scholarly journals Advanced anode materials for sodium ion batteries: carbodiimides

MRS Advances ◽  
2017 ◽  
Vol 2 (21-22) ◽  
pp. 1165-1176 ◽  
Author(s):  
Aitor Eguia-Barrio ◽  
Elizabeth Castillo-Martinez ◽  
Xiaohui Liu ◽  
Richard Dronskowski ◽  
Luis Lezama ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Low Voltage ◽  
Reversible Capacity ◽  
Sodium Ion ◽  
Enthalpies Of Formation ◽  
Sodium Ion Batteries ◽  
Sem Images ◽  
Conversion Reaction ◽  
Micrometer Particle ◽  
Voltage Plateau

ABSTRACTTMNCN (where TM = Mn2+, Fe2+, Co2+ or Ni2+) have been recently proposed as electrochemically active materials for Na-ion insertion that operate via conversion reaction. Their electrochemical performance for Na-ion batteries is presented here with an emphasis on long-term cycling. With a very low voltage for Na insertion of ∼0.1V vs Na+/Na for MnNCN, the overpotential observed in batteries of MnNCN plays a very important role in their performance, evidencing big differences in the electrochemical performance between materials produced with different nano- and micrometer particle sizes evidenced by SEM images. A more suitable voltage for the conversion reaction accompanied by less overpotential is shown by FeNCN, CoNCN and NiNCN. Despite the lower reversible capacity achieved by FeNCN (450 mAh/g) in comparison with CoNCN and NiNCN in the first cycle; the smallest first-cycle irreversible capacity (220 mAh/g) and the lower voltage plateau (0.3 V vs Na+/Na) make FeNCN a good candidate as an anode material for sodium ion batteries. The voltages of conversion reaction are correlated with the calculated enthalpies of formation suggesting that thermodynamics dominates the observed electrochemical conversion reaction.

Improved electrochemical performance of tin-sulfide anodes for sodium-ion batteries

2015 ◽  
Vol 3 (33) ◽  
pp. 16971-16977 ◽  
Author(s):  
Ying Ching Lu ◽  
Chuze Ma ◽  
Judith Alvarado ◽  
Nikolay Dimov ◽  
Ying Shirley Meng ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Tin Sulfide

Due to their highly reversible capacity, tin-sulfide-based materials have gained attention as potential anodes for sodium-ion and lithium-ion batteries.

scholarly journals Binder and Conductive Diluents Free NaVPO4F Based Free-standing Positive Electrodes for Sodium-Ion Batteries

2022 ◽  
Author(s):  
V Kiran Kumar ◽  
Sourav Ghosh ◽  
Naresh Vangapally ◽  
Govind Ummethala ◽  
Sai Rama Krishna Malladi ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Electrochemical Performance ◽  
Carbon Matrix ◽  
Aluminum Foil ◽  
Reversible Capacity ◽  
Sodium Ion ◽  
Electrochemical Performances ◽  
Petroleum Pitch ◽  
Sodium Ion Batteries ◽  
Free Standing

Abstract Herein, we report a carbon-fiber based freestanding electrode for NaVPO4F cathodes in sodium-ion batteries. The replacement of conventional aluminum foil with a carbon fiber mat-based current collector results in significant improvement in capacity at high rates and charge-discharge cycle stability. Petroleum-pitch (P-Pitch) has dual functions. P-pitch is used as a binder to bind NaVPO4F particles onto the carbon fiber mat, which helps to eliminate typical organic binders. At the same time, P-Pitch acts as a conducting precursor to coat onto NaVPO4F particles. The amount of P-pitch required to achieve stable electrochemical performance is optimized. As a result, 15 and 20 % of P-pitch in the composite NaVPO4F electrodes (15P_NVPF@CF and 20P_NVPF@CF) shows stable electrochemical performances. A reversible capacity of 120 and 119 mAh g−1 are observed for 15P_NVPF@CF and 20P_NVPF@CF, with 97 and 98 % retention in capacity after 300 cycles, respectively. Further, at a 0.5 C current rate, 15P_NVPF@CF and 20P_NVPF@CF electrodes show 86 and 87 % capacity retention after 1000 cycles. The significant electrochemical performance of these freestanding electrodes is ascribed to the interlinked carbon matrix with NaVPO4F particles and carbon-fiber mat, which provides a continuous path for electronic conduction and faster kinetics of NaVPO4F particles

scholarly journals LAYERED O3-NaFe0.5Co0.5O2 AS HIGH CAPACITY AND LOW- COST MATERIAL FOR SODIUM ION BATTERIES

2019 ◽  
Vol 57 (2) ◽  
pp. 198 ◽  
Author(s):  
Nguyen Van Hoang ◽  
Huynh Le Thanh Nguyen ◽  
Tran Van Man ◽  
Le My Loan Phung ◽  
Nguyen Dinh Quan
Keyword(s):  
Low Cost ◽  
High Capacity ◽  
Reversible Capacity ◽  
Argon Atmosphere ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Capacity Retention ◽  
Voltage Plateau ◽  
Excellent Cycling Stability ◽  
Discharge Curves

O3-NaFe0.5Co0.5O2 layered cathode material was synthesized by solid state reaction at 900 oC followed by a quenching step in argon atmosphere. The chemical composition and morphology of synthesized material were analyzed by Atomic Absorption Spectroscopy (AAS) and Scanning Electron Microscopy (SEM). The electrochemical properties were evaluated by Cyclic Voltammetry (CV) and charge-discharge cycling. The material NaFe0.5Co0.5O2 shows the sloped discharge curves with high flat voltage plateau and excellent cycling stability. The reversible capacity of about 120 mAh/g at rate C/10 and good capacity retention after 100 cycles were obtained.

Extended low-voltage plateau capacity of hard carbon spheres anode for sodium ion batteries

2020 ◽  
Vol 476 ◽  
pp. 228550
Author(s):  
Xiang Zhang ◽  
Xiaoli Dong ◽  
Xuan Qiu ◽  
Yongjie Cao ◽  
Congxiao Wang ◽  
...  
Keyword(s):  
Low Voltage ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Carbon Spheres ◽  
Hard Carbon ◽  
Voltage Plateau

Quasi-reversible conversion reaction of CoSe2/nitrogen-doped carbon nanofibers towards long-lifetime anode materials for sodium-ion batteries

2018 ◽  
Vol 6 (16) ◽  
pp. 7088-7098 ◽  
Author(s):  
Chao Cui ◽  
Zengxi Wei ◽  
Gang Zhou ◽  
Weifeng Wei ◽  
Jianmin Ma ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Carbon Nanofibers ◽  
Anode Materials ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Conversion Reaction ◽  
Nitrogen Doped ◽  
Excellent Electrochemical Performance ◽  
Long Lifetime ◽  
Nitrogen Doped Carbon

CoSe2 nanodots offer adequate heterointerfaces between CoSe2 and N-CNFs to ensure quasi-reversible conversion of the CoSe2/N-CNF electrode and excellent electrochemical performance.

scholarly journals Self-supported binder-free hard carbon electrodes for sodium-ion batteries: insights into their sodium storage mechanisms

2020 ◽  
Vol 8 (11) ◽  
pp. 5558-5571 ◽  
Author(s):  
Adrian Beda ◽  
Claire Villevieille ◽  
Pierre-Louis Taberna ◽  
Patrice Simon ◽  
Camélia Matei Ghimbeu
Keyword(s):  
Phenolic Resin ◽  
Low Voltage ◽  
Sodium Ion ◽  
Carbon Electrodes ◽  
Sodium Ion Batteries ◽  
Hard Carbon ◽  
Binder Free ◽  
Voltage Plateau ◽  
Filter Papers ◽  
Sodium Storage

Binder-free self-supported hard carbon electrodes derived from biopolymer filter papers impregnated with phenolic resin were designed to study Na storage mechanisms. Experimental evidence of Na intercalation in the low voltage plateau was found.

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.

A P2/P3 composite-layered cathode material with low-voltage decay for sodium-ion batteries

2021 ◽  
Author(s):  
Xiaoli Chen ◽  
Jiangping Song ◽  
Junsheng Li ◽  
Haining Zhang ◽  
Haolin Tang
Keyword(s):  
Cathode Material ◽  
Low Voltage ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Voltage Decay

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
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