secondary battery according to an embodiment of the present invention includes a core material including an inorganic particulate that is capable of forming a compound by a reversible reaction with lithium, and a surface-treatment layer disposed on the surface of the core material. The surface-treatment layer includes a metal having electronic conductivity of 103 S/cm or more. The negative active material can improve high-rate performance of a lithium secondary battery.

摘要翻译： 根据本发明的一个实施方案的用于锂二次电池的负极活性材料包括芯材，其包括能够通过与锂的可逆反应形成化合物的无机颗粒和设置在锂表面的表面处理层 核心材料。 表面处理层包括具有10 3 S / cm以上的电子导电性的金属。 负极活性物质可以提高锂二次电池的高速率性能。

公开(公告)号：US09660254B2

公开(公告)日：2017-05-23

申请号：US14399333

申请日：2012-08-31

申请人： Soojin Park ,  Sin Ho Choi ,  Byoung Man Bang ,  Jaephil Cho

发明人： Soojin Park ,  Sin Ho Choi ,  Byoung Man Bang ,  Jaephil Cho

IPC分类号： H01M4/04 ,  H01M4/134 ,  H01M4/38 ,  H01M10/052 ,  H01M4/02

CPC分类号： H01M4/0471 ,  H01M4/0402 ,  H01M4/134 ,  H01M4/38 ,  H01M4/386 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/027 ,  Y02P70/54

摘要： The present invention relates to a method for preparing a silicon-based negative electrode active material, a negative electrode active material for a lithium secondary battery, and a lithium secondary battery comprising the same. More particularly, the method for preparing the silicon-based negative electrode active material comprises: preparing a porous silica (SiO2) and a thin metal film; coating the porous silica onto the thin metal film; reducing the porous silica to a porous silicon by performing heat-treatment of the thin metal film and the porous silica; and obtaining the porous silicon.

公开(公告)号：US09257701B2

公开(公告)日：2016-02-09

申请号：US12234268

申请日：2008-09-19

申请人： Jaephil Cho

发明人： Jaephil Cho

IPC分类号： H01M4/505 ,  H01M4/485 ,  H01M4/525

CPC分类号： H01M4/505 ,  H01M4/485 ,  H01M4/525 ,  Y02E60/122

摘要： The present invention relates to a positive active material for an electrochemical cell including a compound having a nano-shape and represented by the following Formula 1. Lix[Li1-y-zM1yM2z]O2-αDα  [Formula 1] wherein, 0.8≦x≦1.1, 0≦y≦0.5, 0≦z≦0.5, and 0≦α≦0.05, M1 and M2 are independently selected from transition elements, and D is selected from the group consisting of O, F, S, P, and combinations thereof. The positive active material of the present invention has high reversible capacity and an excellent cycle life characteristic, and in particular, an excellent cycle life characteristic at a high rate.

摘要翻译： 本发明涉及一种用于电化学电池的正极活性材料，其包括具有纳米形状并由下式1表示的化合物.Lix [Li1-y-zM1yM2z] O2-αDα[式1]其中，0.8＆nlE; x＆ ; 1.1,0和nlE; y＆nlE; 0.5,0和nlE; z和nlE; 0.5,0和nlE;α和nlE; 0.05，M1和M2独立地选自过渡元素，D选自O，F，S，P和 其组合。 本发明的正极活性物质具有高的可逆容量和优异的循环寿命特性，特别是高速率的优异的循环寿命特性。

公开(公告)号：US08669008B2

公开(公告)日：2014-03-11

申请号：US13239912

申请日：2011-09-22

申请人： Jaephil Cho ,  Jae-Bum Choo ,  Byung-Hee Han ,  Hyun-Jung Kim ,  Ki-Tae Kim ,  Je-Young Kim

发明人： Jaephil Cho ,  Jae-Bum Choo ,  Byung-Hee Han ,  Hyun-Jung Kim ,  Ki-Tae Kim ,  Je-Young Kim

IPC分类号： H01M4/58 ,  H01M4/38 ,  H01M4/04 ,  B82B3/00 ,  H01M10/058

CPC分类号： H01M4/366 ,  H01M4/133 ,  H01M4/134 ,  H01M4/386 ,  H01M4/387 ,  H01M4/40 ,  H01M4/48 ,  H01M4/587 ,  H01M10/0525 ,  Y02E60/122

摘要： The present invention relates to negative-electrode active material for rechargeable lithium battery comprising: a core comprising material capable of doping and dedoping lithium; and, a carbon layer formed on the surface of the core, wherein the carbon layer has a three dimensional porous structure comprising nanopores regularly ordered on the carbon layer with a pore wall of specific thickness placed therebetween.

摘要翻译： 本发明涉及用于可再充电锂电池的负极活性材料，其包括：包含能够掺杂和去掺杂锂的材料的芯; 以及形成在所述芯的表面上的碳层，其中所述碳层具有三维多孔结构，所述三维多孔结构包含在碳层上规则排列的纳米孔，其间具有特定厚度的孔壁。

公开(公告)号：US20120064408A1

公开(公告)日：2012-03-15

申请号：US12909934

申请日：2010-10-22

申请人： Hyun-Kon Song ,  Myeong-Hee Lee ,  Jin-Young Kim ,  Soojin Park ,  Jaephil Cho

发明人： Hyun-Kon Song ,  Myeong-Hee Lee ,  Jin-Young Kim ,  Soojin Park ,  Jaephil Cho

IPC分类号： H01M4/485 ,  H01M4/90 ,  H01M4/525 ,  H01M4/583 ,  H01M4/52

CPC分类号： H01M4/625 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/5825 ,  H01M10/0525

摘要： Provided is a positive active material for a lithium rechargeable battery that includes primary particles including a compound being capable of intercalating and deintercalating lithium, and secondary particles including the primary particles gathered with one another, wherein the secondary particles have a void core structure. A method of preparing the same and a lithium rechargeable battery including the same are also provided.

摘要翻译： 提供了一种锂可再充电电池的正极活性材料，其包括一次粒子，其包括能够嵌入和脱嵌锂的化合物，以及包含彼此聚集的一次粒子的二次粒子，其中二次粒子具有空心核心结构。 还提供了制备该方法和包含该锂二次电池的锂可再充电电池的方法。

公开(公告)号：US20080003504A1

公开(公告)日：2008-01-03

申请号：US11763750

申请日：2007-06-15

申请人： Jaephil Cho ,  Youn-Han Chang ,  Sang-Hoon Jeon ,  Hyun-Jung Lee

发明人： Jaephil Cho ,  Youn-Han Chang ,  Sang-Hoon Jeon ,  Hyun-Jung Lee

IPC分类号： H01M4/58 ,  H01M4/50 ,  H01M4/52

CPC分类号： H01M4/5825 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

摘要： The present invention relates to a positive active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same. More particularly, the present invention relates to a positive active material for a rechargeable lithium battery including a compound that can reversibly intercalate/deintercalate lithium and a lithium metal phosphate produced through binding with lithium of the compound, the lithium metal phosphate existing from the surface of the compound to a predetermined depth, a method of preparing the positive active material, and a rechargeable lithium battery having the positive active material. The positive active material can accomplish excellent cycle-life characteristic and also, suppress battery swelling at a high temperature.

摘要翻译： 本发明涉及一种用于可再充电锂电池的正极活性材料及其制备方法，以及包含该锂二次电池的可再充电锂电池。 更具体地说，本发明涉及一种用于可再充电锂电池的正极活性材料，其包括可逆地插入/脱嵌锂的化合物和通过与该化合物的锂结合产生的锂金属磷酸盐，从表面上存在的锂金属磷酸盐 化合物至预定深度，制备正极活性物质的方法，以及具有正极活性物质的可再充电锂电池。 正极活性物质可以实现优异的循环寿命特性，并且还抑制高温下的电池膨胀。

公开(公告)号：US20120094181A1

公开(公告)日：2012-04-19

申请号：US13378729

申请日：2010-06-17

申请人： Ki-Tae Kim ,  Soon-Ho Ahn ,  Je-Young Kim ,  Jaephil Cho ,  Mi-Hee Park

发明人： Ki-Tae Kim ,  Soon-Ho Ahn ,  Je-Young Kim ,  Jaephil Cho ,  Mi-Hee Park

IPC分类号： H01M4/58 ,  B05D3/02 ,  H01M4/04

CPC分类号： H01M4/38 ,  H01M4/134 ,  H01M4/366 ,  H01M4/386 ,  H01M4/628 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54

摘要： The present invention relates to negative-electrode active material for a lithium secondary battery exhibiting excellent capacity property and cycle life property, a method of preparing the same, and a lithium secondary battery using the negative-electrode active material, wherein the negative-electrode active material for a lithium secondary battery comprises a nanotube having a tube shape defined by an outer wall with a thickness of nanoscale, the outer wall of the nanotube comprises at least one non-carbonaceous material selected from the group consisting of silicon, germanium and antimony, and an amorphous carbon layer with a thickness of 5 nm or less is formed on the outer wall of the nanotube.

摘要翻译： 本发明涉及具有优异的容量性能和循环寿命性能的锂二次电池用负极活性物质及其制备方法以及使用负极活性物质的锂二次电池，其中负极活性物质 锂二次电池的材料包括具有由外壁厚度为纳米尺度限定的管形状的纳米管，纳米管的外壁包含至少一种选自硅，锗和锑的非碳质材料， 并且在纳米管的外壁上形成厚度为5nm以下的无定形碳层。