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1. 发明申请

US20070072060A1 Apparatus for protection of secondary battery 有权
标题翻译：二次电池保护装置
公开(公告)号：US20070072060A1
公开(公告)日：2007-03-29
申请号：US11490359
申请日：2006-07-20
申请人： Sung Chang , Joon Lee , Jae Lee , Soo Ha , Jeong Cho , Sang Choy
发明人： Sung Chang , Joon Lee , Jae Lee , Soo Ha , Jeong Cho , Sang Choy
IPC分类号： H01M10/50 , G01K7/00
CPC分类号： H01M10/00 , H01M10/0525 , H01M10/443 , H01M10/486 , H01M2200/10 , H01M2200/105 , H02J7/0029
摘要： Disclosed 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. Thereby, when the temperature of the secondary battery increases due to any one of a change in external environment, external impacts, heat generation of the battery caused by internal defects, overcharge, and the like, the secondary battery is discharged into a safe state, so that it is possible to prevent the secondary battery from swelling, inflammation, or detonation to thus improving safety.
摘要翻译：公开了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变化，外部冲击等而暴露于超过工作范围的高温时，或由于内部缺陷引起的热量的自发产生加热，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。因此，当由于外部环境的变化，外部冲击，由内部缺陷引起的电池的发热，过度充电等中的任何一种而使二次电池的温度升高时，二次电池被放电到安全状态，使得可以防止二次电池膨胀，炎症或爆炸，从而提高安全性。

2. 发明申请

US20060197506A1 Apparatus and method for protecting secondary battery 有权
公开(公告)号：US20060197506A1
公开(公告)日：2006-09-07
申请号：US11361819
申请日：2006-02-24
申请人： Sung Chang , Jae Lee , Joon Lee , Soo Ha , Sang Choy , Jeong Cho
发明人： Sung Chang , Jae Lee , Joon Lee , Soo Ha , Sang Choy , Jeong Cho
IPC分类号： H02J7/00
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.

3. 发明申请

US20050260486A1 Safety element for battery and battery with the same 有权
标题翻译：电池和电池的安全元件相同
公开(公告)号：US20050260486A1
公开(公告)日：2005-11-24
申请号：US11132468
申请日：2005-05-19
申请人： Jeong Cho , Jae Lee , Sung Chang , Min Jang , Sun Shin , Eui Bang , Joon Lee , Soo Ha
发明人： Jeong Cho , Jae Lee , Sung Chang , Min Jang , Sun Shin , Eui Bang , Joon Lee , Soo Ha
IPC分类号： H01M10/05 , H01C7/04 , H01M2/20 , H01M2/34 , H01M6/50 , H01M10/42 , H01M10/44 , H01M10/50
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。

4. 发明申请

US20050255376A1 Battery safety device and battery having the same 有权
标题翻译：电池安全装置和电池具有相同的功能
公开(公告)号：US20050255376A1
公开(公告)日：2005-11-17
申请号：US11107685
申请日：2005-04-15
申请人： Jeong Cho , Sung Chang , Min Jang , Jae Lee , Joon Lee , Soo Ha
发明人： Jeong Cho , Sung Chang , Min Jang , Jae Lee , Joon Lee , Soo Ha
IPC分类号： H01M2/02 , H01M2/10 , H01M2/30 , H01M2/34 , H01M10/44 , H01M10/50
CPC分类号： H01M2/34 , H01M2/345 , H01M10/0525 , Y10T307/786
摘要： Disclosed is a battery safety device adapted to form an electrical circuit when compressed by a predetermined pressure or higher and convert the charged state of a battery to the discharged state, a battery having the safety device, and a method for adjusting the safety of a battery by converting the charged state of the battery to the discharged state, before the battery is damaged by a pressure, through an electrical circuit formed on a safety device by means of the pressure. The safety device has 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 a 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：本发明公开了一种电池安全装置，其适于在被预定压力或更高压缩时形成电路，并将电池的充电状态转换为放电状态，具有该安全装置的电池以及用于调节电池安全性的方法通过在电池被压力损坏之前，通过借助于压力在安全装置上形成的电路将电池的充电状态转换为放电状态。安全装置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起火或爆炸，通过进行在电池被外部冲击或外部压力损坏之前，电池的电流流向安全装置并放电。

5. 发明申请

US20060275653A1 Protection circuit for secondary battery and secondary battery comprising the same 有权
公开(公告)号：US20060275653A1
公开(公告)日：2006-12-07
申请号：US11431360
申请日：2006-05-10
申请人： Sung Chang , Jae Lee , Joon Lee , Soo Ha , Jeong Cho
发明人： Sung Chang , Jae Lee , Joon Lee , Soo Ha , Jeong Cho
IPC分类号： H01M10/50 , H01H79/00 , H01H61/00
CPC分类号： H01M10/443 , H01M2/34 , H01M10/052
摘要： Disclosed is a protection circuit for a secondary battery and a secondary battery having the same, which can interrupt electric current input into the secondary battery when the temperature of the secondary battery increases due to an overcharge, and also can protect the secondary battery in the case where the already charged secondary battery is exposed to a high temperature due to the increase of an external or internal temperature of the secondary battery. The protection circuit includes: means having one end connected to a first electrode of the secondary battery, for restricting electric current; switching means for connecting a second electrode of the secondary battery to a first outer electrode, or to the current restriction means in response to temperature; and a conducting wire for connecting the first electrode of the secondary battery to a second outer electrode.

6. 发明申请

US20060083983A1 Secondary battery having an improved safety 有权
标题翻译：二次电池具有改进的安全性
公开(公告)号：US20060083983A1
公开(公告)日：2006-04-20
申请号：US11247881
申请日：2005-10-10
申请人： Sung Chang , Jae Lee , Joon Lee , Soo Ha , Jeong Cho
发明人： Sung Chang , Jae Lee , Joon Lee , Soo Ha , Jeong Cho
IPC分类号： H01M2/02 , H01M2/26 , H01M10/50
CPC分类号： H01M2/0277 , H01M2/0272 , H01M2/0275 , H01M2/0285 , H01M2/0287 , H01M10/0525
摘要： Disclosed is a secondary battery. The secondary battery includes a battery can serving as a positive electrode terminal or a negative electrode terminal of the secondary battery, an electrically conductive substrate provided at an outer portion of the battery can, and a nonconductive film interposed between the battery can and the electrically conductive substrate in order to insulate the electrically conductive substrate from the battery can, wherein the electrically conductive substrate is electrically connected to an electrode terminal having polarity opposite to that of the battery can. Safety of the secondary battery is ensured even if the secondary battery is subject to external parameters, such as penetration of a sharp tool (e.g. a nail or a drill tip), pressing force of a tool (e.g. a nipper), external impact, and exposure to the high temperature.
摘要翻译：公开了二次电池。二次电池包括用作二次电池的正极端子或负极端子的电池壳体，设置在电池壳体的外部的导电性基板，以及介于电池壳体与导电性电极之间的非导电性膜基板，以使导电基板与电池壳体绝缘，其中导电基板电连接到具有与电池壳体极性相反的极性的电极端子。即使二次电池受到诸如尖锐工具（例如钉子或钻头）的穿透，工具（例如钳子）的挤压力，外部冲击和外部冲击的外部参数的影响，也可确保二次电池的安全性暴露于高温。

7. 发明申请

US20060051660A1 Safety device for preventing overcharge and secondary battery therewith 有权
标题翻译：用于防止过充电和二次电池的安全装置
公开(公告)号：US20060051660A1
公开(公告)日：2006-03-09
申请号：US11221185
申请日：2005-09-07
申请人： Sung Chang , Jae Lee , Joon Lee , Soo Ha , Jeong Cho
发明人： Sung Chang , Jae Lee , Joon Lee , Soo Ha , Jeong Cho
IPC分类号： H01M10/50 , H01H85/02
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.
摘要翻译：公开了一种安全装置和使用该装置的二次电池。安全装置包括：当两端的电压差超过预定电压电平时产生热量的电压敏感加热装置和根据温度具有可逆电流导通/截止功能的温度敏感装置。感温装置与电压敏感加热装置耦合，使得感温装置检测从感应加热装置产生的热量。

8. 发明申请

US20060043935A1 Safety device for preventing overcharge of secondary batteries and secondary batteries therewith 有权
标题翻译：用于防止二次电池和二次电池的过充电的安全装置
公开(公告)号：US20060043935A1
公开(公告)日：2006-03-02
申请号：US11209462
申请日：2005-08-23
申请人： Sung Chang , Jae Lee , Joon Lee , Soo Ha , Jeong Cho
发明人： Sung Chang , Jae Lee , Joon Lee , Soo Ha , Jeong Cho
IPC分类号： H02J7/00
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。

9. 发明申请

US20060038534A1 Secondary battery having constant-voltage device 有权
标题翻译：二次电池具有恒压装置
公开(公告)号：US20060038534A1
公开(公告)日：2006-02-23
申请号：US11208059
申请日：2005-08-19
申请人： Sung Chang , Jeong Cho , Jae Lee , Joon Lee , Eui Bang , Soo Ha
发明人： Sung Chang , Jeong Cho , Jae Lee , Joon Lee , Eui Bang , Soo 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。

10. 发明申请

US20050287440A1 Anode active material with improved electrochemical properties and electrochemical device comprising the same 有权
标题翻译：具有改善的电化学性质的阳极活性材料和包含其的电化学装置
公开(公告)号：US20050287440A1
公开(公告)日：2005-12-29
申请号：US11112170
申请日：2005-04-22
申请人： Sung Chang , Hyeong Kim , Sang Choy , Jeong Cho
发明人： Sung Chang , Hyeong Kim , Sang Choy , Jeong Cho
IPC分类号： H01M4/02 , H01M4/04 , H01M4/36 , H01M4/38 , H01M4/40 , H01M4/48 , H01M4/50 , H01M4/52 , H01M4/62 , H01M10/36 , H01M10/38 , H01M10/40 , 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。

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