Probing the account of phase transition upon electrochemical cycling of the P2-Na0.67Ni0.15Fe0.2Mn0.65O2 layered oxide cathodes for sodium-ion batteries DOI Creative Commons
Shiyou Li, Xiaoqi Fan, Shimin Wang

et al.

Materials Research Express, Journal Year: 2024, Volume and Issue: 11(3), P. 035504 - 035504

Published: March 1, 2024

Abstract Layered P2-Na 0.67 Ni 0.15 Fe 0.2 Mn 0.65 O 2 (P2-NFM) cathode material has attracted great attention in sodium-ion batteries due to its high theoretical capacity, low cost, and environmental friendliness. However, P2-NFM exhibits irreversible phase transition slip of metal layers the voltage range during charging process, leading a gradually declined performance material. It is therefore necessary investigate mechanism as well effect on performance. Herein, utilizing ex situ x-ray diffraction spectroscopy photoelectron spectroscopy, crystal structure TM (transition-metal) bonding changes caused by are elucidated. found that prone undergo an P2-O2 at voltage, causing lattice parameters rapid capacity decay. The mainly he dynamic transformation valence states materials voltage. this process results fluctuations bond lengths between these elements oxygen, consequently instigating interlayer within Besides, charge compensation been elucidated based study initial process. Results show contributed range, while small amount range. reveals essential cause adverse points out direction for improving cycling stability layered oxide materials.

Language: Английский

Routes to high-performance layered oxide cathodes for sodium-ion batteries DOI
Jingqiang Wang,

Yan‐Fang Zhu,

Yu Su

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(8), P. 4230 - 4301

Published: Jan. 1, 2024

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

Language: Английский

Citations

140
Facilitating Layered Oxide Cathodes Based on Orbital Hybridization for Sodium‐Ion Batteries: Marvelous Air Stability, Controllable High Voltage, and Anion Redox Chemistry DOI

Xin‐Bei Jia,

Jingqiang Wang, Yi‐Feng Liu

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(15)

Published: Nov. 1, 2023

Layered oxides have become the research focus of cathode materials for sodium-ion batteries (SIBs) due to low cost, simple synthesis process, and high specific capacity. However, poor air stability, unstable phase structure under voltage, slow anionic redox kinetics hinder their commercial application. In recent years, concept manipulating orbital hybridization has been proposed simultaneously regulate microelectronic modify surface chemistry environment intrinsically. this review, modes between atoms in 3d/4d transition metal (TM) orbitals O 2p near region Fermi energy level (E

Language: Английский

Citations

67
Manipulating Na occupation and constructing protective film of P2-Na0.67Ni0.33Mn0.67O2 as long-term cycle stability cathode for sodium-ion batteries DOI

Yiran Sun,

Pengfei Zhou, Siyu Liu

et al.

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 88, P. 603 - 611

Published: Oct. 13, 2023

Language: Английский

Citations

29
An air-stable single-crystal layered oxide cathode based on multifunctional structural modulation for high-energy-density sodium-ion batteries DOI
Yi‐Feng Liu, Haiyan Hu, Jiayang Li

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 8, 2024

Language: Английский

Citations

18
Progress and perspectives on iron-based electrode materials for alkali metal-ion batteries: a critical review DOI
Junzhe Li, Chao Wang, Rui Wang

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(8), P. 4154 - 4229

Published: Jan. 1, 2024

This review critically evaluates recent advances in iron-based electrode materials and applications alkali metal ion batteries, covering chemical synthesis, structural design, modification strategies, with insights into future directions.

Language: Английский

Citations

18
Review on layered oxide cathodes for sodium‐ion batteries: Degradation mechanisms, modification strategies, and applications DOI Creative Commons
Yong Li, Guoliang Liu,

Jiangxuan Che

et al.

Interdisciplinary materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Abstract Exploiting high‐capacity cathode materials with superior reliability is vital to advancing the commercialization of sodium‐ion batteries (SIBs). Layered oxides, known for their eco‐friendliness, adaptability, commercial viability, and significant recent advancements, are prominent materials. However, electrochemical cycling over an extended period can trigger capacity fade, voltage hysteresis, structural instability, adverse interface reactions which shorten battery life cause safety issues. Thus, it essential require in‐depth understanding degradation mechanisms layered oxides. In this review, crystal electronic structures oxides revisited first, a renewed also presented. Three critical highlighted deeply discussed namely Jahn–Teller effect, phase transition, surface decomposition, directly responsible inferior performances. Furthermore, comprehensive overview recently reported modification strategies related proposed. Additionally, review discusses challenges in practical application, primarily from mechanism standpoint. Finally, outlines future research directions, offering perspectives further develop SIBs, driving industrialization SIBs.

Language: Английский

Citations

17
High-Entropy Mn/Fe-Based Layered Cathode with Suppressed P2–P′2 Transition and Low-Strain for Fast and Stable Sodium Ion Storage DOI
Ziqing Wang,

Shengfeng Zhang,

Xiaoguang Fu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(2), P. 2378 - 2388

Published: Jan. 4, 2024

Mn/Fe-based layered oxides are deemed to be a highly suitable cathode for sodium-ion batteries (SIBs) due their high capacity and abundant Mn/Fe resources, but they still suffer from complicated phase transition large volume variation. To conquer these problems, high-entropy oxide P2–Na0.67Mn0.5Fe0.334Cu0.045Mg0.014Ti0.014Al0.014Zr0.014Sn0.014O2 (Mn–Fe–HEO) is rationally designed fabricated. When used as SIB, Mn–Fe–HEO exhibits much higher reversible better rate capability than low-entropy Na0.67Mn0.5Fe0.334Cu0.164O2 (Mn–Fe–LEO) within wide voltage range of 1.5–4.3 V. Ex situ X-ray diffraction combined with diffusion kinetics tests microstructural characterizations demonstrate that enhanced structural stability effectively prevents the Jahn–Teller distortion Mn3+, stabilizes Na+ channels, enables smooth transfer more working Na+. These lead stable fast redox electrochemistry in Mn–Fe–HEO. This work deepens understanding relationship between structure performance provides important guidance rational design future cathodes.

Language: Английский

Citations

15
Inducing Na+ Site Rearrangement Through a Cosubstitution Strategy for Rapid Na Diffusion Kinetics of P2-Type Layered Metal Oxides DOI
Mingyang Gao, Huijun Li,

Zhenxin Zhao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(12), P. 14789 - 14798

Published: March 14, 2024

The P2-layered metal oxide cathode materials are crucial for constructing high-rate sodium-ion batteries (SIBs); however, its practical application is hindered by the high Na+ diffusion barrier resulting from Na+/vacancy ordering. Herein, a Li/Zn cosubstitution P2–Na0.67Ni0.33Mn0.67O2 (NLNZM) was synthesized via sol–gel method assisted with citric acid, which can induce rearrangement of sites to disrupt ordered structures. XRD Rietveld refinement confirms higher occupancy at Nae low barriers through cosubstitution. In addition, highly reversible phase evolution NLNZM confirmed in situ results, thereby ensuring stability structure volume change rate (0.78%). Furthermore, Li and Zn reduce surface energy increase interlayered distance achieve rapid interfacial kinetics. As result, has exhibited capacity 152.8 mAh g–1 an outstanding performance 103.4 5C. After 200 cycles 5C, retention 81.1%. This work proposes strategy disorder achieving migration as material SIBs.

Language: Английский

Citations

14
Cu/Ti co-doping boosting P2-type Fe/Mn-based layered oxide cathodes for high-performance sodium storage DOI
Mengmeng Yan, Kang Xu, Yuxin Chang

et al.

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 651, P. 696 - 704

Published: July 30, 2023

Language: Английский

Citations

22
Ultracapacity Properties of the Refined Structure in Na-Rich Na3.4V2(PO4)3/C as Sodium-Ion Battery Cathodes by Tapping the Na-Vacancy Potential DOI
Jun Cong, Shaohua Luo, Pengyu Li

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 11(45), P. 16341 - 16353

Published: Nov. 3, 2023

Na3V2(PO4)3 has been attracting great interest from scholars owing to its high voltage platform and energy storage capacity. However, poor electronic conductivity weak ion diffusion ability seriously restrict the application of actual industrialization. In view above defects, Na3+xV2(PO4)3/C (x = 0, 0.2, 0.4, 0.6) cathode materials for sodium-ion batteries (SIBs) are prepared through a solid-phase method in this paper. The X-ray diffraction (XRD) results show that Na-rich amount x 0.4 attains upper limit solid solution Na3V2(PO4)3, "ultracapacity" effect reaches maximum at value; capacity is as 132.4 mAh/g, with remarkable cycle stability (96% retention after 300 cycles). density functional theory (DFT) calculations clearly explain reason excess sodium occupying electrochemically active Na2 site ultracapacity. It found electron paramagnetic resonance (EPR) test excessive caused some high-valent V be reduced low-valent V, which maintained electrical balance crystal structure. Through absorption near edge structure (XANES) element, it change valence during charge discharge process consistent Na3V2(PO4)3. Refined structural characterization by spherical aberration microscopy ex situ XRD also prove undergoes phase transition charge–discharge can reversibly recovered. These findings further feasible synthesize new stable structure, makes practical material SIBs having potential future.

Language: Английский

Citations

21