Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Chongqing University of Technology(Natural Science)》 2017-08
Add to Favorite Get Latest Update

Experimental Analysis of Internal Resistance of Energy-Type LiFePO_4 Power Batteries and Its Influencing Factors

WANG Fang;SUN Zhipeng;LIN Chunjing;BU Xiangjun;LIU Shiqiang;China Automotive Technology and Research Center;  
Taking the 1. 5 A·h cylindrical LiFePO_4 battery cell as the research object,this paper investigated the characteristics of ohmic and polarization internal resistances at room temperature using the HPPC method. Meanwhile,influences of the pulse current magnitude and time on experimental results are evaluated. Experimental results show that ohmic resistance is much larger than polarization resistance and polarization resistance is more sensitive to SOC than ohmic resistance. With the rise of pulse current time,polarization resistance also increases. And the increasing range decreases with the pulse current time rising. Charging/discharging status has a much lower influence on ohmic resistancethan polarization resistance. In addition,polarization resistance increases in a linear relationship with the current rate,while the current rate has relatively little influence on ohmic resistance.
【Fund】: 基金项目 “系统性分层分级的产品测试验证和应用研究”(2016YFB0100407)
【CateGory Index】: TM912
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved