Realizing High Capacity and Zero Strain in Layered Oxide Cathodes via Lithium Dual-Site Substitution for Sodium-Ion Batteries

Journal of the American Chemical Society, Год журнала: 2023, Номер 145(17), С. 9596 - 9606

Опубликована: Апрель 14, 2023

Sodium-ion batteries have garnered unprecedented attention as an electrochemical energy storage technology, but it remains challenging to design high-energy-density cathode materials with low structural strain during the dynamic (de)sodiation processes. Herein, we report a P2-layered lithium dual-site-substituted Na0.7Li0.03[Mg0.15Li0.07Mn0.75]O2 (NMLMO) material, in which Li ions occupy both transition-metal (TM) and alkali-metal (AM) sites. The combination of theoretical calculations experimental characterizations reveals that LiTM creates Na-O-Li electronic configurations boost capacity derived from oxygen anionic redox, while LiAM serves LiO6 prismatic pillars stabilize layered structure through suppressing detrimental phase transitions. As result, NMLMO delivers high specific 266 mAh g-1 simultaneously exhibits nearly zero-strain characteristic within wide voltage range 1.5-4.6 V. Our findings highlight effective way dual-site substitution break capacity-stability trade-off for advanced rechargeable batteries.

Язык: Английский

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The Distance Between Phosphate‐Based Polyanionic Compounds and Their Practical Application For Sodium‐Ion Batteries

Advanced Materials, Год журнала: 2023, Номер 36(7)

Опубликована: Авг. 18, 2023

Abstract Sodium‐ion batteries (SIBs) are a viable alternative to meet the requirements of future large‐scale energy storage systems due uniform distribution and abundant sodium resources. Among various cathode materials for SIBs, phosphate‐based polyanionic compounds exhibit excellent sodium‐storage properties, such as high operation voltage, remarkable structural stability, superior safety. However, their undesirable electronic conductivities specific capacities limit application in systems. Herein, development history recent progress cathodes first overviewed. Subsequently, effective modification strategies summarized toward high‐performance including surface coating, morphological control, ion doping, electrolyte optimization. Besides, electrochemical performance, cost, industrialization analysis SIBs discussed accelerating commercialization development. Finally, directions comprehensively concluded. It is believed that this review can provide instructive insight into developing practical SIBs.

Язык: Английский

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Structure evolution of layered transition metal oxide cathode materials for Na-ion batteries: Issues, mechanism and strategies

Materials Today, Год журнала: 2022, Номер 62, С. 271 - 295

Опубликована: Дек. 16, 2022

Язык: Английский

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Constructing heterointerface of Bi/Bi2S3 with built-in electric field realizes superior sodium-ion storage capability

eScience, Год журнала: 2023, Номер 3(4), С. 100138 - 100138

Опубликована: Апрель 28, 2023

Bismuth sulfide (Bi2S3) is a dominant anode material for sodium-ion batteries due to its high theoretical capacity. However, extreme volume fluctuations as well low electrical conductivity and reaction kinetics still limit practical applications. Herein, we construct an abundant heterointerface of Bi/Bi2S3 by engineering the structure Bi nanoparticles embedded on Bi2S3 nanorods (denoted Bi–Bi2S3 NRs) effectively solve abovementioned obstacles. Theoretical systematic characterization results reveal that constructed has built-in electric field, significantly boosts conductivity, enhances Na+ diffusion kinetics, buffers variation. With this modification, it can deliver long cycling life, with ultra-high capacity 500 mAh g−1 over cycles at 1 ​A ​g−1, outstanding rate capability, 456 even 15 ​g−1. Moreover, full cell achieve energy density 180 ​Wh kg−1 power 40 ​W ​kg−1. Our research opens up fresh path improving dynamics structural stability metal sulfide-based electrode materials SIBs.

Язык: Английский

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Boosting the Reversibility and Kinetics of Anionic Redox Chemistry in Sodium-Ion Oxide Cathodes via Reductive Coupling Mechanism

Journal of the American Chemical Society, Год журнала: 2023, Номер 145(41), С. 22708 - 22719

Опубликована: Окт. 9, 2023

Activating anionic redox chemistry in layered oxide cathodes is a paradigmatic approach to devise high-energy sodium-ion batteries. Unfortunately, excessive oxygen usually induces irreversible lattice loss and cation migration, resulting rapid capacity voltage fading sluggish reaction kinetics. Herein, the reductive coupling mechanism (RCM) of uncommon electron transfer from copper ions unraveled novel P2-Na0.8Cu0.22Li0.08Mn0.67O2 cathode for boosting reversibility kinetics reactions. The resultant strong covalent Cu-(O-O) bonding can efficaciously suppress oxidation migration. Consequently, delivers marvelous rate capability (134.1 63.2 mAh g-1 at 0.1C 100C, respectively) outstanding long-term cycling stability (82% retention after 500 cycles 10C). intrinsic functioning mechanisms RCM are fully understood through systematic situ/ex situ characterizations theoretical computations. This study opens new avenue toward enhancing dynamics chemistry.

Язык: Английский

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Recent progress and prospects of NASICON framework electrodes for Na-ion batteries

Progress in Materials Science, Год журнала: 2023, Номер 137, С. 101128 - 101128

Опубликована: Апрель 14, 2023

Язык: Английский

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Recent Advances in Mn‐Rich Layered Materials for Sodium‐Ion Batteries

Advanced Functional Materials, Год журнала: 2023, Номер 33(13)

Опубликована: Янв. 20, 2023

Abstract Branded with low cost and a high degree of safety, an ambitious aim substituting lithium‐ion batteries in many fields, sodium‐ion have received fervid attention recent years after being dormant for decades. Layered materials are major focus study owing to the extensive experience already gained batteries, pursuit Mn‐rich composition is critical reduce while retaining performance. This review provides timely update progress layered based on understandings phase forming principles, structure transformation upon cycling charge compensation mechanisms discusses potential ambiguities high‐performance materials.

Язык: Английский

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Ultrafast 3D Hybrid‐Ion Transport in Porous V₂O₅ Cathodes for Superior‐Rate Rechargeable Aqueous Zinc Batteries

Advanced Energy Materials, Год журнала: 2023, Номер 13(18)

Опубликована: Март 22, 2023

Abstract Layered V 2 O 5 is a star cathode material of rechargeable aqueous zinc‐based batteries (RAZBs) owing to the rich redox chemistry vanadium, which commonly exhibits 2D ion‐diffusion mechanism through Zn 2+ (de)intercalation at edge sites but plagued by inert basal planes. Here, hierarchically porous nanosheets vertically grown on carbon cloth (V /C) are innovatively prepared, where structure with lattice defects successfully unlocks plane provide additional channels and abundant active sites. Thus, highly efficient ultrafast 3D Li + /Zn co‐insertion/extraction behaviors along both c ‐axis ab realized for first time in formulated 15 m LiTFSI 1 Zn(CF 3 SO ) electrolyte, as elucidated systematic ex situ analyses, multiple electrochemical measurements, theoretical computations. As result, /C electrode delivers an exceptional high‐rate capability (up 100 A g −1 ultralong cycling durability (15 000 cycles) RAZBs. Finally, quasi‐solid‐state wearable zinc employing demonstrate respectable performance even under severe deformations low temperatures. This work achieves conceptual breakthrough represented upgrading traditional ion transportation layered cathodes more facile diffusion designing high‐performance battery electrochemistry.

Язык: Английский

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Wide-temperature-range sodium-metal batteries: from fundamentals and obstacles to optimization

Energy & Environmental Science, Год журнала: 2023, Номер 16(11), С. 4759 - 4811

Опубликована: Янв. 1, 2023

This review comprehensively summarizes the operation fundamentals of SMBs in different environments and proposes various targeted optimization strategies.

Язык: Английский

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Co‐Free Layered Oxide Cathode Material with Stable Anionic Redox Reaction for Sodium‐Ion Batteries

Advanced Energy Materials, Год журнала: 2023, Номер 13(29)

Опубликована: Июнь 13, 2023

Abstract Co shows excellent performance in the high voltage range for layered oxide cathode materials sodium ion batteries (SIBs). However, its cost and toxicity are significant disadvantages.Co‐free cathodes with urgently needed development. Herein, cheap Mg Ti elements preferred to replace elements. A P2‐Na 0.67 Mn 0.53 Ni 0.30 0.085 O 2 (Ni30MgTi) a reversible specific capacity of 118 mA h g −1 at current density 50 2.0–4.25 V, which is even higher than that base sample Co. Moreover, raise median discharge from 3.21 3.59 raises energy 325 410 Wh kg . On other hand, ex situ XPS differential electrochemical mass spectrometry tests indicate Ni30MgTi has stable anionic redox reaction range. The concept bimetallic co‐substitution offers simple effective Co‐free strategy reduce increase simultaneously SIBs.

Язык: Английский

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