Performance of LiFePO4 batteries in parallel based on connection topology
文献类型：期刊论文
| 作者 | Lv, Jie1,2,3,4; Lin, Shili1,2,3,4; Song, Wenji1,2,3 ; Chen, Mingbiao1,2,3,4; Feng, Ziping1,2,3; Li, Yongliang5; Ding, Yulong5
|
| 刊名 | APPLIED ENERGY
 |
| 出版日期 | 2019-10-15 |
| 卷号 | 252页码:10 |
| 关键词 | Connection topology Parallel battery module Current distribution Battery internal resistance Battery self-equalization |
| ISSN号 | 0306-2619 |
| DOI | 10.1016/j.apenergy.2019.113407 |
| 通讯作者 | Song, Wenji(songwj@ms.giec.ac.cn) |
| 英文摘要 | Connection topology directly affects the performance of a battery pack, which must satisfy the demand of all-weather environments and the complex operating conditions of electric vehicles. Currently, studies focus on battery state estimation and inconsistency reduction to obtain high energy efficiency and long lifetimes, while lacking a comprehensive analysis of the battery inconsistency generation mechanism. Here, a method based on the battery posts position and connector resistance is developed to explain how connection topology affects the performance of LiFePO4/graphite batteries in parallel by experiments and theoretical analysis. Quantitative analyses of the interactions between current distribution and battery internal resistance, battery internal resistance and connector resistance, as well as load current rate and battery self-equalization, are discussed. The results indicate that the asynchronous change of individual cell voltage causes the voltage fluctuation of the battery module. The battery module has a larger available capacity at small current rates than at large ones. However, over-charge and over-discharge of individual cells are more likely to occur. Therefore, the cut-off conditions should be adjusted according to load current rates. Research on battery connection topology can directly contribute to better performance of the battery module, and improve the efficiency, reliability and economy of electric vehicles. |
| WOS关键词 | LITHIUM-ION BATTERIES ; MANAGEMENT-SYSTEM ; POWER MANAGEMENT ; CHARGE ; EQUALIZATION ; STATE ; RESISTANCE ; ENERGY ; MODEL ; CELL |
| 资助项目 | National Key Research and Development Program of China[2016YFB0901405] ; Natural Science Foundation of Guangdong Province[2018A030310077] ; National Natural Science Foundation of China[51806223] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000497968000012 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Key Research and Development Program of China ; Natural Science Foundation of Guangdong Province ; National Natural Science Foundation of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/25987]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Song, Wenji |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 10049, Peoples R China 5.Univ Birmingham, Sch Chem Engn, Birmingham B15 2TT, W Midlands, England |
| 推荐引用方式 GB/T 7714 | Lv, Jie,Lin, Shili,Song, Wenji,et al. Performance of LiFePO4 batteries in parallel based on connection topology[J]. APPLIED ENERGY,2019,252:10. |
| APA | Lv, Jie.,Lin, Shili.,Song, Wenji.,Chen, Mingbiao.,Feng, Ziping.,...&Ding, Yulong.(2019).Performance of LiFePO4 batteries in parallel based on connection topology.APPLIED ENERGY,252,10. |
| MLA | Lv, Jie,et al."Performance of LiFePO4 batteries in parallel based on connection topology".APPLIED ENERGY 252(2019):10. |
入库方式： OAI收割
来源：广州能源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。