Structure Distortion Induced Monoclinic Nickel Hexacyanoferrate as High-Performance Cathode for Na-Ion Batteries

Xu, Yue1; Wan, Jing2,3; Huang, Li2; Ou, Mingyang1; Fan, Chenyang1; Wei, Peng1; Peng, Jian1; Liu, Yi1; Qiu, Yuegang1; Sun, Xueping1; Fang, Chun1; Li, Qing1; Han, Jiantao1; Huang, Yunhui1; Alonso, Jose Antonio4; Zhao, Yusheng2

2019-01-24

10.1002/aenm.201803158

Advanced Energy Materials   影响因子和分区

1614-6832

1614-6840

Prussian blue analogs with an open framework are ideal cathodes for Na-ion batteries. A superior high-rate and highly stable monoclinic nickel hexacyanoferrate (NiHCF-3) is synthesized via a facile one-step crystallization-controlled co-precipitation method. It gives a high specific capacity of 85.7 mAh g(-1), nearly to its theoretical value. It also exhibits an excellent rate capability with a high capacity retention ratio of 78% at 50 C and a stable cycling performance over 1200 cycles. Through the ex situ X-ray diffraction and pair distribution function measurements, it is found that the monoclinic structure with distorted framework is greatly related to the high Na content. The electronic structure studies by density functional theory (DFT) calculation demonstrate that NiHCF-3 deformation promotes the framework conductivity and improves the electrochemical activity of Fe, which results in an ultrahigh-rate performance of monoclinic phase. Furthermore, the high-quality monoclinic (NiHCF-3) exhibits excellent compatibility with both hard carbon and NaTi2(PO4)(3) anodes in full cells, which shows great prospects for the application in the large-scale energy storage systems.

crystallization-controlled synthesis high-rate capability Prussian blue analogs structure distortion

SCI ; EI

英语

其他

National Natural Science Foundation of China[51772117] ; National Natural Science Foundation of China[51732005] ; National Natural Science Foundation of China[51702111] ; National Natural Science Foundation of China[51632001]

Chemistry ; Energy & Fuels ; Materials Science ; Physics

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000456712500005

WILEY-V C H VERLAG GMBH

20185006222082

Cathodes ; Density functional theory ; Distribution functions ; Electronic structure ; Precipitation (chemical) ; Sodium compounds ; Titanium compounds

Chemical Operations:802.3 ; Probability Theory:922.1

Web of Science

1.Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China
2.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
3.Chongqing Univ, Dept Appl Phys, Chongqing 401331, Peoples R China
4.Inst Ciencia Mat Madrid, Dept Energy & Environm, E-28049 Madrid, Spain

Xu, Yue,Wan, Jing,Huang, Li,et al. Structure Distortion Induced Monoclinic Nickel Hexacyanoferrate as High-Performance Cathode for Na-Ion Batteries[J]. Advanced Energy Materials,2019,9(4).

Xu, Yue.,Wan, Jing.,Huang, Li.,Ou, Mingyang.,Fan, Chenyang.,...&Zhao, Yusheng.(2019).Structure Distortion Induced Monoclinic Nickel Hexacyanoferrate as High-Performance Cathode for Na-Ion Batteries.Advanced Energy Materials,9(4).

Xu, Yue,et al."Structure Distortion Induced Monoclinic Nickel Hexacyanoferrate as High-Performance Cathode for Na-Ion Batteries".Advanced Energy Materials 9.4(2019).