公开(公告)号：US08026008B2

公开(公告)日：2011-09-27

申请号：US12723119

申请日：2010-03-12

申请人： Soojin Kim ,  Hong-Kyu Park ,  Sung kyun Chang ,  Jeong-Ju Cho ,  Hochun Lee

发明人： Soojin Kim ,  Hong-Kyu Park ,  Sung kyun Chang ,  Jeong-Ju Cho ,  Hochun Lee

IPC分类号： H01M4/48

CPC分类号： H01M10/0525 ,  H01M4/131 ,  H01M4/364 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567

摘要： Disclosed herein is a lithium secondary cell including 20 to 100 wt. % of lithium transition metal oxide represented by a formula of Li1+zNibMncMe1−(b+c)O2, relative to a total amount of a cathode active material, as well as an electrolyte consisting of a lithium salt and a non-aqueous solvent, wherein a first additive to form a protective film (that is, a solid electrolyte interface film: SEI film) over a surface of an anode active material and a second additive to form another SEI film over the surface of the anode active material while inactivating impurities contained in the cathode active material are included in the electrolyte.

摘要翻译： 本文公开了一种锂二次电池，其包含20至100重量％ 由Li1 + zNibMncMe1（b + c）O2表示的锂过渡金属氧化物的相对于阴极活性物质的总量以及由锂盐和非水溶剂组成的电解质的％ 其中在阳极活性材料的表面上形成保护膜（即，固体电解质界面膜：SEI膜）的第一添加剂和第二添加剂，以在阳极活性材料的表面上形成另一SEI膜，同时使杂质失活 包含在阴极活性材料中的电解质包含在电解质中。

公开(公告)号：US20110195303A1

公开(公告)日：2011-08-11

申请号：US13053579

申请日：2011-03-22

申请人： Sung Kyun CHANG ,  Hong-Kyu Park ,  Ho Suk Shin ,  Seung Tae Hong ,  Youngsun Choi

发明人： Sung Kyun CHANG ,  Hong-Kyu Park ,  Ho Suk Shin ,  Seung Tae Hong ,  Youngsun Choi

IPC分类号： H01M10/05 ,  H01M4/90

CPC分类号： H01M4/505 ,  C01G53/44 ,  C01P2002/20 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/525 ,  H01M10/052

摘要： Disclosed herein is a cathode active material for a lithium secondary battery, in particular, including a lithium transition metal oxide with a layered crystalline structure in which the transition metal includes a transition metal mixture of Ni, Mn and Co, and an average oxidation number of all transition metals other than lithium is more than +3, and specific conditions represented by the following formulae (1) and (2), 1.1

摘要翻译： 本发明公开了一种用于锂二次电池的阴极活性材料，特别是包括具有层状结晶结构的锂过渡金属氧化物，其中过渡金属包括Ni，Mn和Co的过渡金属混合物，平均氧化数 除锂之外的所有过渡金属都大于+3，由下式（1）和（2）表示的具体条件，1.1

公开(公告)号：US20110168944A1

公开(公告)日：2011-07-14

申请号：US12667357

申请日：2008-10-08

申请人： Sung Kyun Chang ,  Ho Suk Shin ,  Hong-Kyu Park

发明人： Sung Kyun Chang ,  Ho Suk Shin ,  Hong-Kyu Park

IPC分类号： H01M4/505

CPC分类号： C01G53/50 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  Y02T10/7011

摘要： Provided is a cathode active material for a lithium secondary battery, including a lithium-transition metal composite oxide represented by the following formula (1), which contains an excess of lithium, so as to exhibit enhanced rate characteristics under high rate charge/discharge conditions: Lii+aNi′bNi″cMndCoeO2 (1) wherein each of a, b, c, d and e has the same meaning as defined in the disclosure. The cathode active material according to the present invention includes an excess of lithium and, different from conventional technologies, a lithium-transition metal composite oxide containing a nickel element with a predetermined oxidation number, so that the active material exhibits a stable crystal structure and excellent rate characteristics under high rate charge/discharge conditions.

摘要翻译： 本发明提供一种锂二次电池用正极活性物质，其包含由下述式（1）表示的锂过渡金属复合氧化物，其含有过量的锂，以便在高速率充放电条件下表现出增强的速率特性 ：Lii + aNi'bNi“cMndCoeO2（1）其中a，b，c，d和e各自具有与本公开中所定义相同的含义。 根据本发明的正极活性物质包含过量的锂，并且与常规技术不同，含有具有预定氧化数的镍元素的锂 - 过渡金属复合氧化物，使得活性材料表现出稳定的晶体结构和优异的 高速率充​​放电条件下的速率特性。

公开(公告)号：US20110151328A1

公开(公告)日：2011-06-23

申请号：US12851888

申请日：2010-08-06

申请人： Sung kyun CHANG ,  Hong-Kyu Park ,  Sinyoung Park

发明人： Sung kyun CHANG ,  Hong-Kyu Park ,  Sinyoung Park

IPC分类号： H01M4/485 ,  H01M4/50 ,  H01M4/505 ,  H01M4/52 ,  H01M4/525

CPC分类号： H01M4/525 ,  H01M4/366 ,  H01M4/62 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/028 ,  Y02E60/122 ,  Y02T10/7011

摘要： Provided is a cathode active material composed of lithium nickel oxide represented by Formula 1, wherein the lithium nickel oxide contains nickel in an amount of 40% or higher, based on the total weight of transition metals, and the cathode active material comprises a first coating layer provided on the surface thereof and a second coating layer provided on the surface of the first coating layer, wherein the first coating layer is composed of a non-reactive material selected from the group consisting of oxides, nitrides, sulfides and mixtures or complexes thereof and the second coating layer is composed of a carbon-based material.

摘要翻译： 本发明提供一种由式1所示的锂镍氧化物构成的正极活性物质，其中，所述锂镍氧化物含有基于过渡金属的总重量为40％以上的镍，所述阴极活性物质包含第一涂层 并且设置在第一涂层的表面上的第二涂层，其中第一涂层由选自氧化物，氮化物，硫化物及其混合物或络合物的非反应性材料组成 第二涂层由碳系材料构成。

公开(公告)号：US20110089367A1

公开(公告)日：2011-04-21

申请号：US12679210

申请日：2009-04-03

申请人： Ho Suk Shin ,  Sung Kyun Chang ,  Hong-Kyu Park ,  Sinyoung Park ,  Youngsun Choi ,  Seung Tae Hong ,  Hyo-Shik Kil

发明人： Ho Suk Shin ,  Sung Kyun Chang ,  Hong-Kyu Park ,  Sinyoung Park ,  Youngsun Choi ,  Seung Tae Hong ,  Hyo-Shik Kil

IPC分类号： H01M4/90

CPC分类号： C01G53/006 ,  C01G51/00 ,  C01G53/40 ,  C01G53/50 ,  C01P2006/40 ,  H01M4/525

摘要： Provided is a precursor for the preparation of a lithium transition metal oxide that is used for the preparation of a lithium transition metal oxide as a cathode active material for a lithium secondary battery, through a reaction with a lithium-containing compound, wherein the precursor contains two or more transition metals, and sulfate ion (SO4)-containing salt ions derived from a transition metal salt for the preparation of the precursor have a content of 0.1 to 0.7% by weight, based on the total weight of the precursor.

摘要翻译： 提供了用于制备锂过渡金属氧化物的前体，其用于通过与含锂化合物的反应制备锂过渡金属氧化物作为锂二次电池的正极活性材料，其中前体包含 基于前体的总重量，由用于制备前体的过渡金属盐衍生的两种或更多种过渡金属和含硫酸根离子（SO 4）的盐离子的含量为0.1至0.7重量％。

公开(公告)号：US20110070501A1

公开(公告)日：2011-03-24

申请号：US12843471

申请日：2010-07-26

申请人： Sung kyun CHANG ,  Hong-Kyu Park ,  Sinyoung Park

发明人： Sung kyun CHANG ,  Hong-Kyu Park ,  Sinyoung Park

IPC分类号： H01M4/62 ,  H01B1/00 ,  H01B1/04 ,  H01B1/22

CPC分类号： H01M10/052 ,  H01M2/34 ,  H01M2/348 ,  H01M4/622 ,  H01M4/624 ,  H01M4/625 ,  H01M4/628 ,  H01M10/4235 ,  Y02E60/122 ,  Y02T10/7011

摘要： Disclosed herein is an additive for improvement in safety of an electrochemical device, including an inner core and an outer coating layer, wherein the inner core is formed using a volume-expandable material fused at more than a predetermined temperature while the outer coating layer is formed using a conductive material with higher conductivity than that of the inner core and covers an outer face of the inner core.The disclosed additive rapidly increases resistance of the electrochemical device before ignition/explosion of the device caused by temperature rise, thereby effectively preventing ignition/explosion of the electrochemical device without deterioration in performance of the electrochemical device.

摘要翻译： 本文公开了一种用于改进电化学装置的安全性的添加剂，其包括内芯和外涂层，其中内芯使用在大于预定温度下熔化的体积可膨胀材料形成，同时外涂层形成 使用导电性高于内芯导电性的导电材料，并覆盖内芯的外表面。 所公开的添加剂在由温度升高引起的装置点火/爆炸之前快速增加电化学装置的电阻，从而有效地防止电化学装置的点火/爆炸，而不会使电化学装置的性能下降。

公开(公告)号：US20080026292A1

公开(公告)日：2008-01-31

申请号：US11688358

申请日：2007-03-20

申请人： Jens Paulsen ,  Hong-Kyu Park ,  Sun SHIN ,  Sinyoung PARK ,  Hyeyun CHA

发明人： Jens Paulsen ,  Hong-Kyu Park ,  Sun SHIN ,  Sinyoung PARK ,  Hyeyun CHA

IPC分类号： H01M4/52

CPC分类号： C01G53/50 ,  C01P2006/40 ,  H01M4/505 ,  H01M4/525 ,  Y02E60/122 ,  Y02P70/54

摘要： Provided is a cathode material for a lithium secondary battery, comprising a heat-treated mixture of an oxide powder (a) represented by Formula I and an oxide powder (b) represented by Formula II, wherein a mixing ratio of the oxide powder (a):oxide powder (b) is in a range of 30:70 to 90:10, the oxide powder (a) is monolithic particles having a D50 of more than 10 μm, and the oxide powder (b) is agglomerated particles having a D50 of less than 10 μm, and heat treatment is carried out at a temperature of 400° C. or higher. LiCoO2  (I) LizMO2  (II) wherein 0.95

摘要翻译： 本发明提供一种锂二次电池用正极材料，其特征在于，包含由式I表示的氧化物粉末（a）和式II表示的氧化物粉末（b）的热处理混合物，其中，氧化物粉末（a ）：氧化物粉末（b）的比例范围为30:70〜90:10，氧化物粉末（a）为D50大于10um的整体颗粒，氧化物粉末（b）为具有 D50小于10微米，并且在400℃或更高的温度下进行热处理。 <？in-line-formula description =“In-line Formulas”end =“lead”？> LiCoO 2（I）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？？？？？？？？？？？？（II） ？in-line-formula description =“In-line formula”end =“tail”？>其中0.95

公开(公告)号：US07217477B2

公开(公告)日：2007-05-15

申请号：US10312674

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： H01M10/0567 ,  H01M4/525 ,  H01M4/587 ,  H01M6/10 ,  H01M10/0525 ,  H01M10/4235 ,  H01M2300/002 ,  H01M2300/0037

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. Furthermore, in case of a short circuit a part of the metal oxide of the additive is removed an activity of lithium or is reduced movement speed of lithium by reacting with lithium rushed from an anode to a cathode, and thus safety of the battery can be obtained on a short circuit by delaying a flow of current.

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，因此如果电池电压由于短路和过充电而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。 此外，在短路的情况下，添加剂的金属氧化物的一部分除去锂的活性或通过与从阳极冲出的阴极反应的锂的移动速度降低，因此电池的安全性可以是 通过延迟电流来在短路上获得。

公开(公告)号：US07056486B2

公开(公告)日：2006-06-06

申请号：US09959129

申请日：2001-01-19

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

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

IPC分类号： C01G45/12 ,  H01M4/50

CPC分类号： C01G45/1242 ,  C01G51/54 ,  C01G53/54 ,  C01P2002/32 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/80 ,  C01P2006/40 ,  H01M4/505

摘要： The present invention relates to lithium manganese complex oxide with a spinel structure used as an active material of a lithium or lithium ion secondary battery. Specifically, the present invention relates to a process for preparing lithium manganese complex oxide having improved cyclic performance at a high temperature above room temperature, and a lithium or lithium ion secondary battery using the oxide prepared according to said process as a cathode active material.

公开(公告)号：US20060063066A1

公开(公告)日：2006-03-23

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

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。