Preparation of V2O5 Porous Hollow Spheres and Study on Excellent Cycling Stability of Lithium Battery

查看全文 作　　者：Shimeng [1]Zhang;Hongye [1]Guan;Dapeng [1]Li;Gengxin [1]Zhang;Ruijia [1]Yang;Liang [1]Zhao;Haibin [1]Sun;Zhicheng [1]Lu;Jiacai [1]Wen;Yujuan [1]Dong 机构地区：[1]College of New Energy, Bohai University, Jinzhou, Liaoning, 121007, China 出　　处：《Modern Electronic Technology》索引2018年第2卷第3期,共3页 摘　　要：Through one-step simple polyol-assisted (ethylene glycol) process, V2O5 hollow mi-cro-spheres about 3 micrometres in size were successfully synthesized. The structure is neat, the outer wall were porous. Testing its electrochemical properties with V2O5 hollow materials as cathode materia of lithium ion battery, the results showed that under the ratio of 1 C, the initial charge and discharge specific capacity were 236.8 mAh g^-1, 213 mAh g^-1, even if after 100 cycles, the charge and discharge specific capacity were still 220 mAh g^-1 and 219.7 mAh g^-1 respectively. Relative to the charge and discharge capacity of the second cycle, the keep rate were 93.2%, 92.9% respectively, has good cycle stability. 关 键 词：V205 POROUS HOLLOW SPHERES Lithium battery CYCLING stability