| INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
Prev
|
|
|
Analysis on the capacity degradation mechanism of a series lithium-ion power battery pack based on inconsistency of capacity |
| Wang Zhen-Po (王震坡)a, Liu Peng (刘鹏)a b, Wang Li-Fang (王丽芳)b |
a National Engineering Laboratory for Electric Vehicles, Beijing Institute of Technology, Beijing 100081, China;
b Key Laboratory of Power Electronics and Electric Drive, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China |
|
|
|
|
Abstract The lithium-ion battery has been widely used as an energy source. Charge rate, discharge rate, and operating temperature are very important factors for the capacity degradations of power batteries and battery packs. Firstly, in this paper we make use of an accelerated life test and a statistical analysis method to establish the capacity accelerated degradation model under three constant stress parameters according to the degradation data, which are charge rate, discharge rate, and operating temperature, and then we propose a capacity degradation model according to the current residual capacity of a Li-ion cell under dynamic stress parameters. Secondly, we analyze the charge and discharge process of a series power battery pack and interpret the correlation between the capacity degradations of the battery pack and its charge/discharge rate. According to this cycling condition, we establish a capacity degradation model of a series power battery pack under inconsistent capacity of cells, and analyze the degradation mechanism with capacity variance and operating temperature difference. The comparative analysis of test results shows that the inconsistent operating temperatures of cells in the series power battery pack are the main cause of its degradation; when the difference between inconsistent temperatures is narrowed by 5 ℃, the cycle life can be improved by more than 50%. Therefore, it effectively improves the cycle life of the series battery pack to reasonably assemble the batteries according to their capacities and to narrow the differences in operating temperature among cells.
|
Received: 28 January 2013
Revised: 17 April 2013
Accepted manuscript online:
|
|
PACS:
|
88.05.Hj
|
(Energy content issues; life cycle analysis)
|
| |
88.85.Hj
|
(Electric vehicles (EVs))
|
| |
82.47.Aa
|
(Lithium-ion batteries)
|
| |
88.80.ff
|
(Batteries)
|
|
| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61004092 and 51007088), the National High Technology Research and Development Program of China (Grant Nos. 2011AA11A251 and 2011AA11A262), the International Science & Technology Cooperation Program of China (Grant Nos. 2010DFA72760 and 2011DFA70570), and the Research Foundation of National Engineering Laboratory for Electric Vehicles, China (Grant No. 2012-NELEV-03). |
Corresponding Authors:
Wang Zhen-Po, Liu Peng
E-mail: wangzhenpo@bit.edu.cn; roc726@163.com
|
Cite this article:
Wang Zhen-Po (王震坡), Liu Peng (刘鹏), Wang Li-Fang (王丽芳) Analysis on the capacity degradation mechanism of a series lithium-ion power battery pack based on inconsistency of capacity 2013 Chin. Phys. B 22 088801
|
| [1] |
Schmidt A P, Bitzer M, Imnre A W and Guzzella L 2010 J. Power Sources 195 7634
|
| [2] |
Moss P L, Au G, Plichta E J and Zheng J P 2010 J. Electrochem. Soc. 157 A1
|
| [3] |
Sankarasubramanian S and Krishnamurthy B 2012 Electrochim. Acta 70 248
|
| [4] |
Zhao L, Pan H L, Hu Y S, Li H and Chen L Q 2012 Chin. Phys. B 21 079901
|
| [5] |
Liu X, Xie K, Zheng C M and Wang J 2011 Acta Phys. Sin. 60 118202 (in Chinese)
|
| [6] |
Sun Y, Liu L, Dong J P, Zhang B and Huang X J 2011 Chin. Phys. B 20 126101
|
| [7] |
Shi S L, Liu Y G, Zhang J Y and Wang T H 2009 Chin. Phys. B 18 4564
|
| [8] |
Xia R S, Cui Z H, Liu B Q, Guo X X and Zhao J T 2010 Chin. Phys. Lett. 27 076102
|
| [9] |
Li J, Yang C Z, Zhang X G, Zhang J and Xia B J 2009 Acta Phys. Sin. 58 6573 (in Chinese)
|
| [10] |
Wang Z P, Liu W, Wang Y, Zhao C S, Zhang S P, Chen J T, Zhou H H and Zhang X X 2012 Acta Phys. Chim. Sin. 28 2084 (in Chinese)
|
| [11] |
Vazquez-Arenas J, Fowler M, Mao X F and Chen S K 2012 J. Power Sources 215 28
|
| [12] |
Liu Y J, Li X H, Guo H J, Wang Z X, Hu Q Y, Peng W J and Yang Y 2009 J. Power Sources 189 721
|
| [13] |
Pan H L, Hu Y S, Li H and Chen L Q 2011 Chin. Phys. B 20 118202
|
| [14] |
Chen Y C, Xie K, Pan Y, Zheng C M and Wang H L 2011 Chin. Phys. B 20 028201
|
| [15] |
Ouyang C Y, Shi S Q, Wang Z X, Li H, Huang X J and Chen L Q 2005 Chin. Phys. Lett. 22 489
|
| [16] |
Smith K and Wang C Y 2006 J. Power Sources 161 628
|
| [17] |
Ni J F, Zhou H H, Chen J T and Su G Y 2004 Acta Phys. Chim. Sin. 20 582 (in Chinese)
|
| [18] |
Li Z, Lu L G, Ouyang M G and Xiao Y K 2011 J. Power Sources 196 9757
|
| [19] |
Wang Z P, Sun F C and Zhang C N 2003 Chinese Journal of Power Sources 27 438 (in Chinese)
|
| [20] |
Li H L, Zhang C N, Sun F C, Li J Q and Zhang W 2004 Transactions of Beijing Institute of Technology 24 210 (in Chinese)
|
| [21] |
Wu N N, Yang D J, Liu J H and Tian W H 2012 Electrochim. Acta 62 91
|
| [22] |
Christophersen J P, Ho C D, Henriksen G L and Howell D 2006 Advanced Technology Development Program for Lithium-Ion Batteries:gen 2 GDR Performance Evaluation Report (Washington: US Department of Energy)
|
| [23] |
Honkura K, Takahashi K and Horiba T 2011 J. Power Sources 196 10141
|
| [24] |
Ramadesigan V, Chen K J, Burns N A, Boovaragavan V, Braatz R D and Subramanian V R 2011 J. Electrochem. Soc. 158 A1048
|
| [25] |
Roscher M A, Assfalg J and Bohlen O S 2011 IEEE T. Veh. Technol. 60 98
|
| [26] |
Mao S S and Wang L L 1997 Accelerated Life Test (Beijing: Science Press) (in Chinese)
|
| [27] |
Spotnitz R 2003 J. Power Sources 72 113 (in Chinese)
|
| [28] |
Tong M, Lu L G, Ouyang M G, Shao J Y, Li Z, Wang Y, Wang B, Lin Q F and Zhao W 2010 Chin. J. Mech. Eng-EN. 46 121 (in Chinese)
|
| [29] |
Zheng H H, Li J, Song X Y, Liu G and Battaglia V S 2012 Electrochim. Acta 71 258
|
| [30] |
Omar N, Daowd M, van den Bossche P, Hegazy O, Smekens J, Coosemans T and van Mierlo J 2012 Energies 5 2952
|
| [31] |
Plett G L 2004 J. Power Sources 134 262
|
| [32] |
Chen M, Rincon-Mora G A and Mora R 2006 IEEE Trans. Energy Convers. 21 504
|
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|
