Lithium secondary battery having PTC powder and manufacturing method thereof
    1.
    发明申请
    Lithium secondary battery having PTC powder and manufacturing method thereof 审中-公开
    具有PTC粉末的锂二次电池及其制造方法

    公开(公告)号:US20050079422A1

    公开(公告)日:2005-04-14

    申请号:US10958018

    申请日:2004-10-04

    摘要: Disclosed is a lithium secondary battery with high stability and excellent performance, and its manufacturing method. The lithium secondary battery includes a positive electrode including a positive electrode active material, a conductive material and a binding material and a negative electrode including a negative electrode active material and a binding material, and PTC powder is contained in at least one of the positive electrode and the negative electrode. If the battery is overheated due to overcharge, the PTC powder contained in the positive electrode and/or the negative electrode abruptly increases electric resistance to break electric current, thereby preventing further increase of temperature and resultantly preventing fire or explosion. In addition, the conductive material is contained separately from the PTC powder, performance of the battery is not deteriorated in the normal operation.

    摘要翻译: 公开了具有高稳定性和优异性能的锂二次电池及其制造方法。 锂二次电池包括正极,包括正极活性物质,导电材料和粘合材料,负极包括负极活性物质和粘结材料,PTC粉末包含在至少一个正极 和负极。 如果由于过充电导致电池过热,则包含在正极和/或负极中的PTC粉末突然增加电阻以断开电流,从而防止温度的进一步升高,从而防止火灾或爆炸。 此外,导电材料与PTC粉末分开地包含,在正常操作中电池的性能不会劣化。

    Thermistor having symmetrical structure
    3.
    发明授权
    Thermistor having symmetrical structure 失效
    具有对称结构的热敏电阻

    公开(公告)号:US07145431B2

    公开(公告)日:2006-12-05

    申请号:US10724484

    申请日:2003-11-28

    IPC分类号: H01C7/10

    CPC分类号: H01C1/1406 H01C7/02

    摘要: A thermistor is disclosed, which comprises a resistance element having upper and lower surfaces and showing a resistance varying characteristics according to the change of temperature; first and second conductive layers formed on the upper surface of the resistance element and engaged to each other with a non-conductive gap interposed therebetween; first and second electrodes formed on the lower surface of the resistance element and electrically separated from each other; a first connector for electrically connecting the first conductive layer to the first electrode; and a second connector for electrically connecting the second conductive layer to the second electrode. Thus, the thermistor has a structurally point-symmetric shape, so it is possible to prevent the Tombstone phenomenon, caused by an asymmetric structure. Since the conductive layers having opposite polarities are engaged to each other with the non-conductive gap therebetween, the flow of current is increased and the resistance of the thermistor is decreased.

    摘要翻译: 公开了一种热敏电阻器,其包括具有上表面和下表面的电阻元件,并且根据温度变化显示出电阻变化特性; 第一和第二导电层形成在电阻元件的上表面上并且彼此接合,并具有插入其间的非导电间隙; 第一和第二电极形成在电阻元件的下表面上并彼此电分离; 用于将所述第一导电层电连接到所述第一电极的第一连接器; 以及用于将所述第二导电层电连接到所述第二电极的第二连接器。 因此,热敏电阻具有结构上点对称的形状,因此可以防止由不对称结构引起的墓碑现象。 由于具有相反极性的导电层之间具有非导电间隙而彼此接合,所以电流的流动增加并且热敏电阻的电阻降低。

    Surface-mounted thermistor and manufacturing method thereof
    4.
    发明申请
    Surface-mounted thermistor and manufacturing method thereof 失效
    表面贴装热敏电阻及其制造方法

    公开(公告)号:US20050057338A1

    公开(公告)日:2005-03-17

    申请号:US10859505

    申请日:2004-06-01

    摘要: A thermistor, which is to be mounted on a PCB, for protecting other circuit elements is disclosed. Electrode patterns separately formed on both surfaces of a film resistance element are respectively shaped into two parts which are engaged to each other with a non-conductive gap interposed therebetween. Thus, a Tombstone phenomenon caused by asymmetric structure may be fundamentally prevented. Grooves are formed in both sides of the thermistor, and connection portions for electrically connecting the electrodes formed on both surfaces of the thermistor are formed through the inside of the grooves or through the sides except the grooves. Thus, though a crack arises in the connection portion, it is possible to prevent the crack from being propagated to the entire connection portion along the side of the thermistor.

    摘要翻译: 公开了一种要安装在PCB上的热敏电阻,用于保护其他电路元件。 分别形成在膜电阻元件的两个表面上的电极图案分别成形为彼此接合的两个部分,其间插入非导电间隙。 因此,可以从根本上防止由不对称结构引起的墓碑现象。 在热敏电阻的两侧形成槽,并且通过槽的内部或通过除了凹槽之外的侧面形成用于电连接形成在热敏电阻的两个表面上的电极的连接部。 因此,尽管在连接部分发生裂缝,但是可以防止裂纹沿着热敏电阻的一侧传播到整个连接部分。

    Surface-mounted thermistor and manufacturing method thereof
    5.
    发明申请
    Surface-mounted thermistor and manufacturing method thereof 审中-公开
    表面贴装热敏电阻及其制造方法

    公开(公告)号:US20070103269A1

    公开(公告)日:2007-05-10

    申请号:US11642771

    申请日:2006-12-19

    IPC分类号: H01C7/13 H01C7/10

    摘要: A thermistor, which is to be mounted on a PCB, for protecting other circuit elements is disclosed. Electrode patterns separately formed on both surfaces of a film resistance element are respectively shaped into two parts which are engaged to each other with a non-conductive gap interposed therebetween. Thus, a Tombstone phenomenon caused by asymmetric structure may be fundamentally prevented. Grooves are formed in both sides of the thermistor, and connection portions for electrically connecting the electrodes formed on both surfaces of the thermistor are formed through the inside of the grooves or through the sides except the grooves. Thus, though a crack arises in the connection portion, it is possible to prevent the crack from being propagated to the entire connection portion along the side of the thermistor.

    摘要翻译: 公开了一种要安装在PCB上的热敏电阻,用于保护其他电路元件。 分别形成在膜电阻元件的两个表面上的电极图案分别成形为彼此接合的两个部分,其间插入非导电间隙。 因此,可以从根本上防止由不对称结构引起的墓碑现象。 在热敏电阻的两侧形成槽,并且通过槽的内部或通过除了凹槽之外的侧面形成用于电连接形成在热敏电阻的两个表面上的电极的连接部。 因此,尽管在连接部分发生裂缝,但是可以防止裂纹沿着热敏电阻的一侧传播到整个连接部分。

    Thermistor having improved lead structure and secondary battery having the thermistor
    6.
    发明授权
    Thermistor having improved lead structure and secondary battery having the thermistor 失效
    具有改进的引线结构的热敏电阻和具有该热敏电阻的二次电池

    公开(公告)号:US07173512B2

    公开(公告)日:2007-02-06

    申请号:US10888309

    申请日:2004-07-09

    IPC分类号: H01C7/10

    CPC分类号: H01C7/008 H01C1/144

    摘要: A thermistor of which resistance is changed depending on temperature and a secondary battery to which the thermistor is attached are disclosed. The thermistor is attached to an object via a lead which is made of different kinds of materials. The lead is configured so that a part of the lead to be united to the thermistor electrode is mainly made of the same material as the electrode and a part of the lead to be united to the object is mainly made of the same material as the surface of the object. Thus, the thermistor may be simply attached to the object only using the ultrasonic welding, thereby remarkably reducing junction inferiorities.

    摘要翻译: 公开了根据温度改变电阻的热敏电阻和附接有热敏电阻的二次电池。 热敏电阻通过由不同种类的材料制成的引线附着到物体上。 引线被配置为使得与热敏电阻电极相结合的引线的一部分主要由与电极相同的材料制成,并且与物体结合的引线的一部分主要由与表面相同的材料制成 的对象。 因此,热敏电阻可以仅使用超声波焊接简单地附接到物体,从而显着地减少了接合性。

    PTC current limiting device having flashover prevention structure
    8.
    发明申请
    PTC current limiting device having flashover prevention structure 审中-公开
    具有防止闪络结构的PTC限流装置

    公开(公告)号:US20060152331A1

    公开(公告)日:2006-07-13

    申请号:US11330516

    申请日:2006-01-11

    IPC分类号: H01C7/13

    CPC分类号: H01C7/027 H01C1/1406

    摘要: Disclosed is a PTC (Positive Temperature Coefficient) current limiting device, which limits a current using PTC characteristics. The device includes a PTC element having the PTC characteristics; and upper and lower contact electrodes arranged to face each other with the PTC element being interposed therebetween, wherein, assuming that a distance from an end of the upper contact electrode to an end of the PTC element is a1, a distance from an end of the lower contact electrode to the end of the PTC element is a2, a thickness of the PTC element is b, and L=a1+a2+b, the following equations are satisfied: V/L

    摘要翻译: 公开了一种PTC(正温度系数)限流装置,其限制使用PTC特性的电流。 该装置包括具有PTC特性的PTC元件; 以及上部和下部接触电极,其间设置有PTC元件彼此面对,其中,假设从上部接触电极的端部到PTC元件的端部的距离为a1,距离 下部接触电极到PTC元件的端部为a2,PTC元件的厚度为b,并且L = a1 + a2 + b,满足以下等式:V / L <10且V / b <50,其中 V是PTC限流装置的额定电压,a1,a2和b的单位为mm,V的单位为伏特。 该PTC限流装置可以防止电极之间产生闪络。

    PTC current limiting device having molding part made of insulating material
    9.
    发明申请
    PTC current limiting device having molding part made of insulating material 审中-公开
    PTC限流装置具有由绝缘材料制成的成型部件

    公开(公告)号:US20060152330A1

    公开(公告)日:2006-07-13

    申请号:US11329731

    申请日:2006-01-10

    IPC分类号: H01C7/13

    CPC分类号: H01C1/06 H01C1/1406 H01C7/027

    摘要: Disclosed is a PTC (Positive Temperature Coefficient) current limiting device for limiting a current by use of PTC characteristics, which includes a PTC element having the PTC characteristics; a pair of electrode units arranged on both sides to face each other with the PTC element being interposed therebetween; and a molding part prepared around the PTC element and the electrode units to surround at least an interface region between the PTC element and the electrode units, the molding part being made of elastic insulating material. The molding part is made of an elastic insulating material or any insulating materials selected from vacuum, gas and oil. Thus, this device may effectively restrain an arc generated while limiting overcurrent or short circuit current, and also prevent flashover between electrodes.

    摘要翻译: 公开了一种通过使用PTC特性限制电流的PTC(正温度系数)限流装置,其包括具有PTC特性的PTC元件; 布置在两侧的一对电极单元,其间夹着PTC元件彼此相对; 以及围绕PTC元件和电极单元制备的至少围绕PTC元件和电极单元之间的界面区域的模制部件,该模制部件由弹性绝缘材料制成。 模制部件由弹性绝缘材料或选自真空,气体和油的任何绝缘材料制成。 因此,该装置可以有效地抑制在限制过电流或短路电流的同时产生的电弧,并且还防止电极之间的闪络。