Towards sustainable energy storage of new low-cost aluminum batteries from fundamental study to industrial applications

Journal of Power Sources, Год журнала: 2025, Номер 630, С. 236168 - 236168

Опубликована: Янв. 6, 2025

Язык: Английский

Pitch‐Derived Carbon‐Coated Hierarchical Porous Microspheres Constituted of Zeolitic Imidazolate Framework‐8 Derived Hollow N‐doped Carbon Nanocages and Si Nanospheres for High‐Performance Li–Ion Battery Anodes

Small Structures, Год журнала: 2025, Номер unknown

Опубликована: Апрель 18, 2025

In this study, an innovative spray‐drying‐based approach for the design and synthesis of 3D hierarchical porous microspheres comprised Si nanospheres zeolitic imidazolate framework‐8 (ZIF‐8)‐derived hollow N‐doped carbon nanocages is presented. This sophisticated Si‐based carbonaceous framework characterized by cages, which can reinforce electrical conductivity nanosphere, facilitate electrolyte penetration into nanostructure, effectively alleviate volume changes that occur during cycling. Notably, pitch‐derived coated evenly on surface framework, generating a conformal coating encapsulate nanoparticles. The prepared composite microsphere conductive network to nanoparticles are distributed, play role powerful mixed ion electron conductor, highly enhancing electrochemical properties when applied as anodes in lithium–ion batteries. exhibit high structural robustness 500 charge–discharge cycles cycled at 1.0 A g −1 . To validate practicability, blended with graphite preparation anode coupled Li(Ni 0.8 Co 0.1 Mn )O 2 (NCM811) prepare full cell, ≈91% capacity retention after 100 0.5 C.

Язык: Английский

Antisolvent spraying strategy for synthesizing spherical micro silicon-cyclized polyacrylonitrile composites to boot initial coulombic efficiency and ultra-high capacity in lithium-ion batteries

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 158583 - 158583

Опубликована: Дек. 1, 2024

Язык: Английский