Constructing the Efficient Ion Diffusion Pathway by Introducing Oxygen Defects in Mn2O3 for High-Performance Aqueous Zinc-Ion Batteries

2020 ◽  
Vol 12 (25) ◽  
pp. 28199-28205 ◽  
Author(s):  
Nannan Liu ◽  
Xian Wu ◽  
Yanyou Yin ◽  
Aosai Chen ◽  
Chenyang Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Zinc Ion ◽  
Ion Diffusion ◽  
Diffusion Pathway ◽  
Oxygen Defects

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.

Oxygen Defects Engineering of VO 2 · x H 2 O Nanosheets via In Situ Polypyrrole Polymerization for Efficient Aqueous Zinc Ion Storage

2021 ◽  
pp. 2103070
Author(s):  
Zhengchunyu Zhang ◽  
Baojuan Xi ◽  
Xiao Wang ◽  
Xiaojian Ma ◽  
Weihua Chen ◽  
...  
Keyword(s):  
Zinc Ion ◽  
Oxygen Defects ◽  
Ion Storage

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.

A High-Performance Free-Standing Zn Anode for Flexible Zinc-Ion Batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Chenxi Gao ◽  
Jiawei Wang ◽  
Yuan Huang ◽  
Zixuan Li ◽  
Jiyan Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Low Cost ◽  
High Energy ◽  
Zinc Ion ◽  
High Energy Density ◽  
Free Standing ◽  
Energy Device ◽  
Zn Anode ◽  
Significant Attention

Zinc-ion batteries (ZIBs) have attracted significant attention owing to their high safety, high energy density, and low cost. ZIBs have been studied as a potential energy device for portable and...

Vanadium‐Containing Layered Materials as High‐Performance Cathodes for Aqueous Zinc‐Ion Batteries

2021 ◽  
pp. 2100505
Author(s):  
Courtney‐Elyce M. Lewis ◽  
Joseph F. S. Fernando ◽  
Dumindu P. Siriwardena ◽  
Konstantin L. Firestein ◽  
Chao Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Layered Materials ◽  
Zinc Ion

Crystal water enlarging the interlayer spacing of ultrathin V2O5·4VO2·2.72H2O nanobelts for high-performance aqueous zinc-ion battery

2021 ◽  
Vol 411 ◽  
pp. 128533
Author(s):  
Ting-Ting Lv ◽  
Yang-Yi Liu ◽  
Hai Wang ◽  
Sheng-Yang Yang ◽  
Chun-Sen Liu ◽  
...  
Keyword(s):  
High Performance ◽  
Interlayer Spacing ◽  
Zinc Ion ◽  
Crystal Water

CaV6O16•3H2O nanorods as cathode for high-performance aqueous zinc-ion battery

2020 ◽  
pp. 129285
Author(s):  
Na Xu ◽  
Xintong Lian ◽  
Hongjiao Huang ◽  
Yanchen Ma ◽  
Linlin Li ◽  
...  
Keyword(s):  
High Performance ◽  
Zinc Ion
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