Simultaneously Enhanced Low Temperature Li+ Transport Kinetics and Crystal Stability of Nb1.94Mo0.06O5@C Anode Induced by Distorted NbO6 Octahedron DOI
Guan Wang, Guixin Wang,

Haotian Dong

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 29, 2024

Abstract The electrochemical performances of lithium‐ion batteries (LIBs) will be significantly degraded under low‐temperature conditions, which restricts their wide application in cold environments. Herein, the transport kinetics a novel Nb 1.94 Mo 0.06 O 5 @C nanocomposite anode is accelerated greatly via engineering microstructure and NbO 6 octahedron. detailed crystallographic features are characterized by using synchrotron radiation, spherical electron microscope, density functional theory simulation methods. Both experimental analysis suggest that 6+ preferentially replaces 5+ regular octahedral location distorts octahedron, resulting widened c ‐axis spacing lowered ion diffusion barrier. Coupled with enhanced electronic conductivity derived from surface carbon layer, exhibits an charge transfer process, improved Li + kinetics, pronounced pseudo‐capacitance excellent low temperature capacity. Furthermore, situ X‐ray diffraction ex microscope elucidate structural evolution highly reversible, unveiling its cycling stability. full cell assembled LiNi 0.6 Co 0.2 Mn 2 cathode demonstrates practicality. This study reveals critical role distorting octahedron expanding crystal facilitating rapid enhancing storage performance at temperatures.

Язык: Английский

Prussian Blue and Its Analogues for Commercializing Fast-Charging Sodium/Potassium-Ion Batteries DOI Creative Commons

Ping Hong,

Changfan Xu, Chengzhan Yan

и другие.

ACS Energy Letters, Год журнала: 2025, Номер unknown, С. 750 - 778

Опубликована: Янв. 13, 2025

Fast-charging technology, which reduces charging time and enhances convenience, is attracting attention. Sodium-ion batteries (SIBs) potassium-ion (PIBs) are emerging as viable alternatives to lithium-ion (LIBs) due their abundant resources low cost. However, during fast discharging, the crystal structures of cathode materials in SIBs/PIBs can be damaged, negatively impacting performance, lifespan, capacity. To address this, there a need explore electrode with ultrahigh rate capabilities. Prussian Blue its analogues (PB PBAs) have shown great potential for both SIBs PIBs unique excellent electrochemical properties. This Review examines use PBAs PIBs, focusing on fast-charging (rate) performance commercialization potential. Through systematic analysis discussion, we hope provide practical guidance developing contributing advancement widespread adoption green energy technologies.

Язык: Английский

Процитировано

5
Chromium-doped tunnel-structured VO2(B) nanorods as high-capacity and stable cathode materials for aqueous zinc-ion batteries DOI
Xiaohong Chen,

Xuezhen Zhai,

Yongqi Wu

и другие.

Journal of Energy Storage, Год журнала: 2025, Номер 114, С. 115826 - 115826

Опубликована: Фев. 14, 2025

Язык: Английский

Процитировано

2
The emerging high-entropy cathode materials for advanced Na-ion batteries: advances and perspectives DOI
Peiyu Hou, Maosheng Gong,

Mohan Dong

и другие.

Energy storage materials, Год журнала: 2024, Номер 72, С. 103750 - 103750

Опубликована: Авг. 26, 2024

Язык: Английский

Процитировано

12
Suppressing fluorine loss of KVPO4F by surface chromium substitution for high-efficiency potassium-ion batteries DOI

H. Liu,

Jianzhi Xu, Yifan Xu

и другие.

Energy storage materials, Год журнала: 2025, Номер 75, С. 104017 - 104017

Опубликована: Янв. 7, 2025

Язык: Английский

Процитировано

1
A MXene modification strategy of Prussian blue cathodes toward a stable cathode electrolyte interphase and suppressed Mn dissolution DOI

Zerui Chen,

Yingxinjie Wang,

Jie Wang

и другие.

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159519 - 159519

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

1
Nitrogen and Sulfur-Codoped Carbon Nanotube-Encapsulated Co9S8 Nanoparticles for Efficient Lithium/Potassium Storage DOI

Yali Lu,

Yu Ma,

Huanyu Liang

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(9), С. 14036 - 14046

Опубликована: Фев. 20, 2025

Carbon materials stand out as anode in both lithium-ion batteries and potassium-ion they are capable of sustaining stable electrochemical cycles, yet limited reversible capacities hinder their further development for practical applications. In this work, carbon rationally designed to integrate with metal sulfides, resulting a structure metal-catalyzed nitrogen sulfur-codoped nanotube-encapsulated Co9S8 nanoparticles. Synthesized by sequential chemical vapor deposition sulfidation process, hybrid exhibits high lithium potassium storage while maintaining long cycling stability. As lithium-ion/potassium-ion battery anode, the delivers specific capacity (808/429 mA h g-1 at 0.1 A g-1), great rate performance (437/145 10 excellent cyclability. Furthermore, capacitor utilizing can attain substantial energy density elevated power (89 W kg-1/136 kg-1 4750 kg-1/1280 kg-1) simultaneously. Detailed kinetic analyses show that originates from synergistic effect functional certain ratio. This work may provide useful insights application carbon-based anodes chemically integrated sulfides storage.

Язык: Английский

Процитировано

1
Compensating K Ions Through an Organic Salt in Electrolytes for Practical K‐Ion Batteries DOI

Wenwen Wang,

Gang Wu, Pai Wang

и другие.

Angewandte Chemie, Год журнала: 2025, Номер unknown

Опубликована: Март 7, 2025

Abstract K‐ion batteries face significant challenges due to a severe shortage of active K ions, with cathode materials typically containing less than 70% ions and first‐cycle irreversible reactions consuming up 20% more. Conventional compensation methods fail supply sufficient without compromising cell integrity. To address this, we introduce potassium sulfocyanate (KSCN) as an electrolyte additive capable delivering 100% ions. During initial charging, KSCN undergoes oxidative decomposition at 3.6 V, releasing forming the cosolvent thiocyanogen ((SCN) 2 ). This molecule, meeting diverse electrochemical properties, was identified using unsupervised machine learning cheminformatics. The approach demonstrated full conversion excellent compatibility all components. presence (SCN) enhanced rate capability anodes by promoting desolvation. In hard carbon|K 0.5 Mg 0.15 [Mn 0.8 0.05 ]O pouch cell, this tripled capacity through supplying 58% showcasing practical solution for in batteries.

Язык: Английский

Процитировано

1
Mitigating Long Range Jahn‐Teller Ordering to Stabilize Mn Redox Reaction in Biphasic Layered Sodium Oxide DOI

Shihao Li,

Wei Zhou, Fangyan Liu

и другие.

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 31, 2024

Abstract To develop the next‐generation commercial oxide cathodes for sodium‐ion batteries, it is crucial to reduce expensive Ni element content, and further regulate redox reaction of cheap transition metal elements such as Mn elevate specific capacity. Nevertheless, activation (MRR) remains a challenge, notably, MRR induces pronounced Jahn‐Teller effect, resulting in severe structural distortion fast performance decay. Herein, activated by Na vacancies weakened hybridization O (2p)‐TM (3d‐t 2 g ) orbital, biphasic low‐Ni Mn‐based P2/O3‐Na 0.8 0.23 Fe 0.34 0.43 (P2/O3) exhibits reversible MRR, which performs between 4+ 3+ during charging discharging. Due interlaced arrangement P2‐type O3‐type crystal domains P2/O3, long range ordering restricted mitigate cooperative MnO6 octahedron induced effect suppressed, ensuring sustained stable involvement charge compensation. In addition, owing introduction phase, there significant reduction migration barrier sodium ions no obvious capacity decline after air exposure, leading marked enhancement dynamic stability respectively. Consequently, P2/O3 excellent electrochemical processing performance.

Язык: Английский

Процитировано

8
Multivalent Cation Incorporated into Manganese‐Iron Based NASICON Cathodes for High Voltage Sodium‐Ion Batteries DOI Open Access

Jingyao Zeng,

Jinqiang Gao,

Weishun Jian

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 9, 2024

Abstract Na 4 Mn 1.5 Fe (PO ) 2 P O 7 (NMFPP), with its low cost and high energy density, is essential for accelerating the commercialization of sodium‐ion batteries. However, practical application limited by serious voltage hysteresis detrimental Jahn‐Teller distortions. Herein, a operating superior stable Nb‐doped NMFPP fewer intrinsic anti‐site defects are elaborately designed reconstruction crystal lattice electronic distribution. By introducing higher charge density Nb─O bonds, lengths Mn‐O bonds shortened, enhancing stability. As result, volume contracted during + extraction/insertion decreased niobium‐modified (Mn 0.5 2.94 Nb 0.06 , mitigating distortion from effect increasing capacity retention after 1000 cycles 57.5% to 82.3%. More importantly, delayed 2+ involvement in redox reactions significantly reduced, raising average 3.32 3.64 V overall 13%. This study opens new avenues develop advanced battery cathode materials long calendar life storage.

Язык: Английский

Процитировано

7
Entropic Design of Anionic Site to Improve Anionic Redox Stability in Lithium‐Rich Cathode DOI
Chaoliang Zheng, Juan Zhang, Huican Mao

и другие.

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 12, 2024

Cobalt-free manganese-rich layered oxide is considered one of the most promising cathode materials for next-generation lithium-ion batteries due to its high capacity and low cost. However, irreversible anionic redox (OAR) leads serious failure problems hinders wide application. To solve above problems, entropy design strategy sites proposed, which more direct relevant regulation OAR process compared traditional TM sites. The entropic improves structural diversity long-range disorder material, effectively inhibits oxygen release drastic strain, alleviates degradation. After 400 cycles at 1C, voltage decay per cycle are only 0.092 mAh g

Язык: Английский

Процитировано

6