CAJ | 학술논문

利用流变相法制得层状 LiV3 O8，用 X 射线衍射仪（XRD）、扫描电镜（SEM）对不同条件下合成的材料进行表征，通过 Land 电池测试系统测试电化学性能．结果表明：制备过程中乙二酸的加入有效改善了 LiV3 O8的形貌，提高了材料的电化学性能．用流变相法制备、400℃低温处理的 LiV3 O8性能最好，其形貌为片状，0．1 C 首次放电比容量为237．1 mAh·g-1，30次充放电循环后比容量为177．6 mAh·g-1，该制备过程方便节能，适合工业化生产．
이용류변상법제득층상 LiV3 O8，용 X 사선연사의（XRD）、소묘전경（SEM）대불동조건하합성적재료진행표정，통과 Land 전지측시계통측시전화학성능．결과표명：제비과정중을이산적가입유효개선료 LiV3 O8적형모，제고료재료적전화학성능．용류변상법제비、400℃저온처리적 LiV3 O8성능최호，기형모위편상，0．1 C 수차방전비용량위237．1 mAh·g-1，30차충방전순배후비용량위177．6 mAh·g-1，해제비과정방편절능，괄합공업화생산．
The layered LiV3O8 was prepared by rheological method.The materials in different con-ditions were characterized by X-ray diffraction(XRD)and scanning electron microscope(SEM). Their electrochemical behaviors were studied by Land battery test system.The results show that the morphology of LiV3O8 is improved effectively via adding oxalic acid in synthetic process.The LiV3O8 prepared by rheological method at 400 ℃ for 10h has higher capacity,and its morphology is flake.When discharge at 0.1 C,the initial discharge capacity is 237.1 mAh·g-1 ,and the dis-charge capacity is 177.6 mAh·g-1 after 30 cycles.The preparation process is convenient and en-ergy saving,and it is suitable for industrial production.