Recent Advances in Fast‐Charging Sodium‐Ion Batteries

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 19, 2025

Abstract Sodium‐ion batteries (SIB), stemming from the abundance of sodium resources and their cost‐effectiveness, have positioning them favorably a potential candidate for stationary energy storage public electric vehicles. As an intermediary grid system output terminals charging station, fast‐charging performance has actually become crucial metric, which greatly relates to station utilization cost‐ time‐efficient. Besides, capacity is also relevant long‐term stable operation transportation. Given remarkable advancements in SIBs reported recently, review about this topic scope timely important at present. In study, bottlenecks are first assessed, after that, comprehensive overview employed strategies improving capacities three aspects: structures design, reaction mechanism regulation, optimization solvation structure interfacial property given. Finally, challenges prospects further research toward proposed. The authors hope will provide deep understanding design principles inspire more endeavors conquer practicability issue fields.

Language: Английский

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Phase Transition Behavior During Sintering Process of Li‐Rich Materials

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract Phase transition serves as an ordinary behavior occurring during the high‐temperature calcination process, while it becomes quite complicated in Li‐rich materials composed of rhombohedral phase LiTMO 2 (TM: Ni, Mn) with R m space group and monoclinic Li TMO 3 C 2/ group. Yet to be firmly elucidated is how precursor transforms into ( )‐Li ) compound what precise conversion mechanism between these two phases. This work systematically elaborates structural evolution Li/O incorporation calcination, proposes a mechanism. A series characterizations on rearrangement detailed analysis provide insights comprehension this transition, i.e., metal (TM) vacancies induced by interlayer TM ions migration function primary reason driving transformation from . offers novel concept for regulation cathodes.

Language: Английский

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Tin disulfide nanosheets encapsulated by elemental sulfur for advanced sodium ion batteries

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1012, P. 178541 - 178541

Published: Jan. 1, 2025

Language: Английский

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Progress and perspectives on electrocatalysis in room-temperature Na–S batteries

Chemical Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Room-temperature sodium–sulfur (RT Na–S) batteries can allow an ultrahigh specific capacity and a high energy density but unfortunately suffer from lot of intractable challenges sulfur cathodes.

Language: Английский

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Single crystal P2-type layered cathodes with optimized crystal plane orientation improved high voltage stability for sodium-ion batteries

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 110892 - 110892

Published: Jan. 1, 2025

Language: Английский

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Green Recovery of Toxic Prussian White Cathode From Spent All‐Climate Sodium‐Ion Batteries Using Low‐Melting Mixture Solvents (LoMMSs)

Battery energy, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

ABSTRACT A large number of spent sodium‐ion batteries (SIBs) will be produced as SIBs become more widely used. However, components SIBs, such the cathode Prussian white Na 2 Mn[Fe(CN) 6 ], are toxic and hazardous, leading to water soil pollution posing a threat human health. Therefore, recycling is important meaningful. Here, we use phytic acid‐based low‐melting mixture solvents (LoMMSs) for efficient recovery hazardous at mild temperatures. Results show that highest leaching efficiency from could reach 94.7% by polyethylene glycol 200:phytic acid (14:1) 80°C 24 h with liquid/solid ratio 50:1. Furthermore, metal extracted leachate found precipitate when used anti‐solvent, ammonium hydroxide achieving precipitation 89.3% room temperature.

Language: Английский

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Activating and Stabilizing ORR in P2-type Cathode by Modulating Orbital Hybridization and Local Covalency towards High-Rate and Long-Cycle Sodium-Ion Batteries

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104095 - 104095

Published: Feb. 1, 2025

Language: Английский

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A Cross-Linked Polymer Coating Strategy to Enhance the Performance of NaNi_0.33Fe_0.33Mn_0.33O₂ Cathode for Sodium-Ion Batteries

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

O3-type layered oxide materials are regarded as optimal cathode candidates for sodium-ion batteries (SIBs) on account of their exceptional energy density. Nevertheless, the rapid decline in capacity resulting from instability interface structure represents a significant challenge to practical implementation these materials. In this study, we propose an innovative method modify NaNi0.33Fe0.33Mn0.33O2 (NFM) material by applying cross-linked polymer (CLP) coating. X-ray photoelectron spectroscopy (XPS) analysis demonstrates that CLP coating effectively inhibits decomposition electrolyte (CEI) membrane course cycling, leading substantial improvement stability electrode material's interface. Moreover, oxygen-containing groups within can compete with propylene carbonate (PC) solvent molecules Na+ coordination, reducing coordination between and PC molecules. This process facilitates more efficient diffusion Na+, thereby enhancing rate performance. Consequently, CLP-coated NFM (NFM@CLP) exhibit enhanced electrochemical After 300 cycles at 25 °C, NFM@CLP retains 72.36% its capacity, compared 62.59% pristine NFM. Even elevated temperatures (65 °C), retention remains high 63.84% after 200 cycles, whereas drops 3.65%. full-cell tests (vs hard carbon), also exhibits better (85.07% 150 cycles). study offers effective simple approach performance SIBs, providing unique insights into advanced storage

Language: Английский

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Dual-enhancements of Stability and Wettability in O3-Na0.95Ni1/3Fe1/3Mn1/3O2 Cathodes by Converting Surface Residual Alkali into Ultalthin Na2Ti3O7 Coatings

Nanoscale, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Residual-alkali-derived Na 2 Ti 3 O 7 coatings boost electrolyte wettability and electrochemical performance of a layered oxide cathode for sodium-ion batteries.

Language: Английский

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Elucidating Sodium Ion Storage Mechanisms in Hard Carbon Anodes at the Electronic Level

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Abstract Sodium‐ion batteries (SIBs) are a promising technology for advanced energy storage systems. Hard carbon (HC) is commonly used SIB anode material; however, the Na ion mechanism in HC remains poorly understood and highly debated. Here, paramagnetic species during systematically studied to elucidate underlying at an electronic level using high‐resolution electron resonance (EPR) spectroscopy, complemented by situ Raman synchrotron X‐ray diffraction, density functional theory calculations. This investigation identifies characterizes coexistence of two distinct intercalation processes HC: + ‐solvent co‐intercalation, which active across both sloping plateau voltage regions. Additionally, region, ions also stored in‐plane Stone‐Wales defect sites, transition into quasi‐metallic state subsequently metallic as progresses. transformation driven charge redistribution within graphene layers. These insights establish direct paramagnetic‐electronic structure‐electrochemical property relationship HC, providing new mechanism. Furthermore, this study highlights unique capability EPR spectroscopy elucidating electrode materials.

Language: Английский

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