(湘潭大學(xué) 化學(xué)學(xué)院 環(huán)境友好化學(xué)與應(yīng)用教育部重點實驗室，湘潭 411105)
摘 要: 通過球磨CuF2和MoO3的混合物，制成CuF2/MoO3復(fù)合材料。通過X射線衍射(XRD)、掃描電鏡(SEM)和電化學(xué)測試等研究CuF2/MoO3復(fù)合材料的結(jié)構(gòu)和電化學(xué)性能。結(jié)果表明：MoO3晶粒均勻地附著在CuF2的表面，形成均勻的導(dǎo)電網(wǎng)，從而使制備的CuF2/MoO3復(fù)合材料具有高導(dǎo)電性，可作為鋰一次電池正極活性材料。以0.1C倍率放電，截止電壓為1.5 V，CuF2/MoO3復(fù)合材料放電比容量高達483mA∙h/g，放電電位平臺為2.5 V，明顯高于CuF2正極材料的278 mA∙h/g，接近其理論容量528 mA∙h/g。
關(guān)鍵字: 鋰一次電池；正極材料；CuF2/MoO3復(fù)合材料；電化學(xué)性能
（Key Laboratory of Environmentally Friendly Chemistry and Applications, Ministry of Education, School of Chemistry, Xiangtan University, Xiangtan 411105, China）
Abstract:The CuF2/MoO3 composite was prepared by milling the mixture of CuF2 and MoO3. The structural and electrochemical properties of the CuF2/MoO3 composite were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and electrochemical experiments. The results indicate that the MoO3 grains homogeneously coat on the surface of CuF2 and then form a high conductive matrix, which can be used for cathode material of lithium primary batteries. The specific discharge capacity of CuF2/MoO3 composite is as high as 483 mA∙h/g at a rate of 0.1C and the cutoff of 1.5 V, which is apparently higher than that of the lithium primary battery using pure CuF2 (278 mA∙h/g) as cathode active material and close to the theoretical specific capacity of CuF2 (528 mA∙h/g).
Key words:lithium primary , battery; cathode material; CuF2/MoO3 composite; electrochemical performance
Key words: lithium primary , battery; cathode material; CuF2/MoO3 composite; electrochemical performance
