scholarly journals NaV6O15 microflowers as a stable cathode material for high-performance aqueous zinc-ion batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 6807-6813
Author(s):  
Runxia Li ◽  
Chao Guan ◽  
Xiaofei Bian ◽  
Xin Yu ◽  
Fang Hu
Keyword(s):  
Cathode Material ◽  
High Performance ◽  
Specific Capacity ◽  
Cycling Performance ◽  
Zinc Ion ◽  
High Specific Capacity

NaV6O15 microflowers were synthesized as a stable cathode material for aqueous zinc ion batteries, which show a high specific capacity and excellent long-term cycling performance.

scholarly journals Enhanced Reversible Zinc Ion Intercalation in Deficient Ammonium Vanadate for High-Performance Aqueous Zinc-Ion Battery

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Quan Zong ◽  
Wei Du ◽  
Chaofeng Liu ◽  
Hui Yang ◽  
Qilong Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Coulombic Efficiency ◽  
Specific Capacity ◽  
Interlayer Spacing ◽  
Zinc Ion ◽  
Carbon Cloth ◽  
High Specific Capacity ◽  
Irreversible Reaction ◽  
Ammonium Vanadate ◽  
Structure Degradation

AbstractAmmonium vanadate with bronze structure (NH4V4O10) is a promising cathode material for zinc-ion batteries due to its high specific capacity and low cost. However, the extraction of $${\text{NH}}_{{4}}^{ + }$$ NH 4 + at a high voltage during charge/discharge processes leads to irreversible reaction and structure degradation. In this work, partial $${\text{NH}}_{{4}}^{ + }$$ NH 4 + ions were pre-removed from NH4V4O10 through heat treatment; NH4V4O10 nanosheets were directly grown on carbon cloth through hydrothermal method. Deficient NH4V4O10 (denoted as NVO), with enlarged interlayer spacing, facilitated fast zinc ions transport and high storage capacity and ensured the highly reversible electrochemical reaction and the good stability of layered structure. The NVO nanosheets delivered a high specific capacity of 457 mAh g−1 at a current density of 100 mA g−1 and a capacity retention of 81% over 1000 cycles at 2 A g−1. The initial Coulombic efficiency of NVO could reach up to 97% compared to 85% of NH4V4O10 and maintain almost 100% during cycling, indicating the high reaction reversibility in NVO electrode.

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.

C–S@PANI composite with a polymer spherical network structure for high performance lithium–sulfur batteries

2016 ◽  
Vol 18 (1) ◽  
pp. 261-266 ◽  
Author(s):  
Junkai Wang ◽  
Kaiqiang Yue ◽  
Xiaodan Zhu ◽  
Kang L. Wang ◽  
Lianfeng Duan
Keyword(s):  
High Performance ◽  
Specific Capacity ◽  
3D Structure ◽  
Conductive Polymer ◽  
Cycling Performance ◽  
High Specific Capacity ◽  
Pani Composite ◽  
Lithium Sulfur Batteries ◽  
And Migration ◽  
Lithium Sulfur

C–S@PANI composite with conductive polymer spherical network was synthesized. Its 3D structure inhibits the dissolution and migration of polysulfides into electrolyte, delivering high specific capacity and a stable cycling performance.

Electrospun Li3V2(PO4)3 nanocubes/carbon nanofibers as free-standing cathodes for high-performance lithium-ion batteries

2019 ◽  
Vol 7 (24) ◽  
pp. 14681-14688 ◽  
Author(s):  
Yi Peng ◽  
Rou Tan ◽  
Jianmin Ma ◽  
Qiuhong Li ◽  
Taihong Wang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Carbon Nanofibers ◽  
High Performance ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Free Standing ◽  
High Specific Capacity ◽  
Electrospinning Method

A novel free-standing architecture with Li3V2(PO4)3 nanocubes embedded in N-doped carbon nanofibers has been successfully prepared through a facile ionic liquid-assisted electrospinning method, which exhibits an outstanding electrochemical performance including high specific capacity, stable cycling performance and superior rate capability.

Hierarchical NiCo2S4 hollow spheres as a high performance anode for lithium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (103) ◽  
pp. 84711-84717 ◽  
Author(s):  
Rencheng Jin ◽  
Dongmei Liu ◽  
Chunping Liu ◽  
Gang Liu
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Specific Capacity ◽  
Hollow Spheres ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Performance ◽  
High Specific Capacity ◽  
Good Rate Capability

Hierarchical NiCo2S4 hollow spheres have been fabricated, which exhibit a high specific capacity, good rate capability and stable cycling performance.

scholarly journals V2O5 Nanospheres with Mixed Vanadium Valences as High Electrochemically Active Aqueous Zinc-Ion Battery Cathode

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Fei Liu ◽  
Zixian Chen ◽  
Guozhao Fang ◽  
Ziqing Wang ◽  
Yangsheng Cai ◽  
...  
Keyword(s):  
High Performance ◽  
Specific Capacity ◽  
Hollow Spheres ◽  
Rate Capability ◽  
Cycling Performance ◽  
Zinc Ion ◽  
Ion Diffusion ◽  
Electrochemically Active ◽  
Ion Storage ◽  
Engineering Strategy

Abstract A V4+-V2O5 cathode with mixed vanadium valences was prepared via a novel synthetic method using VOOH as the precursor, and its zinc-ion storage performance was evaluated. The products are hollow spheres consisting of nanoflakes. The V4+-V2O5 cathode exhibits a prominent cycling performance, with a specific capacity of 140 mAh g−1 after 1000 cycles at 10 A g−1, and an excellent rate capability. The good electrochemical performance is attributed to the presence of V4+, which leads to higher electrochemical activity, lower polarization, faster ion diffusion, and higher electrical conductivity than V2O5 without V4+. This engineering strategy of valence state manipulation may pave the way for designing high-performance cathodes for elucidating advanced battery chemistry.

Hierarchical CuOx–Co3O4 heterostructure nanowires decorated on 3D porous nitrogen-doped carbon nanofibers as flexible and free-standing anodes for high-performance lithium-ion batteries

2019 ◽  
Vol 7 (13) ◽  
pp. 7691-7700 ◽  
Author(s):  
Huanhui Chen ◽  
Jiao He ◽  
Yongliang Li ◽  
Shan Luo ◽  
Lingna Sun ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Free Standing ◽  
High Specific Capacity ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

The free-standing CuOx–Co3O4@PNCNF anode delivers high specific capacity, rate capability, and cycling performance for lithium-ion batteries.

A high-performance regenerated graphite extracted from discarded lithium-ion batteries

2021 ◽  
Author(s):  
Dingshan Ruan ◽  
Fengmei Wang ◽  
Lin Wu ◽  
Ke Du ◽  
Zhenhua Zhang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycling Performance ◽  
High Specific Capacity

Lithium-ion batteries based on G-A-T-SGT@C anode display high specific capacity, excellent rate capability and outstanding cycling performance.

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.

Layered Ni0.22V2O5·nH2O as high-performance cathode material for aqueous zinc-ion batteries

Ionics ◽  
2021 ◽  
Author(s):  
Min Wei ◽  
Wen Luo ◽  
Danrui Yu ◽  
Xiao Liang ◽  
Wei Wei ◽  
...  
Keyword(s):  
Cathode Material ◽  
High Performance ◽  
Zinc Ion
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