公开(公告)号：US20110135972A1

公开(公告)日：2011-06-09

申请号：US12917631

申请日：2010-11-02

申请人： Jens M. Paulsen ,  Songhun Yoon ,  Hong-Kyu Park

发明人： Jens M. Paulsen ,  Songhun Yoon ,  Hong-Kyu Park

IPC分类号： H01M16/00 ,  H02J7/00

CPC分类号： H01M10/441 ,  H02J7/0013 ,  Y02E60/12

摘要： Disclosed herein is a battery system including two or more kinds of cell lines having different charge and discharge characteristics, wherein each cell line includes one or more battery cells connected in series with each other. In the battery system according to the present invention, the battery cells of at least one cell line exhibit a high-rate charge characteristic, whereas the battery cells of at least another cell line exhibit a high-rate discharge characteristic. Consequently, the high-rate charge and discharge characteristics are improved, and the balance between the charge and discharge characteristics is maintained, whereby the battery system according to the present invention is used as a power source having a high power.

摘要翻译： 这里公开了包括具有不同充电和放电特性的两种或更多种细胞系的电池系统，其中每个电池线包括彼此串联连接的一个或多个电池单元。 在根据本发明的电池系统中，至少一个电池线路的电池单元呈现高速率充电特性，而至少另一个电池线路的电池单元表现出高速率放电特性。 因此，提高了高速率充放电特性，并且保持了充放电特性之间的平衡，由此将根据本发明的电池系统用作具有高功率的电源。

公开(公告)号：US07901813B2

公开(公告)日：2011-03-08

申请号：US11651463

申请日：2007-01-10

申请人： Hong-Kyu Park ,  Jeh-Won Choi ,  Yeon-Hee Lee ,  Young-Tack An ,  Hyeong-Jin Kim

发明人： Hong-Kyu Park ,  Jeh-Won Choi ,  Yeon-Hee Lee ,  Young-Tack An ,  Hyeong-Jin Kim

IPC分类号： H01M6/16 ,  C07C33/34 ,  C07C35/00

CPC分类号： H01M10/4235 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0567 ,  H01M2300/0025

摘要： The present invention relates to a non-aqueous electrolyte additive for improving safety and a lithium secondary battery comprising the same, and more particularly to a non-aqueous electrolyte additive that can improve cycle life and safety properties of a lithium ion secondary battery. According to the present invention, an organometallic compound represented by the Chemical Formula 1 is added to a non-aqueous electrolyte of a battery as an additive, and thus if a battery voltage is out of normal operation voltage range due to a short circuit and overcharge of a battery, etc., the non-aqueous electrolyte additive decomposes and a part of the decomposed additive polymerizes to form an insulating film on a cathode surface, and a part of the metal reacts with an insulating film formed on a cathode surface to improve thermal stability of the battery, thereby improving safety of the battery.

摘要翻译： 本发明涉及一种用于提高安全性的非水电解质添加剂和包含该非水电解质添加剂的锂二次电池，更具体地说涉及一种能够改善锂离子二次电池的循环寿命和安全性能的非水电解质添加剂。 根据本发明，将由化学式1表示的有机金属化合物作为添加剂添加到电池的非水电解质中，因此如果由于短路和过充电而导致电池电压超出正常工作电压范围 的电池等，非水电解质添加剂分解，一部分分解添加剂聚合，在阴极表面形成绝缘膜，一部分金属与阴极表面形成的绝缘膜反应，从而提高 电池的热稳定性，从而提高电池的安全性。

公开(公告)号：US07648693B2

公开(公告)日：2010-01-19

申请号：US11104734

申请日：2005-04-13

申请人： Jens M Paulsen ,  Hong-Kyu Park ,  Yong Hoon Kwon

发明人： Jens M Paulsen ,  Hong-Kyu Park ,  Yong Hoon Kwon

IPC分类号： C01D1/02 ,  H01M4/40

CPC分类号： C01G53/006 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/77 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2006/40 ,  C01P2006/80 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y02P20/129

摘要： The present invention provides a powderous lithium transition metal oxide with the composition as represented by the below Formula and prepared by solid state reaction in air from a mixed transition metal precursor and Li2CO3, with being practically free of Li2CO3 impurity: LixMyO2 wherein M=M′1−kAk, where M′=Ni1−a−b(Ni1/2Mn1/2)aCob on condition of 0.65≦a+b≦0.85 and 0.1≦b≦0.4; A is a dopant; and 0≦k≦0.05; and x+y=2 on condition of 0.95≦x≦1.05. The Ni-based lithium transition metal oxide according to the present invention has a well-layered structure, and also improved safety, cycling stability and stability against aging and low gas evolution during storage, when used as an active material for cathode of lithium secondary batteries, because it has a high sintering stability and is substantially free of soluble bases.Moreover, the lithium transition metal oxide of the present invention can be prepared by a low-cost process using a mixed transition metal precursor and Li2CO3 as raw stocks and under relatively unrestricted conditions.

摘要翻译： 本发明提供一种粉末状锂过渡金属氧化物，其具有如下式所示的组成，并由空气中的混合过渡金属前体和Li 2 CO 3固体反应制备，实际上不含Li 2 CO 3杂质：LixMyO2，其中M = M' 条件为0.65 <= a + b <= 0.85和0.1 <= b <= 0.4时，其中M'= Ni1-ab（Ni1 / 2Mn1 / 2）aCob为1-kAk。 A是掺杂剂; 0 <= k <= 0.05; 在0.95 <= x <= 1.05的条件下x + y = 2。 根据本发明的Ni基锂过渡金属氧化物具有良好的层状结构，并且当用作锂二次电池的阴极的活性材料时，具有良好的层叠结构，并且还提高了保存期间的耐老化和低气体逸出的安全性，循环稳定性和稳定性 因为其具有高的烧结稳定性并且基本上不含可溶性碱。 此外，本发明的锂过渡金属氧化物可以通过使用混合过渡金属前体和Li 2 CO 3作为原料并且在相对不受限制的条件下的低成本方法制备。

公开(公告)号：US20090325057A1

公开(公告)日：2009-12-31

申请号：US12227005

申请日：2007-05-04

申请人： Sun-kyu Kim ,  Seung-Don Choi ,  Hong-Kyu Park

发明人： Sun-kyu Kim ,  Seung-Don Choi ,  Hong-Kyu Park

IPC分类号： H01M10/04

CPC分类号： H01M2/14 ,  H01M2/145 ,  H01M2/1646 ,  H01M2/166 ,  H01M4/0416 ,  H01M4/043 ,  H01M4/0435 ,  H01M4/1391 ,  H01M8/1004 ,  Y10T29/49108

摘要： Disclosed is a method for producing a lithium secondary battery, the method comprising the steps of: (a) distributing or scattering insulating powder partially or totally onto a surface of at least one of a cathode, an anode and a separator; (b) forming an electrode assembly by using the cathode, the anode and the separator; and (c) introducing the electrode assembly into a casing and sealing the casing. A lithium secondary battery obtained from the method is also disclosed. The method for manufacturing a lithium secondary battery, including a step of scattering insulating powder partially or totally onto the surface of a separator or the surface of at least one electrode facing to the separator, significantly reduces generation of an internal short circuit between both electrodes caused by internal or external factors during the assemblage of a battery and generation of low-voltage defects, and thus significantly improves yield of desired batteries.

摘要翻译： 公开了一种锂二次电池的制造方法，该方法包括以下步骤：（a）将绝缘粉末部分或全部分散或散布在阴极，阳极和隔膜中的至少一个的表面上; （b）通过使用阴极，阳极和隔板形成电极组件; 和（c）将电极组件引入壳体并密封壳体。 还公开了从该方法获得的锂二次电池。 锂二次电池的制造方法，包括将绝缘粉末部分或全部分散在隔膜的表面或与隔膜相对的至少一个电极的表面的步骤，显着减少了两电极之间的内部短路的产生 通过内部或外部因素在组装电池和产生低电压缺陷，从而显着提高所需电池的产量。

公开(公告)号：US20090226810A1

公开(公告)日：2009-09-10

申请号：US12378883

申请日：2009-02-20

申请人： Jens M. Paulsen ,  Hong-Kyu Park ,  Yong Hoon Kwon

发明人： Jens M. Paulsen ,  Hong-Kyu Park ,  Yong Hoon Kwon

IPC分类号： H01M4/52

CPC分类号： C01G53/006 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/77 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2006/40 ,  C01P2006/80 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y02P20/129

摘要： The present invention provides for lithium ion secondary batteries that use Ni-based lithium transition metal oxide cathode active materials. The cathode active materials are substantially free of Li2CO3 impurity and soluble bases.

摘要翻译： 本发明提供使用Ni系锂过渡金属氧化物正极活性物质的锂离子二次电池。 阴极活性材料基本上不含Li 2 CO 3杂质和可溶碱。

公开(公告)号：US07235193B2

公开(公告)日：2007-06-26

申请号：US10487861

申请日：2003-04-22

申请人： Hong-Kyu Park ,  Yong Hoon Kwon ,  Seong Yong Park ,  Jin On Kim ,  Ki Young Lee

发明人： Hong-Kyu Park ,  Yong Hoon Kwon ,  Seong Yong Park ,  Jin On Kim ,  Ki Young Lee

IPC分类号： H01M4/52 ,  C01G51/04 ,  B32B15/02 ,  B05D5/12

CPC分类号： H01M10/0525 ,  C01G51/42 ,  C01G51/44 ,  C01G53/42 ,  C01G53/44 ,  C01P2002/02 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/88 ,  C01P2004/84 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/525 ,  H01M4/62 ,  Y10T428/2982 ,  Y10T428/2991

摘要： This invention relates to complex lithium metal oxides, which are cathode active materials of a lithium or lithium ion secondary battery with enhanced cycle life and safety, and a process for preparation thereof. The core particles are complex lithium metal oxides capable of absorbing, storing and emitting lithium ions, and a coating layer comprised of amorphous complex lithium cobalt oxides that are formed on the surface of the core particle, which is structurally stable and inactive with electrolytes. Because the amorphous complex lithium cobalt oxides are inactive with electrolytes, the oxides stabilize the surface structure of the complex lithium metal oxide and improve on high temperature storage properties, as well as safety and cycle life.

摘要翻译： 本发明涉及复合锂金属氧化物，它们是循环寿命和安全性提高的锂或锂离子二次电池的正极活性物质及其制备方法。 核心颗粒是能够吸收，储存和释放锂离子的复合锂金属氧化物，以及由在核心颗粒表面形成的无定形复合锂钴氧化物的涂层，其在电解质上结构稳定和无活性。 由于无定形复合锂钴氧化物与电解质无活性，所以氧化物稳定复合锂金属氧化物的表面结构，提高高温储存性能以及安全性和循环寿命。

公开(公告)号：US20070122338A1

公开(公告)日：2007-05-31

申请号：US11643672

申请日：2006-12-22

申请人： Hong-Kyu Park ,  Seong-Yong Park ,  Yong-Hoon Kwon ,  Joon-Sung Bae ,  Ki-Young Lee ,  Jin-On Kim

发明人： Hong-Kyu Park ,  Seong-Yong Park ,  Yong-Hoon Kwon ,  Joon-Sung Bae ,  Ki-Young Lee ,  Jin-On Kim

IPC分类号： C01G45/12 ,  H01M4/50

CPC分类号： H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/525

摘要： Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same, in particular a positive active material and preparation method of the same that can improve cycle-life characteristics at a high temperature and room temperature, and storage characteristics at a high temperature. The present invention has the effect of providing a positive active material and preparation method of the same that can improve cycle-life characteristics at room temperature and at a high temperature, and storage characteristics at a high temperature, by coating the surface of the lithium manganese spinel oxide particles with a lithium metal complex oxide.

摘要翻译： 公开了一种用于锂二次电池的正极活性材料及其制备方法，特别是正极活性材料及其制备方法，其可以改善高温和室温下的循环寿命特性，以及储存特性 高温。 本发明的效果是提供一种正极活性物质及其制备方法，其可以通过涂覆锂锰的表面，从而提高室温和高温下的循环寿命特性和高温下的储存特性 具有锂金属复合氧化物的尖晶石氧化物颗粒。

公开(公告)号：US07217479B2

公开(公告)日：2007-05-15

申请号：US10312672

申请日：2002-05-22

申请人： Hong-Kyu Park ,  Jeh-Won Choi ,  Yeon-Hee Lee ,  Young-Tack An ,  Hyeong-Jin Kim

发明人： Hong-Kyu Park ,  Jeh-Won Choi ,  Yeon-Hee Lee ,  Young-Tack An ,  Hyeong-Jin Kim

IPC分类号： H01M6/18 ,  H01M6/16

CPC分类号： H01M10/4235 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0567 ,  H01M2300/0025

摘要： The present invention relates to a non-aqueous electrolyte additive for improving safety and a lithium secondary battery comprising the same, and more particularly to a non-aqueous electrolyte additive that can improve cycle life and safety properties of a lithium ion secondary battery.According to the present invention, an organometallic compound represented by the Chemical Formula 1 is added to a non-aqueous electrolyte of a battery as an additive, and thus if a battery voltage is out of normal operation voltage range due to a short circuit and overcharge of a battery, etc., the non-aqueous electrolyte additive decomposes and a part of the decomposed additive polymerizes to form an insulating film on a cathode surface, and a part of the metal reacts with an insulating film formed on a cathode surface to improve thermal stability of the battery, thereby improving safety of the battery.

公开(公告)号：US20060233696A1

公开(公告)日：2006-10-19

申请号：US11104734

申请日：2005-04-13

申请人： Jens Paulsen ,  Hong-Kyu Park ,  Yong Kwon

发明人： Jens Paulsen ,  Hong-Kyu Park ,  Yong Kwon

IPC分类号： C01D1/02

CPC分类号： C01G53/006 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/77 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2006/40 ,  C01P2006/80 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y02P20/129

摘要： The present invention provides a powderous lithium transition metal oxide with the composition as represented by the below Formula and prepared by solid state reaction in air from a mixed transition metal precursor and Li2CO3, with being practically free of Li2CO3 impurity: LixMyO2 wherein M=M′l-kAk, where M′=Nil-a-b(Ni1/2Mn1/2)aCob on condition of 0.65≦a+b≦0.85 and 0.1≦b≦0.4; A is a dopant; and 0≦k≦0.05; and x+y=2 on condition of 0.95≦x≦1.05. The Ni-based lithium transition metal oxide according to the present invention has a well-layered structure, and also improved safety, cycling stability and stability against aging and low gas evolution during storage, when used as an active material for cathode of lithium secondary batteries, because it has a high sintering stability and is substantially free of soluble bases. Moreover, the lithium transition metal oxide of the present invention can be prepared by a low-cost process using a mixed transition metal precursor and Li2CO3 as raw stocks and under relatively unrestricted conditions.

摘要翻译： 本发明提供一种粉末状锂过渡金属氧化物，其组成如下式所示，并通过空气中的混合过渡金属前体和Li 2 CO 3 3固相反应制备， 实际上不含有Li 2 CO 3杂质：<？in-line-formula description =“In-line Formulas”end =“lead”→> α-in-line-formula description =“In-line Formulas”end =“tail”？>其中 M = M'其中M'= Ni实验室（Ni 1/2 Mn _{x + y = 2。 根据本发明的Ni基锂过渡金属氧化物具有良好的结构，并且还提高了安全性，循环稳定性和 由于其具有高的烧结稳定性并且基本上不含可溶性碱，所以当用作锂二次电池阴极的活性材料时，储存期间的稳定性和储存期间的低气体逸出。 此外，本发明的锂过渡金属氧化物可以通过使用混合过渡金属前体和Li 3 CO 3 3作为原料的低成本方法制备， 相对无限制的条件。}

公开(公告)号：US10249877B2

公开(公告)日：2019-04-02

申请号：US12709021

申请日：2010-02-19

申请人： Sanghoon Choy ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Hyo-Shik Kil ,  Cheol-Hee Park

发明人： Sanghoon Choy ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Hyo-Shik Kil ,  Cheol-Hee Park

IPC分类号： H01M4/58 ,  H01M4/90 ,  G01N23/20 ,  G01N33/00 ,  C01B25/45 ,  H01M4/62 ,  H01M4/136 ,  H01M10/0525 ,  H01M4/02

摘要： Provided is an olivine-type lithium iron phosphate having a composition represented by Formula I, comprising 0.1 to 5% by weight of Li3PO4, and comprising no Li2CO3 or, if present, comprising Li2CO3 in an amount less than 0.25% by weight: Li1+aFe1−xMx(PO4−b)Xb (I) wherein M, X, a, x and b are as defined above.The lithium iron phosphate comprises no lithium carbonate (Li2CO3) or, if present, comprises the Li2CO3 in an extremely small amount, and comprises Li3PO4 having superior electrochemical stability, thermal stability and ionic conductivity, thus advantageously imparting high-temperature and storage stability as well as stability and rate properties to lithium secondary batteries, when used as a cathode active material for the lithium secondary batteries.