Method and system for detecting resistance of internal short circuit of battery

    公开(公告)号:US10908227B2

    公开(公告)日:2021-02-02

    申请号:US16002785

    申请日:2018-06-07

    Abstract: A method and a system for detecting resistance of an internal short circuit of a battery are provided. The method includes the following steps. Measuring charging/discharging information of the battery. Calculating a charging/discharging characteristic of the battery according to the charging/discharging information. Aligning the charging/discharging characteristic of the battery according to a comparison characteristic point of a comparison characteristic to obtain an aligned charging/discharging characteristic. Determining whether the battery is normal according to the aligned charging/discharging characteristic or a coulombic efficiency of the battery; and when the battery is determined as abnormal, calculating aligned charging/discharging information according to the aligned charging/discharging characteristic, and calculating the resistance of the internal short circuit of the battery according to the aligned charging/discharging information.

    Matrix charger apparatus and charging method
    13.
    发明授权
    Matrix charger apparatus and charging method 有权
    矩阵充电器和充电方法

    公开(公告)号:US09466991B2

    公开(公告)日:2016-10-11

    申请号:US14049236

    申请日:2013-10-09

    Abstract: A charger apparatus and a charging method are provided for charging/discharging battery modules connected in series. The chargers of the charger apparatus are grouped at least into a first charger group and a second charger group. The first terminal of the first charger of the first charger group is coupled to the positive terminal of the i-th battery module of the battery modules, and the second terminal of the first charger is coupled to a first node between the j-th battery module and the k-th battery module of the battery modules, wherein j ranges between i and k. The first terminal of the second charger of the second charger group is coupled to a second node between the i-th battery module and the j-th battery module, and the second terminal of the second charger is coupled to the negative terminal of the k-th battery module.

    Abstract translation: 提供一种用于对串联连接的电池模块进行充电/放电的充电装置和充电方法。 充电器装置的充电器至少分组成第一充电器组和第二充电器组。 第一充电器组的第一充电器的第一端子耦合到电池模块的第i电池模块的正端子,并且第一充电器的第二端子耦合到第j个电池的第一节点 模块和电池模块的第k个电池模块,其中j在i和k之间。 第二充电器组的第二充电器的第一端子耦合到第i电池模块和第j电池模块之间的第二节点,并且第二充电器的第二端子耦合到k的负极端子 电池模块。

    Power management method for electro-chemical batteries in low capacity state
    14.
    发明授权
    Power management method for electro-chemical batteries in low capacity state 有权
    低容量状态下电化学电池的电源管理方法

    公开(公告)号:US09229510B2

    公开(公告)日:2016-01-05

    申请号:US14174472

    申请日:2014-02-06

    CPC classification number: G06F1/26 G01R31/362 G01R31/3651 H01M10/42

    Abstract: A power management method for electro-chemical batteries in low capacity state is provided, including: obtaining battery information based on device hardware, to know in advance the maximum allowable current and maximum allowable power when the battery power is low; by detecting the changes in the voltage versus current, updating BCC curve; using BCC curve as power budget to control the ON/OFF of device function thread; and determining whether the minimum battery capacity and the control restriction are reached, and when the minimum battery capacity and the control restriction are reached, turn off the battery through normal shutdown process; otherwise, return to the step of obtaining battery information.

    Abstract translation: 提供了一种低容量状态的电化学电池的电源管理方法,其特征在于,包括:基于设备硬件获取电池信息,当电池电量低时,预先知道最大允许电流和最大允许功率; 通过检测电压对电流的变化,更新BCC曲线; 使用BCC曲线作为功率预算来控制设备功能线程的ON / OFF; 并且确定是否达到最小电池容量和控制限制,并且当达到最小电池容量和控制限制时,通过正常关机处理关闭电池; 否则,返回获取电池信息的步骤。

    CHARGING METHOD FOR A RECHARGEABLE BATTERY AND CHARGING ARCHITECTURE THEREWITH
    15.
    发明申请
    CHARGING METHOD FOR A RECHARGEABLE BATTERY AND CHARGING ARCHITECTURE THEREWITH 有权
    可充电电池和充电结构的充电方法

    公开(公告)号:US20140167706A1

    公开(公告)日:2014-06-19

    申请号:US13916592

    申请日:2013-06-13

    CPC classification number: H02J7/0083 H02J7/0081

    Abstract: A charging method for a rechargeable battery and a related charging architecture are provided. The provided charging method includes following steps. A characteristic curve of the rechargeable battery related to charge cycle vs. a residual capacity of a non-constant voltage charging stage under a warranty life limitation is provided. An expected residual capacity corresponding to a condition when a terminal voltage of the rechargeable battery reaches a limited charge voltage is found from the characteristic curve related to the charge cycle vs. the residual capacity of the non-constant voltage charging stage by using a current charge cycle count of the rechargeable battery. A real residual capacity corresponding to a condition when the terminal voltage of the rechargeable battery reaches the limited charge voltage approaches to the expected residual capacity by adjusting a charging current of the rechargeable battery.

    Abstract translation: 提供了可再充电电池的充电方法和相关的充电架构。 所提供的计费方法包括以下步骤。 提供了与充电周期相关的可再充电电池与保证寿命限制下的非恒压充电阶段的剩余容量的特性曲线。 从与充电周期相关的特性曲线与非恒定电压充电阶段的剩余容量相对应的可充电电池的端子电压达到有限充电电压的条件的期望的剩余容量通过使用当前充电 充电电池的周期数。 通过调节可再充电电池的充电电流,对应于可充电电池的端子电压达到有限充电电压的条件的实际剩余容量接近预期的剩余容量。

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