公开(公告)号：US08450013B2

公开(公告)日：2013-05-28

申请号：US12893176

申请日：2010-09-29

申请人： Hong-Kyu Park ,  Sun sik Shin ,  Sin young Park ,  Ho suk Shin ,  Jens M. Paulsen

发明人： Hong-Kyu Park ,  Sun sik Shin ,  Sin young Park ,  Ho suk Shin ,  Jens M. Paulsen

IPC分类号： C01D1/00

CPC分类号： H01M4/485 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/006 ,  C01G53/50 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/84 ,  C01P2006/10 ,  C01P2006/37 ,  C01P2006/40 ,  C01P2006/80 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T436/15

摘要： Provided is a cathode active material containing a Ni-based lithium mixed transition metal oxide. More specifically, the cathode active material comprises the lithium mixed transition metal oxide having a composition represented by Formula I of LixMyO2 wherein M, x and y are as defined in the specification, which is prepared by a solid-state reaction of Li2CO3 with a mixed transition metal precursor under an oxygen-deficient atmosphere, and has a Li2CO3 content of less than 0.07% by weight of the cathode active material as determined by pH titration. The cathode active material in accordance with the present invention and substantially free of water-soluble bases such as lithium carbonates and lithium sulfates and therefore has excellent high-temperature and storage stabilities and a stable crystal structure. A secondary battery comprising such a cathode active material exhibits a high capacity and excellent characteristics, and can be produced by an environmentally friendly method with low production costs and high production efficiency.

摘要翻译： 提供含有Ni基锂混合过渡金属氧化物的正极活性物质。 更具体地说，阴极活性材料包括具有由Li x Mn 2 O的式I表示的组成的锂混合过渡金属氧化物，其中M，x和y如说明书中所定义，其通过Li 2 CO 3与混合的固态反应 过氧化物金属前体，并且通过pH滴定测定，Li2CO3含量小于正极活性物质的0.07重量％。 根据本发明的阴极活性材料，基本上不含碳酸锂和硫酸锂等水溶性碱，因此具有优异的高温保存稳定性和稳定的晶体结构。 包含这种正极活性物质的二次电池显示出高容量和优异的特性，并且可以通过环保的方法生产，生产成本低，生产效率高。

公开(公告)号：US20110175021A1

公开(公告)日：2011-07-21

申请号：US13077052

申请日：2011-03-31

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： H01M4/525

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 a process of making a Ni-based lithium transition metal oxide cathode active materials used in lithium ion secondary batteries. The cathode active materials are substantially free of Li2CO3 impurity and soluble bases.

摘要翻译： 本发明提供了制造用于锂离子二次电池的Ni基锂过渡金属氧化物正极活性物质的方法。 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：US07931979B2

公开(公告)日：2011-04-26

申请号：US11197025

申请日：2005-08-04

申请人： Seungdon Choi ,  Hong-Kyu Park

发明人： Seungdon Choi ,  Hong-Kyu Park

IPC分类号： H01M10/50 ,  H01M4/62

CPC分类号： H01M4/62 ,  H01M4/624 ,  H01M10/0525 ,  H01M10/4235 ,  H01M10/613 ,  H01M10/617 ,  H01M10/647 ,  H01M10/659

摘要： Provided is a battery system in which an interior part of a battery structure includes particles (phase-change particles) containing materials (phase-change materials) having a high latent heat of phase change at a specific temperature, contained in a capsule made of an inert material. The battery system in accordance with the present invention can prolong a service life of the battery by inhibiting temperature elevation inside the battery under normal operating conditions without substantial effects on size, shape and performance of the battery, and further, can inhibit the risk of explosion resulting from a sharp increase in temperature inside the battery under abnormal operating conditions, thereby contributing to battery safety.

摘要翻译： 提供一种电池系统，其中电池结构的内部部分包括含有在特定温度下具有高相变潜热的材料（相变材料）的颗粒（相变颗粒），该材料（相变材料）包含在由 惰性材料。 根据本发明的电池系统可以通过在正常操作条件下抑制电池内的温度升高而延长电池的使用寿命，而不会对电池的尺寸，形状和性能产生实质影响，并且还可以抑制爆炸的风险 这是由于在异常操作条件下电池内部的温度急剧升高，从而有助于电池安全。

公开(公告)号：US20100233540A1

公开(公告)日：2010-09-16

申请号：US12709200

申请日：2010-02-19

申请人： Sanghoon CHOY ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Ji Eun Lee

发明人： Sanghoon CHOY ,  Yong Tae Lee ,  Hong-Kyu Park ,  Soo Min Park ,  Ji Eun Lee

IPC分类号： H01M4/525

CPC分类号： C01B25/45 ,  H01M4/043 ,  H01M4/131 ,  H01M4/5825 ,  H01M2004/021

摘要： Provided is an olivine-type lithium iron phosphate composed of secondary particles having a mean particle diameter (D50) of 5 to 100 μm, formed by aggregation of primary particles having a mean particle diameter (D50) of 50 to 550 nm, wherein the primary and secondary particles have a composition represented by Formula I below and the secondary particles have a porosity of 15 to 40%: Li1+aFe1-xMx(PO4-b)Xb (I) wherein M, X, a, x and b are as defined above.The olivine-type lithium iron phosphate is in the form of secondary particles, thus imparting a high bulk density to lithium secondary batteries and exhibiting superior process efficiency due to shortened mixing time, when used to fabricate the lithium secondary batteries. Furthermore, the olivine-type lithium iron phosphate has the high porosity, thus allowing at least a portion of the secondary particles to be deformed and converted into primary particles in the process of pressing to fabricate electrodes and preventing deterioration in ionic conductivity due to the large particle diameter.

摘要翻译： 本发明提供一种由平均粒径（D50）为5〜100μm的二次粒子构成的橄榄石型磷酸铁锂，其通过聚集平均粒径（D50）为50〜550nm的一次粒子而形成，其中， 二次粒子具有下述式I所示的组成，二次粒子的孔隙率为15〜40％：Li1 + aFe1-xMx（PO4-b）Xb（I）其中M，X，a，x和b分别为 以上定义。 橄榄石型磷酸铁锂是二次粒子的形式，因此当锂二次电池用于制造锂二次电池时，由于缩短了混合时间，因此赋予锂二次电池高的堆积密度，并表现出优异的工艺效率。 此外，橄榄石型磷酸铁锂具有高孔隙率，从而允许至少一部分二次粒子在压制过程中变形并转化为一次粒子，以制造电极，并防止由于大的离子导电性导致的劣化 粒径。

公开(公告)号：US07252906B2

公开(公告)日：2007-08-07

申请号：US10240536

申请日：2002-01-24

申请人： Hong-Kyu Park ,  Yong-Hoon Kwon ,  Seong-Yong Park ,  Mi-Seon Kwak ,  Jong-Moon Yoon ,  Joon-Sung Bae ,  Jin-On Kim

发明人： Hong-Kyu Park ,  Yong-Hoon Kwon ,  Seong-Yong Park ,  Mi-Seon Kwak ,  Jong-Moon Yoon ,  Joon-Sung Bae ,  Jin-On Kim

IPC分类号： H01M4/58

CPC分类号： H01M4/485 ,  C01G45/1228 ,  C01G51/42 ,  C01G51/50 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/88 ,  C01P2004/84 ,  C01P2006/40 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028

摘要： Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemical characteristics, by forming an overlayer comprising an oxide glass phase on the surface of the positive active material, and a lithium secondary battery comprising the positive active material.

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，其可以通过改善结构安全性和电化学特性来改善循环寿命特性和高温下的储存特性，通过形成包含氧化物玻璃相 在正极活性物质的表面上，以及包含正极活性物质的锂二次电池。

公开(公告)号：US20070122713A1

公开(公告)日：2007-05-31

申请号：US11643674

申请日：2006-12-22

申请人： Hong-Kyu Park ,  Yong-Hoon Kwon ,  Seong-Yong Park ,  Mi-Seon Kwak ,  Jong-Moon Yoon ,  Joon-Sung Bae ,  Jin-On Kim

发明人： Hong-Kyu Park ,  Yong-Hoon Kwon ,  Seong-Yong Park ,  Mi-Seon Kwak ,  Jong-Moon Yoon ,  Joon-Sung Bae ,  Jin-On Kim

IPC分类号： H01M4/62 ,  H01M4/48 ,  B05D5/12 ,  C01D1/02

CPC分类号： H01M4/485 ,  C01G45/1228 ,  C01G51/42 ,  C01G51/50 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/88 ,  C01P2004/84 ,  C01P2006/40 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028

摘要： Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemical characteristics, by forming an overlayer comprising an oxide glass phase on the surface of the positive active material, and a lithium secondary battery comprising the positive active material.

公开(公告)号：US20110117662A1

公开(公告)日：2011-05-19

申请号：US12893176

申请日：2010-09-29

申请人： Hong-Kyu Park ,  Sun Sik Shin ,  Sin Young Park ,  Ho Suk Shin ,  Jens M. Paulsen

发明人： Hong-Kyu Park ,  Sun Sik Shin ,  Sin Young Park ,  Ho Suk Shin ,  Jens M. Paulsen

IPC分类号： H01M4/86 ,  G01N31/16

CPC分类号： H01M4/485 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/006 ,  C01G53/50 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/84 ,  C01P2006/10 ,  C01P2006/37 ,  C01P2006/40 ,  C01P2006/80 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T436/15

摘要： Provided is a cathode active material containing a Ni-based lithium mixed transition metal oxide. More specifically, the cathode active material comprises the lithium mixed transition metal oxide having a composition represented by Formula I of LixMyO2 wherein M, x and y are as defined in the specification, which is prepared by a solid-state reaction of Li2CO3 with a mixed transition metal precursor under an oxygen-deficient atmosphere, and has a Li2CO3 content of less than 0.07% by weight of the cathode active material as determined by pH titration. The cathode active material in accordance with the present invention and substantially free of water-soluble bases such as lithium carbonates and lithium sulfates and therefore has excellent high-temperature and storage stabilities and a stable crystal structure. A secondary battery comprising such a cathode active material exhibits a high capacity and excellent characteristics, and can be produced by an environmentally friendly method with low production costs and high production efficiency.

摘要翻译： 提供含有Ni基锂混合过渡金属氧化物的正极活性物质。 更具体地说，阴极活性材料包括具有由Li x Mn 2 O的式I表示的组成的锂混合过渡金属氧化物，其中M，x和y如说明书中所定义，其通过Li 2 CO 3与混合的固态反应 过氧化物金属前体，并且通过pH滴定测定，Li2CO3含量小于正极活性物质的0.07重量％。 根据本发明的阴极活性材料，基本上不含碳酸锂和硫酸锂等水溶性碱，因此具有优异的高温保存稳定性和稳定的晶体结构。 包含这种正极活性物质的二次电池显示出高容量和优异的特性，并且可以通过环保的方法生产，生产成本低，生产效率高。

公开(公告)号：US20110114873A1

公开(公告)日：2011-05-19

申请号：US12896025

申请日：2010-10-01

申请人： Hong-Kyu Park ,  Sun Sik Shin ,  Sin Young Park ,  Ho Suk Shin ,  Jens M. Paulsen

发明人： Hong-Kyu Park ,  Sun Sik Shin ,  Sin Young Park ,  Ho Suk Shin ,  Jens M. Paulsen

IPC分类号： H01M4/52

CPC分类号： H01M4/131 ,  C01G45/1228 ,  C01G51/50 ,  C01G53/50 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/84 ,  C01P2006/10 ,  C01P2006/37 ,  C01P2006/40 ,  C01P2006/80 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

摘要： Provided is a lithium mixed transition metal oxide having a composition represented by Formula I of LixMyO2 (M, x and y are as defined in the specification)having mixed transition metal oxide layers (“MO layers”) comprising Ni ions and lithium ions, wherein lithium ions intercalate into and deintercalate from the MO layers and a portion of MO layer-derived Ni ions are inserted into intercalation/deintercalation layers of lithium ions (“reversible lithium layers”) thereby resulting in the interconnection between the MO layers. The lithium mixed transition metal oxide of the present invention has a stable layered structure and therefore exhibits improved stability of the crystal structure upon charge/discharge. In addition, a battery comprising such a cathode active material can exhibit a high capacity and a high cycle stability. Further, such a lithium mixed transition metal oxide is substantially free of water-soluble bases, and thereby can provide excellent storage stability, decreased gas evolution and consequently superior high-temperature stability with the feasibility of low-cost mass production.

摘要翻译： 本发明提供具有由Ni x离子和锂离子组成的混合过渡金属氧化物层（“MO层”）的LixMyO2（M，x和y如说明书中所定义）的式I所示组成的锂混合过渡金属氧化物，其中 锂离子从MO层插入和脱嵌，并且将一部分MO层衍生的Ni离子插入到锂离子（“可逆锂层”）的嵌入/脱嵌层中，从而导致MO层之间的互连。 本发明的锂混合过渡金属氧化物具有稳定的层状结构，因此在充放电时显示出晶体结构的稳定性提高。 此外，包含这种阴极活性材料的电池可以表现出高容量和高循环稳定性。 此外，这种锂混合过渡金属氧化物基本上不含水溶性碱，从而可以提供优异的储存稳定性，降低的气体逸出性以及因此优异的高温稳定性以及低成本批量生产的可行性。

公开(公告)号：US20100261060A1

公开(公告)日：2010-10-14

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 ,  G01N33/00 ,  G01N23/20

CPC分类号： H01M4/5825 ,  C01B25/45 ,  H01M4/136 ,  H01M4/624 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  Y10T436/20

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: Lii+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.

摘要翻译： 本发明提供一种具有由式I表示的组成的橄榄石型磷酸铁锂，其包含0.1至5重量％的Li 3 PO 4，并且不包含Li 2 CO 3或如果存在，其包含少于0.25重量％的Li 2 CO 3：Li + aFe1-xMx（PO4-b）Xb（I）其中M，X，a，x和b如上所定义。 磷酸铁锂不包含碳酸锂（Li 2 CO 3），或者如果存在的话，极少量包含Li 2 CO 3，并且包含具有优异的电化学稳定性，热稳定性和离子导电性的Li 3 PO 4，因此有利地赋予高温和储存稳定性 作为锂二次电池的稳定性和速率特性，用作锂二次电池的正极活性物质。

公开(公告)号：US07709149B2

公开(公告)日：2010-05-04

申请号：US10950105

申请日：2004-09-24

申请人： Jens M. Paulsen ,  Yonghoon Kwon ,  Jaeup Jang ,  Hong-Kyu Park

发明人： Jens M. Paulsen ,  Yonghoon Kwon ,  Jaeup Jang ,  Hong-Kyu Park

IPC分类号： H01M4/58 ,  H01B1/02

CPC分类号： H01M4/131 ,  C01G51/42 ,  C01G51/50 ,  C01G53/50 ,  C01P2002/22 ,  C01P2002/32 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2006/40 ,  H01M4/04 ,  H01M4/366 ,  H01M4/485 ,  H01M4/525 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2998

摘要： The present invention provides a powdery composite precursor, which comprises a core of a lithium transition metal oxide, and an aluminum hydroxide-based precipitate layer coated on the surface of the core, and a process to prepare the composite precursor. The preparation process comprises the formation of a water based slurry by dispersing lithium transition metal oxide powder in water, and a precipitation reaction of an aluminum salt solution with a base solution where the lithium transition metal particles act as seed particles, whereby a mechanically stable precipitate layer of homogeneous thickness can be achieved. The composite precursor can be converted into aluminum-containing, e.g., aluminum-doped, lithium transition metal oxide suitable for a cathode active material of lithium rechargeable battery by heat treatment.

摘要翻译： 本发明提供一种粉末状复合前体，其包含锂过渡金属氧化物的核和涂覆在芯的表面上的氢氧化铝基沉淀层，以及制备复合前体的方法。 制备方法包括通过将锂过渡金属氧化物粉末分散在水中形成水基浆料，以及铝盐溶液与锂过渡金属颗粒作为种子颗粒的碱溶液的沉淀反应，由此机械稳定的沉淀 可以实现均匀厚度的层。 复合前体可以通过热处理转化成适合于锂可再充电电池的阴极活性材料的含铝例如铝掺杂的锂过渡金属氧化物。