Recent Advances in Alkali Metal‐Ion Hybrid Supercapacitors

Xia, Lishuang; Tang, Bin; Wei, Jinping; Zhou, Zhen

doi:10.1002/batt.202000332

Cited by 33 publications

(21 citation statements)

References 136 publications

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“…[ 6 ] Numerous novel types of sacrificial matters, such as Li 6 CoO 4 , Li 3 N, and Li 2 S, have been reported to improve the performance of MHCs. [ 128,174 ] Similar to the role of sacrificial organic lithium salt, functional organic sodium salts can be used to compensate for the initial irreversible ion consumption. A voltage‐induced in situ presodiation method was proposed to supply a sufficient sodium source to the cathode via an organic sodium salt (Na 2 C 6 O 6 ).…”

Section: Prelithiation/presodiation/prepotassiation Methodsmentioning

confidence: 99%

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The Advance and Perspective on Electrode Materials for Metal–Ion Hybrid Capacitors

Guo

Chen

2021

Adv Energy and Sustain Res

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High power density supercapacitors that use reversible ion adsorption to store charge at the electrode/electrolyte interface remain functional after hundreds of charge/discharge cycles. [1][2][3] A series of carbonaceous materials such as activated carbon, graphite, fullerenes, graphene, and mesoporous carbon have been proposed to boost the performance of supercapacitors. [4,5] Among them, activated carbons with large specific surface area (%3000 m 2 g À1 ) are favored in supercapacitor designs by forming an electric double layer, thus ensuring the long-term stability. [6] Nevertheless, they offer a relatively low energy density. The capacity of supercapacitors is far from meeting the requirements for powering a variety of ubiquitous portable and flexible electronic devices. Limited gravimetric and volumetric energy densities remain serious issues for the commercialization of supercapacitor. Apart from supercapacitor, battery is another important component of energy storage system. Compared with the performance of supercapacitor, battery shows a low power density because the chemical reactions occur within the electrode material. Considering these limitations, research focus has been desperately put on the metal-ion hybrid capacitor (MHC) combining the merits of battery and supercapacitor. The setup of MHC is composed of capacitor-type and battery-type electrode materials. [41][42][43][44][45] A large part of the advantage of MHCs is due to their higher energy density than supercapacitors and higher power density than batteries without sacrificing cycling stability. [46][47][48][49][50] Using the concept of MHC is to both store and deliver large amounts of energy in devices. Therefore, MHCs have been extensively investigated. However, the high reactivity of alkali metals and the rising cost of scarce lithium resources have driven us to develop multivalent MHCs. Multivalent MHCs possess the merits of abundant resources, high safety, and high energy density owing to their multielectron energy storage process. Few studies have focused on describing a comprehensive review of MHCs, including Li, Na, K, Zn, Mg, Ca, and Al ion capacitors. Therefore, this review is concerned with research activities on electrode materials for MHC and provides a perspective on the future development of electrochemical energy storage technology.

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Section: Prelithiation/presodiation/prepotassiation Methodsmentioning

confidence: 99%

“…[ 126,127 ] Some other metal sulfides can be assembled because the MHC electrodes are MoS 2 and MnS. [ 121, 128–130 ]…”

Section: Electrode Materials For Mhcsmentioning

confidence: 99%

The Advance and Perspective on Electrode Materials for Metal–Ion Hybrid Capacitors

Guo

Chen

2021

Adv Energy and Sustain Res

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“…Potassium-ion hybrid capacitor (PIHC), as an emerging new energy storage device, has recently been proposed to bridge the gap between high power density of potassiumion batteries (PIBs) and high energy density of supercapacitor (SC) by integrating complementary merits of the two systems [1][2][3][4]. Unfortunately, the potassium-ion storage anode usually suffers from the issues of dramatic volume variation and fast capacity fading because of the intrinsic large-sized K + , which causes slow redox reaction kinetics behavior upon K + intercalation/deintercalation process [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A General Self-Sacrifice Template Strategy to 3D Heteroatom-Doped Macroporous Carbon for High-Performance Potassium-Ion Hybrid Capacitors

Zhong

et al. 2021

Nano-Micro Lett.

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Potassium-ion hybrid capacitors (PIHCs) tactfully combining capacitor-type cathode with battery-type anode have recently attracted increasing attentions due to their advantages of decent energy density, high power density, and low cost; the mismatches of capacity and kinetics between capacitor-type cathode and battery-type anode in PIHCs yet hinder their overall performance output. Herein, based on prediction of density functional theory calculations, we find Se/N co-doped porous carbon is a promising candidate for K+ storage and thus develop a simple and universal self-sacrifice template method to fabricate Se and N co-doped three-dimensional (3D) macroporous carbon (Se/N-3DMpC), which features favorable properties of connective hierarchical pores, expanded interlayer structure, and rich activity site for boosting pseudocapacitive activity and kinetics toward K+ storage anode and enhancing capacitance performance for the reversible anion adsorption/desorption cathode. As expected, the as-assembled PIHCs full cell with a working voltage as high as 4.0 V delivers a high energy density of 186 Wh kg−1 and a power output of 8100 W kg−1 as well as excellent long service life. The proof-of-concept PIHCs with excellent performance open a new avenue for the development and application of high-performance hybrid capacitors.

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“…To this end, M-ion hybrid capacitors (MICs) comprising a capacitor-type cathode and a battery-type anode have been proposed, which can realize higher power density and longer cycling performance than MIBs and a greater energy density than EDLCs. ,− The scarcity and uneven geographical distribution of lithium sources and the cost-inefficiency of this metal have hampered the sustainable development of lithium-ion capacitors (LICs), , which has led researchers to explore alternative hybrid capacitors with various charge carriers. Sodium and potassium are more abundant than lithium in the Earth’s crust, while their redox potentials and intercalation chemistry are similar to those of lithium .…”

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confidence: 99%

“…Consequently, research on sodium-ion capacitors (SICs) and potassium-ion capacitors (PICs) has rapidly proliferated, as reflected in the increasing number of publications on SICs and PICs (SICs/PICs) in recent years (Figure a). However, the electrochemical performance of SICs/PICs is still plagued by the kinetic imbalance between cathode and anode because the rate of insertion/extraction of alkali ions into/out of the anode is always significantly slower than the adsorption/desorption rate of anions on the cathode surface. , Therefore, research attention has been shifted to seek suitable anode materials for SICs/PICs. To date, a variety of transition-metal-based anodes have been investigated for SICs/PICs, such as conversion- (MoS 2 , MoSe 2 , and MeSe x ), − alloy- (Si, Sb, and Ge), and mixed conversion/alloy-type materials (ZnS and SnS), , as their multi-electron reactions enable them to deliver a high capacity.…”

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Carbonaceous Anode Materials for Non-aqueous Sodium- and Potassium-Ion Hybrid Capacitors

et al. 2021

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Sodium- and potassium-ion (Na-/K-ion) hybrid capacitors are promising electrochemical energy storage systems that are more cost-effective than corresponding lithium-based alternatives. Their hybrid configuration integrates a battery-type anode and a capacitor-type cathode and affords high energy density, high power density, and good cycling stability. However, the primary issue encountered in Na-/K-ion hybrid capacitors is a lack of reliable anodes because of the sluggish reaction kinetics of large Na-/K-ions. In recent years, significant advancements have been achieved in carbonaceous anodes because of their high Na-/K-ion storage feasibility, natural abundance, low cost, and non-toxicity. This review encompasses the fundamental electrochemical principles of Na-/K-ion hybrid capacitors and provides insights into the intimate structure–performance relationship of carbonaceous anodes. The existing challenges and alternative strategies for improving the electrochemical performance of the carbonaceous anodes are emphasized. Finally, future prospects and possible directions for further improving carbonaceous anodes for Na-/K-ion hybrid capacitors are presented.

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Recent Advances in Alkali Metal‐Ion Hybrid Supercapacitors

Cited by 33 publications

References 136 publications

The Advance and Perspective on Electrode Materials for Metal–Ion Hybrid Capacitors

The Advance and Perspective on Electrode Materials for Metal–Ion Hybrid Capacitors

A General Self-Sacrifice Template Strategy to 3D Heteroatom-Doped Macroporous Carbon for High-Performance Potassium-Ion Hybrid Capacitors

Carbonaceous Anode Materials for Non-aqueous Sodium- and Potassium-Ion Hybrid Capacitors

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