The effect of K-Ion on the electrochemical performance of spinel LiMn2O4
详细信息 查看全文
- 作者：Lilong Xiong ; Youlong Xu ; Xiang Xiao ; Jie Wang ; Yutao Li
- 关键词：solid state reaction ; spinel LiMn2O4 ; ion conductivity ; rate capability
- 刊名：Electronic Materials Letters
- 出版年：2015
- 出版时间：January 2015
- 年：2015
- 卷：11
- 期：1
- 页码：138-142
- 全文大小：582 KB
- 参考文献：1. A. S. Arico, P. Bruce, B. Scrosati, J. M. Tarascon, and W. Van Schalkwijk, / Nat. Mater. 4, 366 (2005). CrossRef
2. M. Armand and J. M. Tarascon, / Nature 451, 652 (2008). CrossRef
3. J. B. Goodenough and Y. Kim, / Chem. Mat. 22, 587 (2010). CrossRef
4. P. G. Bruce, B. Scrosati, and J. M. Tarascon, / Angew. Chem.-Int. Edit. 47, 2930 (2008). CrossRef
5. Y. S. Jung, A. S. Cavanagh, A. C. Dillon, M. D. Groner, S. M. George, and S. H. Lee, / J. Electrochem. Soc. 157, A75 (2010). CrossRef
6. W. Chang, J. W. Choi, J. C. Im, and J. K. Lee, / J. Power Sources 195, 320 (2010). CrossRef
7. Y. L. Ding, J. A. Xie, G. S. Cao, T. J. Zhu, H. M. Yu, and X. B. Zhao, / Adv. Funct. Mater. 21, 348 (2011). CrossRef
8. R. Thirunakaran, A. Sivashanmugam, S. Gopukumar, and R. Rajalakshmi, / J. Power Sources 187, 565 (2009). CrossRef
9. E. Hosono, T. Kudo, I. Honma, H. Matsuda, and H. S. Zhou, / Nano Lett. 9, 1045 (2009). CrossRef
10. C. Julien, S. Ziolkiewicz, M. Lemal, and M. Massot, / J. Mater. Chem. 11, 1837 (2001). CrossRef
11. S. Nieto, S. B. Majumder, and R. S. Katiyar, / J. Power Sources 136, 88 (2004). CrossRef
12. K. Y. Chung and K. B. Kim, / Electrochim. Acta 49, 3327 (2004). CrossRef
13. T. Kakuda, K. Uematsu, K. Toda, and M. Sato, / J. Power Sources 167, 499 (2007). CrossRef
14. W. H. Ryu, J. Y. Eom, R. Z. Yin, D. W. Han, W. K. Kim, and H. S. Kwon, / J. Mater. Chem. 21, 15337 (2011). CrossRef
15. B. Ebin, S. Gurmen, C. Arslan, and G. Lindbergh, / Electrochim. Acta 76, 368 (2012). CrossRef
16. J. M. Amarilla, K. Petrov, F. Pico, G. Avdeev, J. M. Rojo, and R. M. Rojas, / J. Power Sources 191, 591 (2009). CrossRef
17. S. Rajakumar, R. Thirunakaran, A. Sivashanmugam, J. Yamaki, and S. Gopukumar, / J. Appl. Electrochem. 41, 129 (2011). CrossRef
18. L. Q. Zhang, T. Yabu, and I. Taniguchi, / Mater. Res. Bull. 44, 707 (2009). CrossRef
19. K. R. Stroukoff and A. Manthiram, / J. Mater. Chem. 21, 10165 (2011).
文摘
Spinel LiMn2O4 is regarded as one of the cathode active materials for rechargeable lithium-ion batteries with the most potential. K+-ion modified LiMn2O4 samples are synthesized by solid-state reaction. The SEM analysis shows that the modified samples exhibit uniform particle size distribution and much better crystallinity. The modified sample K1 exhibits ionic diffusion coefficient of 1.43 × 10-10 cm-2 s-1 and 2.04 × 10-10 cm-2 s-1, which is much higher than that of the un-modified spinel LiMn2O4 sample. The electrochemical measurements show that K+-ion modification could effectively reduce the charge transfer resistance, improve the capacity retention and rate capacity of the spinel materials.