Sodium diffusion in ionic liquid-based electrolytes for Na-ion batteries: the effect of polarizable force fields

2020 ◽  
Vol 22 (35) ◽  
pp. 20114-20122
Author(s):  
Arianna Massaro ◽  
Jocasta Avila ◽  
Kateryna Goloviznina ◽  
Ivan Rivalta ◽  
Claudio Gerbaldi ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Force Fields ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Sodium Ions ◽  
Polarizable Force Fields ◽  
Sodium Diffusion

Understanding the transport of sodium ions in ionic liquids is the key to design novel electrolyte materials for sodium-ion batteries.

scholarly journals The use of protic ionic liquids with cathodes for sodium-ion batteries

2016 ◽  
Vol 4 (27) ◽  
pp. 10472-10478 ◽  
Author(s):  
T. Vogl ◽  
C. Vaalma ◽  
D. Buchholz ◽  
M. Secchiaroli ◽  
R. Marassi ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Protic Ionic Liquids ◽  
Protic Ionic Liquid

Protic ionic liquid-based electrolytes are promising electrolytes for sodium-ion batteries.

Capacity losses due to solid electrolyte interphase formation and sodium diffusion in sodium-ion batteries

2021 ◽  
Author(s):  
Le Anh Ma ◽  
Alexander Buckel ◽  
Leif Nyholm ◽  
Reza Younesi
Keyword(s):  
Carbon Black ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Open Circuit ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Electrochemical Testing ◽  
Capacity Loss ◽  
Sei Layer ◽  
Sodium Diffusion

Abstract Knowledge about capacity losses due to the formation and dissolution of the solid electrolyte interphase (SEI) layer in sodium-ion batteries (SIBs) is still limited. One major challenge in SIBs is the fact that the SEI generally contains more soluble species than the corresponding SEI layers formed in Li-ion batteries. By cycling carbon black electrodes against Na-metal electrodes, to mimic the SEI formation on negative SIB electrodes, this study studies the associated capacity losses in different carbonate electrolyte systems. Using electrochemical testing and synchrotron-based X-ray photoelectron (XPS) experiments, the capacity losses due to changes in the SEI layer and diffusion of sodium in the carbon black electrodes during open circuit pauses of 50 h, 30 h, 15 h and 5 h are investigated in nine different electrolyte systems. The different contributions to the open circuit capacity loss were determined using a new approach involving different galvanostatic cycling protocols. It is shown that the capacity loss depends on the interplay between the electrolyte chemistry and the thickness and stability of the SEI layer. The results show, that the Na-diffusion into the bulk electrode gives rise to a larger capacity loss than the SEI dissolution. Hence, Na-trapping effect is one of the major contribution in the observed capacity losses. Furthermore, the SEI formed in NaPF6-EC:DEC was found to become slightly thicker during 50 h pause, due to self-diffused deintercalation of Na from the carbon black structure coupled by further electrolyte reduction. On the other hand, the SEI in NaTFSI with the same solvent goes into dissolution during pause. The highest SEI dissolution rate and capacity loss was observed in NaPF6-EC:DEC (0.57 μAh/hpause) and the lowest in NaTFSI-EC:DME (0.15 μAh/hpause).

Na3V2(PO4)3 coated by N-doped carbon from ionic liquid as cathode materials for high rate and long-life Na-ion batteries

Nanoscale ◽  
2017 ◽  
Vol 9 (30) ◽  
pp. 10880-10885 ◽  
Author(s):  
Yu Yao ◽  
Yu Jiang ◽  
Hai Yang ◽  
Xizhen Sun ◽  
Yan Yu
Keyword(s):  
Ionic Liquid ◽  
Cathode Materials ◽  
Sol Gel ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
Nitrogen Doped ◽  
Carbon Coated ◽  
Long Life ◽  
Nitrogen Doped Carbon

A facile and simple hydrothermal assisted sol–gel route was developed to prepare nitrogen doped carbon coated Na3V2(PO4)3 nanocomposites (denoted as NVP@C–N) as cathodes for sodium ion batteries (NIBs).

scholarly journals Electrochemical performance of hard carbon negative electrodes for ionic liquid-based sodium ion batteries over a wide temperature range

2015 ◽  
Vol 176 ◽  
pp. 344-349 ◽  
Author(s):  
Changsheng Ding ◽  
Toshiyuki Nohira ◽  
Rika Hagiwara ◽  
Atsushi Fukunaga ◽  
Shoichiro Sakai ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Electrochemical Performance ◽  
Wide Temperature Range ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Hard Carbon ◽  
Temperature Range ◽  
Negative Electrodes

Electrochemical performance of Na/NaFePO4 sodium-ion batteries with ionic liquid electrolytes

2014 ◽  
Vol 2 (16) ◽  
pp. 5655 ◽  
Author(s):  
Nithinai Wongittharom ◽  
Tai-Chou Lee ◽  
Chueh-Han Wang ◽  
Yi-Chen Wang ◽  
Jeng-Kuei Chang
Keyword(s):  
Ionic Liquid ◽  
Electrochemical Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Liquid Electrolytes

New iron-based fluoride cathode material synthesized by non-aqueous ionic liquid for rechargeable sodium ion batteries

2015 ◽  
Vol 186 ◽  
pp. 7-15 ◽  
Author(s):  
Miaoling Jiang ◽  
Xianyou Wang ◽  
Yongqiang Shen ◽  
Hai Hu ◽  
Yanqing Fu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Cathode Material ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Iron Based

scholarly journals Natural stibnite ore (Sb2S3) embedded in sulfur-doped carbon sheets: enhanced electrochemical properties as anode for sodium ions storage

RSC Advances ◽  
2019 ◽  
Vol 9 (27) ◽  
pp. 15210-15216 ◽  
Author(s):  
Mingxiang Deng ◽  
Sijie Li ◽  
Wanwan Hong ◽  
Yunling Jiang ◽  
Wei Xu ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Anode Material ◽  
Specific Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Sodium Ions ◽  
High Specific Capacity ◽  
Antimony Sulfide ◽  
Ideal Candidate

Antimony sulfide (Sb2S3) has drawn widespread attention as an ideal candidate anode material for sodium-ion batteries (SIBs) due to its high specific capacity of 946 mA h g−1 in conversion and alloy reactions.

Highly-dispersed Ge quantum dots in carbon frameworks for ultralong-life sodium ions batteries

2021 ◽  
Author(s):  
Wei Wei ◽  
Yongya Zhang ◽  
Lei Liang ◽  
Kefeng Wang ◽  
Qingfeng Zhou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Anode Material ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Sodium Ions ◽  
Highly Dispersed ◽  
High Theoretical Capacity ◽  
Ge Quantum Dots ◽  
Capacity Decay

Metal germanium (Ge) with a high theoretical capacity of 590 mA h g-1 is regarded as a promising anode material for sodium ion batteries, but it suffers fast capacity decay...

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