Capacity and phase stability of metal-substituted α-Ni(OH)<sub>2</sub> nanosheets in aqueous Ni–Zn batteries

Kimmel, Samuel W.; Hopkins, Brandon J.; Chervin, Christopher N.; Skeele, Nathaniel L.; Ko, Jesse S.; DeBlock, Ryan H.; Long, Jeffrey W.; Parker, Joseph F.; Hudak, Bethany M.; Stroud, Rhonda M.; Rolison, Debra R.; Rhodes, Christopher P.

doi:10.1039/d1ma00080b

Cited by 21 publications

(5 citation statements)

References 96 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, by increasing the heating time from 30 min to 90 min at 220 °C, the sample retains the β-phase with a slight shift in all peak positions except for (001) and (111). These shifts are attributable to bigger or smaller interlayer spacings occurring from differences in the quantities and coordination of water [ 41 ]. Additionally, the peaks become broader and lower, which indicates that the crystallinity is weaker than N.A.220C.30m.…”

Section: Resultsmentioning

confidence: 99%

A Ten-Minute Synthesis of α-Ni(OH)2 Nanoflakes Assisted by Microwave on Flexible Stainless-Steel for Energy Storage Devices

et al. 2022

View full text Add to dashboard Cite

Although numerous methods have been widely used to prepare nickel hydroxide materials, there is still a demand for lowering the required heating time, temperature, and cost with maintaining a high-quality nanomaterial for electrochemical energy storage. In this research, we study the relationship between microwave-assisted heating parameters and material properties of nickel hydroxide nanoflakes and evaluate their effect on electrochemical performance. X-ray diffraction spectra show that the samples prepared at the highest temperature of 220 °C have crystallized in the beta phase of nickel hydroxide crystal. While the sample synthesized at 150 °C in 30 min contains both beta and alpha phases. Interestingly, we obtained the pure alpha phase at 150 °C in just 10 min. A scanning electron microscope shows that increasing the temperature and heating time leads to enlarging the diameter of the macro-porous flower-like clusters of interconnected nanoflakes. Electrochemical measurements in potassium hydroxide electrolytes demonstrate that the alpha phase’s electrodes have much higher capacities than samples containing only the beta phase. The maximum areal capacity of 17.7 µAh/cm2 and gravimetric capacity of 35.4 mAh/g are achieved, respectively, at 0.2 mA/cm2 and 0.4 A/g, with a small equivalent series resistance value of 0.887 ohms on flexible stainless-steel mesh as a current collector. These improved nickel hydroxide electrodes can be ascribed to utilizing the diffusion-controlled redox reactions that are detected up to the high scan of 100 mV/s. Such fast charge-discharge processes expand the range of potential applications. Our nickel hydroxide electrode, with its rapid preparation at medium temperature, can be a cost-effective candidate for flexible supercapacitors and batteries.

show abstract

Section: Resultsmentioning

confidence: 99%

A Ten-Minute Synthesis of α-Ni(OH)2 Nanoflakes Assisted by Microwave on Flexible Stainless-Steel for Energy Storage Devices

et al. 2022

View full text Add to dashboard Cite

show abstract

“…[81,90] Additionally, Diaz-Morales et al [91] showed that Zn-doped Ni-(OH) 2 cathode requires an increased overpotential for oxygen evolution reaction; thus, as an additive, it is less suited for oxygen generation catalysis, albeit this result might be beneficial for utilizing this material for cathode formulation and design. [92,93] Table 2 provides a summary of the inorganic additives being utilized with the aim to improve the performance of the NiOOH cathode.…”

Section: Additive's Rolementioning

confidence: 99%

Alkaline Ni−Zn Rechargeable Batteries for Sustainable Energy Storage: Battery Components, Deterioration Mechanisms, and Impact of Additives

Bogomolov,

Ein‐Eli

2023

ChemSusChem

View full text Add to dashboard Cite

The demand for long‐term, sustainable, and low‐cost battery energy storage systems with high power delivery capabilities for stationary grid‐scale energy storage, as well as the necessity for safe lithium‐ion battery alternatives, has renewed interest in aqueous zinc‐based rechargeable batteries. The Alkaline Ni‐Zn rechargeable battery chemistry was identified as a promising technology for sustainable energy storage applications, albeit a considerable investment in academic research, it still fails to deliver the requisite performance. It is hampered by a relatively short‐term electrode degradation, resulting in a decreased cycle life. Dendrite formation, parasitic hydrogen evolution, corrosion, passivation, and dynamic morphological growth are all challenging and interrelated possible degradation processes. This Review elaborates on the components of Ni‐Zn batteries and their deterioration mechanisms, focusing on the influence of electrolyte additives as a cost‐effective, simple, yet versatile approach for regulating these phenomena and extending the battery cycle life. Even though a great deal of effort has been dedicated to this subject, the challenges remain. This highlights that a breakthrough is to be expected, but it will necessitate not only an experimental approach, but also a theoretical and computational one, including artificial intelligence (AI) and machine learning (ML).

show abstract

“…The α-Ni(OH) 2 layer forming on the electrode surface exhibits an insulating behavior. The β-Ni(OH) 2 , on the other hand, is thermodynamically stable in alkaline solutions, but offers a much lower theoretical capacity of 289 mAh g −1 , with practical capacities ranging from 237 to 263 mAh g −1 [61]. This is because the transformation to β-NiOOH only involves a single electron transfer.…”

Section: Positive Electrodementioning

confidence: 99%

A Tale of Nickel-Iron Batteries: Its Resurgence in the Age of Modern Batteries

Abarro,

Gavan,

Loresca

et al. 2023

Batteries

View full text Add to dashboard Cite

The nickel-iron (Ni-Fe) battery is a century-old technology that fell out of favor compared to modern batteries such as lead–acid and lithium-ion batteries. However, in the last decade, there has been a resurgence of interest because of its robustness and longevity, making it well-suited for niche applications, such as off-grid energy storage systems. Currently, extensive research is focused on addressing perennial issues such as iron passivation and hydrogen evolution reaction, which limit the battery’s energy density, cyclability, and rate performance. Despite efforts to modify electrode composition and morphology, these issues persist, warranting a deeper look at the development story of Ni-Fe battery improvements. In this review, the fundamental reaction mechanisms are comprehensively examined to understand the cause of persisting issues. The design improvements for both the anode and cathode of Ni-Fe batteries are discussed and summarized to identify the promising approach and provide insights on future research directions.

show abstract

Capacity and phase stability of metal-substituted α-Ni(OH)₂ nanosheets in aqueous Ni–Zn batteries

Abstract: Batteries that offer high specific energy and energy density coupled with improved safety and lower cost will affect applications ranging from electric vehicles, portable electronic devices, and grid-level energy storage....

Cited by 21 publications

References 96 publications

A Ten-Minute Synthesis of α-Ni(OH)2 Nanoflakes Assisted by Microwave on Flexible Stainless-Steel for Energy Storage Devices

A Ten-Minute Synthesis of α-Ni(OH)2 Nanoflakes Assisted by Microwave on Flexible Stainless-Steel for Energy Storage Devices

Alkaline Ni−Zn Rechargeable Batteries for Sustainable Energy Storage: Battery Components, Deterioration Mechanisms, and Impact of Additives

A Tale of Nickel-Iron Batteries: Its Resurgence in the Age of Modern Batteries

Contact Info

Product

Resources

About

Capacity and phase stability of metal-substituted α-Ni(OH)2 nanosheets in aqueous Ni–Zn batteries

Abstract: Batteries that offer high specific energy and energy density coupled with improved safety and lower cost will affect applications ranging from electric vehicles, portable electronic devices, and grid-level energy storage....

Cited by 21 publications

References 96 publications

A Ten-Minute Synthesis of α-Ni(OH)2 Nanoflakes Assisted by Microwave on Flexible Stainless-Steel for Energy Storage Devices

A Ten-Minute Synthesis of α-Ni(OH)2 Nanoflakes Assisted by Microwave on Flexible Stainless-Steel for Energy Storage Devices

Alkaline Ni−Zn Rechargeable Batteries for Sustainable Energy Storage: Battery Components, Deterioration Mechanisms, and Impact of Additives

A Tale of Nickel-Iron Batteries: Its Resurgence in the Age of Modern Batteries

Contact Info

Product

Resources

About

Capacity and phase stability of metal-substituted α-Ni(OH)₂ nanosheets in aqueous Ni–Zn batteries