Superior 3D Conductive‐Binding Network Bulit by 1D–1D Interactions for Self‐Supported High‐Loading Electrodes DOI
Jiangbo Wu,

Changyu Yan,

Cuiping Li

и другие.

Advanced Sustainable Systems, Год журнала: 2025, Номер unknown

Опубликована: Май 16, 2025

Abstract Traditional slurry‐coated electrodes suffer from limitations such as low electrode energy density.This study proposes a self‐supporting composite construction strategy that simplifies the preparation process. A carbon nanotube (CNT) conductive network is in situ constructed on surface of lithium manganese oxide (LMO) by freeze‐drying, which has both support and ion transport functions. The unique characteristics 1D materials effectively avoid interlayer stacking effect 2D materials, reduce internal resistance, improve charge discharge performance. It worth noting active material content exceeds 90%, less required, thereby reducing costs. achieves an extremely high load up to 45 mg cm −2 specific capacity 125 mAh g −1 , giving full play LMO, so actual reaches 84.5% ideal capacity. Moreover, this process simpler more controllable than traditional slurry coating drying methods, can be produced large scale at cost, with strong practical application potential.

Язык: Английский

Interplay between organic solvent geometry and divalent cation dynamics in divalent metal batteries DOI Creative Commons

Nazifa Jahan Pranti,

Sharifa Faraezi, Tomonori Ohba

и другие.

RSC Advances, Год журнала: 2025, Номер 15(14), С. 10851 - 10860

Опубликована: Янв. 1, 2025

Elucidating the local structure and dynamic nature of divalent cations under different solvent geometries.

Язык: Английский

Процитировано

0
Interphasial Chemistry Design for Seamless Lithium Deposition in Anode‐Free Lithium Metal Batteries DOI
Xuan Song, Cheng Liu,

A. B. Zhang

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

Abstract Anode‐free lithium metal batteries (AFLMBs) are promising due to ultrahigh energy density, reduced manufacturing costs, and enhanced safety through active elimination. However, their practical implementation remains challenged by unstable electrode‐electrolyte interfaces the resulting rapid species depletion. Herein, an ultrathin ion‐conducting membrane (ICM) is designed, featuring uniformly distributed rigid benzenesulfonimide anionic groups flexible lithiophilic containing ether oxygen groups. The constrained anions enable exceptional charge separation spatial resistance, boosting lithium‐ion mobility, while integrated lithophilic network directs lateral deposition ionic nanochannels. This ICM layer effectively promotes enrichment of at interface constructs stable anion‐derived solid electrolyte interphases (SEI). Meanwhile, layers with electron‐insulating properties can further prevent side reactions, suppress dendritic Li growth acting as a natural shield, in seamless deposition. Specifically, Li||Cu coin cells achieve 99.82% Coulombic efficiency. AFLMBs assembled ICM‐coated copper foil (ICM Cu) NCM811 deliver density 495 Wh kg −1 80.72% capacity retention after 100 cycles. interphasial chemistry design strategy provides insights into precise interfacial engineering realize high‐performance, high‐safety battery systems facilitates development for applications.

Язык: Английский

Процитировано

0
Cation–Anion Regulation Engineering in a Flame-Retardant Electrolyte toward Safe Na-Ion Batteries with Appealing Stability DOI
Yi‐Hu Feng,

Chengye Lin,

Hui-Huan Qin

и другие.

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Great electrochemical stability and intrinsic safety are of critical significance in realizing large-scale applications Na-ion batteries (NIBs). Unfortunately, the notorious decomposition electrolyte undesirable side reactions on cathode-electrolyte interphase (CEI) pose major obstacles to practical implementation NIBs. Besides, flammability traditional carbonate-based electrolytes raises increasing concerns about batteries. Herein, a flame-retardant all-fluorinated is proposed achieve an anion-aggregated inner solvation shell by modulating cation-anion interactions through low-coordination number cosolvent. The more electrochemically antioxidant fluorinated solvents anion-dominated interfacial chemistry contribute construction both mechanically chemically stable F-rich CEI. Such thin, homogeneous effectively inhibits parasitic reaction, strengthens stability, enables fast Na+ diffusion kinetics interface. When employing this electrolyte, Na0.95Ni0.4Fe0.15Mn0.3Ti0.15O2 (NFMT) cathode delivers remarkable discharge capacity up 169.7 mAh g-1, with cycling at 1C for 500 cycles. Impressively, NFMT//hard carbon pouch cells such also steady operation 100 cycles 0.5C 86.8% remaining. This study offers reference developing high-performance electrolytes.

Язык: Английский

Процитировано

0
Superior 3D Conductive‐Binding Network Bulit by 1D–1D Interactions for Self‐Supported High‐Loading Electrodes DOI
Jiangbo Wu,

Changyu Yan,

Cuiping Li

и другие.

Advanced Sustainable Systems, Год журнала: 2025, Номер unknown

Опубликована: Май 16, 2025

Abstract Traditional slurry‐coated electrodes suffer from limitations such as low electrode energy density.This study proposes a self‐supporting composite construction strategy that simplifies the preparation process. A carbon nanotube (CNT) conductive network is in situ constructed on surface of lithium manganese oxide (LMO) by freeze‐drying, which has both support and ion transport functions. The unique characteristics 1D materials effectively avoid interlayer stacking effect 2D materials, reduce internal resistance, improve charge discharge performance. It worth noting active material content exceeds 90%, less required, thereby reducing costs. achieves an extremely high load up to 45 mg cm −2 specific capacity 125 mAh g −1 , giving full play LMO, so actual reaches 84.5% ideal capacity. Moreover, this process simpler more controllable than traditional slurry coating drying methods, can be produced large scale at cost, with strong practical application potential.

Язык: Английский

Процитировано

0