Coprecipitation Temperature Effects of Morphology‐Controlled Nickel Hexacyanoferrate on the Electrochemical Performance in Aqueous Sodium‐Ion Batteries

ChemSusChem ◽  
2020 ◽  
Author(s):  
Sungjun Park ◽  
Jihwan Kim ◽  
Seong‐Hoon Yi ◽  
Sang‐Eun Chun
Keyword(s):  
Electrochemical Performance ◽  
Temperature Effects ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Nickel Hexacyanoferrate ◽  
Aqueous Sodium

scholarly journals Effect of Electrolyte Anion on Electrochemical Behavior of Nickel Hexacyanoferrate Electrode in Aqueous Sodium-Ion Batteries

2020 ◽  
Vol 58 (12) ◽  
pp. 896-906
Author(s):  
Sungjun Park ◽  
Sang-Eun Chun
Keyword(s):  
Charge Transfer ◽  
Specific Capacity ◽  
Charge Transfer Resistance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Atomic Composition ◽  
Rate Performance ◽  
Transfer Resistance ◽  
Nickel Hexacyanoferrate ◽  
Aqueous Sodium

Nickel hexacyanoferrate (NiHCF) has a three-dimensional open framework structure, excellent long-cycling stability and rate performance as a cathode for aqueous sodium-ion batteries. However, the specific capacity of NiHCF is lower than that of present cathodes for aqueous batteries. A sodium-ion electrolyte was explored to achieve optimum capacity with NiHCF. Powder-type NiHCF was fabricated by coprecipitation with the atomic composition K0.065Ni1.44Fe(CN)6·4.4H2O. The presence of Fe vacancies in the atomic composition is attributable to the inclusion of coordinating and zeolitic water during coprecipitation. Two sodium-ion electrolytes, 1 M Na2SO4 and 1 M NaNO3, were employed to analyze the electrochemical behavior of the NiHCF electrode. Identical redox potentials to 0.58 V (vs. NHE) were measured in both electrolytes. However, a lower overpotential was observed in NaNO3 compared to Na2SO4 as a result of the smaller interfacial charge transfer resistance. The lower charge transfer resistance in the NaNO3 solution produced a higher specific capacity of 57 mAh g<sup>-1</sup> (1 C-rate) and the superior capacity retention of 46.6% at 20 C-rate. The anion in the aqueous electrolyte changed the charge transfer resistance at the electrode/electrolyte interface, confirming the electrolyte anion has a crucial effect on the charge capacity and rate performance of NiHCF.

Comparison of the electrochemical performance of iron hexacyanoferrate with high and low quality as cathode materials for aqueous sodium-ion batteries

2017 ◽  
Vol 53 (50) ◽  
pp. 6780-6783 ◽  
Author(s):  
Daoping Cai ◽  
Xuhui Yang ◽  
Baihua Qu ◽  
Taihong Wang
Keyword(s):  
Electrochemical Performance ◽  
Cathode Materials ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
High Quality ◽  
Aqueous Sodium ◽  
Excellent Electrochemical Performance

High quality iron hexacyanoferrate nanocubes (HQ-PB NCs) were synthesized, which exhibited excellent electrochemical performance as cathode materials for aqueous sodium-ion batteries.

Coupling hierarchical iron cobalt selenide arrays with N-doped carbon as advanced anodes for sodium ion storage

2021 ◽  
Author(s):  
Peijia Wang ◽  
Jiajie Huang ◽  
Jing Zhang ◽  
Liang Wang ◽  
Peiheng Sun ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Sodium Ion ◽  
Carbon Shell ◽  
Carbon Cloth ◽  
Sodium Ion Batteries ◽  
Half Cell ◽  
Iron Cobalt ◽  
Ion Storage ◽  
Cobalt Selenide ◽  
Sodium Ion Storage

Hierarchically core–branched iron cobalt selenide arrays coated with N-doped carbon shell were designed and synthesized on carbon cloth, showing prominent electrochemical performance both in half-cell and full cell sodium ion batteries.

Evaluation of electrochemical performance and redox activity of Fe in Ti doped layered P2-Na0.67Mn0.5Fe0.5O2 cathode for sodium ion batteries

2021 ◽  
Vol 380 ◽  
pp. 138156
Author(s):  
Devendrasinh Darbar ◽  
Nitin Muralidharan ◽  
Raphaël P. Hermann ◽  
Jagjit Nanda ◽  
Indranil Bhattacharya
Keyword(s):  
Electrochemical Performance ◽  
Sodium Ion ◽  
Redox Activity ◽  
Sodium Ion Batteries

scholarly journals Greigite Fe3S4 as a new anode material for high-performance sodium-ion batteries

2017 ◽  
Vol 8 (1) ◽  
pp. 160-164 ◽  
Author(s):  
Qidong Li ◽  
Qiulong Wei ◽  
Wenbin Zuo ◽  
Lei Huang ◽  
Wen Luo ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Anode Material ◽  
High Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Sodium Storage

A new anode material, Fe3S4, shows superior electrochemical performance and a novel mechanism for sodium storage.

Sign in / Sign up

Export Citation Format

Share Document