公开(公告)号：US10700388B2

公开(公告)日：2020-06-30

申请号：US15392248

申请日：2016-12-28

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chein-Chung Sun ,  Chi-Hua Chen ,  Chun-Hung Chou

IPC: H02J7/00 ,  H02J7/14 ,  H01M10/42 ,  H01M10/48 ,  H01M10/44

Abstract: A battery system includes a unit battery module, a current and coulomb measurement circuit and a master control circuit. The unit battery module stores electricity and calculates battery information of the battery set according to a system current value, a system coulomb value, a cell voltage and a cell temperature of the battery set. The current and coulomb measurement circuit is coupled to the unit battery module, generates the system current value according to the current flowing though the battery set, generates the system coulomb value by integrating the system current value, and provides the system current value and the system coulomb value to the unit battery module. The master control circuit is coupled to the unit battery module, receives the battery information from the unit battery module, generates a system battery information according to the battery information and provides the system battery information to an external device.

公开(公告)号：US20130166234A1

公开(公告)日：2013-06-27

申请号：US13645523

申请日：2012-10-05

Applicant: Industrial Technology Research Institute

Inventor： Chung-Jen Chou ,  Chein-Chung Sun ,  Chiu-Yu Liu ,  Ying-Hao Hsu ,  Heng-Hui Tu ,  Shou-Hung Ling

IPC: G01R31/36

CPC classification number: G01R31/3679

Abstract: A method for estimating battery degradation is provided. In this method, a remaining capacity is obtained by looking up a device characteristic table according to a steady open circuit voltage of a battery. Besides, a constant current is provided to charge the battery, and when a terminal voltage of the battery reaches to a charging preset voltage, a constant voltage is provided to charge the battery. The transition point information at the transition from a constant current mode to a constant voltage mode, which includes a transition point estimated open circuit voltage, a transition point voltage, a transition point current and a transition point battery temperature, is analyzed based on voltage, current, temperature and capacity information measured during the charging process. A battery degradation index is calculated from the transition point information.

Abstract translation: 提供了一种用于估计电池劣化的方法。 在该方法中，通过根据电池的稳定的开路电压查找器件特性表来获得剩余容量。 此外，提供恒定电流以对电池充电，并且当电池的端子电压达到充电预设电压时，提供恒定电压以对电池充电。 基于电压来分析从恒定电流模式向包括转换点估计开路电压，转变点电压，转变点电流和转换点电池温度的恒定电压模式的转变点信息， 在充电过程中测量的电流，温度和容量信息。 从转换点信息计算电池劣化指数。