A survey of hybrid energy devices based on supercapacitors

Green Energy & Environment, Journal Year: 2022, Volume and Issue: 8(4), P. 972 - 988

Published: Feb. 11, 2022

Developing multifunctional energy storage systems with high specific energy, power and long cycling life has been the one of most important research directions. Compared to batteries traditional capacitors, supercapacitors possess more balanced performance both cycle-life. Nevertheless, regular can only achieve without harvesting density is still not very compared batteries. Therefore, combining power, cycle-life even fast self-charging into cell a promising direction for future devices. The hybrid like asymmetric supercapacitors, batteries/supercapacitors devices have widely studied recently. Carbon based electrodes are common materials used in all kinds due their fabulous electrical mechanical properties. In this survey, progress using multiple effects working mechanisms briefly reviewed. And advantages disadvantages discussed. great application potential portable electronics, wearable implantable future.

Language: Английский

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Eliminating the Micropore Confinement Effect of Carbonaceous Electrodes for Promoting Zn‐Ion Storage Capability

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(39)

Published: Aug. 11, 2022

Zinc-ion capacitors (ZICs) are promising technology for large-scale energy storage by integrating the attributes of supercapacitors and zinc-ion batteries. Unfortunately, insufficient Zn2+ -storage active sites carbonaceous cathode materials mismatch pore sizes with charge carriers lead to unsatisfactory capability. Herein, new insights boosting capability activated nitrogen-doped hierarchical porous carbon (ANHPC-x) reported effectively eliminating micropore confinement effect synchronously elevating utilization sites. Therefore, best-performed ANHPC-2 delivers impressive electrochemical properties ZICs in terms excellent capacity (199.1 mAh g-1 ), density (155.2 Wh kg-1 durability (65 000 cycles). Systematic ex situ characterizations together quartz crystal microbalance Raman spectra measurements reveal that remarkable performance is assigned synergism , H+ SO42- co-adsorption mechanism reversible chemical adsorption. Furthermore, ANHPC-2-based quasi-solid-state ZIC demonstrates an ultralong lifespan up 100 cycles. This work not only provides a strategy improve but also sheds lights on charge-storage advanced electrode materials' design toward practical applications.

Language: Английский

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Anionic Co‐insertion Charge Storage in Dinitrobenzene Cathodes for High‐Performance Aqueous Zinc–Organic Batteries

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(35)

Published: July 4, 2022

Abstract Highly active and stable cathodes are critical for aqueous Zn–organic batteries with high capacity, fast redox kinetics, long life. We herein report para ‐, meta ortho ‐dinitrobenzene ( p m o ‐DB) containing two successive two‐electron processes, as cathode materials to boost the battery performance. Theoretical experimental studies reveal that nitro constitutional isomerism is key zincophilic activity kinetics. ‐DB hosted in carbon nanoflower harvests a capacity of 402 mAh g −1 superior stability up 25 000 cycles at 5 A , giving energy density 230 Wh kg . An anionic co‐insertion charge storage mechanism proposed, entailing two‐step (de)coordination Zn(CF 3 SO ) + oxygen. Besides, dinitrobenzene can be electrochemically optimized by side group regulation via implanting electron‐withdrawing motifs. This work opens new window design multielectron nitroaromatics batteries.

Language: Английский

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Electrode materials for supercapacitors: A comprehensive review of advancements and performance

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 84, P. 110698 - 110698

Published: Feb. 16, 2024

Language: Английский

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In situ nanoarchitecturing of conjugated polyamide network-derived carbon cathodes toward high energy-power Zn-ion capacitors

Journal of Materials Chemistry A, Journal Year: 2021, Volume and Issue: 10(2), P. 611 - 621

Published: Nov. 26, 2021

The solvent-guided shaping of conjugated polymides activates O/N Zn-storage sites on the robust carbon architecture, which facilitates reversible Zn electrosorption and durable charge tansfer toward high energy-power Zn-ion capacitors.

Language: Английский

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Engineering Pore Nanostructure of Carbon Cathodes for Zinc Ion Hybrid Supercapacitors

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(49)

Published: Oct. 21, 2022

Abstract Zinc ion hybrid supercapacitors (ZIHCs) with both high power density and energy have tremendous potential for storage applications such as electric vehicles renewable storage. However, the large radius of hydrated Zn 2+ ions hampers their efficient in micropores limited pore sizes, resulting gravimetric specific capacitance inferior rate capability ZIHCs. Therefore, it is critically important to understand what extent size influences pores sizes. Herein, porous carbon nanosheets different architectures are prepared using an ammonium chloride molten salt carbonization strategy. The influence on nanostructured divergent analyzed by electrochemical methods molecular dynamic simulation. Micropores smaller than 6.0 Å obstruct diffusion ions, while larger 7.5 exhibit a low barrier ions. Mesopores improve exposing electrochemically active sites enhancing

Language: Английский

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Discriminating Active BN Sites in Coralloidal B, N Dual‐Doped Carbon Nano‐Bundles for Boosted Zn‐Ion Storage Capability

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(12)

Published: Jan. 15, 2023

Abstract Dual doping of boron (B) and nitrogen (N) provides an effective strategy to tailor chemical properties electron distributions in the carbon plane, as well customize energy storage performance. Herein, a systematic theoretical experimental study on rationally constructing coralloidal B, N dual‐doped (BNC) nano‐bundles with abundant BN bonds for efficient Zn‐ion is presented. Compared single B or doped sample other sites, bond sites are found boost adsorption Zn ions enhance electronic conductivity, which efficiently contribute storage. As expected, optimized BNC display greatly improved electrochemical performance, manifested by high specific capacity 204 mAh g −1 at 0.2 A ultralong cycling stability 40 000 cycles, outperforming most state‐of‐the‐art cathodes. Moreover, distinguished density 178.7 Wh kg high‐power 17.5 kW achieved constructed BNC//Zn device. This work not only critical insight designing advanced materials but also deepens fundamental understanding governing mechanisms electrodes.

Language: Английский

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Lewis Pair Interaction Self‐Assembly of Carbon Superstructures Harvesting High‐Energy and Ultralong‐Life Zinc‐Ion Storage

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(48)

Published: Sept. 23, 2022

Abstract Tailor‐made nanoarchitecturing of highly zincophilic and stable carbon scaffolds is critical but still challenging for Zn‐ion storage with double‐high supercapacitive activity durability. Herein, a Lewis pair interaction‐guided self‐assembly strategy reported to design superstructures activating Zn‐storage sites. The acid (ferric chloride) base ( p ‐phenylenedimethanol) can interact form organic nanoparticle modules that self‐assemble into well‐defined constructed from nanotentacle‐building blocks via hydrogen‐bonding π−π stacking. As‐designed as aqueous capacitor cathodes empower the high accessibility build‐in sites efficient ion migration low‐energy hurdles. A charge‐storage mechanism, i.e., opposite charge‐carrier uptake coupled multielectron redox response, proposed, which entails alternate binding Zn 2+ /CF 3 SO − at active robust interactions between electronegative carbonyl/pyridine motifs O−Zn−N bonds. This unique electrochemistry contributes high‐rate survivability (100 g −1 ), high‐energy density (161.2 Wh kg cathode ultralong lifespan (400 000 cycles), superior state‐of‐the‐art devices in comprehensive performances. study sheds light on structural engineering carbon‐based materials toward advanced energy storage.

Language: Английский

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Proton‐Conductive Supramolecular Hydrogen‐Bonded Organic Superstructures for High‐Performance Zinc‐Organic Batteries

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(13)

Published: Jan. 25, 2023

Abstract With fast (de)coordination kinetics, the smallest and lightest proton stands out as most ideal charge carrier for aqueous Zn‐organic batteries (ZOBs). Hydrogen‐bonding networks with rapid Grotthuss conduction is particularly suitable organic cathodes, yet not reported. We report supramolecular self‐assembly of cyanuric acid 1,3,5‐triazine‐2,4,6‐triamine into superstructures through in‐plane H‐bonds out‐of‐plane π‐π interaction. The exhibit highly stable lock‐and‐key H‐bonding an ultralow activation energy protonation (0.09 eV vs. 0.25 zincification). Then, high‐kinetics H + coordination prior to Zn 2+ protophilic C=O sites via a two‐step nine‐electron reaction. assembled ZOBs show high‐rate capability (135 mAh g −1 at 150 A ), high density (267 Wh kg cathode ) ultra‐long life (50 000 cycles 10 becoming state‐of‐the‐art in comprehensive performances.

Language: Английский

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Heteroatom-doped hierarchical porous carbon for high performance flexible all-solid-state symmetric supercapacitors

Journal of Energy Storage, Journal Year: 2022, Volume and Issue: 49, P. 104122 - 104122

Published: Feb. 3, 2022

Language: Английский

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