EES batteries., Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Hybrid superlattice cathode is designed to boost Grotthuss proton transport, enabling high-kinetics and stable Zn–MnO 2 batteries with superior rate capacities (151 mA h g −1 at 10 A ) a long lifespan (8000 cycles).
Язык: Английский
Advanced Energy Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 5, 2025
Abstract The bimetallic synergies effect and combined conversion/alloying mechanism endow thiospinel FeIn 2 S 4 with great potential as an anode material for sodium‐ion batteries (SIBs). However, their inconsistent synthesis, severe volumetric expansion, sluggish reaction kinetics typically lead to unsatisfactory cyclic stability rate capability. Herein, organic framework derived @N/S‐C microrods Fe vacancies is presented fast, durable, reversible sodium storage. presence of significantly modulates the d ‐band center decreases strength Fe─S bond facilitating sodiation jointly. Moreover, a thin stable solid electrolyte interface film inorganic‐rich components formed by induction. Combined N, co‐doped porous carbon matrix, optimal sample delivers excellent capability 381 mAh g −1 at 10 A performance (448 after 500 cycles 1 ). Furthermore, assembled full‐cells also exhibit superior electrochemical 87.5% capacity retention long‐term evaluations. This work presents promising strategy structural regulation sulfides advanced anodes SIBs.
Язык: Английский
Процитировано
23
Chemical Science, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
POP fillers containing aromatic groups with internal π–π effect can catalyze the decomposition of LiTFSI to form a stable LiF-rich SEI layer and inhibit growth lithium dendrites, which helps cycle PEO-based solid-state batteries.
Язык: Английский
Процитировано
3
ACS Nano, Год журнала: 2025, Номер unknown
Опубликована: Янв. 15, 2025
Potassium metal batteries (KMBs) hold promise for stationary energy storage with certain cost and resource merits. Nevertheless, their practicability is greatly handicapped by dendrite-related anodes, the target design of specialized separators to boost anode safety in its nascent stage. Here, we develop a thermally robust biopolymeric separator customized via solvent-exchange amino-siloxane decoration strategy render durable safe KMBs. Through experimental investigation theoretical computation, reveal that optimized porosity surface functionalization could manage ion transport interfacial chemistry, thereby enabling efficient K+ diffusion favorable solid electrolyte interphase achieve prolonged cycling stability (over 3000 h). The thus-assembled full cell retains 80% initial capacity after 400 cycles at 0.5 A g–1. heat-proof property designed further demonstrated. Our separator, affording multifunctional features, provides an appealing solution circumvent instability issues associated potassium batteries.
Язык: Английский
Процитировано
2
Advanced Energy Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 21, 2025
Abstract Layered transition metal dichalcogenides (LTMDs), such as MoS 2 , are promising anode materials for high‐energy‐density lithium‐ion batteries (LIBs) due to their high specific capacities. However, practical applications hindered by poor cycling stability resulting from the instable structure during charge/discharge and inherently low electronic conductivity. To tackle these issues, herein, this study presents design synthesis of spongy silicon‐doped induced long‐chain molecules in mesopores. The material consists few‐layered nanofragments with porosity, abundant edge sites sulfur vacancies. These structural features can promote Li + transport accommodate electrode volume changes charge/discharge. Electrochemical theoretical analyses reveal that silicon doping enhances conductivity while nanostructure enables reversible Li⁺ diffusion along edges, distinct storage interlayers conventional anodes. Notably, delivers a capacity 767.9 mAh g −1 at 0.1 A exhibits remarkable rate capability. Moreover, it demonstrates superior over 83% retention even after 1000 cycles 1.0 outperforming most existing ‐based materials. This work paves new way designing high‐performance LTMD‐based anodes LIBs beyond.
Язык: Английский
Процитировано
2
SusMat, Год журнала: 2025, Номер unknown
Опубликована: Апрель 28, 2025
ABSTRACT Tin sulfide (SnS 2 ) is a promising anode material for sodium/potassium‐ion batteries (SIBs/PIBs) due to its large interlayer spacing and high theoretical capacity. However, application hindered by sluggish kinetics, volume expansion, low conductivity. In this work, synergistic engineering route proposed that combining environmentally friendly chlorella with sulfurized polyacrylonitrile (SPAN) achieve green doping dual‐mode confinement SnS ‐based anode. The SPAN matrix prevents agglomeration, enhances charge transfer, improves structural stability, while phosphorus (P) accelerates “solid‒solid” conversion kinetics. ‒P‒SPAN demonstrates outstanding sodium/potassium storage performance across wide temperature range (‒40°C 70°C), delivering reversible capacities, excellent rate capability, exceptional long‐term cycling stability. reliability of the as‐developed strategy in ‒P‒SPAN//NaNi 0.4 Fe 0.2 Mn O full cell also verified, which shows strong practical potential capacity long durability (241 mAh g −1 /800 cycles/0.5 A /25°C; 159 /400 /60°C; 105 /‒15°C). associated electrochemical mechanisms are elucidated through comprehensive tests, in/ex situ analyses. calculation unveil P‐doping helps enhance adsorption Na + discharge products. This work may pave way developing yet imperfect electrode materials field energy storage.
Язык: Английский
Процитировано
1
Journal of Materials Science Materials in Electronics, Год журнала: 2025, Номер 36(2)
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
Nano Energy, Год журнала: 2025, Номер unknown, С. 110956 - 110956
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
1
Angewandte Chemie, Год журнала: 2025, Номер 137(14)
Опубликована: Апрель 1, 2025
Abstract Ultrahigh‐voltage potassium‐ion batteries (PIBs) with cost competitiveness represent a viable route towards high energy battery systems. Nevertheless, rapid capacity decay poor Coulombic efficiencies remains intractable, mainly attributed to interfacial instability from aggressive potassium metal anodes and cathodes. Additionally, reactivity of K flammable electrolytes pose severe safety hazards. Herein, weakly solvating fluorinated electrolyte intrinsically nonflammable feature is successfully developed enable an ultrahigh‐voltage (up 5.5 V) operation. Through breaking the anionic solvation barrier, synergistic modulation can be achieved by formation robust anion‐derived inorganic‐rich electrode‐electrolyte interfaces on both cathode anode. As proof concept, representative KVPO 4 F sustain 1600 cycles 84.4 % retention at cutoff voltage 4.95 V. Meanwhile, plating/stripping process in our designed also demonstrates optimized electrochemical reversibility stability effectively inhibited dendrites. These findings underscore critical impact anion‐dominated configuration properties. This work provides new insights into rational design safe for advanced PIBs.
Язык: Английский
Процитировано
1
ACS Energy Letters, Год журнала: 2025, Номер unknown, С. 898 - 906
Опубликована: Янв. 22, 2025
Язык: Английский
Процитировано
0
ACS Materials Letters, Год журнала: 2025, Номер unknown
Опубликована: Фев. 13, 2025
Язык: Английский
Процитировано
0