Phenazine-based Spiroborate Complex with Enhanced Electrochemical Stability for Lithium Storage

2021 ◽  
Author(s):  
Ying Hua ◽  
Yuanzhu Huang ◽  
Yujie Wang ◽  
Ya Du ◽  
Haishen Yang
Keyword(s):  
Organic Molecules ◽  
Electrode Materials ◽  
High Capacity ◽  
Electrochemical Stability ◽  
Lithium Storage ◽  
Organic Electrolytes ◽  
Small Organic Molecules ◽  
Redox Active

Due to their readily availability and high capacity, redox-active small organic molecules have been considered as one of the most promising electrode materials. However, their facile dissolution into organic electrolytes...

Designing neurotransmitter dopamine functionalized naphthalene diimide molecular architectures for high-performance organic supercapacitor electrode materials

2021 ◽  
Author(s):  
Madan R Biradar ◽  
Akshay Vinod Salkar ◽  
Pranay Pradeep Morajkar ◽  
Sheshnath V Bhosale ◽  
Sidhanath V Bhosale
Keyword(s):  
High Performance ◽  
Organic Molecules ◽  
Electrode Materials ◽  
Supercapacitor Electrode ◽  
Small Organic Molecules ◽  
Naphthalene Diimide ◽  
Redox Active ◽  
Exciting Opportunity ◽  
Device Applications ◽  
Supercapacitor Electrode Materials

Redox-active small organic molecules have recently attracted an immense interest as electrode materials for supercapacitor device applications. Such redox-active molecular architectural manipulation offers an exciting opportunity to modify the charge...

Engineering flexible carbon nanofibers concatenated MOFs-derived hollow octahedral CoFe2O4 as anode materials for enhanced lithium storage

2021 ◽  
Author(s):  
Fangfang Xue ◽  
Yangyang Li ◽  
Chen Liu ◽  
Zhigang Zhang ◽  
Jun Lin ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Anode Materials ◽  
Electrode Materials ◽  
Electronic Devices ◽  
High Capacity ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Excellent Mechanical Property ◽  
Wearable Electronic ◽  
Wearable Electronic Devices

Constructing suitable electrode materials with high capacity and excellent mechanical property is indispensable for flexible lithium-ion batteries (LIBs) to satisfy the growing flexible and wearable electronic devices. Herein, a necklace-like...

scholarly journals A Redox‐Active 2D Metal–Organic Framework for Efficient Lithium Storage with Extraordinary High Capacity

2020 ◽  
Vol 59 (13) ◽  
pp. 5273-5277 ◽  
Author(s):  
Qiang Jiang ◽  
Peixun Xiong ◽  
Jingjuan Liu ◽  
Zhen Xie ◽  
Qinchao Wang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
High Capacity ◽  
Lithium Storage ◽  
Redox Active ◽  
Metal Organic ◽  
Organic Framework

Al-doped VO2(B) nanobelts as cathode material with enhanced electrochemical properties for lithium-ion batteries

2018 ◽  
Vol 11 (04) ◽  
pp. 1850068 ◽  
Author(s):  
Changlei Niu
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Valence State ◽  
Electrode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Free Standing ◽  
Lattice Volume

Aluminium has shown its superiority in stabilization of the monoclinic VO2(B) in free-standing nanobelts. In this paper, aluminium-doped VO2(B) nanobelts are successfully fabricated by a facile one-step hydrothermal method and used as cathode for lithium-ion battery. XPS results show that Al-doping promotes the formation of high valence state of vanadium in VO2(B) nanobelts. Due to the accommodation of valence state of vanadium and lattice volume, Al-doped VO2(B) nanobelts used as the cathode material for lithium-ion batteries exhibit better lithium storage properties with high capacity of 172[Formula: see text]mAh[Formula: see text]g[Formula: see text] and cycling stability than undoped VO2(B) nanobelts. This work demonstrates that the doping of aluminium can significantly enhance the electrochemical performance of VO2(B), suggesting that appropriate cationic doping is an efficient path to improve the electrochemical performance of electrode materials.

scholarly journals A Redox‐Active 2D Metal–Organic Framework for Efficient Lithium Storage with Extraordinary High Capacity

2020 ◽  
Vol 132 (13) ◽  
pp. 5311-5315 ◽  
Author(s):  
Qiang Jiang ◽  
Peixun Xiong ◽  
Jingjuan Liu ◽  
Zhen Xie ◽  
Qinchao Wang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
High Capacity ◽  
Lithium Storage ◽  
Redox Active ◽  
Metal Organic ◽  
Organic Framework

High-capacity polymer electrodes for potassium batteries

2022 ◽  
Author(s):  
Vahid Ramezankhani ◽  
Igor K. Yakuschenko ◽  
Sergey G. Vasil'ev ◽  
Tatiana A. Savinykh ◽  
Alexander V. Mumyatov ◽  
...  
Keyword(s):  
Energy Density ◽  
Discharge Capacity ◽  
Electrode Materials ◽  
High Capacity ◽  
Redox Active ◽  
Polymer Electrodes ◽  
Specific Discharge

We synthesized and investigated a series of six promising polymeric electrode materials, which incorporate multiple redox-active groups enabling high specific discharge capacity and energy density in potassium half-cells. All investigated...

scholarly journals A Facile Synthesis of MoS2/g-C3N4 Composite as an Anode Material with Improved Lithium Storage Capacity

Materials ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 1730 ◽  
Author(s):  
Ha Tran Huu ◽  
Xuan Dieu Nguyen Thi ◽  
Kim Nguyen Van ◽  
Sung Jin Kim ◽  
Vien Vo
Keyword(s):  
Electron Microscopy ◽  
Electrochemical Performance ◽  
Photoelectron Spectroscopy ◽  
Gas Flow ◽  
Electrode Materials ◽  
High Capacity ◽  
Sodium Molybdate ◽  
Lithium Ion ◽  
Lithium Storage ◽  
X Ray

The demand for well-designed nanostructured composites with enhanced electrochemical performance for lithium-ion batteries electrode materials has been emerging. In order to improve the electrochemical performance of MoS2-based anode materials, MoS2 nanosheets integrated with g-C3N4 (MoS2/g-C3N4 composite) was synthesized by a facile heating treatment from the precursors of thiourea and sodium molybdate at 550 °C under N2 gas flow. The structure and composition of MoS2/g-C3N4 were confirmed by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, infrared spectroscopy, X-ray photoelectron spectroscopy, thermogravimetric analysis and elemental analysis. The lithium storage capability of the MoS2/g-C3N4 composite was evaluated, indicating high capacity and stable cycling performance at 1 C (A·g−1) with a reversible capacity of 1204 mA·h·g−1 for 200 cycles. This result is believed the role of g-C3N4 as a supporting material to accommodate the volume change and improve charge transport for nanostructured MoS2. Additionally, the contribution of the pseudocapacitive effect was also calculated to further clarify the enhancement in Li-ion storage performance of the composite.

Metal nanodots anchored on carbon nanotubes prepared by a facile solid-state redox strategy for superior lithium storage

2020 ◽  
Vol 13 (06) ◽  
pp. 2051039
Author(s):  
Long Huang ◽  
Peng Huang ◽  
Peng Chen ◽  
Yuan-Li Ding
Keyword(s):  
Carbon Nanotubes ◽  
Solid State ◽  
Large Scale ◽  
Electrode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
Synthesis Process ◽  
Energy Storage Materials ◽  
Lithium Storage

Alloying-based electrode materials (e.g. Si, Sn, Sb, Bi, etc.) are the promising anode candidates for next-generation lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs) owing to their high specific capacities, but they suffer from huge volume changes upon lithium/sodium insertion/extraction processes. On the other hand, such alloying anodes usually require a complicated and high energy-consumption synthesis process (e.g. Si anode by a magnesiothermic reduction at over [Formula: see text]C, Sn, Sb and Bi anodes by a high-temperature carbothermic reduction at 600–[Formula: see text]C), thus limiting their practical application for replacing low-cost graphite. In this work, we develop a straightforward solid-state strategy for a general synthesis of metal nanodots (Sn, Sb and Bi) supported on carbon nanotubes (CNTs) by using the reduction potential differences of metal salts and NaBH4 as the reaction power at room temperature. Owing to the very mild reaction, the resulted active component is small enough (2–5[Formula: see text]nm) with diffusion-less and nucleation-less barriers upon alloying/dealloying reaction, thus enabling high electrode stability and high capacity retention. Taking Sn anode as an example, the obtained Sn/CNTs deliver a high reversible capacity of 415[Formula: see text]mAh g[Formula: see text] at 0.5[Formula: see text]A g[Formula: see text] after 1000 cycles without obvious capacity decay. Such findings indicate that the proposed solid-state synthetic method could offer a great potential for realizing large-scale and economic applications of energy storage materials.

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