Routes to high-performance layered oxide cathodes for sodium-ion batteries

Chemical Society Reviews, Год журнала: 2024, Номер 53(8), С. 4230 - 4301

Опубликована: Янв. 1, 2024

Various optimization strategies are reviewed and summarized to formulate design principles for layered oxide cathodes sodium-ion batteries.

Язык: Английский

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Sodium layered oxide cathodes: properties, practicality and prospects

Chemical Society Reviews, Год журнала: 2024, Номер 53(15), С. 7828 - 7874

Опубликована: Янв. 1, 2024

This review depicts a broad picture of fundamental electrochemical properties, challenges in practical use, improvement strategies and future prospects Na layered oxides, attempting to offer insights into design high-performance cathodes.

Язык: Английский

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Reconstructing Inorganic‐Rich Interphases by Nonflammable Electrolytes for High‐Voltage and Low‐Temperature LiNi_0.5Mn_1.5O₄ Cathodes

Advanced Functional Materials, Год журнала: 2024, Номер 34(34)

Опубликована: Апрель 8, 2024

Abstract Cobalt‐free and spinel LiNi 0.5 Mn 1.5 O 4 (LNMO) cathodes commonly suffer from undesirable solvent decomposition, serious transition‐metal dissolution, unstable cathode electrolyte interphase (CEI) layers, incurring rapid capacity decay at high voltages low temperatures. Herein, these issues are well addressed by utilizing fluorinated solvents with a coordination number ethyl propionate melting point. A Li 2 CO 3 /LiF‐rich heterostructured CEI layer, which possesses good electron blocking capability of LiF, fast + transport kinetics mechanical stability, is generated the synergistic decomposition hybrid solvents. The robust, homogeneous, well‐balanced layers subsequently prevent catalyzed parasitic side reactions, prohibit ensure interfacial reaction crossover to LNMO cathode, thus improving its cycling stability. Consequently, delivers high‐capacity retention 95.8% over 500 cycles 25 °C 97.5% after 180 −20 °C. This work provides an encouraging alternative design high‐voltage low‐temperature for pushing ongoing research stabilize Co‐free materials toward practical applications.

Язык: Английский

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Interfacial Spinel Local Interlocking Strategy Toward Structural Integrity in P3 Oxide Cathodes

ACS Nano, Год журнала: 2024, Номер 18(20), С. 12945 - 12956

Опубликована: Май 8, 2024

P3-layered transition oxide cathodes have garnered considerable attention owing to their high initial capacity, rapid Na+ kinetics, and less energy consumption during the synthesis process. Despite these merits, practical application is hindered by substantial capacity degradation resulting from unfavorable structural transformations, Mn dissolution migration. In this study, we systematically investigated failure mechanisms of P3 cathodes, encompassing dissolution, migration, irreversible P3–O3′ phase transition, culminating in severe collapse. To address challenges, proposed an interfacial spinel local interlocking strategy utilizing P3/spinel intergrowth as a proof-of-concept material. As result, demonstrated enhanced cycling performance. The effectiveness suppressing migration maintaining structure was validated through depth-etching X-ray photoelectron spectroscopy, absorption situ synchrotron-based diffraction. This engineering presents promising avenue for development advanced cathode materials sodium-ion batteries.

Язык: Английский

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The Hidden Aspects of Batteries: Mechanisms, Strategies, Challenges and Future Directions of Gas Generation in Sodium‐Ion Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 24, 2025

Abstract The accelerated evolution of portable devices, electric vehicles, and energy storage systems has introduced heightened expectations regarding the cost, charge rates, lifespan, safety sodium‐ion batteries (SIBs). However, SIBs produce gas during cycling processes, leading to battery volume expansion, dislocation pole plates diaphragm, increased polarization. These factors contribute significantly lifespan reduction issues. Thus, gaining a thorough understanding generation mechanism in SIBs, as this will facilitate profound comprehension intricate interactions between electrodes electrolytes, provide efficacious guidance for optimizing performance. This paper reviews recent advancements research on mechanisms with particular focus suppression strategies enhance safety. Finally, identifies current issues that remain be addressed study suggests avenues further exploration development more effective strategies. It is anticipated review promote performance, suppression, particularly high‐energy‐density systems.

Язык: Английский

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Suppressing the Jahn–Teller effect in Mn-based Prussian blue analogues by linear (N O) anions

Chemical Engineering Journal, Год журнала: 2024, Номер 493, С. 152575 - 152575

Опубликована: Май 26, 2024

Язык: Английский

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Enhanced structural stability of P2-Na0.75Ni0.25Mn0.75-xTixO2 cathodes with high-voltage non-phase transitions property by Mn-sites manipulation strategy

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1005, С. 176168 - 176168

Опубликована: Авг. 27, 2024

Язык: Английский

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Suppressing the P2–OP4 phase transition of single-crystal P2-type Ni/Zn/Mn-based layered oxide for advanced sodium-ion batteries

Powder Technology, Год журнала: 2024, Номер unknown, С. 120314 - 120314

Опубликована: Сен. 1, 2024

Язык: Английский

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Effect of sodium content on the electrochemical performance of P2‐Na₂Ni₂TeO₆ layered oxide cathode for sodium‐ion batteries

Carbon Energy, Год журнала: 2025, Номер unknown

Опубликована: Янв. 3, 2025

Abstract Sodium‐ion batteries (SIBs) employ P2‐type layered transition metal oxides as promising cathode materials, primarily due to their abundant natural reserves and environmentally friendly characteristics. However, structural instability complex phase transitions during electrochemical cycling pose significant challenges practical applications. Employing cation substitution serves a straightforward yet effective strategy for stabilizing the structure improving kinetics of active material. In this study, we introduce Ni‐rich honeycomb‐layered Na 2+ x Ni 2 TeO 6 (NNTO) material with variable sodium content ( = 0, 0.03, 0.05, 0.10). Physicochemical characterizations reveal that excess at atomic scale modifies surface suppresses transitions, while preserving crystal structure. This results in enhanced cyclic performance improved room temperature. Furthermore, investigate NNTO containing 10% relatively high temperature 60°C, where it exhibits 71.6% capacity retention compared 60% pristine. Overall, our confirm preconstructed layer (induced by sodium) effectively safeguards Ni‐based from degradation processes, thus exhibiting superior relative pristine cathode. study correlation between can potentially be applied commercialization SIBs.

Язык: Английский

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Sodium-ion layered oxide cathode materials based on oxygen anion redox: Mechanism study, voltage hysteresis, and air stability improvement

Next Materials, Год журнала: 2025, Номер 6, С. 100480 - 100480

Опубликована: Янв. 1, 2025

Язык: Английский

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