Zero-Strain High-Capacity Silicon/Carbon Anode Enabled by a MOF-Derived Space-Confined Single-Atom Catalytic Strategy for Lithium-Ion Batteries

Zero-Strain High-Capacity Silicon/Carbon Anode Enabled by a MOF-Derived Space-Confined Single-Atom Catalytic Strategy for Lithium-Ion Batteries

© 2022 Wiley-VCH GmbH.

Détails bibliographiques
Publié dans:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 21 vom: 15. Mai, Seite e2200894
Auteur principal: Chen, Bingjie (Auteur)
Autres auteurs: Chen, Lu, Zu, Lianhai, Feng, Yutong, Su, Qingmei, Zhang, Chi, Yang, Jinhu
Format: Article en ligne
Langue:English
Publié: 2022
Accès à la collection:Advanced materials (Deerfield Beach, Fla.)
Sujets:Journal Article lithium ion batteries silicon single-atom catalysis structural stability zero strain
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520 |a Developing zero-strain electrode materials with high capacity is crucial for lithium-ion batteries (LIBs). Here, a new zero-strain composite material made of ultrasmall Si nanodots (NDs) within metal organic framework-derived nanoreactors (Si NDs⊂MDN) through a novel space-confined catalytic strategy is reported. The unique Si NDs⊂MDN anode features a low strain (<3%) and a high theoretical lithium storage capacity (1524 mAh g-1 ) which far surpasses the traditional single-crystal counterparts that suffer from a low capacity delivery. The zero-strain property is evidenced by substantial characterizations including ex/in situ transmission electron microscopy and mechanical simulations. The Si NDs⊂MDN exhibits superior cycling stability and high reversible capacity (1327 mAh g-1 at 0.1 A g-1 after 100 cycles) in half-cells and high energy density (366 Wh kg-1 after 300 cycles) in a full cell. This study reports a new catalog of zero-strain electrode material with significantly improved capacity beyond the traditional single-crystal zero-strain materials 
650 4 |a Journal Article 
650 4 |a lithium ion batteries 
650 4 |a silicon 
650 4 |a single-atom catalysis 
650 4 |a structural stability 
650 4 |a zero strain 
700 1 |a Chen, Lu  |e verfasserin  |4 aut 
700 1 |a Zu, Lianhai  |e verfasserin  |4 aut 
700 1 |a Feng, Yutong  |e verfasserin  |4 aut 
700 1 |a Su, Qingmei  |e verfasserin  |4 aut 
700 1 |a Zhang, Chi  |e verfasserin  |4 aut 
700 1 |a Yang, Jinhu  |e verfasserin  |4 aut 
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773 1 8 |g volume:34  |g year:2022  |g number:21  |g day:15  |g month:05  |g pages:e2200894 
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