A measurement method for determination of dc internal resistance of batteries and supercapacitors

被引：73

作者：

Zhao, Shuhong ^{[2
]}

Wu, Feng ^{[2
]}

Yang, Liuxiang ^{[1
]}

Gao, Lijun ^{[1
]}

Burke, Andrew F. ^{[3
]}

机构：

[1] NanChang Univ, Dept Chem, Nanchang 330031, Jiangxi, Peoples R China

[2] Beijing Sci & Technol Univ, Dept Mat Sci, Beijing 100081, Peoples R China

[3] Univ Calif Davis, Inst Transportat, Davis, CA 95616 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 02期

关键词：

DC resistance; Measurement method; Current interruption; Battery; Supercapacitor; DOUBLE-LAYER; PERFORMANCE; CAPACITANCE;

D O I：

10.1016/j.elecom.2009.12.004

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Internal resistance is an importance parameter determining the power performance of a battery or supercapacitor. An 8.5 Ah Li-ion battery and a 350 F supercapacitor were tested as examples to validate the measurement method of dc internal resistance. Voltage data were taken at 10 ms, 2 s and 30 s after the current interruption or pulse. The ac resistances at 1 kHz of the battery and supercapacitor were also measured for comparison with the dc values. Based on these tests, it is proposed that the dc internal resistance of the battery and supercapacitor be obtained from Delta V/Delta I where the Delta V is the voltage change after the current interruption, and Delta I means current change from 1 to 0. When the voltage change at 10 ms or less is selected, the resistance corresponds to the Ohmic resistance of the device. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：242 / 245

页数：4

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