BATTERY PACK, APPARATUS INCLUDING BATTERY PACK, AND METHOD OF MANAGING BATTERY PACK

摘要

A battery pack including a battery coupled to a load and a charging device, and comprising at least one battery cell, and a battery management unit for controlling charging of the battery from the charging device and discharging of the battery to the load, wherein the battery management unit includes a measuring unit for generating cell voltage data and current data by measuring a cell voltage and a current of the at least one battery cell, a capacity estimating unit for generating current capacity data based on the cell voltage data and the current data, an internal resistance estimating unit for generating current internal resistance data based on the cell voltage data and the current data, and a state of health (SOH) estimating unit for estimating an SOH of the at least one battery cell based on the current capacity data and the current internal resistance data.

主权项

1. A battery pack comprising:
a battery coupled to a load and a charging device, and comprising at least one battery cell; and a battery management unit configured to control charging of the battery from the charging device and discharging of the battery to the load, wherein the battery management unit comprises:
a measuring unit configured to generate cell voltage data and current data by measuring a cell voltage and a current of the at least one battery cell;a capacity estimating unit configured to generate current capacity data by estimating a current capacity of the at least one battery cell based on the cell voltage data and the current data;an internal resistance estimating unit configured to generate current internal resistance data by estimating a current internal resistance of the at least one battery cell based on the cell voltage data and the current data; anda state of health (SOH) estimating unit configured to estimate an SOH of the at least one battery cell based on the current capacity data and the current internal resistance data.