公开(公告)号：US11557798B2

公开(公告)日：2023-01-17

申请号：US16704725

申请日：2019-12-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Aravinda R. Mandli ,  Anshul Kaushik ,  Krishnan S. Hariharan ,  Ashish Khandelwal ,  Ankit Yadu ,  Jeonghoon Jo

IPC: H01M14/00 ,  H01M10/44 ,  H01M10/48 ,  H01M10/42 ,  H02J7/00 ,  G06N20/00

Abstract: A method for predicting an onset of a capacity fading in a battery includes measuring, over a period of time, a plurality of parameters related to charging and discharging cycles of the battery; detecting, based on the measured plurality of parameters, the onset of the capacity fade in the battery; and providing a notification on the electronic device indicating the detected onset of the capacity fade.

公开(公告)号：US20210063490A1

公开(公告)日：2021-03-04

申请号：US17004407

申请日：2020-08-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Arunava Naha ,  Ashish Khandelwal ,  Krishnan S. Hariharan ,  Seongho Han

IPC: G01R31/367 ,  G01R31/392 ,  G01R31/389 ,  G01R31/374 ,  G01R31/382

Abstract: Provided are a method and system for determining State of Health (SOH) of a battery. The method includes: detecting a charging state of the battery that is being charged by a Constant Current (CC) or a Constant Voltage (CV); adding a low frequency current signal to the CC that is charging the battery to obtain a low frequency charging current, or adding a low frequency voltage signal to the CV, that is charging the battery to obtain a low frequency charging voltage; determining one or more parameters relating to the battery during the charging state of the battery; calculating an internal impedance and Open Circuit Voltage (OCV) values based on the one or more parameters; and determining SOH of the battery based on the calculated internal impedance and the OCV values.

公开(公告)号：US20160187428A1

公开(公告)日：2016-06-30

申请号：US14757540

申请日：2015-12-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Suman Basu ,  Krishnan S. Hariharan ,  Taejun Yeo

IPC: G01R31/36

CPC classification number: G01R31/367 ,  G01R31/392

Abstract: A method and apparatus for estimating a state of health (SOH) of a battery are provided. The method includes measuring a voltage and a partial discharge time of the battery, acquiring a normalized partial discharge time using a battery model of a reference battery normalized with respect to a time, calculating a full discharge time of the battery based on the partial discharge time and the normalized partial discharge time, and estimating the SOH based on a ratio between a stored full discharge time of the reference battery and the full discharge time of the battery.

Abstract translation: 提供了一种用于估计电池的健康状态（SOH）的方法和装置。 该方法包括测量电池的电压和局部放电时间，使用相对于时间标准化的参考电池的电池模型来获取归一化的局部放电时间，基于部分放电时间计算电池的完全放电时间 和归一化局部放电时间，并且基于存储的基准电池的全放电时间与电池的完全放电时间之间的比率来估计SOH。

公开(公告)号：US10931128B2

公开(公告)日：2021-02-23

申请号：US15879833

申请日：2018-01-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Suman Basu ,  Krishnan S. Hariharan ,  Tae Won Song

IPC: H02J7/00 ,  H01M10/48 ,  G01R31/392 ,  G01R31/3842 ,  G01R31/367

Abstract: A method and apparatus for predicting a capacity fade rate of a battery are provided. The method includes collecting capacity degradation data of a battery based on a current and a state of charge (SOC) for a predefined number of cycles, generating a capacity fade model based on the capacity degradation data, and estimating a capacity fade rate of the battery using the capacity fade model.