Micron-sized encapsulated-type MoS2/C hybrid particulates with an effective confinement effect for improving the cycling performance of LIB anodes

2018 ◽  
Vol 6 (15) ◽  
pp. 6289-6298 ◽  
Author(s):  
Boya Sun ◽  
Qinglei Liu ◽  
Wenshu Chen ◽  
Ning Wang ◽  
Jiajun Gu ◽  
...  
Keyword(s):  
Specific Capacity ◽  
Cycling Performance ◽  
Cycling Stability ◽  
Confinement Effect ◽  
Rate Performance ◽  
High Specific Capacity

Micron-sized encapsulated-type MoS2/C hybrids exhibit high specific capacity, excellent rate performance and remarkable cycling stability when used as anodes in LIBs.

Flower-like C@V2O5 microspheres as highly electrochemically active cathode in aqueous zinc-ion batteries

2020 ◽  
Vol 10 (10) ◽  
pp. 1697-1703
Author(s):  
Zebin Wu ◽  
Wei Zhou ◽  
Zhen Liu ◽  
Yijie Zhou ◽  
Guilin Zeng ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Retention Rate ◽  
Specific Capacity ◽  
Cycling Performance ◽  
Zinc Ion ◽  
Rate Performance ◽  
Capacity Retention ◽  
Facile Hydrothermal Method ◽  
High Specific Capacity ◽  
Electrochemically Active

Flower-like C@V2O5 microspheres with high specific capacity were synthesized by a facile hydrothermal method. The microstructure, specific capacity and electrochemical properties of C@V2O5 microspheres were studied. Results showed that the C@V2O5 microspheres with a diameter of ∼3 m are covered over by V2O5 nanosheets, and therefore have a large surface area which is almost 5 times higher than that of pure V2O5 powders. Moreover, the initial specific capacity of C@V2O5 microsphere is as high as 247.42 mAh · g–1, and after 100 cycles, the capacity retention rate is still 99.4%. Compared with pure V2O5, flower-like C@V2O5 microspheres show higher discharge specific capacity, better rate performance and more stable cycling performance.

Ti3+ self-doped Li4Ti5O12 nanosheets as anode materials for high performance lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (30) ◽  
pp. 23278-23282 ◽  
Author(s):  
Sen Nie ◽  
Chunsong Li ◽  
Hongrui Peng ◽  
Guicun Li ◽  
Kezheng Chen
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Rate Performance ◽  
High Specific Capacity

Ti3+ self-doped Li4Ti5O12 (S-LTO) nanosheets exhibit high specific capacity, excellent rate performance and outstanding cycling stability.

scholarly journals Fabrication of core–shell, yolk–shell and hollow Fe3O4@carbon microboxes for high-performance lithium-ion batteries

2017 ◽  
Vol 1 (5) ◽  
pp. 823-830 ◽  
Author(s):  
Hao Tian ◽  
Hao Liu ◽  
Tianyu Yang ◽  
Jean-Pierre Veder ◽  
Guoxiu Wang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Cycling Stability ◽  
Core Shell ◽  
Rate Performance ◽  
High Specific Capacity ◽  
Hollow Structures ◽  
The Core

Fe3O4@C microboxes with core–shell, yolk–shell and hollow structures were synthesized, the core–shell microboxes exhibited high specific capacity, good rate performance, and exceptional cycling stability.

scholarly journals Wire-in-Wire TiO2/C Nanofibers Free-Standing Anodes for Li-Ion and K-Ion Batteries with Long Cycling Stability and High Capacity

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Die Su ◽  
Yi Pei ◽  
Li Liu ◽  
Zhixiao Liu ◽  
Junfang Liu ◽  
...  
Keyword(s):  
Critical Role ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
High Capacity ◽  
Cycling Stability ◽  
Free Standing ◽  
High Specific Capacity ◽  
Tetracarboxylic Dianhydride ◽  
Carbon Network

AbstractWearable and portable mobile phones play a critical role in the market, and one of the key technologies is the flexible electrode with high specific capacity and excellent mechanical flexibility. Herein, a wire-in-wire TiO2/C nanofibers (TiO2 ww/CN) film is synthesized via electrospinning with selenium as a structural inducer. The interconnected carbon network and unique wire-in-wire nanostructure cannot only improve electronic conductivity and induce effective charge transports, but also bring a superior mechanic flexibility. Ultimately, TiO2 ww/CN film shows outstanding electrochemical performance as free-standing electrodes in Li/K ion batteries. It shows a discharge capacity as high as 303 mAh g−1 at 5 A g−1 after 6000 cycles in Li half-cells, and the unique structure is well-reserved after long-term cycling. Moreover, even TiO2 has a large diffusion barrier of K+, TiO2 ww/CN film demonstrates excellent performance (259 mAh g−1 at 0.05 A g−1 after 1000 cycles) in K half-cells owing to extraordinary pseudocapacitive contribution. The Li/K full cells consisted of TiO2 ww/CN film anode and LiFePO4/Perylene-3,4,9,10-tetracarboxylic dianhydride cathode possess outstanding cycling stability and demonstrate practical application from lighting at least 19 LEDs. It is, therefore, expected that this material will find broad applications in portable and wearable Li/K-ion batteries.

scholarly journals Rechargeable Aqueous Zinc-Ion Batteries in MgSO4/ZnSO4 Hybrid Electrolytes

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Yingmeng Zhang ◽  
Henan Li ◽  
Shaozhuan Huang ◽  
Shuang Fan ◽  
Lingna Sun ◽  
...  
Keyword(s):  
Current Density ◽  
Specific Capacity ◽  
Cost Effective ◽  
Reversible Capacity ◽  
Zinc Ion ◽  
Rate Performance ◽  
Capacity Fading ◽  
Battery System ◽  
High Specific Capacity ◽  
A Current

AbstractMgSO4 is chosen as an additive to address the capacity fading issue in the rechargeable zinc-ion battery system of MgxV2O5·nH2O//ZnSO4//zinc. Electrolytes with different concentration ratios of ZnSO4 and MgSO4 are investigated. The batteries measured in the 1 M ZnSO4−1 M MgSO4 electrolyte outplay other competitors, which deliver a high specific capacity of 374 mAh g−1 at a current density of 100 mA g−1 and exhibit a competitive rate performance with the reversible capacity of 175 mAh g−1 at 5 A g−1. This study provides a promising route to improve the performance of vanadium-based cathodes for aqueous zinc-ion batteries with electrolyte optimization in cost-effective electrolytes.

Luminescence sensing and supercapacitor performances of a new (3,3)-connected Cd-MOF

CrystEngComm ◽  
2019 ◽  
Vol 21 (41) ◽  
pp. 6186-6195 ◽  
Author(s):  
Qian-Qian Liu ◽  
Ke-Fen Yue ◽  
Xian-Jun Weng ◽  
Yao-Yu Wang
Keyword(s):  
Specific Capacity ◽  
Cycling Stability ◽  
High Specific Capacity ◽  
Good Cycling Stability

The Cd-MOF shows high luminescence sensing for Cu2+ and nitrobenzene. The Cd-MOF electrode exhibits high specific capacity and good cycling stability.

scholarly journals Urchin-like NiCoP coated with a carbon layer as a high-performance electrode for all-solid-state asymmetric supercapacitors

2020 ◽  
Vol 1 (3) ◽  
pp. 481-494 ◽  
Author(s):  
Jingzhou Ling ◽  
Hanbo Zou ◽  
Wei Yang ◽  
Shengzhou Chen
Keyword(s):  
Solid State ◽  
High Performance ◽  
Specific Capacity ◽  
Physical Structure ◽  
Carbon Layer ◽  
Cycling Stability ◽  
High Conductivity ◽  
Asymmetric Supercapacitors ◽  
High Specific Capacity ◽  
Excellent Cycling Stability

The NiCoP@C-ULAs composite with high conductivity, abundant pores and good physical structure shows high specific capacity and excellent cycling stability.

scholarly journals Synthesis and electrochemical performance of NaV3O8 nanobelts for Li/Na-ion batteries and aqueous zinc-ion batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (36) ◽  
pp. 20549-20556 ◽  
Author(s):  
Fang Hu ◽  
Di Xie ◽  
Fuhan Cui ◽  
Dongxu Zhang ◽  
Guihong Song
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacity ◽  
Zinc Ion ◽  
Cycle Performance ◽  
Rate Performance ◽  
High Specific Capacity ◽  
Excellent Electrochemical Performance

Compared to the electrochemical performance for LIBs and NIBs, NaV3O8 nanobelts electrode for ZIBs shows excellent electrochemical performance, including high specific capacity of 421 mA h g−1 at 100 mA g−1, good rate performance and cycle performance.

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