公开(公告)号：US07629082B2

公开(公告)日：2009-12-08

申请号：US11112170

申请日：2005-04-22

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

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

IPC分类号： H01M4/58

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US07754385B2

公开(公告)日：2010-07-13

申请号：US12535207

申请日：2009-08-04

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

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

IPC分类号： H01M4/58

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US08673469B2

公开(公告)日：2014-03-18

申请号：US11490359

申请日：2006-07-20

申请人： Sung Kyun Chang ,  Joon Hwan Lee ,  Jae Hyun Lee ,  Soo Hyun Ha ,  Jeong Ju Cho ,  Sang Hoon Choy

发明人： Sung Kyun Chang ,  Joon Hwan Lee ,  Jae Hyun Lee ,  Soo Hyun Ha ,  Jeong Ju Cho ,  Sang Hoon Choy

IPC分类号： H01M10/50 ,  H01M10/00

CPC分类号： H01M10/00 ,  H01M10/0525 ,  H01M10/443 ,  H01M10/486 ,  H01M2200/10 ,  H01M2200/105 ,  H02J7/0029

摘要： The present invention is an apparatus for protecting a secondary battery, in which, when the secondary battery such as a lithium-ion secondary battery is exposed to high temperature exceeding a working range due to a change in external environment, external impacts, and so on, or heated due to spontaneous generation of heat caused by internal defects, the secondary battery is discharged. The apparatus includes a thyristor or transistor having an anode and a cathode connected both terminals of the secondary battery respectively, and shorting both terminals of the secondary battery when gate current is supplied, and a temperature sensor detecting temperature of the secondary battery and supplying the gate current to the thyristor or transistor when the detected temperature is higher than predetermined temperature.

摘要翻译： 本发明是一种用于保护二次电池的装置，其中当诸如锂离子二次电池的二次电池由于外部环境的变化而暴露于超过工作范围的高温时，外部冲击等 或由于内部缺陷引起的自发产生的热而被加热，二次电池被排出。 该装置包括分别连接二次电池的两个端子的阳极和阴极的晶闸管或晶体管，并且当提供栅极电流时短路二次电池的两个端子，以及温度传感器检测二次电池的温度并提供栅极 当检测到的温度高于预定温度时，电流流向晶闸管或晶体管。

公开(公告)号：US07589501B2

公开(公告)日：2009-09-15

申请号：US11361819

申请日：2006-02-24

申请人： Sung Kyun Chang ,  Jae Hyun Lee ,  Joon Hwan Lee ,  Soo Hyun Ha ,  Sang Hoon Choy ,  Jeong Ju Cho

发明人： Sung Kyun Chang ,  Jae Hyun Lee ,  Joon Hwan Lee ,  Soo Hyun Ha ,  Sang Hoon Choy ,  Jeong Ju Cho

IPC分类号： H01M10/46

CPC分类号： H01M10/425 ,  H01M10/46 ,  H02J7/0031 ,  H02J2007/0037

摘要： The present invention relates to an apparatus for protecting a secondary battery by preventing overcharge of the secondary battery.The apparatus for protecting a secondary battery includes: a secondary battery; a power supply, connected with both electrode terminals of the secondary battery, for providing a charging voltage and a charging current to the secondary battery to charge the secondary battery; and a secondary battery protection unit for shorting the power supply thereby to stop charging the secondary battery if a charging voltage of the secondary battery is above a predetermined voltage.

摘要翻译： 本发明涉及通过防止二次电池的过充电来保护二次电池的装置。 用于保护二次电池的装置包括：二次电池; 与二次电池的两个电极端子连接的用于向二次电池提供充电电压和充电电流以对二次电池充电的电源; 以及二次电池保护单元，用于在二次电池的充电电压高于预定电压的情况下短路电源从而停止对二次电池充电。

公开(公告)号：US09614254B2

公开(公告)日：2017-04-04

申请号：US11221185

申请日：2005-09-07

申请人： Sung Kyun Chang ,  Jae Hyun Lee ,  Joon Hwan Lee ,  Soo Hyun Ha ,  Jeong Ju Cho

发明人： Sung Kyun Chang ,  Jae Hyun Lee ,  Joon Hwan Lee ,  Soo Hyun Ha ,  Jeong Ju Cho

IPC分类号： H01M10/42 ,  H01M10/48 ,  H01M10/637 ,  H01M10/623 ,  H01M10/052

CPC分类号： H01M10/42 ,  H01M10/052 ,  H01M10/425 ,  H01M10/486 ,  H01M10/623 ,  H01M10/637 ,  H01M2200/00 ,  H01M2200/10 ,  H01M2200/101 ,  H01M2200/106 ,  Y02E60/122 ,  Y02T10/7011

摘要： Disclosed are a safety device and a secondary battery using the same. The safety device includes a voltage sensitive heating device generating heat when a voltage difference between both ends thereof exceeds a predetermined voltage level and a temperature sensitive device having a reversible current ON/OFF function according to a temperature. The temperature sensitive device is coupled with the voltage sensitive heating device such that the temperature sensitive device detects the heat generated from the voltage sensitive heating device.

公开(公告)号：US07745040B2

公开(公告)日：2010-06-29

申请号：US11209462

申请日：2005-08-23

申请人： Sung Kyun Chang ,  Jae Hyun Lee ,  Joon Hwan Lee ,  Soo Hyun Ha ,  Jeong Ju Cho

发明人： Sung Kyun Chang ,  Jae Hyun Lee ,  Joon Hwan Lee ,  Soo Hyun Ha ,  Jeong Ju Cho

IPC分类号： H01M2/10

CPC分类号： H01M2/34 ,  H01M10/48 ,  H01M10/613 ,  H01M10/637 ,  H01M2200/10 ,  H02J7/0029 ,  H02J2007/0037

摘要： An object of the present invention is to provide the device for protecting a secondary battery safely from overvoltage and overheating caused by the overcharge by using simple safety device, which provides a contacted safety device which connects between a constant voltage element showing a discharge characteristic in the state of overvoltage and a MIT (metal insulator transition) element showing a discharge characteristic in the state of overheating. Each of the constant voltage element and the MIT element are connected in parallel between a cathode lead and an anode lead of the secondary battery. The contacted safety device has a characteristic combining a discharge/heat dissipation characteristic of the constant voltage element and a discharge characteristic of the MIT element which immediately responds to the heat dissipation of the constant voltage element, resulting in effect of preventing overcharge advantageously since the contacted safety device makes discharge in terms of 2 factors of voltage and temperature in case of overcharge.

摘要翻译： 本发明的目的是提供一种用于通过使用简单的安全装置来安全地保护二次电池免于由过充电引起的过电压和过热的装置，该安全装置提供一个接触的安全装置，该安全装置连接在表现出 过电压状态和显示过热状态下的放电特性的MIT（金属绝缘体转变）元件。 恒压元件和MIT元件中的每一个并联连接在二次电池的阴极引线和阳极引线之间。 所接触的安全装置具有组合恒压元件的放电/散热特性和MIT元件的放电特性的特征，其立即响应于恒压元件的散热，从而有效地防止由于接触 在过充电的情况下，安全装置可以根据电压和温度的2个因素进行放电。

公开(公告)号：US07737661B2

公开(公告)日：2010-06-15

申请号：US11208059

申请日：2005-08-19

申请人： Sung Kyun Chang ,  Jeong Ju Cho ,  Jae Hyun Lee ,  Joon Hwan Lee ,  Eui Yong Bang ,  Soo Hyun Ha

发明人： Sung Kyun Chang ,  Jeong Ju Cho ,  Jae Hyun Lee ,  Joon Hwan Lee ,  Eui Yong Bang ,  Soo Hyun Ha

IPC分类号： H02J7/00

CPC分类号： H01M2/34 ,  H01M10/4235

摘要： Disclosed is a secondary battery having a constant-voltage device for preventing the secondary battery from being excessively overcharged. The breakdown voltage of the constant-voltage device is lower than the explosion or ignition voltage of the secondary battery, so the discharge operation may occur before the secondary battery is exploded or ignited even if the voltage of the secondary battery rises above the overcharge voltage, thereby protecting the secondary battery from explosion or ignition. The leakage current value of the constant-voltage device is less than 0.05% of the capacity value of the secondary battery under the maximum charge voltage of the secondary battery, or the breakdown voltage of the constant-voltage device is higher than the maximum charge voltage of the secondary battery. Thus, the constant-voltage device rarely generates the leakage current even if the secondary battery has been charged with the maximum charge voltage.

摘要翻译： 公开了具有用于防止二次电池过度充电的恒压装置的二次电池。 恒压装置的击穿电压低于二次电池的爆炸或点火电压，因此即使二次电池的电压升高到过充电电压以上，放电操作也可能在二次电池分解或点燃之前发生， 从而保护二次电池免受爆炸或点火。 在二次电池的最大充电电压下，恒压装置的漏电电流值小于二次电池容量值的0.05％，或恒压装置的击穿电压高于最大充电电压 的二次电池。 因此，即使二次电池被充电最大充电电压，恒压装置也很少产生漏电流。

公开(公告)号：US08048551B2

公开(公告)日：2011-11-01

申请号：US11107685

申请日：2005-04-15

申请人： Jeong Ju Cho ,  Sung Kyun Chang ,  Min Chul Jang ,  Jae Hyun Lee ,  Joon Hwan Lee ,  Soo Hyun Ha

发明人： Jeong Ju Cho ,  Sung Kyun Chang ,  Min Chul Jang ,  Jae Hyun Lee ,  Joon Hwan Lee ,  Soo Hyun Ha

IPC分类号： H01M2/00 ,  H01M6/00 ,  H01M10/00 ,  H01H35/00

CPC分类号： H01M2/34 ,  H01M2/345 ,  H01M10/0525 ,  Y10T307/786

摘要： Disclosed is a battery safety device having a first metal plate, a second metal plate, and a pressure-sensitive conducting film interposed between both metal plates and adapted to exhibit electrical conductivity when a predetermined pressure or higher is applied. The first and second metal plates are electrically connected to the positive and negative electrodes of the battery, respectively. The safety device connected to a battery prevents the battery from being damaged or at least from igniting or exploding, even when an external impact caused by pressure, a nail, or a nipper or an external pressure is applied to the battery, by conducting the current of the battery to the safety device and discharging the battery before the battery is damaged by the external impact or external pressure.

摘要翻译： 公开了一种电池安全装置，其具有插入在两个金属板之间的第一金属板，第二金属板和压敏导电膜，并且当施加预定压力或更高压力时适用于显示导电性。 第一和第二金属板分别电连接到电池的正极和负极。 连接到电池的安全装置即使当通过压力，钉子或钳子或外部压力引起的外部冲击施加到电池时，也可以防止电池损坏或至少不被点燃或爆炸，通过进行电流 的电池到安全装置，并在电池被外部冲击或外部压力损坏之前对电池进行放电。

公开(公告)号：US07759006B2

公开(公告)日：2010-07-20

申请号：US11181045

申请日：2005-07-14

申请人： Sung Kyun Chang ,  Jeong Ju Cho

发明人： Sung Kyun Chang ,  Jeong Ju Cho

IPC分类号： H01M4/58

CPC分类号： C01B25/37 ,  C01B25/45 ,  H01M4/5825 ,  H01M10/052

摘要： Disclosed is a compound represented by the following formula 1. A lithium secondary battery using the same compound as electrode active material, preferably as cathode active material, is also disclosed. LiMP1-xAxO4  [Formula 1] wherein M is a transition metal, A is an element having an oxidation number of +4 or less and 0

摘要翻译： 公开了由下式1表示的化合物。还公开了使用与电极活性物质相同的化合物的锂二次电池，优选作为阴极活性物质。 LiMP1-xAxO4 [式1]其中M为过渡金属，A为氧化数为+4以下且0

公开(公告)号：US07629073B2

公开(公告)日：2009-12-08

申请号：US11132468

申请日：2005-05-19

申请人： Jeong Ju Cho ,  Jae Hyun Lee ,  Sung Kyun Chang ,  Min Chul Jang ,  Sun Sik Shin ,  Eui Yong Bang ,  Joon Hwan Lee ,  Soo Hyun Ha

发明人： Jeong Ju Cho ,  Jae Hyun Lee ,  Sung Kyun Chang ,  Min Chul Jang ,  Sun Sik Shin ,  Eui Yong Bang ,  Joon Hwan Lee ,  Soo Hyun Ha

IPC分类号： H01M10/50 ,  H01M2/00

CPC分类号： H01M10/425 ,  H01C7/045 ,  H01C7/047 ,  H01M10/0525 ,  H01M10/4257 ,  H01M10/443 ,  H01M2200/10 ,  H02H7/18 ,  H02H9/041

摘要： Disclosed are a safety element for a battery, which is provided with material having a Metal-Insulator Transition (MIT) characteristic where resistance abruptly drops at or above a certain temperature, and a battery with such a safety element. This battery with an MIT safety element is turned into a stable discharged state when it is exposed to an elevated temperature or a battery temperature rises due to external impact, so that it can ensure its safety.

摘要翻译： 公开了一种电池的安全元件，其具有金属绝缘体转变（MIT）特性的材料，其中电阻突然下降等于或高于某一温度，以及具有这种安全元件的电池。 这种具有MIT安全元件的电池在暴露于高温或电池温度由于外部冲击而升高时变为稳定的放电状态，从而可以确保其安全。