Thermo-electrochemical study on cathode materials for lithium ion cells

详细信息    查看全文

• 作者：Liubin Song ; Zhongliang Xiao ; Lingjun Li…
• 关键词：Thermo ; electrochemistry ; Electrochemical ; calorimetry ; Assessment ; Safety of lithium ion cell ; LiFePO4 ; LiMn2O4
• 刊名：Journal of Solid State Electrochemistry
• 出版年：2015
• 出版时间：July 2015
• 年：2015
• 卷：19
• 期：7
• 页码：2167-2175
• 全文大小：1,575 KB
• 参考文献：1.Braun PV, Cho J, King WP, Zhang HG (2012) High power rechargeable cells. Curr Opinion Solid State Mater Sci 16:186-98View Article
  2.Scrosati B, Garche J (2010) Lithium cells: status, prospects and future. J Power Sources 195:2419-430View Article
  3.Arai J, Yamaki T, Yamauchi S, Yuasa T, Maeshima T, Sakai T, Koseki M, Horiba T (2005) Development of a high power lithium secondary cell for hybrid electric vehicles. J Power Sources 146:788-92View Article
  4.Lu LG, Han XB, Li JQ, Hua JF, Ouyang MG (2013) A review on the key issues for lithium ion cell management in electric vehicles. J Power Sources 226:272-88View Article
  5.Wang QS, Ping P, Zhao XJ, Chu GQ, Sun JH, Chen CH (2012) Thermal runaway caused fire and explosion of lithium ion cell. J Power Sources 208:210-24View Article
  6.Lisbona D, Snee T (2011) A review of hazards associated with primary lithium and lithium ion cells. Process Saf Environ Prot 89:434-42View Article
  7.Balakrishnan PG, Ramesh R, Kumar TP (2006) Safety mechanisms in lithium ion cells. J Power Sources 155:401-14View Article
  8.Krause LJ, Jensen LD, Dahn JR (2012) Measurement of parasitic reactions in Li ion cells by electrochemical calorimetry. J Electrochem Soc 159:937-43View Article
  9.Zhang XW (2011) Thermal analysis of a cylindrical lithium ion cell. Electrochim Acta 56:1246-255View Article
  10.Viswanathan VV, Choi DW, Wang DH, Xu W, Towne S, Williford RE, Zhang JG, Liu J, Yang ZG (2010) Effect of entropy change of lithium intercalation in cathodes and anodes on Li-ion cell thermal management. J Power Sources 195:3720-729View Article
  11.Jin HF, Liu Z, Teng YM, Gao JK, Zhao Y (2009) A comparison study of capacity degradation mechanism of LiFePO4-based lithium ion cells. J Power Sources 189:445-48View Article
  12.Saito Y (2005) Thermal behaviors of lithium ion cells during high-rate pulse cycling. J Power Sources 146:770-74View Article
  13.Kobayashi Y, Miyashiro H, Kumai K, Takei K, Iwahori T, Uchida I (2002) Precise electrochemical calorimetry of LiCoO2/graphite lithium ion cell. J Electrochem Soc 149:978-82View Article
  14.Hallaj SA, Prakash J, Selman JR (2000) Characterization of commercial Li-ion cells using electrochemical–calorimetric measurements. J Power Sources 87:186-94View Article
  15.Song LB, Xiao ZL, Zhou Y (2013) Thermo-electrochemical study on LiMn2O4 lithium ion cells during charge-discharge process. Electrochim Acta 114:611-16View Article
  16.Andersson AS, Thomas JO (2001) The source of first-cycle capacity loss in LiFePO4. J Power Sources 97-8:498-02View Article
  17.Tang ZY, Han B, Wang JY, Gao F (2005) Development of LiFePO4 as new type cathode material in Li-ion cells. Chin J Power Sources 29:556-59
  
• 作者单位：Liubin Song (1)
  Zhongliang Xiao (1)
  Lingjun Li (2)
  Qingqing Zhou (1)
  
  1. Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, 410004, Hunan, China
  2. School of Physics and Electronic Science, Changsha University of Science and Technology, Changsha, 410004, Hunan, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Analytical Chemistry
  Industrial Chemistry and Chemical Engineering
  Characterization and Evaluation Materials
  Condensed Matter
  Electronic and Computer Engineering
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1433-0768

文摘

In order to resolve the safety problem arising from the thermal effect impact for lithium ion cell, different cathode materials of lithium ion cell were studied by using electrochemical-calorimetric technique. The electrochemical and thermodynamic information of lithium ion cells during charge-discharge process was obtained, and a series of thermodynamic parameters of lithium ion cells, such as enthalpy changes, entropy changes, and Gibbs free energy change, were calculated. The results showed that charge-discharge rate was one of the important indicators for the performance of lithium ion cell. Under the given temperature (313.15?K), as the charge-discharge rate increased, the electrode potential of different cathode materials for lithium ion cell experienced a negative shift, the discharge specific capacity decreased, and the cycling efficiency decreased as well. The smaller the rate, the lower the total heat produced and the smaller the enthalpy change would be. Therefore, the safety performance of the cell was higher. Under a low discharge rate (0.1, 0.2?C), the entropy change of LiFePO4 was larger than that of LiMn2O4, and a higher entropy change indicated higher chaos and lower reversibility. As a result, LiFePO4 had a poor cycling performance, which corresponded with the results of electrochemical performance analysis. The test results of electrochemistry and thermo-electrochemistry were combined to establish an assessment method on different cathode materials of lithium ion cell. These results provided the theoretical and technical support for the optimization of cell structure and thermal management system.