Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7991404 | Journal of Alloys and Compounds | 2018 | 20 Pages |
Abstract
KTiOPO4 (KTP) microblocks, which were prepared using a simple solid state method, have been used as novel anode materials for sodium ion batteries (SIBs). The as-prepared KTP microblocks with size distribution of 300-500â¯nm delivered high performance of electrochemical storage of sodium, such as an initial charge capacity of 108.7â¯mAh gâ1 at 200â¯mAâ¯gâ1 with almost no capacity loss in 1000 cycles, and good rate capability of 80.3â¯mAh gâ1 even at the current density of 1000â¯mAâ¯gâ1. Ex situ XPS and in situ XRD showed an irreversible phase reaction mechanism during the insertion/extraction of Na+. Dendrite formation at lower potential could be suppressed at the average potential of 1.3â¯V. This work indicated that KTP microblocks are low-cost and safe anode materials for SIBs.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Shuang Liu, Lianyi Shao, Xuejing Zhang, Meng Zhou, Zhanliang Tao, Jun Chen,