Challenges in Developing Electrodes, Electrolytes, and Diagnostics Tools to Understand and Advance Sodium‐Ion Batteries

Xu, Gui‐Liang; Amine, Rachid; Abouimrane, Ali; Che, Haiying; Dahbi, Mouad; Ma, Zi-Feng; Saadoune, Ismae͏̈l; Alami, Jones; Mattis, Wenjuan Liu; Pan, Feng; Chen, Zonghai; Amine, Khalil

doi:10.1002/aenm.201702403

Cited by 248 publications

(153 citation statements)

References 516 publications

(388 reference statements)

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“…Owing to the abundance resource of sodium on the earth, sodium‐ion batteries receive continuous attention for large‐scale energy storage applications . As we know, Na‐ions (1.02 Å) have the larger ionic radius than Li‐ions (0.76 Å).…”

Section: Nb2o5 Electrodesmentioning

confidence: 99%

Niobium‐Based Oxides Toward Advanced Electrochemical Energy Storage: Recent Advances and Challenges

Deng

Zhu

et al. 2019

Small

152

115

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Niobium‐based oxides including Nb2O5, TiNbxO2+2.5x compounds, M–Nb–O (M = Cr, Ga, Fe, Zr, Mg, etc.) family, etc., as the unique structural merit (e.g., quasi‐2D network for Li‐ion incorporation, open and stable Wadsley– Roth shear crystal structure), are of great interest for applications in energy storage systems such as Li/Na‐ion batteries and hybrid supercapacitors. Most of these Nb‐based oxides show high operating voltage (>1.0 V vs Li+/Li) that can suppress the formation of solid electrolyte interface film and lithium dendrites, ensuring the safety of working batteries. Outstanding rate capability is impressive, which can be derived from their fast intercalation pseudocapacitive kinetics. However, the intrinsic poor electrical conductivity hinders their energy storage applications. Various strategies including structure optimization, surface engineering, and carbon modification are effectively used to overcome the issues. This review provides a comprehensive summary on the latest progress of Nb‐based oxides for advanced electrochemical energy storage applications. Major impactful work is outlined, promising research directions, and various performance‐optimizing strategies, as well as the energy storage mechanisms investigated by combining theoretical calculations and various electrochemical characterization techniques. In addition, challenges and perspectives for future research and commercial applications are also presented.

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Section: Nb2o5 Electrodesmentioning

confidence: 99%

Niobium‐Based Oxides Toward Advanced Electrochemical Energy Storage: Recent Advances and Challenges

Deng

Zhu

et al. 2019

Small

152

115

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“…The electrolytes of NICs could be organic electrolyte, aqueous electrolyte, or gel polymer electrolyte. Organic electrolytes have a wide and stable electrochemical voltage window (up to 4.5 V), but they are usually volatile and flammable . Ionic liquids (ILs) are nonvolatile, highly stable candidates for NIC electrolytes, but the ion mobility in ionic liquid is usually sluggish due to the higher viscosity .…”

Section: Mechanism and Configuration Of Sodium‐ion Capacitorsmentioning

confidence: 99%

“…However, the development of NIBs is relatively slow compared to the successful commercial application of LIBs. In recent years, NIBs have been intensively studied as a kind of promising alternative energy storage devices for LIBs . The research on sodium‐ion hybrid capacitors (or sodium‐ion capacitors, NICs or SICs) began in 2012.…”

Section: Introductionmentioning

confidence: 99%

Advanced Materials for Sodium‐Ion Capacitors with Superior Energy–Power Properties: Progress and Perspectives

Zhang

et al. 2019

Small

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10. 1002/smll.201902843. Developing electrochemical energy storage devices with high energy-power densities, long cycling life, as well as low cost is of great significance. Sodium-ion capacitors (NICs), with Na + as carriers, are composed of a high capacity battery-type electrode and a high rate capacitive electrode. However, unlike their lithium-ion analogues, the research on NICs is still in its infancy. Rational material designs still need to be developed to meet the increasing requirements for NICs with superior energy-power performance and low cost. In the past few years, various materials have been explored to develop NICs with the merits of superior electrochemical performance, low cost, good stability, and environmental friendliness. Here, the material design strategies for sodium-ion capacitors are summarized, with focus on cathode materials, anode materials, and electrolytes. The challenges and opportunities ahead for the future research on materials for NICs are also proposed. www.advancedsciencenews.com www.small-journal.com to LICs, NICs are still in their infancy stage with many difficulties for their practical application. [23] For example, many battery-type electrode materials for lithium ion storage cannot meet the requirements of NIC devices due to the large size of Na + ions. In addition, due to the redox potential of Na/Na + is 0.3 V higher than that of Li/Li + , the working voltage ranges of NICs are expected to be a little narrower than LICs, which may influence the energy densities of NICs. Moreover, the electrolyte should provide a rapid migration process of Na + ions. Therefore, the rational material design will play crucial roles in the electrochemical performance improvement of NICs.So far, there are few papers which summarize the recent progress in NIC research area. In particular, the materials used in NICs, including anode, cathode, and electrolyte, have not been systematically reviewed. In this article, we focus on the latest advances in the cathode materials, anode materials, and electrolytes for NICs. First, we review the energy storage mechanism and demonstrate the configurations of NICs; then, we summarize the recent progress on electrode materials, including anode materials, cathode materials, as well as different electrolytes for NICs; finally, the challenges and future prospects for NIC research are proposed.

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“…One critical challenge facing the practical deployment of SIBs is the lack of efficient anode materials. Poor electrochemical activity and unstable cyclic performance are often identified as two challenges for sodium anode materials . The cause of them lies in the larger and more heavy‐weighted nature of the Na + ion than Li + .…”

Section: Introductionmentioning

confidence: 99%

Dual‐Doped Hematite Nanorod Arrays on Carbon Cloth as a Robust and Flexible Sodium Anode

Sun

Wang

et al. 2020

Adv Funct Materials

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Rechargeable batteries with flexibility can find tremendous applications in wearable and bendable electronics. One central mission for the advancement of such high‐performance batteries is the exploration of flexible anodes with electrochemical and mechanical robustness. Herein reported is a robust and flexible sodium‐ion anode based on self‐supported hematite nanoarray grown on carbon cloth. The ammonia treatment that results in dual doping of both nitrogen and low‐valent iron renders surface reactivity and electric conductivity to the material. The dual‐doped hematite arrays afford a robust activity for sodium storage, exhibiting reversible capacities of 895 and 382 mAh g−1 at current rates of 0.1 and 5 A g−1, respectively, or 615 and 356 mAh g−1 by removing the contribution of the substrate. They also sustain 85% of the initial capacity upon 200 cycles at 0.2 A g−1. To demonstrate the flexibility, full cells composed of a hematite array anode and Na3V2(PO4)3/C cathode are assembled. The cell is capable of affording an energy density of 201 Wh kg−1 and sustaining repeated bending without performance decay, demonstrating a significant potential in practical application.

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Challenges in Developing Electrodes, Electrolytes, and Diagnostics Tools to Understand and Advance Sodium‐Ion Batteries

Cited by 248 publications

References 516 publications

Niobium‐Based Oxides Toward Advanced Electrochemical Energy Storage: Recent Advances and Challenges

Niobium‐Based Oxides Toward Advanced Electrochemical Energy Storage: Recent Advances and Challenges

Advanced Materials for Sodium‐Ion Capacitors with Superior Energy–Power Properties: Progress and Perspectives

Dual‐Doped Hematite Nanorod Arrays on Carbon Cloth as a Robust and Flexible Sodium Anode

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