Optimization Strategies of Na3V2(PO4)3 Cathode Materials for Sodium-Ion Batteries

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Oct. 4, 2024

Abstract Na 3 V 2 (PO 4 ) (NVP) has garnered great attentions as a prospective cathode material for sodium-ion batteries (SIBs) by virtue of its decent theoretical capacity, superior ion conductivity and high structural stability. However, the inherently poor electronic sluggish diffusion kinetics NVP give rise to inferior rate performance unsatisfactory energy density, which strictly confine further application in SIBs. Thus, it is significance boost sodium storage material. Up now, many methods have been developed optimize electrochemical In this review, latest advances optimization strategies improving are well summarized discussed, including carbon coating or modification, foreign-ion doping substitution nanostructure morphology design. The highlighted, involving Na, V, PO 3− sites, include single-site doping, multiple-site single-ion multiple-ion so on. Furthermore, challenges prospects high-performance also put forward. It believed that review can provide useful reference designing developing toward large-scale

Language: Английский

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A Medium‐Entropy NASICON Cathode for Sodium‐Ion Batteries Achieving High Energy Density Through Dual Enhancement of Voltage and Capacity

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

Published: March 17, 2025

Abstract Na 3 V 2 (PO 4 ) (NVP) is recognized for its promising commercialization potential as a sodium‐ion battery (SIB) cathode, due to thermodynamic stability and open structure. However, the limited energy density remains major obstacle further advancement of NVP. Herein, medium‐entropy NASICON 3.3 1.4 Al 0.3 (MgCoNiCuZn) 0.06 (NVAMP‐0.3) designed by introducing 3+ , Mg 2+ Co Ni Cu Zn regulate configurational entropy. These NVAMP‐0.3 achieve an elevated average operating voltage (3.33 V) high capacity (138.1 mAh g −1 based on 2.3 + through /V 4+ 5+ multi‐electron reactions. By simultaneously enhancing voltage, exhibits impressive 460 Wh kg . Furthermore, demonstrates excellent low‐temperature tolerance with retention rate 94.6% after 300 cycles at −40 °C. In situ XRD unveils underlying cause unique phenomenon where solid‐solution reaction accounts faster electrochemical kinetics compared redox. DFT calculations indicate that possesses superior electronic conductivity reduced migration barriers. A pouch cell assembled cathode hard carbon anode highly stable cycling (89.3% 200 1 C). This study provides valuable insights into developing NASICON‐type cathodes densities SIBs.

Language: Английский

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Research Advances on Lithium‐Ion Batteries Calendar Life Prognostic Models

Carbon Neutralization, Journal Year: 2025, Volume and Issue: 4(1)

Published: Jan. 1, 2025

ABSTRACT In military reserve power supplies, there is an urgent need for superior secondary batteries to replace conventional primary batteries, and lithium‐ion (LIBs) emerge as one of the best choices due their exceptional performance. The life LIBs includes cycle calendar life, with spanning from years decades. Accurate prediction crucial optimizing deployment maintenance in applications. Model‐based prognostics are usually established estimate using accelerated aging methods under various storage conditions. This review firstly outlines general prognostic workflow LIBs, analyzes degradation mechanisms, summarizes influencing factors; then, we introduce models, evolving simplistic empirical models (EMs) nonempirical mechanistic (MMs) based on LIB knowledge then traditional hybrid empirical‐mechanistic (trad‐EMMs). Finally, data‐driven (DDMs) machine learning (ML) discussed limitation methods, pure knowledge‐integrated establishing a comprehensive framework assessment. To our knowledge, this paper presents first field, summarizing offering some insights into future model development directions. can facilitate researchers analysis prolongation, thereby better serving application national economic life.

Language: Английский

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Polyanion-type iron-based sulfate cathode materials: from fundamental research to industrialization

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104049 - 104049

Published: Jan. 1, 2025

Language: Английский

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Achieving Fast Ion/Electron Transportation and Smooth Phase Transition in Polyanion Cathode by the High Entropy Strategy

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

Published: March 20, 2025

Abstract Polyanion compounds arouse significant interest as cathode materials for sodium‐ion batteries due to their large 3D lattice structures and stable frameworks. Nonetheless, it remains a great challenge polyanion cathodes achieve both considerable rate capability long‐term cycling lifespan. Herein, high entropy NASICON‐type cathode, Na 3.6 VMn 0.4 Fe Ti 0.1 Zr (PO 4 ) 3 (HE‐NVMFTZP), is successfully synthesized the first time exhibits superior sodium storage performance. Specifically, delivers reversible capacity of 110 mAh g −1 , remarkable (78.5 even at 20 C), an ultralong lifespan (80.6% after 10 000 cycles which outperforms all reported metal‐substituted NASICON electrodes. Moreover, in expanded voltage window 1.5–4.3 V, HE‐NVMFTZP electrode impressive 177.4 (≈494 Wh kg ). Comprehensive experimental characterizations first‐principles calculations reveal that effect facilitates ion/electron transportation alleviates volume expansion phase transition during charge/discharge process. This work provides facile strategy on local structural engineering effectively boost performance can shed light design high‐capacity materials.

Language: Английский

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Research Progress on the Mechanisms of MOF/COF and Their Derivatives in Zinc−Ion Batteries

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104220 - 104220

Published: March 1, 2025

Language: Английский

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Bond Structure Engineering Induced the Mn Redox Stabilization Toward High‐Energy Mn‐Based Phosphate Cathode

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: May 9, 2024

Abstract Manganese (Mn) ‐based phosphate is poised for commercial applications driven by its cost‐effectiveness, robust NASICON framework, and multi‐dimensional Na + pathways. However, it encounters insufficient redox reactions rapid structural collapse with severe lattice distortion as the culprit. Herein, one meticulously engineered substitutional solid solution cathode (integrating 4 MnCr(PO ) 3 MnTi(PO , denoted NMCTP) proposed to regulate local crystal structure of Mn─O bond stabilize promote Mn reaction optimizing electrochemical performance. It uncovered that bulk framework stability constructed strongly symmetric lengths MnO 6 octahedrons strengthened covalency. In addition, sufficient utilization tightly correlated redistributed Na2 occupancy enhanced diffusion kinetics accelerated electron transportation. By virtue above merits, The NMCTP performs ultra‐high capacity (150.3 mAh g −1 at 0.1 C) appealing cycling (84.7% retention over 1000 cycles). Sodium storage mechanisms potential factors high potentials are unveiled in materials. This work sheds light on fire‐new strengthening view high‐performance Mn‐based cathodes.

Language: Английский

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Multifunctional-Element doping of NASICON-Structured cathode enables High-Rate and stable sodium storage

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154304 - 154304

Published: July 27, 2024

Language: Английский

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Win–win strategy: zinc-ion anchoring crosslinked hydrogels and regulating electronic structure to achieve V³⁺/V⁴⁺/V⁵⁺ redox reaction of Na₃V₂(PO₄)₃ with high thermal stability and zero strain characteristics

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(30), P. 19422 - 19439

Published: Jan. 1, 2024

Zinc-ion anchoring crosslinked hydrogels and regulating electronic structure to achieve high performance of Na 3 V 2 (PO 4 ) .

Language: Английский

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Toward High Performance of Na₄Fe₃(PO₄)₂P₂O₇ Cathode via Constructing a Porous Structure for Sodium-Ion Batteries

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(30), P. 11361 - 11368

Published: July 13, 2024

Language: Английский

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