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.

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.

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.

scholarly journals Polypyrrole Coated Mn–Fe Bimetallic Oxides as High Stability Anode for Lithium-ion Batteries

2021 ◽  
Author(s):  
Yuan Fang ◽  
Tengfei Li ◽  
Fen Wang ◽  
Jianfeng Zhu
Keyword(s):  
Metal Oxides ◽  
Lithium Ion Batteries ◽  
Volume Change ◽  
Current Density ◽  
Transition Metal Oxides ◽  
High Stability ◽  
Specific Capacity ◽  
Lithium Ion ◽  
High Specific Capacity ◽  
A Current

Abstract Transition metal oxides as anode materials have received extensive research owing to the high specific capacity. Whereas, the rapid decline of battery capacity caused by volume expansion and low electrical conductivity hinders the practical application of transition metal oxides. This study reported a pseudo-capacitance material polypyrrole coated Fe2O3/Mn2O3 composites material as a high stability anode for lithium-ion batteries. The polypyrrole coating layer can not only serve as a conductive network to improve electrode conductivity but also can be used as a protective buffer layer to suppress the volume change of Fe2O3/Mn2O3 during the charging and discharging process. At the same time, the porous structure of Fe2O3/Mn2O3 composite can not only provide more active sites for lithium storage but also play a certain buffer effect on the volume change of the material. Polypyrrole-coated Fe2O3/Mn2O3 composite as the anode for lithium-ion batteries shows great electrochemical storage performance, with high specific capacity (627 mAh g− 1 at a current density of 1A g− 1), great cycle stability (the capacity not shows obvious signs of attenuation after 500 cycles) and rate performance (432 mAh g− 1 at a current density of 2.0 A g− 1).

Cr3+-doped Li3VO4 for enhanced Li+ storage

2019 ◽  
Vol 13 (02) ◽  
pp. 2050005
Author(s):  
Guisheng Liang ◽  
Xingxing Jin ◽  
Cihui Huang ◽  
Lijie Luo ◽  
Yongjun Chen ◽  
...  
Keyword(s):  
Low Cost ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Rate Performance ◽  
Orthorhombic Crystal ◽  
Orthorhombic Crystal Structure ◽  
High Specific Capacity ◽  
Safe Working

Li3VO4 has gained significant attention as a promising anode material for lithium-ion batteries owing to its high specific capacity, low cost and safe working potential. Unfortunately, its disappointing electronic conductivity limits its rate performance. To address this problem, a series of Cr[Formula: see text]-doped Li3VO4 compounds are synthesized by solid-state reaction. The obtained Li[Formula: see text]Cr[Formula: see text]V[Formula: see text]O4 compounds ([Formula: see text] and 0.02) have the same orthorhombic crystal structure (Pnm21 space group), suggesting the successful Cr[Formula: see text] doping in Li3VO4. Compared with Li3VO4, Li[Formula: see text]Cr[Formula: see text]V[Formula: see text]O4 exhibits a two orders of magnitude larger electronic conductivity. Additional benefits of the Cr[Formula: see text] doping include the increase of the Li[Formula: see text] diffusion coefficient and the decrease of the particle size. Consequently, Li[Formula: see text]Cr[Formula: see text]V[Formula: see text]O4 displays not only a large reversible capacity (363[Formula: see text]mAh g[Formula: see text] at 60[Formula: see text]mA g[Formula: see text] and superior cyclic stability (86.6% capacity retention after 1000 cycles at 1200[Formula: see text]mA g[Formula: see text] but also decent rate performance (147[Formula: see text]mAh g[Formula: see text] at 1200[Formula: see text]mA g[Formula: see text].

scholarly journals Nitrogen-doped carbon-encapsulated SnO2–SnS/graphene sheets with improved anodic performance in lithium ion batteries

2015 ◽  
Vol 3 (47) ◽  
pp. 24148-24154 ◽  
Author(s):  
Jieqiong Shan ◽  
Yuxin Liu ◽  
Ping Liu ◽  
Yanshan Huang ◽  
Yuezeng Su ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Current Density ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Graphene Sheets ◽  
Core Shell ◽  
High Specific Capacity ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon ◽  
A Current

A dual-doping approach for N–C@SnO2–SnS/GN with 2D core–shell architecture has been developed. Used as the anode material in LIBs, it delivers a high specific capacity of 1236 mA h g−1 at a current density of 0.1 A g−1 after 110 cycles.

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.

Molybdenum-doped lithium-rich layered-structured cathode material Li1.2Ni0.2Mn0.6O2 with high specific capacity and improved rate performance

2015 ◽  
Vol 168 ◽  
pp. 234-239 ◽  
Author(s):  
Yong Zang ◽  
Chu-Xiong Ding ◽  
Xiao-Cheng Wang ◽  
Zhao-Yin Wen ◽  
Chun-Hua Chen
Keyword(s):  
Cathode Material ◽  
Specific Capacity ◽  
Rate Performance ◽  
High Specific Capacity

Lower ammoniation activation energy of CoN nanosheets by Mn doping with superior energy storage performance for secondary ion batteries

Nanoscale ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 5581-5590 ◽  
Author(s):  
Lin Zhu ◽  
Ziliang Chen ◽  
Yun Song ◽  
Pei Wang ◽  
Yingchang Jiang ◽  
...  
Keyword(s):  
Activation Energy ◽  
Energy Storage ◽  
Anode Material ◽  
Current Density ◽  
Reversible Capacity ◽  
Mn Doping ◽  
High Reversible Capacity ◽  
Storage Performance ◽  
Secondary Ion ◽  
A Current

Mn0.33Co0.67N nanosheets were reported as a novel anode material for LIBs with a high reversible capacity close to 900 mA h g−1 after 150 cycles at a current density of 500 mA g−1, which is superior to 749 mA h g−1 of undoped CoN due to the enhancement of regeneration of Co–N bonds.

scholarly journals Integrated Anode Electrode Composited Cu–Sn Alloy and Separator for Microscale Lithium Ion Batteries

Materials ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 603 ◽  
Author(s):  
Yuxia Liu ◽  
Kai Jiang ◽  
Shuting Yang
Keyword(s):  
Current Density ◽  
Active Material ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Cycle Performance ◽  
Electrode Structure ◽  
Microelectronic Devices ◽  
Anode Electrode ◽  
Integrated Anode ◽  
A Current

A novel integrated electrode structure was designed and synthesized by direct electrodepositing of Cu–Sn alloy anode materials on the Celgard 2400 separator (Cel-CS electrode). The integrated structure of the Cel-CS electrode not only greatly simplifies the battery fabrication process and increases the energy density of the whole electrode, but also buffers the mechanical stress caused by volume expansion of Cu–Sn alloy active material; thus, effectively preventing active material falling off from the substrate and improving the cycle stability of the electrode. The Cel-CS electrode exhibits excellent cycle performance and superior rate performance. A capacity of 728 mA·h·g−1 can be achieved after 250 cycles at the current density of 100 mA·g−1. Even cycled at a current density of 5 A·g−1 for 650 cycles, the Cel-CS electrode maintained a specific capacity of 938 mA·h·g−1, which illustrates the potential application prospects of the Cel-CS electrode in microelectronic devices and systems.

The displacement reaction mechanism of the CuV2O6 nanowire cathode for rechargeable aqueous zinc ion batteries

2020 ◽  
Vol 49 (4) ◽  
pp. 1048-1055 ◽  
Author(s):  
Xin Yu ◽  
Fang Hu ◽  
Fuhan Cui ◽  
Jun Zhao ◽  
Chao Guan ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Cathode Material ◽  
Discharge Capacity ◽  
Current Density ◽  
Zinc Ion ◽  
Cycle Performance ◽  
Displacement Reaction ◽  
Initial Discharge Capacity ◽  
Initial Discharge ◽  
A Current

CuV2O6 nanowires as a cathode material for Zn-ion batteries display an initial discharge capacity of 338 mA h g−1 at a current density of 100 mA g−1 and an excellent cycle performance after 1200 cycles at 5 A g−1.

Sign in / Sign up

Export Citation Format

Share Document