欢迎登录材料期刊网

材料期刊网

高级检索

NASICON型正磷酸盐LiM2(PO4)3(M=Ti,Ge,Zr,Hf)是近来研究得比较深入的锂快离子导体.LiTi2(PO4)3难于烧结得到致密的LiT2(PO4)3陶瓷,且离子电导率很低,在298K时为8.260×10-8 S/cm,613K时为8.241×10-5 S/cm,而当以三价的Al3+离子经传统的固相烧结反应部分取代LiTi2(PO4)3中四价的Ti4+离子后,通过DSC、DTG、电化学阻抗与SEM测试表明,不仅能获得致密度高稳定的产物,而且烧结后得到的锂快离子导体Li3-x(Al1-xTix)2(PO4)3(X=1.0~0.55)体系在室温下的电导率有了巨大的提高.当X=0.85时,组分Li1.3Al0.3Ti1.7(PO4)3离子电导率最大,298K时为1.792×10-6S/cm和613K时为9.210×10-4S/cm.

参考文献

[1] Alpen U V;Rabenau A;Talat G H .[J].Applied Physics Letters,1977,30:621-623.
[2] Kennedy J H;Zhang Z M .[J].Solid State Ionics,1988,28-30:726-728.
[3] 吴显明,李新海,许名飞,张云河,何则强.锂离子固体电解质的研究回顾[J].电源技术,2003(z1):255-259.
[4] Aono H;Sugimoto E;Sadaoka Y et al.[J].Journal of the Electrochemical Society,1989,136(02):590-591.
[5] Aono H;Sugimoto E;Sadaoka Y et al.[J].Journal of the Electrochemical Society,1990,137:1023-1027.
[6] Li S C;Lin Z X .[J].Solid State Ionics,1983,9-10:835-837.
[7] Fu J. .SUPERIONIC CONDUCTIVITY OF GLASS-CERAMICS IN THE SYSTEM LI2O-AL2O3-TIO2-P2O5[J].Solid state ionics,1997(3/4):195-200.
[8] Fu J. .FAST LI+ ION CONDUCTING GLASS-CERAMICS IN THE SYSTEM LI2O-AL2O3-GEO2-P2O5[J].Solid state ionics,1997(3/4):191-194.
[9] Fu J. .Fast Li+ ion conduction in Li2O (Al2O3 Ga2O3) TiO2 P2O5 glass ceramics[J].Journal of Materials Science,1998(6):1549-1553.
[10] Suzuki T.;Uematsu K.;Kodama T.;Toda K.;Ye ZG.;Ohashi M. Sato M.;Yoshida K. .Structure refinement of lithium ion conductors Li3Sc2(PO4)(3) and Li3-2x(Sc1-xMx)(2)(PO4)(3) (M = Ti, Zr) with x = 0.10 by neutron diffraction[J].Solid state ionics,1998(Special Issue SI):89-96.
[11] Suzuki T.;Uematsu K.;Kodama T.;Toda K.;Ye ZG.;Sato M.;Yoshida K. .STABILIZATION OF SUPERIONIC CONDUCTION PHASE IN LI3SC2(PO4)(3)[J].Solid state ionics,1997(1/2):27-33.
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:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%