Rational Design of Embedded CoTe2 Nanoparticles in Freestanding N-Doped Multichannel Carbon Fibers for Sodium-Ion Batteries with Ultralong Cycle Lifespan

2021 ◽  
Author(s):  
Wei Zhang ◽  
Xuewen Wang ◽  
Ka Wai Wong ◽  
Wang Zhang ◽  
Tong Chen ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
Rational Design ◽  
Sodium Ion ◽  
Sodium Ion Batteries

Co-construction of sulfur vacancies and carbon confinement in V5S8/CNFs to induce an ultra-stable performance for half/full sodium-ion and potassium-ion batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Lihong Xu ◽  
Xiaochuan Chen ◽  
Wenti Guo ◽  
Lingxing Zeng ◽  
Tao Yang ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
Anode Materials ◽  
High Energy ◽  
Potassium Ion ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Vanadium Sulfide ◽  
Stable Performance

To construct anode materials for sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs) with high energy, and long lifespan is significant and still challenging. Here, sulfur-defective vanadium sulfide/carbon fibers composite (D-V5S8/CNFs)...

Rational Design of Ti-Based Oxygen Redox Layered Oxides for Advanced Sodium-ion Batteries

2021 ◽  
Author(s):  
Jaewoon Lee ◽  
Sojung Koo ◽  
Jinwoo Lee ◽  
Duho Kim
Keyword(s):  
Transition Metals ◽  
Redox Reactions ◽  
Rational Design ◽  
Alkali Metals ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Layered Oxides

Considering Mn4+ (3d3)-based cations, various layered oxides (A[AyM1-y]O2, where A and M refer to alkali metals and transition metals, respectively) exhibiting oxygen-redox reactions have been investigated extensively to achieve high...

scholarly journals Rational design and kinetics study of flexible sodium-ion full batteries based on binder-free composite film electrodes

2019 ◽  
Vol 7 (16) ◽  
pp. 9890-9902 ◽  
Author(s):  
Keliang Zhang ◽  
Xudong Zhang ◽  
Wen He ◽  
Wangning Xu ◽  
Guogang Xu ◽  
...  
Keyword(s):  
Composite Film ◽  
Carbon Fibers ◽  
Filter Paper ◽  
Rational Design ◽  
Sodium Ion ◽  
Kinetics Study ◽  
Hard Carbon ◽  
Binder Free

Flexible sodium-ion full batteries were rationally designed by using hard carbon fibers from carbonized filter paper as a conductive supporting framework.

scholarly journals Rational Design of Layered SnS2 on Ultralight Graphene Fiber Fabrics as Binder-Free Anodes for Enhanced Practical Capacity of Sodium-Ion Batteries

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Zongling Ren ◽  
Jie Wen ◽  
Wei Liu ◽  
Xiaoping Jiang ◽  
Yanheng Dong ◽  
...  
Keyword(s):  
Rational Design ◽  
Coulombic Efficiency ◽  
Specific Capacity ◽  
Sodium Ion ◽  
Carbon Cloth ◽  
Sodium Ion Batteries ◽  
Active Components ◽  
Weight Percentage ◽  
Practical Capacity ◽  
Binder Free

Abstract Generally, the practical capacity of an electrode should include the weight of non-active components such as current collector, polymer binder, and conductive additives, which were as high as 70 wt% in current reported works, seriously limiting the practical capacity. This work pioneered the usage of ultralight reduced graphene fiber (rGF) fabrics as conductive scaffolds, aiming to reduce the weight of non-active components and enhance the practical capacity. Ultrathin SnS2 nanosheets/rGF hybrids were prepared and used as binder-free electrodes of sodium-ion batteries (SIBs). The interfused graphene fibers endow the electrode a porous, continuous, and conductive network. The in situ phase transformation from SnO2 to SnS2 could preserve the strong interfacial interactions between SnS2 and graphene. Benefitting from these, the designed binder-free electrode delivers a high specific capacity of 500 mAh g−1 after 500 cycles at a current rate of 0.5 A g−1 with almost 100% Coulombic efficiency. Furthermore, the weight percentage of SnS2 in the whole electrode could reach up to 67.2 wt%, much higher than that of common electrode configurations using Cu foil, Al foil, or carbon cloth, significantly highlighting the ultralight characters and advantages of the rGF fabrics for using as binder-free electrodes of SIBs.

One-dimensional coaxial Sb and carbon fibers with enhanced electrochemical performance for sodium-ion batteries

2018 ◽  
Vol 428 ◽  
pp. 448-454 ◽  
Author(s):  
Mengnan Zhu ◽  
Xiangzhong Kong ◽  
Hulin Yang ◽  
Ting Zhu ◽  
Shuquan Liang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Carbon Fibers ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
One Dimensional ◽  
Enhanced Electrochemical Performance

Rational design of Na(Li1/3Mn1/2Cr1/6)O2 exhibiting cation–anion-coupled redox reactions with superior electrochemical, thermodynamic, atomic, and chemomechanical properties for advanced sodium-ion batteries

2018 ◽  
Vol 6 (37) ◽  
pp. 18036-18043 ◽  
Author(s):  
Duho Kim ◽  
Maenghyo Cho ◽  
Kyeongjae Cho
Keyword(s):  
Energy Density ◽  
Redox Reactions ◽  
Rational Design ◽  
High Energy ◽  
Sodium Ion ◽  
High Energy Density ◽  
Sodium Ion Batteries

Based on a cation–anion-coupled redox paradigm, Na(Li1/3Mn1/2Cr1/6)O2 is systematically designed to use rational anion redox reactions (O2−/O−) for high energy density cathodes in sodium-ion batteries.

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