scholarly journals Preparation and electrochemical performance of VO2(A) hollow spheres as a cathode for aqueous zinc ion batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (60) ◽  
pp. 35117-35123 ◽  
Author(s):  
Runxia Li ◽  
Xin Yu ◽  
Xiaofei Bian ◽  
Fang Hu
Keyword(s):  
Electrochemical Performance ◽  
Hollow Spheres ◽  
Reversible Capacity ◽  
Zinc Ion ◽  
Cycling Stability ◽  
Capacity Retention ◽  
Storage Performance ◽  
Ion Storage ◽  
Good Cycling Stability

VO2(A) hollow spheres exhibit superior zinc ion storage performance, large reversible capacity of 357 mA h g−1 at 0.1 A g−1, and good cycling stability with a capacity retention of 76% over 500 cycles at 5 A g−1

Boosting the potassium-ion storage performance of a carbon anode by chemically regulating oxygen-containing species

2019 ◽  
Vol 55 (94) ◽  
pp. 14147-14150 ◽  
Author(s):  
Rui Zhang ◽  
Haibo Li ◽  
Rui Li ◽  
Denghu Wei ◽  
Wenjun Kang ◽  
...  
Keyword(s):  
Rate Capability ◽  
Reversible Capacity ◽  
Potassium Ion ◽  
Cycling Stability ◽  
Carbon Anode ◽  
Storage Performance ◽  
Ion Storage ◽  
Melamine Foam

The oxygen-containing species in melamine foam carbons are chemically regulated. The optimized carbon anode shows an enhanced potassium-ion storage performance in terms of reversible capacity, rate capability, and long-term cycling stability.

Nanocubes composed of FeS2@C nanoparticles as advanced anode materials for K-ion storage

2020 ◽  
Vol 7 (2) ◽  
pp. 394-401 ◽  
Author(s):  
Yushan Luo ◽  
Mengli Tao ◽  
Jianhua Deng ◽  
Renming Zhan ◽  
Bingshu Guo ◽  
...  
Keyword(s):  
Anode Materials ◽  
Specific Capacity ◽  
Rate Capability ◽  
Cycling Stability ◽  
Core Shell ◽  
Capacity Retention ◽  
Storage Performance ◽  
Ion Storage ◽  
Excellent Cycling Stability ◽  
Unique Core

The unique core–shell structural FeS2@C nanocubes display outstanding K-storage performance with impressive specific capacity, excellent cycling stability and superior rate capability with 73% capacity retention at 2 A g−1.

Improved Zinc-ion Storage Performance of the Metal-free Organic Anode by the Effect of Binder

2021 ◽  
pp. 131092
Author(s):  
Yu Liu ◽  
Meng Huang ◽  
Fangyu Xiong ◽  
Jiexin Zhu ◽  
Qinyou An
Keyword(s):  
Zinc Ion ◽  
Metal Free ◽  
Storage Performance ◽  
Ion Storage

Electrochemical performance and electronic properties of shell LiNi0.5Mn1.5O4 hollow spheres for lithium ion battery

2016 ◽  
Vol 09 (02) ◽  
pp. 1650027 ◽  
Author(s):  
Yongli Cui ◽  
Jiali Wang ◽  
Mingzhen Wang ◽  
Quanchao Zhuang
Keyword(s):  
Activation Energy ◽  
Electrochemical Performance ◽  
Electronic Properties ◽  
Lithium Ion Battery ◽  
Retention Rate ◽  
Hollow Spheres ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Hollow Microspheres ◽  
Cycle Stability

Shell spinel LiNi[Formula: see text]Mn[Formula: see text]O4 hollow microspheres were successfully synthesized by MnCO3 template, and characterized by XRD, SEM, and TEM. The results show that the hollow LiNi[Formula: see text]Mn[Formula: see text]O4 cathode has good cycle stability to reach 124.5, 119.8, and 96.6[Formula: see text]mAh/g at 0.5, 1, and 5 C, the corresponding retention rate of 98.1%, 98.2%, and 98.0% after 50 cycles at 20[Formula: see text]C, and the reversible capacity of 94.6[Formula: see text]mAh/g can be obtained at 1 C rate at 55[Formula: see text]C, 83.3% retention after 100 cycles. As the temperature decreases from 10[Formula: see text]C to [Formula: see text]C, the resistance of [Formula: see text] increases from 5.5 [Formula: see text] to 135 [Formula: see text], [Formula: see text] from 27 [Formula: see text] to 353.2 [Formula: see text], and [Formula: see text] from 12.7 [Formula: see text] to 73.0 [Formula: see text]. Moreover, the B constant and [Formula: see text] activation energy are 4480[Formula: see text]K and 37.22[Formula: see text]KJ/mol for the NTC spinel material, respectively.

scholarly journals Multishelled NiO Hollow Spheres Decorated by Graphene Nanosheets as Anodes for Lithium-Ion Batteries with Improved Reversible Capacity and Cycling Stability

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Lihua Chu ◽  
Meicheng Li ◽  
Yu Wang ◽  
Xiaodan Li ◽  
Zipei Wan ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Graphene Nanosheets ◽  
Hollow Spheres ◽  
Modern Science ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Graphene Sheets ◽  
Reduced Graphene ◽  
Graphene Nanocomposite ◽  
A Current

Graphene-based nanocomposites attract many attentions because of holding promise for many applications. In this work, multishelled NiO hollow spheres decorated by graphene nanosheets nanocomposite are successfully fabricated. The multishelled NiO microspheres are uniformly distributed on the surface of graphene, which is helpful for preventing aggregation of as-reduced graphene sheets. Furthermore, the NiO/graphene nanocomposite shows much higher electrochemical performance with a reversible capacity of 261.5 mAh g−1at a current density of 200 mA g−1after 100 cycles tripled compared with that of pristine multishelled NiO hollow spheres, implying the potential application in modern science and technology.

Synthesis of urchin-like Ni3Si2O5(OH)4 hierarchical hollow spheres/GO composite with enhanced electrochemical properties for high-performance hybrid supercapacitors

2019 ◽  
Vol 48 (31) ◽  
pp. 11749-11762 ◽  
Author(s):  
Xueying Dong ◽  
Yifu Zhang ◽  
Qiushi Wang ◽  
Xiaorong Zhang ◽  
Meng Gao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Hollow Sphere ◽  
High Performance ◽  
Hollow Spheres ◽  
Capacity Retention ◽  
Hybrid Supercapacitors ◽  
Enhanced Electrochemical Performance

Urchin-like Ni3Si2O5(OH)4 hierarchical hollow sphere/GO composites were synthesized, which showed an enhanced electrochemical performance of 165 F g−1 at 0.5 A g−1 and 84% capacity retention after 5000 cycles.

Carbon nanotube-stabilized Co9S8 dual-shell hollow spheres for high-performance K-ion storage

2019 ◽  
Vol 55 (10) ◽  
pp. 1406-1409 ◽  
Author(s):  
Jie Zhou ◽  
Haoyu Zhao ◽  
Qianliang Zhang ◽  
Tieqiang Li ◽  
Yang Li ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Performance ◽  
Hollow Spheres ◽  
Storage Performance ◽  
Ion Storage

Carbon nanotube-stabilized dual-shell Co9S8 hollow spheres are prepared and shown to exhibit enhanced K-ion storage performance.

Effects of vanadium pentoxide with different crystallinities on lithium ion storage performance

CrystEngComm ◽  
2019 ◽  
Vol 21 (43) ◽  
pp. 6641-6651 ◽  
Author(s):  
Lü-Qiang Yu ◽  
Shi-Xi Zhao ◽  
Xia Wu ◽  
Qi-Long Wu ◽  
Jing-Wei Li ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Vanadium Pentoxide ◽  
Anode Materials ◽  
Lithium Ion ◽  
High Crystallinity ◽  
Storage Performance ◽  
Ion Storage ◽  
Low Crystallinity

V2O5 anode materials with low crystallinity release better electrochemical performance than that of V2O5 with high crystallinity.

scholarly journals W2C/WS2 Alloy Nanoflowers as Anode Materials for Lithium-Ion Storage

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1336 ◽  
Author(s):  
Thang Phan Nguyen ◽  
Il Tae Kim
Keyword(s):  
Electrochemical Performance ◽  
Anode Materials ◽  
Transition Metal Dichalcogenides ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Facile Hydrothermal Method ◽  
Initial Discharge ◽  
Ion Storage ◽  
Metal Dichalcogenides ◽  
Prepared Alloy

Recently, composites of MXenes and two-dimensional transition metal dichalcogenides have emerged as promising materials for energy storage applications. In this study, W2C/WS2 alloy nanoflowers (NFs) were prepared by a facile hydrothermal method. The alloy NFs showed a particle size of 200 nm–1 μm, which could be controlled. The electrochemical performance of the as-prepared alloy NFs was investigated to evaluate their potential for application as lithium-ion battery (LIB) anodes. The incorporation of W2C in the WS2 NFs improved their electronic properties. Among them, the W2C/WS2_4h NF electrode showed the best electrochemical performance with an initial discharge capacity of 1040 mAh g−1 and excellent cyclability corresponding to a reversible capacity of 500 mAh g−1 after 100 cycles compared to that of the pure WS2 NF electrode. Therefore, the incorporation of W2C is a promising approach to improve the performance of LIB anode materials.

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