Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7886500 | Ceramics International | 2018 | 7 Pages |
Abstract
In this paper, NaTi2-xSnx(PO4)3/C (xâ¯=â¯0.0, 0.2, 0.3, and 0.4) composites were fabricated via facile sol-gel method, and employed as anodes for aqueous lithium ion batteries. Effect of Sn doping with various content on electrochemical properties of NaTi2(PO4)3/C was investigated systematically. Sn doping on Ti site has no obvious effect on the lattice structure and morphology of NaTi2(PO4)3/C. Among all samples, NaTi1.7Sn0.3(PO4)3/C (NC-Sn-3) demonstrates the best electrochemical properties. NC-Sn-3 exhibits the outstanding rate performance, delivering a discharge capacity of 103.3, 95.2, and 87.4â¯mAhâ¯gâ1 at 0.5, 7, and 20â¯Â°C, respectively, 1.7, 30.5, and 56.2â¯mAhâ¯gâ1 larger than those of pristine NaTi2(PO4)3/C. In addition, NC-Sn-3 shows excellent cycling performance with the capacity retention of 80.6% after 1000 cycles at 5â¯Â°C. This work reveals that Sn doped NaTi2(PO4)3/C with outstanding electrochemical properties are potential anode for aqueous lithium ion batteries.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Zhen Jiang, Jing Zhu, Yuehua Li, Zhangxing He, Wei Meng, Yingqiao Jiang, Lei Dai, Ling Wang,