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

---

Robust pseudocapacitive Na+ intercalation induced by MoS2 on active Mo2C current collector interface for high areal capacity sodium-ion batteries

Nano Energy, Год журнала: 2024, Номер 125, С. 109590 - 109590

Опубликована: Апрель 5, 2024

Язык: Английский

---

Recent Advances in High‐Entropy Layered Oxide Cathode Materials for Alkali Metal‐Ion Batteries

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 29, 2024

Abstract Since the electrochemical de/intercalation behavior is first detected in 1980, layered oxides have become most promising cathode material for alkali metal‐ion batteries (Li + /Na /K ; AMIBs) owing to their facile synthesis and excellent theoretical capacities. However, inherent drawbacks of unstable structural evolution sluggish diffusion kinetics deteriorate performance, limiting further large‐scale applications. To solve these issues, novel strategy high entropy has been widely applied oxide cathodes AMIBs recent years. Through multielement synergy stabilization effects, high‐entropy (HELOs) can achieve adjustable activity enhanced stability. Herein, basic concepts, design principles, methods HELO are introduced systematically. Notably, it explores detail improvements on limitations oxides, highlighting latest advances materials field AMIBs. In addition, introduces advanced characterization calculations HELOs proposes potential future research directions optimization strategies, providing inspiration researchers develop areas energy storage conversion.

Язык: Английский

---

High‐Entropy Oxides for Rechargeable Batteries

Advanced Science, Год журнала: 2024, Номер 11(25)

Опубликована: Апрель 22, 2024

Abstract High‐entropy oxides (HEOs) have garnered significant attention within the realm of rechargeable batteries owing to their distinctive advantages, which encompass diverse structural attributes, customizable compositions, entropy‐driven stabilization effects, and remarkable superionic conductivity. Despite brilliance HEOs in energy conversion storage applications, there is still lacking a comprehensive review for both entry‐level experienced researchers, succinctly encapsulates present status challenges inherent HEOs, spanning features, intrinsic properties, prevalent synthetic methodologies, diversified applications batteries. Within this review, endeavor distill characteristics, ionic conductivity, entropy explore practical (lithium‐ion, sodium‐ion, lithium‐sulfur batteries), including anode cathode materials, electrolytes, electrocatalysts. The seeks furnish an overview evolving landscape HEOs‐based cell component shedding light on progress made hurdles encountered, as well serving guidance compositions design optimization strategy enhance reversible stability, electrical electrochemical performance conversion.

Язык: Английский

---

Manipulating Local Chemistry and Coherent Structures for High-Rate and Long-Life Sodium-Ion Battery Cathodes

ACS Nano, Год журнала: 2024, Номер 18(20), С. 13150 - 13163

Опубликована: Май 10, 2024

Layered sodium transition-metal (TM) oxides generally suffer from severe capacity decay and poor rate performance during cycling, especially at a high state of charge (SoC). Herein, an insight into failure mechanisms within high-voltage layered cathodes is unveiled, while two-in-one tactic localization coherent structures devised to improve structural integrity Na+ transport kinetics, elucidated by density functional theory calculations. Elevated Jahn–Teller [Mn3+O6] concentration on the particle surface sodiation, coupled with intense interlayer repulsion adverse oxygen instability, leads irreversible damage near-surface structure, as demonstrated X-ray absorption spectroscopy in situ characterization techniques. It further validated that skeleton substantially strengthened through electronic structure modulation surrounding oxygen. Furthermore, optimized diffusion effectively attainable via regulating intergrown structures, successfully achieved Zn2+ inducer. Greatly, good redox reversibility initial Coulombic efficiency 92.6%, impressive capability (86.5 mAh g–1 70.4% retention 10C), enhanced cycling stability (71.6% after 300 cycles 5C) are exhibited P2/O3 biphasic cathode. believed profound comprehension will herald fresh perspectives develop cathode materials for sodium-ion batteries.

Язык: Английский

---

A Universal Interfacial Reconstruction Strategy Based on Converting Residual Alkali for Sodium Layered Oxide Cathodes: Marvelous Air Stability, Reversible Anion Redox, and Practical Full Cell

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(47), С. 32317 - 32332

Опубликована: Ноя. 16, 2024

Mn-based layered oxide cathodes have attracted widespread attention due to high capacity and low cost, however, poor air stability, irreversible phase transitions, slow kinetics inhibit their practical application. Here, we propose a universal interfacial reconstruction strategy based on converting residual alkali tunnel Na0.44MnO2 for addressing the above mentioned issue simultaneously, using O3 NaNi0.4Fe0.2Mn0.4O2@2 mol % (NaNFM@NMO) as prototype material. The optimized material exhibits an initial energy density comparable with lithium-ion batteries. reversible anionic redox behavior charge compensation mechanism of NaNFM@NMO were analyzed verified by soft X-ray absorption spectrum in situ spectrum. Due intrinsic stability structure, excellent highly structure evolution cathode are achieved, which confirmed contact angle test, rigorous aging diffraction. More importantly, demonstrates great match nonpresodiated hard carbon anode shows electrochemical performance full cell. Additionally, such could be also applied modify P2-type cathodes, showing superior universality good prospects industrialized production. Overall, proposed improve while remaining bulk stable simultaneously will open up whole new field optimization other electrode materials.

Язык: Английский

---

An air-stable single-crystal layered oxide cathode based on multifunctional structural modulation for high-energy-density sodium-ion batteries

Science China Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Янв. 8, 2024

Язык: Английский

---

Mn incorporated BiOCl anode for high performance sodium ion batteries

Applied Surface Science, Год журнала: 2025, Номер 695, С. 162888 - 162888

Опубликована: Март 5, 2025

Язык: Английский

---

Reviving Sodium Tunnel Oxide Cathodes Based on Structural Modulation and Sodium Compensation Strategy Toward Practical Sodium‐Ion Cylindrical Battery

Advanced Materials, Год журнала: 2024, Номер 36(41)

Опубликована: Сен. 2, 2024

Abstract As a typical tunnel oxide, Na 0.44 MnO 2 features excellent electrochemical performance and outstanding structural stability, making it promising cathode for sodium‐ion batteries (SIBs). However, suffers from undesirable challenges such as surface residual alkali, multiple voltage plateaus, low initial charge specific capacity. Herein, an internal external synergistic modulation strategy is adopted by replacing part of the Mn with Ti to optimize bulk phase construct Ti‐containing epitaxial stabilization layer, resulting in reduced + transport kinetics improved water/air stability. Specifically, 0.85 0.15 O using water‐soluble carboxymethyl cellulose binder can realize capacity retention rate 94.30% after 1,000 cycles at 2C, stability further verified kilogram large‐up applications. In addition, taking advantage rich content Prussian blue analog (PBA), PBA‐Na 1‐x x composites are designed compensate insufficient oxide matched hard carbon achieve preparation coin full cell 18650 cylindrical battery satisfactory performance. This work enables application oxides SIBs first time promotes commercialization SIBs.

Язык: Английский

---

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

---