Electrochemistry of metal-CO2 batteries: Opportunities and challenges

Fetrow, Christopher James; Carugati, Cameron; Zhou, Xiao‐Dong; Wei, Shuya

doi:10.1016/j.ensm.2021.12.035

Cited by 49 publications

(46 citation statements)

References 124 publications

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“…However, these batteries have challenges including, use of high active metal anodes, solid discharge products, and cost limits the practical environmentally friendly applications [ 8 , 9 , 10 ]. Zn-CO 2 provides a promising alternative due to its low toxicity, safety, cost, low active metal anodes, and is environmentally friendly [ 4 , 8 , 9 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Electrochemically Activated CNT Sheet as a Cathode for Zn-CO2 Batteries

Chen

Chitranshi

Shanov

et al. 2022

IJMS

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High demand for electrochemical storage devices is increasing the need for high-performance batteries. A Zn-CO2 battery offers a promising solution for CO2 reduction as well as energy storage applications. For this study, a Zn-CO2 battery was fabricated using a Carbon Nanotube (CNT) sheet as a cathode and a Zn plate as an anode. The electrochemical activation technique was used to increase the surface area of the CNT electrode by roughly 4.5 times. Copper (Cu) as a catalyst was then deposited onto the activated CNT electrode using electrodeposition method and different Cu loadings were investigated to optimize CO2 reduction. The final assembled Zn-CO2 battery has a 1.6 V output voltage at a current density of 0.063 mA/cm2, which is higher than most devices reported in the literature. This study demonstrates the importance of activation process which enabled more catalyst loading on the cathode resulted in additional active sites for electroreduction process. This paper presents the activated CNT sheet as a promising cathode material for Zn-CO2 batteries.

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Section: Introductionmentioning

confidence: 99%

Electrochemically Activated CNT Sheet as a Cathode for Zn-CO2 Batteries

Chen

Chitranshi

Shanov

et al. 2022

IJMS

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“…The gas chosen for the cathodic half-reaction can be oxygen or carbon dioxide. Carbon dioxide is commonly chosen due to better applicability to in-air batteries and due to interest in electrochemical carbon capture providing another application of the metal–CO 2 battery . Among the various types of metal–CO 2 systems demonstrated over the past decades, Li–CO 2 batteries have been most studied.…”

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confidence: 99%

“…Among the various types of metal–CO 2 systems demonstrated over the past decades, Li–CO 2 batteries have been most studied. However, metal–CO 2 batteries based on other metal anodes, such as Na, Mg, Al, etc., are of more interest for reducing the cost and improving safety . Specifically, a rechargeable metal–CO 2 battery based on aluminum metal anode is economically advantageous considering cost-effectiveness, manufacturability, and safety handling.…”

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confidence: 99%

“…Carbon dioxide is commonly chosen due to better applicability to in-air batteries and due to interest in electrochemical carbon capture providing another application of the metal−CO 2 battery. 4 Among the various types of metal−CO 2 systems demonstrated over the past decades, Li−CO 2 batteries have been most studied. However, metal−CO 2 batteries based on other metal anodes, such as Na, Mg, Al, etc., are of more interest for reducing the cost and improving safety.…”

mentioning

confidence: 99%

“…However, metal−CO 2 batteries based on other metal anodes, such as Na, Mg, Al, etc., are of more interest for reducing the cost and improving safety. 4 Specifically, a rechargeable metal−CO 2 battery based on aluminum metal anode is economically advantageous considering cost-effectiveness, manufacturability, and safety handling. Furthermore, aluminum (Al) metal involves a three-electron reaction and possesses low molecular weight, which can provide an excellent gravimetric and volumetric capacity of 2980 mAh/g and 8040 mAh/cm 3 , comparable to the metal with the highest capacity, lithium (3860 mAh/g and 2060 mAh/cm 3 ).…”

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confidence: 99%

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A Secondary Al–CO₂ Battery Enabled by Aluminum Iodide as a Homogeneous Redox Mediator

Fetrow

Carugati

et al. 2023

ACS Appl. Mater. Interfaces

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As an emerging energy storage concept, Al–CO2 batteries have not yet been demonstrated as a rechargeable system that can deliver a high discharge voltage and a high capacity. In this work, we present a homogeneous redox mediator to access a rechargeable Al–CO2 battery with an ultralow overpotential of 0.05 V. In addition, the resulting rechargeable Al–CO2 cell can maintain a high discharge voltage of 1.12 V and delivers a high capacity of 9394 mAh/gcarbon. Nuclear magnetic resonance (NMR) analysis indicates that the discharge product is aluminum oxalate which can facilitate the reversible operation of Al–CO2 batteries. The rechargeable Al–CO2 battery system demonstrated here holds great promise as a low-cost and high-energy alternative for future grid energy storage applications. Meanwhile, the Al–CO2 battery system could facilitate capture and concentration of atmospheric CO2, ultimately benefiting both the energy and environmental sectors of society.

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Synergy of Ni Nanoclusters and Single Atom Site: Size Effect on the Performance of Electrochemical CO₂ Reduction Reaction and Rechargeable Zn−CO₂ Batteries

Miao,

Qin,

Yang

et al. 2024

Adv Funct Materials

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The design of bifunctional electrocatalysts toward reduction reaction of carbon dioxide (ECO2RR) and oxygen evolution reaction (OER) in aqueous rechargeable Zn─CO2 batteries (ZABs) still poses a significant challenge. Herein, Ni clusters (Nix) of 0.5 and 0.8 nm in diameter coupled with single Ni site (Ni−N4−C), denoted as Ni−N4/Ni5 and Ni−N4/Ni8, respectively, are synthesized and the size effect of Ni nanoclusters are studied. Ni−N4/Ni5 exhibits an ≈100% Faradaic efficiency (FECO) toward ECO2RR for CO from −0.4 to −0.8 V versus the reversible hydrogen electrode, superior to that of Ni−N4−C (FECO = 55.0%) and Ni−N4/Ni8 (FECO = 80.0%). The OER performance of Ni−N4/Ni5 and Ni−N4/Ni8 are superior or comparable to that of commercial RuO2 but outperform that of Ni−N4−C. Theoretical calculation indicates that *COOH of ECO2RR intermediates bond synergistically with Nix clusters and Ni−N4−C single atom site, promoting the activation of CO2 and reducing the energy barrier of the potential determining step of ECO2RR. Such effect is strongly size‐dependent and larger Nix nanoclusters result in too strong binding of *COOH intermediates, impede the formation of *CO. As a bifunctional cathode electrocatalyst of rechargeable alkaline aqueous ZABs, Ni−N4/Ni5 exhibits a peak power density of 11.7 mW cm−2 and cycling durability over 1200 cycles and 420 h.

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Electrochemistry of metal-CO2 batteries: Opportunities and challenges

Cited by 49 publications

References 124 publications

Electrochemically Activated CNT Sheet as a Cathode for Zn-CO2 Batteries

Electrochemically Activated CNT Sheet as a Cathode for Zn-CO2 Batteries

A Secondary Al–CO₂ Battery Enabled by Aluminum Iodide as a Homogeneous Redox Mediator

Synergy of Ni Nanoclusters and Single Atom Site: Size Effect on the Performance of Electrochemical CO₂ Reduction Reaction and Rechargeable Zn−CO₂ Batteries

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Electrochemistry of metal-CO2 batteries: Opportunities and challenges

Cited by 49 publications

References 124 publications

Electrochemically Activated CNT Sheet as a Cathode for Zn-CO2 Batteries

Electrochemically Activated CNT Sheet as a Cathode for Zn-CO2 Batteries

A Secondary Al–CO2 Battery Enabled by Aluminum Iodide as a Homogeneous Redox Mediator

Synergy of Ni Nanoclusters and Single Atom Site: Size Effect on the Performance of Electrochemical CO2 Reduction Reaction and Rechargeable Zn−CO2 Batteries

Contact Info

Product

Resources

About

A Secondary Al–CO₂ Battery Enabled by Aluminum Iodide as a Homogeneous Redox Mediator

Synergy of Ni Nanoclusters and Single Atom Site: Size Effect on the Performance of Electrochemical CO₂ Reduction Reaction and Rechargeable Zn−CO₂ Batteries