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以LiTi2(PO4)3为母体,以天然高岭石为起始原料,经高温固相反应制得了一系列新的锂快离子导体Li1.2+x-yYxTi1.9-xAl0.1Si0.1WyP2.9-yO12(以下简称Y-W-Lisicon).X射线粉末衍射分析结果表明,在x=0.10,y≤0.20及x=0.20,y≤0.20的组成范围内能得到空间群为R3c,类似于Nasicon的三方结构,但在上述组成范围内均有杂相存在.应用交流阻抗技术测定电导率的结果表明,起始组成为x=0.10,y=0.10的样品在室温下具有较高的离子电导率,为1.65×10-5 S·cm-1;组成为x=0.20,y=0.10的样品在573 K时具有较高的离子电导率,为6.53×10-3 S·cm-1,该样品的分解电压为3.0 V.

参考文献

[1] Forsyth Maria;Sun Jiazeng;MacFarlane D R .Novel high salt content polymer electrolytes based on high Tg polymers[J].Electrochimica Acta,2000,45:1249.
[2] 张仁刚,赵世玺,周振平,夏君磊,刘韩星.锂离子电池电解质的最新研究进展[J].功能材料,2002(02):125-128.
[3] Yang MJ;Li WL;Wang GG;Zhang JQ .Preparation and characterization of a novel microporous PE membrane supporting composite gel polymer electrolyte[J].Solid state ionics,2005(37/38):2829-2834.
[4] Itoh Takahito;Gotoh Shinichiro;Horii Seiji et al.Polymer electrolytes based on hyperbranched polymer with crosslinkable groups at the terminals[J].Journal of Power Sources,2005,146(1-2):371.
[5] Hayashi Akitoshi;Iio Keiichi;Morimoto Hideyuki et al.Mechanochemical synthesis of amorphous solid electrolytes using SiS2 and various lithium compounds[J].Solid State Ionics,2004,175:637.
[6] Machida Nobuya;Yamamoto Hidekazu;Asano Seiji et al.Preparation of amorphous 75L2S·xP2S3·(25-x)P2S5(mol%) solid electrolytes by a high-energy ball-milling process and their application for an all-solid-state lithium battery[J].Solid State Ionics,2005,176:473.
[7] Stramare S.;Thangadurai V.;Weppner W. .Lithium lanthanum titanates: A review [Review][J].Chemistry of Materials,2003(21):3974-3990.
[8] He L X;Yoo H I .Effects of B-site ion(M) substitution on the ionic conductivity of(Li3xLa2/3-x)1+y/2(MyTi1-y)O3(M=Al,Cr)[J].Electrochimica Acta,2003,48:1357.
[9] Vijayakumar Murugesan;Inaguma Yoshiyuki;Mashiko Wataru et al.Synthesis of fine powders of Li3xLa2/3-xTiO3 perovskite by a polymerizable precursor method[J].CHEMISTRY OF MATERIALS,2004,16:2719.
[10] Best AS.;MacFarlane DR.;Forsyth M. .Stoichiometric changes in lithium conducting materials based on Li1+xAlxTi2-x(PO4)(3): impedance, X-ray and NMR studies[J].Solid state ionics,2000(Special Issue SI):339-344.
[11] 郑子山,张中太,唐子龙,沈万慈.锂无机固体电解质[J].化学进展,2003(02):101-106.
[12] 陈汝芬,宋秀芹,贾密英.溶胶-凝胶法合成超细Li2+xRExSi1-xO3及其离子导电性[J].中国稀土学报,2000(02):176-178.
[13] 陈汝芬,宋秀芹.Li4SiO4-Y2O3的溶胶-凝胶法合成及离子导电性研究[J].稀土,2002(01):14-16.
[14] 张玉荣,王文继.锂快离子导体Li{1+2x+yAlxYbyTi2-x-ySixP3-xO12系统的研究[J].无机材料学报,2001(01):117-121.
[15] 张玉荣,王文继.锂快离子导体Li1+2xAlxTiyGe2-x-ySixP3-xO12系统的研究[J].功能材料,2002(02):178-179,182.
[16] 李荣华,许泽润,王文继.矿物锂快离子导体Li1+2xAlxSCyNbyTi2-x-2ySixP3-xO12系统的合成与表征[J].功能材料,2003(01):59-60,63.
[17] 陈宇,张玉荣.Y3+, S6+掺杂的矿物锂快离子导体Li1.2+x-yYxTi1.9-xAl0.1Si0.1SyP2.9-yO12系统的合成与表征[J].中国稀土学报,2005(02):179-182.
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