scholarly journals The Zinc-Air Battery Performance with Ni-Doped MnO2 Electrodes

Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1087
Author(s):  
Anuradha Chowdhury ◽  
Kuan-Ching Lee ◽  
Mitchell Shyan Wei Lim ◽  
Kuan-Lun Pan ◽  
Jyy Ning Chen ◽  
...  
Keyword(s):  
Low Cost ◽  
High Energy ◽  
Reduction Reaction ◽  
High Energy Density ◽  
Hydroxyl Group ◽  
Great Promise ◽  
Ion Diffusion ◽  
Electro Deposition ◽  
Discharge Performance ◽  
Air Battery

A rechargeable zinc-air battery shows great promise because of its high energy density, low cost, greater safety, and its environment-friendly properties. However, rechargeable zinc-air battery development has been hindered by the lack of a satisfactory bi-functional electrode. In this research, we report on a solution which uses electro-deposition to dope nickel into manganese on the stainless-steel mesh. The result shows the hydroxyl group on the prepared samples improving its oxygen reduction reaction and oxygen evolution reaction performance, as well as boosting the ion diffusion rate and stabilizing the zinc-air battery charge-discharge performance (overall potential gap dropped from 0.84 V to 0.82 V after 1000 cycles). This study contributes to our understanding of a new method for the improvement of bi-functional electrodes.

scholarly journals Self-discharge of magnesium–sulfur batteries leads to active material loss and poor shelf life

2021 ◽  
Vol 14 (2) ◽  
pp. 890-899
Author(s):  
Hunter O. Ford ◽  
Emily S. Doyle ◽  
Peng He ◽  
William C. Boggess ◽  
Allen G. Oliver ◽  
...  
Keyword(s):  
Energy Density ◽  
Shelf Life ◽  
Low Cost ◽  
Active Material ◽  
High Energy ◽  
High Energy Density ◽  
Great Promise ◽  
Material Loss ◽  
Cost Of Materials ◽  
Sulfur Battery

The magnesium–sulfur battery holds great promise for energy storage due to its high energy density and low cost of materials. Unfortunately, current Mg–S electrolytes are found to enable severe self-discharge, leading to poor battery shelf-life.

scholarly journals The Development of Si Anode Materials by Nanotechnology for Lithium-ion Battery

2021 ◽  
Vol 308 ◽  
pp. 01007
Author(s):  
Minghao He ◽  
Mingzhao Li ◽  
Zeyu Sun
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Low Cost ◽  
Specific Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Commercial Application ◽  
Electrochemical Characteristics ◽  
Discharge Performance

Nowadays, lithium-ion batteries (LIBs) are applied in many fields for their high energy density, low cost, and long cycle life, highly appreciated in a commercial application. Anode materials, a vital factor contributing to high specific capacity, have caught great attention in next-generation LIBs development. Silicon (Si) has been generally considered one of the best substitutes for the commercial carbon-based anodes of lithium-ion batteries due to its extremely high theoretical capacity, excellent charge-discharge performance, and low cost compared with other anode materials. In this review, various silicon-based materials, including nanostructured silicon and silicon composite materials, are summarized, and both advantages and challenges are analyzed. The article emphasizes the remarkable electrochemical characteristics and significant improvement of battery performance by applying nanostructure and silicon composites conjugates. Besides, the challenges and outlook on the nanostructure design of Si and silicon composites are presented.

scholarly journals Silver Decorated Reduced Graphene Oxide as Electrocatalyst for Zinc–Air Batteries

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 462 ◽  
Author(s):  
Laksanaporn Poolnapol ◽  
Wathanyu Kao-ian ◽  
Anongnat Somwangthanaroj ◽  
Falko Mahlendorf ◽  
Mai Thanh Nguyen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Energy ◽  
Rotating Disk Electrode ◽  
High Energy Density ◽  
Air Cathode ◽  
Discharge Performance ◽  
Reduced Graphene ◽  
Air Battery ◽  
Zinc Air Batteries

Due to their low cost and very high energy density, zinc–air batteries (ZABs) exhibit high potential for various energy applications. The electrochemical performance of the air-cathode has a decisive impact on the discharge performance of ZABs because the sluggish oxygen reduction reaction (ORR) kinetics increase the overpotential of the air-cathode and hence the performance of ZABs. In this work, reduced graphene oxide decorated with silver nanoparticles (AgNP/rGO) is synthesized using simultaneous reduction of graphene oxide and silver ions. Different amounts of silver loading are examined for the synthesis of AgNP/rGO. The synthesized AgNP/rGO samples are analyzed using a rotating disk electrode in order to investigate ORR activity. Then, the synthesized AgNP/rGO electrocatalyst is applied on a tubular designed zinc–air battery in order to study the performance of the zinc–air battery. Results demonstrate that AgNP/rGO is an efficient and cost-effective ORR electrocatalyst for its practical application in ZABs.

scholarly journals Na0.76V6O15/Activated Carbon Hybrid Cathode for High-Performance Lithium-Ion Capacitors

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 122
Author(s):  
Renwei Lu ◽  
Xiaolong Ren ◽  
Chong Wang ◽  
Changzhen Zhan ◽  
Ding Nan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Power Density ◽  
Cathode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Artificial Graphite

Lithium-ion hybrid capacitors (LICs) are regarded as one of the most promising next generation energy storage devices. Commercial activated carbon materials with low cost and excellent cycling stability are widely used as cathode materials for LICs, however, their low energy density remains a significant challenge for the practical applications of LICs. Herein, Na0.76V6O15 nanobelts (NaVO) were prepared and combined with commercial activated carbon YP50D to form hybrid cathode materials. Credit to the synergism of its capacitive effect and diffusion-controlled faradaic effect, NaVO/C hybrid cathode displays both superior cyclability and enhanced capacity. LICs were assembled with the as-prepared NaVO/C hybrid cathode and artificial graphite anode which was pre-lithiated. Furthermore, 10-NaVO/C//AG LIC delivers a high energy density of 118.9 Wh kg−1 at a power density of 220.6 W kg−1 and retains 43.7 Wh kg−1 even at a high power density of 21,793.0 W kg−1. The LIC can also maintain long-term cycling stability with capacitance retention of approximately 70% after 5000 cycles at 1 A g−1. Accordingly, hybrid cathodes composed of commercial activated carbon and a small amount of high energy battery-type materials are expected to be a candidate for low-cost advanced LICs with both high energy density and power density.

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...

Novel low-cost, high-energy-density (>700 Wh kg−1) Li-rich organic cathodes for Li-ion batteries

2021 ◽  
Vol 415 ◽  
pp. 128509
Author(s):  
Qihang Yu ◽  
Wu Tang ◽  
Yang Hu ◽  
Jian Gao ◽  
Ming Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Low Cost ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
Li Ion

scholarly journals Monocarborane cluster as a stable fluorine-free calcium battery electrolyte

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kazuaki Kisu ◽  
Sangryun Kim ◽  
Takara Shinohara ◽  
Kun Zhao ◽  
Andreas Züttel ◽  
...  
Keyword(s):  
Room Temperature ◽  
Coulombic Efficiency ◽  
Low Cost ◽  
Ionic Conductivities ◽  
High Energy ◽  
High Energy Density ◽  
Free Calcium ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Battery Electrolyte

AbstractHigh-energy-density and low-cost calcium (Ca) batteries have been proposed as ‘beyond-Li-ion’ electrochemical energy storage devices. However, they have seen limited progress due to challenges associated with developing electrolytes showing reductive/oxidative stabilities and high ionic conductivities. This paper describes a calcium monocarborane cluster salt in a mixed solvent as a Ca-battery electrolyte with high anodic stability (up to 4 V vs. Ca2+/Ca), high ionic conductivity (4 mS cm−1), and high Coulombic efficiency for Ca plating/stripping at room temperature. The developed electrolyte is a promising candidate for use in room-temperature rechargeable Ca batteries.

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