Recent advances in understanding Li–CO<sub>2</sub> electrochemistry

Liu, Bao; Sun, Yinglun; Liu, Lingyang; Chen, Jiangtao; Yang, Bingjun; Xu, Shan; Yan, Xingbin

doi:10.1039/c8ee03417f

Cited by 263 publications

(226 citation statements)

References 166 publications

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“…[1][2][3][4][5] Rechargeable metalgas batteries are regarded as a potential candidate for future energy storage system, owing to their remarkable specific energy density in theory. [5][6][7][8][9] Generally speaking, they are assembled from a metal anode including Li, Mg, and Al, [5,7,10] and a gas cathode, such as O 2 , N 2 , CO 2 , SO 2 , CO, or their mixtures. [7][8][9][11][12][13][14] Except for the high energy storage capacity, metalgas batteries also have extra advantages.…”

Section: Introductionmentioning

confidence: 99%

Realizing Interfacial Electronic Interaction within ZnS Quantum Dots/N‐rGO Heterostructures for Efficient Li–CO₂ Batteries

Wang

Xie

You

et al. 2019

Advanced Energy Materials

118

111

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With high theoretical energy density, rechargeable metal–gas batteries (e.g., Li–CO2 battery) are considered as one of the most promising energy storage devices. However, their practical applications are hindered by the sluggish reaction kinetics and discharge product accumulation during battery cycling. Currently, the solutions focus on exploration of new catalysts while the thorough understanding of their underlying mechanisms is often ignored. Herein, the interfacial electronic interaction within rationally designed catalysts, ZnS quantum dots/nitrogen‐doped reduced graphene oxide (ZnS QDs/N‐rGO) heterostructures, and their effects on transformation and deposition of discharge products in the Li–CO2 battery are revealed. In this work, the interfacial interaction can both enhance the catalytic activities of ZnS QDs/N‐rGO heterostructures and induce the nucleation of discharge products to form a homogeneous Li2CO3/C film with excellent electronic transmission and high electrochemical activities. When the batteries cycle within a cutoff specific capacity of 1000 mAh g−1 at a current density of 400 mA g−1, the cycling performance of the Li–CO2 battery using a ZnS QDs/N‐rGO cathode is over 3 and 9 times than those coupled with a ZnS nanosheets (NST)/N‐rGO cathode and a N‐rGO cathode, respectively. This work provides comprehensive understandings on designing catalysts for Li–CO2 batteries as well as other rechargeable metal–gas batteries.

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Section: Introductionmentioning

confidence: 99%

Realizing Interfacial Electronic Interaction within ZnS Quantum Dots/N‐rGO Heterostructures for Efficient Li–CO₂ Batteries

Wang

Xie

You

et al. 2019

Advanced Energy Materials

118

111

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“…Nevertheless, the continuous deposition of dischargep roducts on the cathodes ide restricts LCOs for long cycles.A ss tudied by Takechi et al,m ixingo fC O 2 and O 2 systematically improves cell performance because CO 2 captures the superoxide anion radicals, thereby slowing down the Li 2 CO 3 deposition. [2] The theoretical energy density calculated for LCOs correspondingt ot he reactionb etweenL ia nd CO 2 ,n amely, 4 Li + 3CO 2 $2Li 2 CO 3 + C, is 1876 Wh kg À1 . [3] During the course of a battery cycle, Li 2 CO 3 is formed as ad ischarge product at ap otential of approximately 2.8 Va nd decomposedw ith charging.…”

Section: Introductionmentioning

confidence: 99%

“…[3] During the course of a battery cycle, Li 2 CO 3 is formed as ad ischarge product at ap otential of approximately 2.8 Va nd decomposedw ith charging. [4] However,t he continuous formation of Li 2 CO 3 restrains the reactionf rom occurring efficiently. High charge overpotential curbs the reaction further, and as ar esult, the electrolyte decomposes and causes poorer battery performance.…”

Section: Introductionmentioning

confidence: 99%

Curtailing the Overpotential of Li–CO₂ Batteries with Shape‐Controlled Cu₂O as Cathode: Effect of Illuminating the Cathode

et al. 2020

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“…More recently, Li‐CO 2 batteries have been attempted as new energy carriers to store renewable energy, in which Li 2 CO 3 is the main discharge product: 4Li + 3CO 2 + 4e − ↔ 2Li 2 CO 3 + C ( E 0 = 2.80 V vs Li/Li) . Unfortunately, this incipient prototype battery can only run about ten cycles.…”

Section: Introductionmentioning

confidence: 99%

A Co‐Doped MnO₂ Catalyst for Li‐CO₂ Batteries with Low Overpotential and Ultrahigh Cyclability

Sun

Guo

et al. 2019

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energy density and good cycle stability is believed as a promising strategy to solve this issue. For example, Li-CO 2 batteries which have been developed on the basis of Li-O 2 batteries have recently attracted attention. This battery system not only offers a high energy density for electrochemical energy storage but also alleviates the greenhouse effect by capturing CO 2 . [5] More recently, Li-CO 2 batteries have been attempted as new energy carriers to store renewable energy, in which Li 2 CO 3 is the main discharge product: 4Li + 3CO 2 + 4e − ↔ 2Li 2 CO 3 + C (E 0 = 2.80 V vs Li/Li). [6][7][8] Unfortunately, this incipient prototype battery can only run about ten cycles. The main bottlenecks are related to two aspects. First, the insert decomposition of Li 2 CO 3 discharge product is prone to adhere on the cathode surface, and then remarkably reduces the capacity. [8] Second, the aggregation of Li 2 CO 3 product will block the channels of gas diffusion and reduce the conductivity of electrode, resulting in a very high charge potential (>4.3 V). [6] In this regard, a cathode with a high surface area which could promote the reversibility of the Li 2 CO 3 discharge product is desirable to accelerate the practical applications of Li-CO 2 batteries. [9] Akin to the development of Li-O 2 batteries, there are two approaches to improve the electrochemical properties of the cathodes. On the one hand, the direct optimization of cathode structures has been regarded as a simple method to improve the properties of Li-CO 2 batteries. For instance, Zhou et al. [10,11] successfully examine graphene and carbon nanotubes (CNTs) as the cathodes, in which Li-CO 2 batteries operate for 20 cycles with an overpotential of 1.78 V at 50 mA g −1 under a limitative capacity of 1000 mA h g −1 . Dai et al. [12] design two graphenebased materials with defective structures for Li-CO 2 batteriesholey graphene and B,N-co-doped holey graphene, which show a cycling lifetime of over 200 cycles at 1 A g −1 , but suffer from a large overpotential (about 1.8 V at 1 A g −1 ). Liu et al. [13] first introduce CNTs which decorated with RuO 2 as cathode materials for Li-CO 2 batteries, which can deliver a high specific capacity together with a lower overpotential.On the other hand, the development of new catalysts is another effective method to enhance the electrochemical properties of Li-CO 2 batteries. For example, the cobalt-titanium-layered oxide-RuO 2 composite with a low over-potential of 0.6 V has Li-CO 2 batteries can not only capture CO 2 to solve the greenhouse effect but also serve as next-generation energy storage devices on the merits of economical, environmentally-friendly, and sustainable aspects. However, these batteries are suffering from two main drawbacks: high overpotential and poor cyclability, severely postponing the acceleration of their applications. Herein, a new Co-doped alpha-MnO 2 nanowire catalyst is prepared for rechargeable Li-CO 2 batteries, which exhibits a high capacity (8160 mA h g −1 at a current density of 100 mA g ...

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Recent advances in understanding Li–CO₂ electrochemistry

Abstract: This review presents a comprehensive understanding of recent advances in Li–CO2 electrochemistry and aims to develop advanced Li–CO2 batteries.

Cited by 263 publications

References 166 publications

Realizing Interfacial Electronic Interaction within ZnS Quantum Dots/N‐rGO Heterostructures for Efficient Li–CO₂ Batteries

Realizing Interfacial Electronic Interaction within ZnS Quantum Dots/N‐rGO Heterostructures for Efficient Li–CO₂ Batteries

Curtailing the Overpotential of Li–CO₂ Batteries with Shape‐Controlled Cu₂O as Cathode: Effect of Illuminating the Cathode

A Co‐Doped MnO₂ Catalyst for Li‐CO₂ Batteries with Low Overpotential and Ultrahigh Cyclability

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Recent advances in understanding Li–CO2 electrochemistry

Abstract: This review presents a comprehensive understanding of recent advances in Li–CO2 electrochemistry and aims to develop advanced Li–CO2 batteries.

Cited by 263 publications

References 166 publications

Realizing Interfacial Electronic Interaction within ZnS Quantum Dots/N‐rGO Heterostructures for Efficient Li–CO2 Batteries

Realizing Interfacial Electronic Interaction within ZnS Quantum Dots/N‐rGO Heterostructures for Efficient Li–CO2 Batteries

Curtailing the Overpotential of Li–CO2 Batteries with Shape‐Controlled Cu2O as Cathode: Effect of Illuminating the Cathode

A Co‐Doped MnO2 Catalyst for Li‐CO2 Batteries with Low Overpotential and Ultrahigh Cyclability

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Recent advances in understanding Li–CO₂ electrochemistry

Realizing Interfacial Electronic Interaction within ZnS Quantum Dots/N‐rGO Heterostructures for Efficient Li–CO₂ Batteries

Realizing Interfacial Electronic Interaction within ZnS Quantum Dots/N‐rGO Heterostructures for Efficient Li–CO₂ Batteries

Curtailing the Overpotential of Li–CO₂ Batteries with Shape‐Controlled Cu₂O as Cathode: Effect of Illuminating the Cathode

A Co‐Doped MnO₂ Catalyst for Li‐CO₂ Batteries with Low Overpotential and Ultrahigh Cyclability