Recent advances in rational design for high-performance potassium-ion batteries

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(13), P. 7202 - 7298

Published: Jan. 1, 2024

The growing global energy demand necessitates the development of renewable solutions to mitigate greenhouse gas emissions and air pollution. To efficiently utilize yet intermittent sources such as solar wind power, there is a critical need for large-scale storage systems (EES) with high electrochemical performance. While lithium-ion batteries (LIBs) have been successfully used EES, surging price, coupled limited supply crucial metals like lithium cobalt, raised concerns about future sustainability. In this context, potassium-ion (PIBs) emerged promising alternatives commercial LIBs. Leveraging low cost potassium resources, abundant natural reserves, similar chemical properties potassium, PIBs exhibit excellent ion transport kinetics in electrolytes. This review starts from fundamental principles structural regulation PIBs, offering comprehensive overview their current research status. It covers cathode materials, anode electrolytes, binders, separators, combining insights full battery performance, degradation mechanisms,

Language: Английский

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Biomass-derived carbon-sulfur hybrids boosting electrochemical kinetics to achieve high potassium storage performance

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 661, P. 598 - 605

Published: Feb. 1, 2024

Language: Английский

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Low‐Temperature Carbonized N/O/S‐Tri‐Doped Hard Carbon for Fast and Stable K‐Ions Storage

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 14(4)

Published: Dec. 2, 2023

Abstract Hard carbon stands out as one of the premier anodes for potassium‐ion batteries (PIBs), celebrated its cost‐effectiveness, natural abundance, and high yield. Yet, performance in PIBs remains subpar due to slow kinetics, a result large ionic radius K‐ions. Herein, unique lamellar N/O/S‐tri‐doped hard (NOSHC) has been developed at an impressively low pyrolysis temperature 500°C, showcasing distinct “slope‐dominated” characteristic. NOSHC delivers superior rate with dominant surface‐driven capacitive contribution (71.6% scan 0.5 mV s −1 ), maintaining robust reversible specific capacity 125 mAh g (half peak) even 5 A . Its stability is equally commendable, it sustains substantial 265 after 100 cycles 0.1 retains 210 post‐1000 1 Moreover, undergoes continuous activation via potassiation/depotassiation during cycling. Rich heteroatom doping introduces plethora defects vacancies, creating abundant active sites. The structure, featuring minimal pores, optimizes K‐ions transport by shortening diffusion length. This study unveils potential enhancing harnessing carbonization approach.

Language: Английский

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Hard carbon anode for lithium-, sodium-, and potassium-ion batteries: Advancement and future perspective

Cell Reports Physical Science, Journal Year: 2024, Volume and Issue: 5(3), P. 101851 - 101851

Published: Feb. 29, 2024

Due to its overall performance, hard carbon (HC) is a promising anode for rechargeable lithium-, sodium-, and potassium-ion batteries (LIBs, NIBs, KIBs). The microcrystalline structure morphology of HCs facilitates the alkali metal -ion uptake fast ion intercalation deintercalation throughout pores with low-potential properties. However, large-scale industrial application still lagging because first-cycle reversible capacity, which results in low initial Coulombic efficiency (ICE) voltage hysteresis. This review focuses on fundamental mechanism as metal-ion batteries, current issues being discussed. includes formation solid electrolyte interphase during first cycle ICE, safety concerns, improved performances, are vital practical applicability. state-of-the-art HC anodes discussed here recent literature. Furthermore, challenges corresponding effective strategies overcome difficulties related commercialization battery

Language: Английский

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Demystifying the Influence of Precursor Structure on S‐Doped Hard Carbon Anode: Taking Glucose, Carbon Dots, and Carbon Fibers as Examples

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)

Published: April 5, 2024

Abstract Heteroatom doping is a promising strategy for adjusting the microstructure of hard carbon (HC) to promote its electrochemical sodium storage performance. However, clarifying sites heteroatoms and effectively regulating their levels remain serious challenges. Herein, this work reveals impact three distinct structural precursors on S‐doped carbon: namely glucose (small organic molecule), dots (CDs, intermediate state between inorganic), graphitized fibers (inorganic materials). It demonstrated that HC derived from CDs possesses more significant number C─S bonds within framework, which attributed preferential bonding sulfur short polymeric chains abundant in unsaturated functional groups. And these cluster prominently surface CDs, enhancing affinity sulfur. Furthermore, as prominent feature extremely small size inherently distinguishes them other precursors, enabling serve fundamental units constructing various microstructures, such three‐dimensional (3D) structure. In summary, study explores influence different precursor structures heteroatom doping, with identified most useful precursor.

Language: Английский

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Pore structure and oxygen content design of amorphous carbon toward a durable anode for potassium/sodium‐ion batteries

Carbon Energy, Journal Year: 2024, Volume and Issue: unknown

Published: March 29, 2024

Abstract Both sodium‐ion batteries (SIBs) and potassium‐ion (PIBs) are considered as promising candidates in grid‐level energy storage devices. Unfortunately, the larger ionic radii of K + Na induce poor diffusion kinetics cycling stability carbon anode materials. Pore structure regulation is an ideal strategy to promote cyclic materials by facilitating electrolyte infiltration, increasing transport channels, alleviating volume change. However, traditional pore‐forming agent‐assisted methods considerably increase difficulty synthesis limit practical applications porous Herein, (Ca‐PC/Na‐PC/K‐PC) with different pore structures have been prepared gluconates precursors, amorphous structure, abundant micropores, oxygen‐doping active sites endow Ca‐PC excellent potassium sodium performance. For PIBs, capacitive contribution ratio 82% at 5.0 mV s −1 due introduction micropores high content, while a reversible capacity 121.4 mAh g can be reached 5 A after 2000 cycles. SIBs, stable 101.4 achieved 2 8000 cycles very low decay rate 0.65% for per cycle. This work may provide avenue application field.

Language: Английский

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Preparation of low-cost pitch-derived carbon-sulfur hybrids as anodes for potassium storage

Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120033 - 120033

Published: Jan. 1, 2025

Language: Английский

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Mixed-biomass engineering achieves multi-doped highly-disordered hierarchical flower-like hard carbon for advanced potassium-ion battery

Nano Energy, Journal Year: 2023, Volume and Issue: 117, P. 108913 - 108913

Published: Sept. 16, 2023

Language: Английский

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Salt-assisted synthesis of advanced carbon-based materials for energy-related applications

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(24), P. 10263 - 10303

Published: Jan. 1, 2023

This review provides a comprehensive overview of salt assisted synthesis carbon based materials on the role salts in systems. Meanwhile, application energy related fields is emphasized.

Language: Английский

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High-entropy NaCl-type metal chalcogenides as K-ion storage materials: role of the cocktail effect

Energy storage materials, Journal Year: 2023, Volume and Issue: 59, P. 102770 - 102770

Published: April 9, 2023

Language: Английский

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