以机械合金法制备了SnSb-Mo合金,并用XRD、SEM和EDS对合金的成分、组成及形貌等进行了分析;对合金材料的嵌脱锂性能研究发现,合金材料在最初的几次循环较好,但在随后的循环过程中容量迅速下降,通过SEM和EIS的分析发现影响合金材料循环性能的主要原因是合金材料与Cu基体之间的电接触.经过热处理后具有良好的嵌脱锂性能,首次嵌锂容量高达589mAh/g,经过20次循环之后仍具有451mAh/g的容量.
参考文献
[1] | Winter M;Bensenhard J O .[J].Electrochimica Acta,1999,45:31-50. |
[2] | Kepler K D;Vaughey J T;Thackeray M M .[J].Journal of Power Sources,1999,81-82:383-387. |
[3] | Vaughey J T;Kepler K D;Benedek R et al.[J].Electrochemistry Communications,1999,1(11):517-521. |
[4] | Wolfenstine J;Campos S;Foster D et al.[J].Journal of Power Sources,2002,109:230-233. |
[5] | Kim YL.;Lee HY.;Jang SW.;Lee SJ.;Baik HK.;Yoon YS.;Park YS.;Lee SM. .Nanostructured Ni3Sn2 thin film as anodes for thin film rechargeable lithium batteries[J].Solid state ionics,2003(3/4):235-240. |
[6] | H. Li;L. Shi;W. Lu .Studies on Capacity Loss and Capacity Fading of Nanosized SnSb Alloy Anode for Li-Ion Batteries[J].Journal of the Electrochemical Society,2001(8):A915-A922. |
[7] | Yang J.;Imanishi N.;Xie JY.;Yamamoto O.;Takeda Y. .Intermetallic SnSbx compounds for lithium insertion hosts[J].Solid state ionics,2000(3/4):189-194. |
[8] | Mao O;Dunlap R A;Dahn J R .[J].Solid State Ionics,1999,118:99-109. |
[9] | G. M. Ehrlich;C. Durand;X. Chen;T. A. Hugener;F. Spiess;S. L. Suib .Metallic negative electrode materials for rechargeable nonaqueous batteries[J].Journal of the Electrochemical Society,2000(3):886-891. |
[10] | Kim D G;Kim H;Sohn H J et al.[J].Journal of Power Sources,2002,104:221-225. |
[11] | Huggins RA. .Lithium alloy negative electrodes formed from convertible oxides[J].Solid state ionics,1998(Special Issue SI):57-67. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%