Aggregation-Morphology-Dependent Electrochemical Performance of Co<sub>3</sub>O<sub>4</sub> Anode Materials for Lithium-Ion Batteries
Linglong Kong,
Lu Wang,
Deye Sun,
Su Meng,
Dandan Xu,
Zaixin He,
Xiaoying Dong,
Yongfeng Li,
Yongcheng Jin
Affiliations
Linglong Kong
State Forestry and Grassland Administration Key Laboratory of Silviculture in downstream areas of the Yellow River, Shandong Agricultural University, No. 61 Daizong Road, Taian 271018, China
Lu Wang
School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
Deye Sun
Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No.189 Songling Road, Qingdao 266101, China
Su Meng
Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No.189 Songling Road, Qingdao 266101, China
Dandan Xu
State Forestry and Grassland Administration Key Laboratory of Silviculture in downstream areas of the Yellow River, Shandong Agricultural University, No. 61 Daizong Road, Taian 271018, China
Zaixin He
State Forestry and Grassland Administration Key Laboratory of Silviculture in downstream areas of the Yellow River, Shandong Agricultural University, No. 61 Daizong Road, Taian 271018, China
Xiaoying Dong
State Forestry and Grassland Administration Key Laboratory of Silviculture in downstream areas of the Yellow River, Shandong Agricultural University, No. 61 Daizong Road, Taian 271018, China
Yongfeng Li
State Forestry and Grassland Administration Key Laboratory of Silviculture in downstream areas of the Yellow River, Shandong Agricultural University, No. 61 Daizong Road, Taian 271018, China
Yongcheng Jin
Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No.189 Songling Road, Qingdao 266101, China
The aggregation morphology of anode materials plays a vital role in achieving high performance lithium-ion batteries. Herein, Co3O4 anode materials with different aggregation morphologies were successfully prepared by modulating the morphology of precursors with different cobalt sources by the mild coprecipitation method. The fabricated Co3O4 can be flower-like, spherical, irregular, and urchin-like. Detailed investigation on the electrochemical performance demonstrated that flower-like Co3O4 consisting of nanorods exhibited superior performance. The reversible capacity maintained 910.7 mAh·g−1 at 500 mA·g−1 and 717 mAh·g−1 at 1000 mA·g−1 after 500 cycles. The cyclic stability was greatly enhanced, with a capacity retention rate of 92.7% at 500 mA·g−1 and 78.27% at 1000 mA·g−1 after 500 cycles. Electrochemical performance in long-term storage and high temperature conditions was still excellent. The unique aggregation morphology of flower-like Co3O4 yielded a reduction of charge-transfer resistance and stabilization of electrode structure compared with other aggregation morphologies.
