Energy storage materials, Journal Year: 2024, Volume and Issue: 67, P. 103285 - 103285
Published: Feb. 20, 2024
Language: Английский
Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(3), P. 1255 - 1265
Published: Jan. 1, 2024
Hydrogen-bond regulating organic/aqueous hybrid electrolyte with immobilized H 2 O provides new insights into realizing high-voltage aqueous batteries without compromising safety.
Language: Английский
Citations
49
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
35
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(29)
Published: May 6, 2024
Abstract Current potassium‐ion batteries (PIBs) are limited in safety and lifetime owing to the lack of suitable electrolyte solutions. To address these issues, herein, we report an innovative non‐flammable design strategy that leverages optimal moderate solvation phosphate‐based solvent which strikes a balance between capability salt dissociation ability, leading superior electrochemical performance. The formulated simultaneously exhibits advantages low concentration (only 0.6 M), viscosity, high ionic conductivity, oxidative stability, safety. Our also promotes formation self‐limiting inorganic‐rich interphases at anode surface, alongside robust cathode‐electrolyte interphase on iron‐based Prussian blue analogues, mitigating electrode/electrolyte side reactions preventing Fe dissolution. Notably, PIBs employing our exhibit exceptional durability, with 80 % capacity retention after 2,000 cycles high‐voltage 4.2 V coin cell. Impressively, larger scale pouch cell, it maintains over 81 its initial 1,400 1 C‐rate average Coulombic efficiency 99.6 %. This work represents significant advancement toward realization safe, sustainable, high‐performance PIBs.
Language: Английский
Citations
33
National Science Review, Journal Year: 2024, Volume and Issue: 11(11)
Published: Oct. 15, 2024
ABSTRACT The poor oxidation resistance of traditional electrolytes has hampered the development high-voltage potassium-ion battery technology. Here, we present a cosolvent electrolyte design strategy to overcome limitations chemistries. breaks dissolution limitation salt through ion–dipole interactions, significantly enlarging anion-rich solvation clusters, as verified by insitu synchrotron-based wide-angle X-ray scattering experiments. Furthermore, large clusters also facilitate formation an effective electrode–electrolyte interphase, thereby enhancing compatibility with electrodes. enables K||Prussian blue cells (2–4.5 V) operate for >700 cycles capacity retention 91.9%. Our paves new avenues batteries and beyond.
Language: Английский
Citations
32
Nanoscale, Journal Year: 2024, Volume and Issue: 16(12), P. 5893 - 5902
Published: Jan. 1, 2024
This mini-review highlights advances in multi-dimensional carbon electrodes with bio-inspired principles for metal-ion batteries.
Language: Английский
Citations
27
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(23)
Published: April 10, 2024
Abstract Ether‐based electrolyte is beneficial to obtaining good low‐temperature performance and high ionic conductivity in potassium ion batteries. However, the dilute ether‐based electrolytes usually result ion‐solvent co‐intercalation of graphite, poor cycling stability, hard withstand voltage cathodes above 4.0 V. To address aforementioned issues, an electron‐withdrawing group (chloro‐substitution) was introduced regulate solid‐electrolyte interphase (SEI) enhance oxidative stability electrolytes. The (~0.91 M) chloro‐functionalized not only facilitates formation homogeneous dual halides‐based SEI, but also effectively suppress aluminum corrosion at voltage. Using this functionalized electrolyte, K||graphite cell exhibits a 700 cycles, K||Prussian blue (PB) (4.3 V) delivers 500 PB||graphite full‐cell reveals long 6000 cycles with average Coulombic efficiency 99.98 %. Additionally, can operate under wide temperature range from −5 °C 45 °C. This work highlights positive impact functionalization on electrochemical performance, providing bright future application for long‐lasting, wide‐temperature, PIBs beyond.
Language: Английский
Citations
27
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
Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(36)
Published: April 24, 2024
Today, rechargeable batteries are omnipresent and essential for our existence. In order to improve the electrochemical performance of electric fields, introduction electrolytes with fluorine (F)-based inorganic elemental compositions is a direction exploration. However, most fluorocarbons have high global warming potential ozone depletion potential, which do not meet sustainability requirements battery industry. Therefore, developing sustainable viable option future development. Although researchers made much progress in electrolyte optimization, little attention has been paid low-toxic safe electrolytes. This review aims elucidate design principles recent advances this solvents salts. It concludes summary outlook on research directions molecular green practical high-voltage batteries.
Language: Английский
Citations
19
ACS Nano, Journal Year: 2024, Volume and Issue: 18(19), P. 12512 - 12523
Published: May 3, 2024
Ether-based electrolytes are among the most important for potassium-ion batteries (PIBs) due to their low polarization voltage and notable compatibility with potassium metal. However, development is hindered by strong binding between K+ ether solvents, leading [K+–solvent] cointercalation on graphite anodes. Herein, we propose a partially weakly solvating electrolyte (PWSE) wherein local solvation environment of conventional 1,2-dimethoxyethane (DME)-based efficiently reconfigured diethoxy methane (DEM) cosolvent. For PWSE in particular, DEM participates shell weakens chelation DME, facilitating desolvation suppressing behavior. Notably, structure DME-based transformed into more cation–anion–cluster-dominated structure, consequently promoting thin stable solid–electrolyte interphase (SEI) generation. Benefiting from optimized SEI generation, enables electrode reversible (de)intercalation (for over 1000 cycles) K plating/stripping (the K||Cu cell an average Coulombic efficiency 98.72% 400 dendrite-free properties K||K operates 1800 h). We demonstrate that rational design provides approach tailoring toward PIBs.
Language: Английский
Citations
19
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown
Published: July 14, 2024
Abstract Lithium‐ion batteries (LIBs) have emerged as vital elements of energy storage systems permeating every facet modern living, particularly in portable electronic devices and electric vehicles. However, with the sustained economic social development, new‐generation LIBs high density, wide operating temperature range, fast charge, safety are eagerly expected, while conventional ethylene carbonate (EC)‐based electrolytes fail to satisfy corresponding requirements. Comparatively, ether‐based electrolyte fascinating properties recently been revived fields, many advanced exciting performances under developed. This review provides an extensive overview latest breakthroughs concerning applied intercalation cathodes. To systematically outline progression electrolytes, this is categorized from perspective anodes follows: i) graphite anode‐based LIBs; ii) silicon iii) lithium metal LIBs.
Language: Английский
Citations
19