公开(公告)号：US08142936B2

公开(公告)日：2012-03-27

申请号：US10588481

申请日：2004-02-10

Applicant: Soon Ho Ahn ,  Jae Hyun Lee ,  Jeong Ju Cho ,  Ho Chun Lee ,  Mi Young Son ,  Hyeong Jin Kim ,  Han Ho Lee

Inventor： Soon Ho Ahn ,  Jae Hyun Lee ,  Jeong Ju Cho ,  Ho Chun Lee ,  Mi Young Son ,  Hyeong Jin Kim ,  Han Ho Lee

IPC: H01M6/18

CPC classification number: H01M10/052 ,  H01B1/122 ,  H01M10/0567 ,  H01M10/4235

Abstract: The present invention relates to a nonaqueous electrolyte solution containing new additives and a lithium secondary battery including the same. More particularly, the invention relates to a nonaqueous electrolyte solution containing a lithium salt, an electrolyte compound, a first additive compound with an oxidation initiation potential of more than 4.2 V, and a second additive compound with an oxidation initiation potential of more than 4.2 V, which is higher in oxidation initiation potential than the first additive, and deposits oxidative products or form a polymer film, in oxidation, as well as a lithium secondary battery including the same. The present invention can provide a lithium secondary battery excellent in both the battery performance and the battery safety in overcharge by the combined use of the first additive and the second battery as additives to the nonaqueous electrolyte solution.

Abstract translation: 本发明涉及含有新添加剂的非水电解质溶液和包含该添加剂的锂二次电池。 更具体地说，本发明涉及含有锂盐，电解质化合物，氧化起始电位大于4.2V的第一添加剂化合物和氧化起始电位大于4.2V的第二添加剂化合物的非水电解质溶液 ，其氧化起始电位高于第一添加剂，并且氧化产生氧化物或形成聚合物膜，以及包含其的锂二次电池。 本发明可以通过将第一添加剂和第二电池作为添加剂与非水电解质溶液的组合使用，提供在电池性能和电池安全性方面优异的锂二次电池。

公开(公告)号：US07914707B2

公开(公告)日：2011-03-29

申请号：US12649100

申请日：2009-12-29

Applicant: Yu Sin Kim ,  Hyeong Jin Kim ,  Hye Yun Cha ,  Ho Chun Lee

Inventor： Yu Sin Kim ,  Hyeong Jin Kim ,  Hye Yun Cha ,  Ho Chun Lee

IPC: H01B1/12 ,  C07C255/46

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0569 ,  H01M10/4235

Abstract: Disclosed is a compound represented by the following formula 1: wherein, each of R1˜R13 independently represents —H, —F, —Cl, —Br, —I, —OH, —SH, —COOH, —PO3H2, —NH2, —NO2, —O(CH2CH2O)nH (wherein, n is an integer of 1˜5), C1˜C12 alkyl group, C1˜C12 aminoalkyl group, C1˜C12 hydroxyalkyl group, C1˜C12 haloalkyl group, C2˜C12 alkenyl group, C1˜C12 alkoxy group, C1˜C12 alkylamino group, C1˜C12 dialkylamino group, C6˜C18 aryl group, C6˜C18 aminoaryl group, C6˜C18 hydroxyaryl group, C6˜C18 haloaryl group, C7˜C18 benzyl group, C7˜C18 aminobenzyl group, C7˜C18 hydroxybenzyl group, C7˜C18 halobenzyl group, or nitrile group (—CN); and at least one of R4˜R13 is nitrile group (—CN). A non-aqueous electrolyte comprising: (i) a lithium salt, (ii) a solvent, and (iii) a compound represented by formula 1; and a secondary battery comprising the non-aqueous electrolyte are also disclosed. When the compound represented by formula 1 is added to a non-aqueous electrolyte, it is possible to improve the safety of a secondary battery in an overcharged state.

Abstract translation: 公开了由下式1表示的化合物：其中，R 1〜R 13各自独立地表示-H，-F，-Cl，-Br，-I，-OH，-SH，-COOH，-PO 3 H 2，-NH 2， -NO 2，-O（CH 2 CH 2 O）n H（其中n为1〜5的整数），C 1〜C 12烷基，C 1〜C 12氨基烷基，C 1〜C 12羟烷基，C 1〜C 12卤代烷基，C 2〜C 12烯基 基团，C 1〜C 12烷氧基，C 1〜C 12烷基氨基，C 1〜C 12二烷基氨基，C 6〜C 18芳基，C 6〜C 18氨基芳基，C 6〜C 18羟基芳基，C 6〜C 18卤代芳基，C 7〜C 18苄基， C 7〜C 18氨基苄基，C 7〜C 18羟基苄基，C 7〜C 18卤代苄基或腈基（-CN）; 并且R 4〜R 13中的至少一个为腈基（-CN）。 一种非水电解质，其包含：（i）锂盐，（ii）溶剂，和（iii）由式1表示的化合物; 还公开了包含非水电解质的二次电池。 当将由式1表示的化合物加入到非水电解质中时，可以提高过充电状态的二次电池的安全性。

公开(公告)号：US07629082B2

公开(公告)日：2009-12-08

申请号：US11112170

申请日：2005-04-22

Applicant: Sung Kyun Chang ,  Hyeong Jin Kim ,  Sang Hoon Choy ,  Jeong Ju Cho

Inventor： Sung Kyun Chang ,  Hyeong Jin Kim ,  Sang Hoon Choy ,  Jeong Ju Cho

IPC: H01M4/58

CPC classification number: H01M4/366 ,  H01M4/0402 ,  H01M4/0416 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/40 ,  H01M4/58 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/027

Abstract: Disclosed is an anode active material, comprising: (a) a carbonaceous material; and (b) a carbide coating layer partially or totally formed on a surface of the carbonaceous material, the carbide coating layer comprising at least one element selected from the group consisting of metals and metalloids. An anode obtained by using the anode active material and an electrochemical device comprising the anode are also disclosed. The carbonaceous material comprises a coating layer of metal-/metalloid-carbide obtained by treating it at high temperature under inert atmosphere, wherein the coating layer has increased interfacial boding force to the carbonaceous material and thus shows minimized reactivity to lithium. The carbonaceous material as anode active material can minimize the irreversible anode capacity needed for the formation of an SEI film during the first charge/discharge cycle, thereby providing high capacity, high efficiency and significantly improved anode qualities.

Abstract translation: 公开了一种阳极活性材料，其包含：（a）碳质材料; 和（b）部分或全部形成在所述碳质材料的表面上的碳化物涂层，所述碳化物涂层包含选自金属和准金属的至少一种元素。 还公开了通过使用阳极活性材料获得的阳极和包括阳极的电化学装置。 含碳材料包括通过在惰性气氛下在高温下处理而获得的金属/ /类金刚石碳化物的涂层，其中涂层对碳质材料具有增加的界面粘合力，因此显示出对锂的反应性最小化。 作为阳极活性材料的碳质材料可以使在第一充电/放电循环期间形成SEI膜所需的不可逆阳极容量最小化，从而提供高容量，高效率和显着改善的阳极质量。

公开(公告)号：US20080254370A1

公开(公告)日：2008-10-16

申请号：US11576084

申请日：2005-12-07

Applicant: Ho Chun Lee ,  Hyeong Jin Kim

Inventor： Ho Chun Lee ,  Hyeong Jin Kim

IPC: H01M6/16

CPC classification number: H01M10/0567 ,  H01M4/38 ,  H01M4/525 ,  H01M10/05 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/4235

Abstract: Disclosed is an electrolyte comprising: (a) an electrolyte salt; (b) a non-aqueous electrolyte solvent; and (c) a binary or multinary metal oxide salt. An electrochemical device comprising the same electrolyte is also disclosed. The metal oxide salt used in the electrolyte is dissolved in a non-aqueous solvent and generates oxyanions capable of improving corrosion resistance of metals. Therefore. the electrolyte prevents corrosion of metallic materials present in an electrochemical device, caused by extreme conditions, such as overcharge, overdischarge and high-temperature storage conditions, to which the device is exposed. Further, the electrolyte prevents degradation in the quality of an electrochemical device, caused by corrosion of metallic materials.

Abstract translation: 公开了一种电解质，其包含：（a）电解质盐; （b）非水电解质溶剂; 和（c）二元或多元金属氧化物盐。 还公开了包含相同电解质的电化学装置。 将电解质中使用的金属氧化物盐溶解于非水溶剂中，生成能够提高金属耐蚀性的氧阴离子。 因此。 电解液可以防止由于器件暴露于极端条件（如过充电，过放电和高温储存条件）引起的电化学器件中存在的金属材料的腐蚀。 此外，电解质防止由金属材料的腐蚀引起的电化学装置的质量下降。

公开(公告)号：US06479192B1

公开(公告)日：2002-11-12

申请号：US09582144

申请日：2000-10-19

Applicant: Geun-Chang Chung ,  Song-Hui Jun ,  Hyeong-Jin Kim

Inventor： Geun-Chang Chung ,  Song-Hui Jun ,  Hyeong-Jin Kim

IPC: H01M1040

CPC classification number: H01M10/0569 ,  C07D317/34 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525

Abstract: A non-aqueous electrolyte lithium secondary battery that includes: a carbon capable of intercalating and de-intercalating lithium ion as an anode; a lithium containing material that can reversibly intercalate and de-intercalate lithium ion as a cathode; and a non-aqueous electrolyte including trans-4,5, dialkyl-1,3- dioxolane-2-one substantially free of cis-4,5-dialkyl-1,3-dioxolane-2-one and a lithium salt.

Abstract translation: 一种非水电解质锂二次电池，其包括：能够插入和脱嵌锂离子作为阳极的碳; 可以将锂离子可逆地嵌入和脱嵌作为阴极的含锂材料; 和非水电解质，其包含基本上不含顺式-4,5-二烷基-1,3-二氧戊环-2-酮的反式-4,5，二烷基-1,3-二氧戊环-2-酮和锂盐。

公开(公告)号：US07695867B2

公开(公告)日：2010-04-13

申请号：US10950104

申请日：2004-09-24

Applicant: Sung Kyun Chang ,  Seung Tae Hong ,  Hyeong Jin Kim ,  Duk Hyun Ryu ,  Eun Young Goh ,  Ho Chun Lee ,  Jun Yong Jeong ,  Jin Hee Yeon ,  Hyung Keun Lee

Inventor： Sung Kyun Chang ,  Seung Tae Hong ,  Hyeong Jin Kim ,  Duk Hyun Ryu ,  Eun Young Goh ,  Ho Chun Lee ,  Jun Yong Jeong ,  Jin Hee Yeon ,  Hyung Keun Lee

IPC: H01M4/58 ,  H01M4/32

CPC classification number: H01M4/505 ,  H01M4/131 ,  H01M4/366 ,  H01M4/525 ,  H01M10/0525

Abstract: Disclosed is a method for regulating terminal voltage of a cathode during overdischarge. Also disclosed is a lithium secondary battery, which is low in capacity loss after overdischarge, having excellent capacity restorability after overdischarge and shows an effect of preventing a battery from swelling at a high temperature.

Abstract translation: 公开了一种用于在过放电期间调节阴极的端电压的方法。 还公开了一种锂二次电池，其在过放电后的容量损失小，在过放电后具有优异的容量恢复性，并且显示出防止电池在高温下膨胀的效果。

公开(公告)号：US07666330B2

公开(公告)日：2010-02-23

申请号：US11406640

申请日：2006-04-19

Applicant: Yu Sin Kim ,  Hyeong Jin Kim ,  Hye Yun Cha ,  Ho Chun Lee

Inventor： Yu Sin Kim ,  Hyeong Jin Kim ,  Hye Yun Cha ,  Ho Chun Lee

IPC: H01B1/20 ,  H01B1/12

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0569 ,  H01M10/4235

Abstract: Disclosed is a compound represented by the following formula 1: wherein, each of R1˜R13 independently represents —H, —F, —Cl, —Br, —I, —OH, —SH, —COOH, —PO3H2, —NH2, —NO2, —O(CH2CH2O)nH (wherein, n is an integer of 1˜5), C1˜C12 alkyl group, C1˜C12 aminoalkyl group, C1˜C12 hydroxyalkyl group, C1˜C12 haloalkyl group, C2˜C12 alkenyl group, C1˜C12 alkoxy group, C1˜C12 alkylamino group, C1˜C12 dialkylamino group, C6˜C18 aryl group, C6˜C18 aminoaryl group, C6˜C18 hydroxyaryl group, C6˜C18 haloaryl group, C7˜C18 benzyl group, C7˜C18 aminobenzyl group, C7˜C18 hydroxybenzyl group, C7˜C18 halobenzyl group, or nitrile group (—CN); and at least one of R4˜R13 is nitrile group (—CN). A non-aqueous electrolyte comprising: (i) a lithium salt, (ii) a solvent, and (iii) a compound represented by formula 1; and a secondary battery comprising the non-aqueous electrolyte are also disclosed. When the compound represented by formula 1 is added to a non-aqueous electrolyte, it is possible to improve the safety of a secondary battery in an overcharged state.

Abstract translation: 公开了由下式1表示的化合物：其中，R 1〜R 13各自独立地表示-H，-F，-Cl，-Br，-I，-OH，-SH，-COOH，-PO 3 H 2，-NH 2， -NO 2，-O（CH 2 CH 2 O）n H（其中n为1〜5的整数），C 1〜C 12烷基，C 1〜C 12氨基烷基，C 1〜C 12羟烷基，C 1〜C 12卤代烷基，C 2〜C 12烯基 基团，C 1〜C 12烷氧基，C 1〜C 12烷基氨基，C 1〜C 12二烷基氨基，C 6〜C 18芳基，C 6〜C 18氨基芳基，C 6〜C 18羟基芳基，C 6〜C 18卤代芳基，C 7〜C 18苄基， C 7〜C 18氨基苄基，C 7〜C 18羟基苄基，C 7〜C 18卤代苄基或腈基（-CN）; 并且R 4〜R 13中的至少一个为腈基（-CN）。 一种非水电解质，其包含：（i）锂盐，（ii）溶剂，和（iii）由式1表示的化合物; 还公开了包含非水电解质的二次电池。 当将由式1表示的化合物加入到非水电解质中时，可以提高过充电状态的二次电池的安全性。

公开(公告)号：US07217477B2

公开(公告)日：2007-05-15

申请号：US10312674

申请日：2002-05-22

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

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

IPC: H01M6/18 ,  H01M6/16

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

Abstract: 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.

Abstract translation: 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：US06960410B2

公开(公告)日：2005-11-01

申请号：US10380141

申请日：2002-05-08

Applicant: Hyeong-Jin Kim ,  Yeon-Hee Lee ,  Bong-Youl Chung ,  Young-Keun Kim

Inventor： Hyeong-Jin Kim ,  Yeon-Hee Lee ,  Bong-Youl Chung ,  Young-Keun Kim

IPC: H01M10/05 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/40 ,  H01M4/48

CPC classification number: H01M10/0525 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567

Abstract: The present invention relates to an electrolyte comprising a non-ionic surfactant and a lithium ion battery using the same, and more particularly, to a non-aqueous electrolyte for a lithium ion battery comprising a fluorine-based non-ionic surfactant. The lithium ion battery prepared according to the present invention uses an electrolyte comprising a fluorine-based non-ionic surfactant that is substituted with various functional groups at the end group as represented by a fluorine-based non-ionic surfactant represented by a Formula: wherein, R is hydrogen, an acetyl group, a methyl group or a benzoyl goup; and m and n are integers from 2 to 20. The surfactant can improve the interfacial property between an electrolyte and electrodes and impedance properties, and exhibits a high capacity and excellent charge/discharge properties.

Abstract translation: 本发明涉及包含非离子表面活性剂和使用其的锂离子电池的电解质，更具体地说，涉及包含氟基非离子表面活性剂的锂离子电池用非水电解质。 根据本发明制备的锂离子电池使用包含由末端基团上的各种官能团取代的氟基非离子表面活性剂的电解质，如由下式表示的氟基非离子表面活性剂：其中 R为氢，乙酰基，甲基或苯甲酰基; 并且m和n为2-20的整数。表面活性剂可以改善电解质和电极之间的界面性质和阻抗特性，并表现出高容量和优异的充电/放电性能。

公开(公告)号：US20130011727A1

公开(公告)日：2013-01-10

申请号：US13618048

申请日：2012-09-14

Applicant: Sung Kyun CHANG ,  Seung Tae Hong ,  Hyeong Jin Kim ,  Duk Hyun Ryu ,  Eun Young Goh ,  Ho Chun Lee ,  Jun Yong Jeong ,  Jin Hee Yeon ,  Hyung Keun Lee

Inventor： Sung Kyun CHANG ,  Seung Tae Hong ,  Hyeong Jin Kim ,  Duk Hyun Ryu ,  Eun Young Goh ,  Ho Chun Lee ,  Jun Yong Jeong ,  Jin Hee Yeon ,  Hyung Keun Lee

IPC: H01M4/525 ,  H01M10/056 ,  H01M10/052

CPC classification number: H01M4/525 ,  H01M4/131 ,  H01M4/136 ,  H01M4/364 ,  H01M4/366 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/0566 ,  Y02E60/122

Abstract: Disclosed is a lithium secondary battery, which is low in capacity loss after overdischarge, having excellent capacity restorability after overdischarge and shows an effect of preventing a battery from swelling at a high temperature.

Abstract translation: 公开了一种锂二次电池，其在过放电后的容量损失小，在过放电之后具有优异的容量恢复性，并且显示出防止电池在高温下膨胀的效果。