Electrochemical battery pack with reduced magnetic field emission and corresponding devices
    1.
    发明授权
    Electrochemical battery pack with reduced magnetic field emission and corresponding devices 有权
    具有减少磁场发射的电化学电池组和相应的器件

    公开(公告)号:US08642205B2

    公开(公告)日:2014-02-04

    申请号:US12853055

    申请日:2010-08-09

    IPC分类号: H01M2/02 H01M2/22 H01M2/30

    CPC分类号: H01M2/30 H01M10/04 H01M10/42

    摘要: A battery pack with reduced magnetic field emissions includes a plurality of cells (1301,1302) coupled electrically together by a first electrical conductor (1307) and a second electrical conductor (1308). The first electrical conductor (1307) couples positive terminals (1305,1306) to a terminal block (1311), while the second electrical conductor (1308) couples the negative terminals (1303,1304) to the terminal block (1311). Each cell (1301,1302) contains an asymmetrical internal electrode construction (1313,1314) having electrical tabs (502,503) coupled to a cathode and anode. The cells (1301,1302) can be arranged with their corresponding asymmetrical internal electrode constructions (1313,1314) oriented in different directions to reduce magnetic field emissions. The first electrical conductor (1307) and second electrical conductor (1308) can be routed such that magnetic fields generated by discharge currents tend to reduce other magnetic fields produced by other components within the battery pack.

    摘要翻译: 具有减小的磁场发射的电池组包括通过第一电导体(1307)和第二电导体(1308)电连接的多个电池单元(1301,1302)。 第一电导体(1307)将正端子(1305,1306)耦合到端子块(1311),而第二电导体(1308)将负端子(1303,1304)耦合到端子块(1311)。 每个单元(1301,1302)包含具有耦合到阴极和阳极的电接头(502,503)的不对称内部电极结构(1313,1314)。 电池(1301,1302)可以布置成其对应的不对称内部电极结构(1313,1314)定向在不同的方向以减小磁场发射。 可以布置第一电导体(1307)和第二电导体(1308),使得由放电电流产生的磁场倾向于减少由电池组内的其它部件产生的其它磁场。

    Electrochemical Battery Pack with Reduced Magnetic Field Emission and Corresponding Devices
    2.
    发明申请
    Electrochemical Battery Pack with Reduced Magnetic Field Emission and Corresponding Devices 有权
    具有减少磁场发射的电化学电池组和相应的装置

    公开(公告)号:US20120033845A1

    公开(公告)日:2012-02-09

    申请号:US12853055

    申请日:2010-08-09

    IPC分类号: H04R1/02 H01M2/30

    CPC分类号: H01M2/30 H01M10/04 H01M10/42

    摘要: A battery pack with reduced magnetic field emissions includes a plurality of cells (1301,1302) coupled electrically together by a first electrical conductor (1307) and a second electrical conductor (1308). The first electrical conductor (1307) couples positive terminals (1305,1306) to a terminal block (1311), while the second electrical conductor (1308) couples the negative terminals (1303,1304) to the terminal block (1311). Each cell (1301,1302) contains an asymmetrical internal electrode construction (1313,1314) having electrical tabs (502,503) coupled to a cathode and anode. The cells (1301,1302) can be arranged with their corresponding asymmetrical internal electrode constructions (1313,1314) oriented in different directions to reduce magnetic field emissions. The first electrical conductor (1307) and second electrical conductor (1308) can be routed such that magnetic fields generated by discharge currents tend to reduce other magnetic fields produced by other components within the battery pack.

    摘要翻译: 具有减小的磁场发射的电池组包括通过第一电导体(1307)和第二电导体(1308)电连接的多个电池单元(1301,1302)。 第一电导体(1307)将正端子(1305,1306)耦合到端子块(1311),而第二电导体(1308)将负端子(1303,1304)耦合到端子块(1311)。 每个单元(1301,1302)包含具有耦合到阴极和阳极的电接头(502,503)的不对称内部电极结构(1313,1314)。 电池(1301,1302)可以布置成其对应的不对称内部电极结构(1313,1314)定向在不同的方向以减小磁场发射。 可以布置第一电导体(1307)和第二电导体(1308),使得由放电电流产生的磁场倾向于减少由电池组内的其它部件产生的其它磁场。

    Electrochemical Cell with Reduced Magnetic Field Emission and Corresponding Devices
    3.
    发明申请
    Electrochemical Cell with Reduced Magnetic Field Emission and Corresponding Devices 审中-公开
    具有减少磁场发射的电化学电池和相应的装置

    公开(公告)号:US20110262779A1

    公开(公告)日:2011-10-27

    申请号:US12916573

    申请日:2010-10-31

    IPC分类号: H01M2/00

    摘要: A battery pack having reduced magnetic emitted noise includes a housing having an electrode assembly (700) disposed therein. The electrode assembly (700) includes a cell stack comprising a cathode (701) and an anode (702) with a separator disposed therebetween. The cell stack of the electrode assembly (700) has a first end (705) and a second end (706). A first electrical conductor (703) coupled to the anode (702) at the first end (705) of the cell stack. A second electrical conductor (704) coupled to the cathode (701) at the first end (705) of the cell stack. The first electrical conductor (703) and second electrical conductor (704) can be configured with different lengths, geometrical shapes, or placement locations such that during discharge, current (711,712) passes across the cathode (701) and anode (702) in substantially opposite directions at a substantially similar magnitude so as to reduce magnetic field noise generated by the electrode assembly (700).

    摘要翻译: 具有减小的磁性发射噪声的电池组包括具有设置在其中的电极组件(700)的壳体。 电极组件(700)包括电池组,其包括阴极(701)和阳极(702),其间设置有隔板。 电极组件(700)的电池堆具有第一端(705)和第二端(706)。 在电池堆的第一端(705)处耦合到阳极(702)的第一电导体(703)。 在电池堆的第一端(705)处耦合到阴极(701)的第二电导体(704)。 第一电导体(703)和第二电导体(704)可以被配置为具有不同的长度,几何形状或放置位置,使得在放电期间,电流(711,712)基本上穿过阴极(701)和阳极(702) 以相当大小相似的方向,以便减小由电极组件(700)产生的磁场噪声。

    Charging method for extending battery life in the presence of high temperature

    公开(公告)号:US06894459B2

    公开(公告)日:2005-05-17

    申请号:US10628610

    申请日:2003-07-29

    IPC分类号: H02J7/00 H02J7/16

    CPC分类号: H02J7/0091 H02J7/0075

    摘要: A method of charging a battery is provided that alters the amount of energy stored within the battery based upon a temperature profile across time. Battery materials and components, like liquid electrolyte or electrodes for instance, can be damaged when a rechargeable cell is exposed to elevated temperatures for extended amounts of time, thereby reducing the overall amount of energy that may be stored within the cell. This method monitors stored energy capacity and temperature. When a fully-charged cell is held at a temperature that exceeds a predetermined temperature threshold for an extended amount of time, the method discharges the cell, thereby reducing the amount of energy stored within the cell. For example, when a single, lithium-ion cell is maintained at 4.2 V for over 10 hours, the method will discharge the cell by roughly 1% or 50 mV. The discharge may be either automatic, or at the prompt of a user.

    Charging method for extending battery life in the presence of high temperature
    5.
    发明申请
    Charging method for extending battery life in the presence of high temperature 有权
    充电方式可延长电池的使用寿命

    公开(公告)号:US20050024022A1

    公开(公告)日:2005-02-03

    申请号:US10628610

    申请日:2003-07-29

    IPC分类号: H02J7/00

    CPC分类号: H02J7/0091 H02J7/0075

    摘要: A method of charging a battery is provided that alters the amount of energy stored within the battery based upon a temperature profile across time. Battery materials and components, like liquid electrolyte or electrodes for instance, can be damaged when a rechargeable cell is exposed to elevated temperatures for extended amounts of time, thereby reducing the overall amount of energy that may be stored within the cell. This method monitors stored energy capacity and temperature. When a fully-charged cell is held at a temperature that exceeds a predetermined temperature threshold for an extended amount of time, the method discharges the cell, thereby reducing the amount of energy stored within the cell. For example, when a single, lithium-ion cell is maintained at 4.2 V for over 10 hours, the method will discharge the cell by roughly 1% or 50 mV. The discharge may be either automatic, or at the prompt of a user.

    摘要翻译: 提供一种对电池充电的方法,其基于时间上的温度曲线来改变存储在电池内的能量的量。 当可再充电电池暴露于升高的温度下延长的时间时,诸如液体电解质或电极的电池材料和组分可能被损坏,从而减少可能存储在电池内的总能量。 该方法监测储存的能量容量和温度。 当完全充电的电池被保持在超过预定温度阈值的温度下延长的时间时,该方法将电池放电,从而减少存储在电池内的能量的量。 例如,当将单个锂离子电池保持在4.2V超过10小时时,该方法将使电池放电约1%或50mV。 放电可以是自动的,也可以是用户的提示。

    Battery pack with temperature activated boost
    7.
    发明申请
    Battery pack with temperature activated boost 审中-公开
    带温度启动的电池组

    公开(公告)号:US20060119322A1

    公开(公告)日:2006-06-08

    申请号:US11004295

    申请日:2004-12-04

    IPC分类号: H02J7/00

    CPC分类号: H02J7/0065 H01M10/486

    摘要: A battery pack having at least one electrochemical cell and a temperature dependent boost circuit is provided. Since the cell voltage is diminished at low temperatures, and as portable electronic devices typically have a minimum operational voltage limit, the boost circuit is actuated at low temperatures to step up the voltage from the cell to the electronic device. In one embodiment, the boost circuit is coupled serially between the cell and the output terminals of the battery pack. In parallel with the boost circuit is a boost bypass circuit. A controller senses the temperature of the battery pack from a temperature sensor, like a thermistor. When the temperature falls below a predetermined minimum temperature threshold, the controller actuates the boost circuit, thereby increasing the output voltage of the pack. Concurrently with the actuation of the boost circuit, the controller causes the boost bypass circuit to enter a high impedance state.

    摘要翻译: 提供具有至少一个电化学电池和与温度相关的升压电路的电池组。 由于在低温下电池电压降低,并且随着便携式电子设备通常具有最小工作电压限制,升压电路在低温下被致动以升高电池到电子设备的电压。 在一个实施例中,升压电路串联连接在电池组和电池组的输出端子之间。 与升压电路并联的是升压旁路电路。 控制器从温度传感器(如热敏电阻)感测电池组的温度。 当温度低于预定的最低温度阈值时,控制器启动升压电路,从而增加包的输出电压。 与升压电路的驱动同时,控制器使升压旁路电路进入高阻抗状态。