Electrode–Electrolyte Interactions in an Aqueous Aluminum–Carbon Rechargeable Battery System

Smajic, Jasmin; Alazmi, Amira; Wehbe, Nimer; Costa, Pedro M. F. J.

doi:10.3390/nano11123235

Cited by 9 publications

(2 citation statements)

References 48 publications

(63 reference statements)

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“…Mechanistically, the electrolyte's concentration affects the ionic charge transfer through the IL-SEI by partially breaking this ex situ interface during the cell's operation, thereby forming a new (in situ) SEI. In agreement with Zhao et al and others, the optimal Al(OTF) 3 concentration for this system is 2 M. 19,20 Meanwhile, other teams have continued to use the IL-SEI approach to shed light on a number of different questions. For instance, working with an OTF-based electrolyte, Li et al found that the anion OTFparticipates in the Al solvation structure as [Al(H 2 O) 4 (OTF)] 2+ .…”

Section: Current Statussupporting

confidence: 81%

Perspective—Are Rechargeable Aluminum Batteries with Aqueous Electrolytes Possible?

Smajic

Costa

2022

J. Electrochem. Soc.

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Aqueous aluminum (Al) batteries are promising as a low cost, high energy density, and safe energy storage solution. However, significant challenges persist in using Al anodes with water-based electrolytes in acidic regimes. Several approaches have been put forward to resolve these obstacles, but there is an ongoing debate on their viability. Here, we outline the current understanding of the best-performing systems and suggest future research directions.

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Section: Current Statussupporting

confidence: 81%

Perspective—Are Rechargeable Aluminum Batteries with Aqueous Electrolytes Possible?

Smajic

Costa

2022

J. Electrochem. Soc.

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“…In addition, different processing methods can obtain graphite-based materials with different properties. For example, pretreated graphite can produce flake graphite foam electrodes [86], supercritical drying method can obtain mesoporous reduced graphene oxide powder [88], using freezedrying synthesized can reduced graphene oxide [89]. Oxygen group functional groups on graphene sheets can improve wettability and thus increase charge storage, such as oxygen-rich layered porous graphene electrode materials with high specific surface areas [87].…”

Section: Carbonaceous Materialsmentioning

confidence: 99%

Recent progress in aqueous aluminum-ion batteries

Wang,

Tang,

Deng

et al. 2024

Nanotechnology

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Aqueous aluminum−ion batteries have many advantages such as their safety, environmental friendliness, low cost, high reserves and the high theoretical specific capacity of aluminum. So aqueous aluminum−ion batteries are potential substitute for lithium−ion batteries. In this paper, the current research status and development trends of cathode and anode materials and electrolytes for aqueous aluminum−ion batteries are described. Aiming at the problem of passivation, corrosion and hydrogen evolution reaction of aluminum anode and dissolution and irreversible change of cathode after cycling in aqueous aluminum−ion batteries. Solutions of different research routes such as ASEI (artificial solid electrolyte interphase), alloying, amorphization, elemental doping, electrolyte regulation, etc. and different transformation mechanisms of anode and cathode materials during cycling have been summarized. Moreover, it looks forward to the possible research directions of aqueous aluminum−ion batteries in the future. We hope that this review can provide some insights and support for the design of more suitable electrode materials and electrolytes for aqueous aluminum−ion batteries.

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Aqueous Aluminum‐Carbon Rechargeable Batteries

Smajic

Hasanov

Alazmi

et al. 2021

Adv Materials Inter

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Carbon cathodes have shown excellent electrochemical behavior in aluminum batteries based on non‐aqueous electrolytes. By contrast, their use in Al systems operating in a salt‐water medium is plagued by poor and unstable performance. Herein, it is sustained that a successful C cathode for rechargeable aqueous Al batteries requires surface customization to enable hydrophilicity and grafting of charged Al molecules. Employing a freeze‐dried reduced graphene oxide (rGO) as the active electrode material, an aqueous Al‐C battery is assembled with a high energy density (136 Wh kg−1 per cathode mass) and one of the best capacity retentions reported (≈60% across a range of current densities and constant Coulombic efficiencies close to unit). Furthermore, the rGO cathode more than doubles the benchmark for life cycles (to ≈200 cycles) and can be charged rapidly (<5 min). To explain this response, a charge storage mechanism is proposed wherein the [Al(H2O)6]3+ ions do not get desolvated when inserted into the cathode. The guest Al ions (surface adsorbed or intercalated) act as proton donors and may get anchored on the oxygen moieties of the rGO, further promoting the formation of an electrochemical double layer. A mixed charge‐storage regime follows that stabilizes the carbon cathode and enables an unprecedented response.

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Electrode–Electrolyte Interactions in an Aqueous Aluminum–Carbon Rechargeable Battery System

Cited by 9 publications

References 48 publications

Perspective—Are Rechargeable Aluminum Batteries with Aqueous Electrolytes Possible?

Perspective—Are Rechargeable Aluminum Batteries with Aqueous Electrolytes Possible?

Recent progress in aqueous aluminum-ion batteries

Aqueous Aluminum‐Carbon Rechargeable Batteries

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