Three‐dimensional Polymers as Organic Cathodes for Affordable and Sustainable Sodium/Potassium‐ion Batteries DOI
Motahareh Mohammadiroudbari, Li Shi, Jinghao Huang

et al.

Batteries & Supercaps, Journal Year: 2023, Volume and Issue: 7(2)

Published: Nov. 23, 2023

Abstract Redox‐active polymers (RAPs) are promising organic electrode materials for affordable and sustainable batteries due to their flexible chemical structures negligible solubility in the electrolyte. Developing high‐dimensional RAPs with porous crosslinkers can further improve stability redox capability by reducing enhancing reaction kinetics. This work reports two three‐dimensional (3D) as stable cathodes Na‐ion (NIBs) K‐ion (KIBs). Carbonyl functional groups incorporated into repeating units of polycondensation Tetrakis(4‐aminophenyl)methane different dianhydrides. The interconnected 3D extended conjugation undergo multi‐electron reactions exhibit high performance both NIBs KIBs terms long cycle life (up 8000 cycles) fast charging 2 A g −1 ). results demonstrate that developing is an effective strategy achieve high‐performance, affordable, KIBs.

Language: Английский

Recent advances in rational design for high-performance potassium-ion batteries DOI
Yifan Xu, Yichen Du,

Han Chen

et al.

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

Citations

141
Rational Regulation of High-Voltage Stability in Potassium Layered Oxide Cathodes DOI
Lichen Wu, Hongwei Fu, Lyu Wang

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(20), P. 13415 - 13427

Published: May 10, 2024

Layered oxide cathode materials may undergo irreversible oxygen loss and severe phase transitions during high voltage cycling be susceptible to transition metal dissolution, adversely affecting their electrochemical performance. Here, address these challenges, we propose synergistic doping of nonmetallic elements in situ diffusion as potential solution strategies. Among them, the distribution element fluorine within material can regulated by boron, thereby suppressing manganese dissolution through surface enrichment fluorine. Furthermore, from into bulk after charging reduces energy barrier potassium ion while effectively inhibiting under voltage. The modified K0.5Mn0.83Mg0.1Ti0.05B0.02F0.1O1.9 layered exhibits a capacity 147 mAh g–1 at 50 mA long cycle life 2200 cycles 500 g–1. This work demonstrates efficacy provides valuable insights for optimizing rechargeable battery materials.

Language: Английский

Citations

36
Intermolecular Interaction Mediated Potassium Ion Intercalation Chemistry in Ether‐Based Electrolyte for Potassium‐Ion Batteries DOI

Hongliang Xie,

Honghong Liang,

Pushpendra Kumar

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(28)

Published: June 4, 2024

Abstract Electrolyte design is indeed a highly effective strategy to improve battery performance. However, identifying the intermolecular interaction in electrolyte solvation structure rarely reported potassium‐ion batteries. Herein, it discovered that solvent‐solvent can be formed when introducing cyclopentylmethyl ether (CPME) solvent into commonly used 1,2‐dimethoxyethane (DME)‐based electrolytes. Such not only analyzed by 2D 1 H‐ H correlation spectroscopy for first time but also found weaken K + ‐DME significantly, consequently enabling reversible (de‐)intercalation within graphite. By employing this without using any fluorine‐based solvent, new fluorine‐free and low‐concentration ether‐based designed, which compatible with graphite facilitates of high‐energy‐density safe potassium ion sulfur A novel molecular interfacial model further presented analyze behaviors ‐solvent‐anion complexes on electrode surface are affected interactions, elucidating reasons behind superior compatibility performance at scale. This work sheds some light critical role solvent–solvent interactions batteries provides valuable insights engineering enhancing electrolytes

Language: Английский

Citations

25
In Situ Construction of Uniform and Elastic Solid–Electrolyte Interphase for High‐Performance Potassium Batteries DOI

Mingyuan Gu,

Hongwei Fu, Apparao M. Rao

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(46)

Published: June 22, 2024

Abstract Solid electrolyte interphase (SEI) plays a crucial role in battery. This study leverages the assistance of weak interactions to construct uniform and elastic SEI for potassium batteries. The caffeic acid phenethyl ester (CAPE) is introduced into electrolyte, between CAPE anodes enable contact electrons preferentially during cycling. unsaturated carbon═carbon double bonds molecules receive undergo polymerization reactions on anode surface, forming SEI. Such exhibits good uniformity excellent mechanical elasticity, enabling adapt well huge volume changes maintain structural stability As result, graphite over 1500 stable cycles at current density 100 mA g −1 . metal full battery based Prussian blue (PB) cathode 5700 times 1000 In addition, pouch potassium‐ion PB also shows electrochemical performance, which operates stably 600 without significant attenuation capacity 200 , showing potential practical value.

Language: Английский

Citations

20
Defective MoSSe with local-expanded structure for high-rate potassium ion battery DOI
Wenting Feng,

Xinru Wei,

Fengliang Cao

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 65, P. 103186 - 103186

Published: Jan. 21, 2024

Language: Английский

Citations

18
Recent advances in potassium metal batteries: electrodes, interfaces and electrolytes DOI Creative Commons
Jianlu Sun, Yichen Du, Yijiang Liu

et al.

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review explores the latest advancements in potassium metal batteries, including electrode design, interface engineering, and electrolyte optimization to suppress dendrite formation enhance cycling stability.

Language: Английский

Citations

14
Unraveling the Nucleation and Growth Mechanism of Potassium Metal on 3D Skeletons for Dendrite-Free Potassium Metal Batteries DOI
Zhihao Chen, Lifeng Wang, Jiale Zheng

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(11), P. 8496 - 8510

Published: March 8, 2024

Designing three-dimensional (3D) porous carbonaceous skeletons for K metal is one of the most promising strategies to inhibit dendrite growth and enhance cycle life potassium batteries. However, nucleation mechanism on 3D remains ambiguous, rational design suitable hosts still presents a significant challenge. In this study, relationships between binding energy toward are systematically studied. It found that high can effectively decrease barrier, reduce volume, prevent growth, which applied guide current collectors. Density functional theory calculations show P-doped carbon (P-carbon) exhibits highest compared other elements (e.g., N, O). As result, K@P-PMCFs (P-binding multichannel nanofibers) symmetric cell demonstrates an excellent stability 2100 h with overpotential 85 mV in carbonate electrolytes. Similarly, perylene-3,4,9,10-tetracarboxylic dianhydride || achieves ultralong (85% capacity retention after 1000 cycles). This work provides valuable reference

Language: Английский

Citations

14
Enabling High‐Performance Potassium‐Ion Batteries by Manipulating Interfacial Chemistry DOI
Haodong Zhang, Huwei Wang, Wei Li

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(21)

Published: Jan. 30, 2024

Abstract As a promising candidate for the flame‐retardant electrolyte, triethyl phosphate (TEP)/potassium bis(fluorosulfonyl)amide (KFSI)‐based electrolyte has drawn much attention in K‐ion battery community. Although TEP/KFSI formula at moderate main salt concentration (normally, <3 m ) enables compatibility of reactive K metal anode, long‐standing oxidative instability KFSI remains unsolved. Here, an additive strategy is reported to address high‐voltage issue and generalize it other KFSI‐based electrolytes. The addition potassium nitrate changes surface charge distribution effectively suppresses decomposition toward cathode. nitrate‐containing superior stability 4.3 V‐class battery, as evidenced by its 80% capacity retention over 2000 cycles (≈6 months) 1 C rate. Moreover, long‐cycling graphite‐based full cell with Prussian Blue cathode demonstrated.

Language: Английский

Citations

13
Multiphase Riveting Structure for High Power and Long Lifespan Potassium‐Ion Batteries DOI

Z. H. Liu,

Xuan‐Wen Gao,

Jianjia Mu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(26)

Published: Feb. 26, 2024

Abstract The development of potassium‐ion batteries (KIBs) relies on the exploration stable layer‐structured oxide cathode materials and a comprehensive understanding ion storage diffusion behaviors. A multiphase riveting‐structured O3/P2/P3‐Na 0.9 [Ni 0.3 Mn 0.55 Cu 0.1 Ti 0.05 ]O 2 (Tri‐NMCT) is employed as material for KIBs. It demonstrates an initial discharge specific capacity 108 mA g −1 at current density 15 in voltage range 1.5–4 V. Excellent cyclic stability exhibited well with high 83% retention after 600 cycles higher 300 . Based in‐situ XRD, it reveals that P2 phase offers more triangular prism site compared to O3 phase. This inhibits undesired transition from P3 during discharge, thereby ensuring long‐term performance. Furthermore, Density state (DOS) calculations migration barrier analyses indicate preferential K + ions due lower Fermi level. observation elucidates structural preservation embedding. Overall, this work sheds light Tri‐NMCT promising advanced

Language: Английский

Citations

13
Strategies to enable microsized alloy anodes for high-energy and long-life alkali-ion batteries DOI Creative Commons
Amine Daali, Rachid Amine,

Wilkistar Otieno

et al.

Industrial Chemistry and Materials, Journal Year: 2024, Volume and Issue: 2(4), P. 489 - 513

Published: Jan. 1, 2024

In this review, challenges and strategies to enable the use of micro-sized alloy anodes for alkali-ion batteries with high energy density long cycle life are explored.

Language: Английский

Citations

12