摘要
以Li_2CO_3、Al_2O_3、TiO_2、NH_4H_2PO_4为原料,采用固相烧结法制备锂空气电池固体电解质Li_(1+x)Al_xTi_(2-x)(PO_4)_3(LATP),研究了不同x值、不同烧结温度对电解质性能的影响。通过X射线衍射仪(XRD)、扫描电镜(SEM)和电化学阻抗谱(EIS)对所制备电解质的结构与性能进行表征。结果表明在x值等于0.2时得到纯相的LATP,最佳烧结工艺是350℃保温2 h,600℃保温2 h,1 000℃保温8 h,室温下的电导率为4.89×10^(-5)S/cm。
The Li_（1＋x）Al_xTi_（2-x）（PO_4）_3 solid electrolyte in lithium-air batteries was prepared by solid phase sintering method. The Li_2CO_3,AI_2O_3,TiO_2,NH_4H_2PO_4 were used as raw materials. The properties of the electrolyte were studied by changing the different x and sintering temperature. The structure and properties of the electrolyte were characterized by XRD,SEM and EIS. The results show that pure LATP is prepared when x=0.2. The conductivity of LATP at the room temperature is 4.89×10^（-5）S/cm when the sintering process is sintering at 350 ℃ for 2 h,at 600 ℃ for 2 h and at 1 000 ℃ for 8 h.
出处
《粉末冶金工业》
CAS
北大核心
2017年第3期28-30,共3页
Powder Metallurgy Industry
基金
广东产学研资助项目(2014B090901003)
