.png){kind=icon}
.png){kind=icon}
Return
Synergistic rigid-flexible Sn NPs@rGO freestanding films enabling high-rate and ultra-stable Li-ion batteries
.png){kind=icon}
PRE
AI
G
H
Z
Z
Z
L
DOI：10.1016/j.jelechem.2026.120024.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
To meet the escalating demand for wearable and smart electronics, flexible lithium-ion batteries are required to synergistically integrate high energy density with robust mechanical durability. Inspired by the architecture of seashells, we propose a scalable self-assembly/autonomous delamination strategy to fabricate rigid-flexible composite anodes consisting of ultrafine tin nanoparticles (Sn NPs) embedded between reduced graphene oxide films (Sn NPs@rGO). During synthesis, Sn2+ ions are electrostatically adsorbed on GO sheets, enabling the confined in-situ growth of ultrafine Sn nanocrystals (< 20 nm) and simultaneously constructs a conductive rGO network through low-temperature reduction. The formed strong SnOC covalent bonds and interfacial coupling effectively inhibit Sn agglomeration and alleviate volume variation, thereby stabilizing the electrode/electrolyte interface and facilitating rapid charge transfer. Consequently, the optimized electrode delivers a high specific capacity of 682.8 mAh g(-1), outstanding rate capability (380.1 mAh g(-1) at 5.0 A g(-1)), and long-term cycling stability with 80% capacity retention over 400 cycles. This bio-inspired rigid-flexible design synergistically integrates high energy density and mechanical adaptability, presenting a promising pathway toward advanced flexible electrodes.
Keywords:
Tin anode
Ultrafine nanocrystals
Rigid-flexible anodes
lithium-ion batteries
Freestanding
Journal
IF:
4.1
Papers:
1.7W
Citations:
4.0W
Organization
Cited Papers