Bimetal-organic-framework derived CoTiO3 mesoporous micro-prisms anode for superior stable power sodium ion batteries

Durability, rate capability, capacity and tap density are paramount performance metrics for promising anode materials, especially for sodium ion batteries. Herein, a carbon free mesoporous CoTiO 3 micro-prism with a high tap density (1.8 g cm −3 ) is newly developed by using a novel Co-Ti-bimetal or...

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Bibliographic Details
Published in:Science China materials 2018-08, Vol.61 (8), p.1057-1066
Main Authors: Huang, Zhen-Dong, Zhang, Ting-Ting, Lu, Hao, Yang, Jike, Bai, Ling, Chen, Yuehua, Yang, Xu-Sheng, Liu, Rui-Qing, Lin, Xiu-Jing, Li, Yi, Li, Pan, Liu, Xianming, Feng, Xiao-Miao, Ma, Yan-Wen
Format: Article
Language:English
Subjects:
Anodes
Batteries
Bimetals
Carbon
Chemistry and Materials Science
Chemistry/Food Science
Cycle ratio
Electrode materials
Materials Science
Performance measurement
Prisms
Sodium-ion batteries
Tap density
Titanium
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Summary:Durability, rate capability, capacity and tap density are paramount performance metrics for promising anode materials, especially for sodium ion batteries. Herein, a carbon free mesoporous CoTiO 3 micro-prism with a high tap density (1.8 g cm −3 ) is newly developed by using a novel Co-Ti-bimetal organic framework (BMOF) as precursor. It is also interesting to find that the Co-Ti-BMOF derived carbon-free mesoporous CoTiO 3 micro-prisms deliver a superior stable and more powerful Na + storage than other similar reported titania, titanate and their carbon composites. Its achieved capacity retention ratio for 2,000 cycles is up to 90.1% at 5 A g −1 .
ISSN:2095-8226
2199-4501
DOI:10.1007/s40843-017-9225-5