Data · dataset · 2026
Surface-Anchored CoSn/Sn@NC Enabling Dual-Scale Spatial Confinement for Boosted Kinetics and Durable SiO Anodes
Listed in ScienceDB
SiO is a promising anode candidate for next-generation lithium-ion batteries, yet its commercialization is impeded by intrinsically sluggish charge transport and severe particle pulverization induced by substantial volume fluctuations.
Description
Herein, we report a dual-scale confinement paradigm featuring surface-anchored CoSn/Sn alloys encapsulated in nitrogen-doped carbon (CoSn/Sn@NC), synthesized via the in-situ growth of CoSn-based metal-organic frameworks (MOFs) on SiO surfaces followed by high-temperature pyrolysis.
In this architecture, CoSn/Sn nanocrystals are nanoscale-confined within robust MOF-derived NC cages to prevent agglomeration and preserve electrical conductivity, while the resulting CoSn/Sn@NC units are firmly anchored onto macroscopic SiO particles. In this dual-scale design, the anchored NC cages serve as surface buffers for mechanical stress redistribution and volumetric strain accommodation, while the CoSn/Sn@NC units provide conductive bridges for accelerated electron/Li+ transport.
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Benefiting from this dual-scale architecture, the optimized electrode exhibits a high reversible capacity of 1348.55 mAh g-1 at 0.1 A g-1, a superior rate capability (615.51 mAh g-1 at 5 A g-1), and excellent long-term cycling stability with a capacity retention of 817.87 mAh g-1 after 800 cycles at 0.5 A g-1. This general strategy, leveraging the synergy of surface anchoring and nanoscale confinement, offers a powerful solution to the capacity-kinetics dilemma in high-capacity anodes, holding great promise for practical high-energy battery applications.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.0138c ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Chemical engineering 70%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.0138c | 3 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:4004 | enrichment · scidb cn | taxonomy-embedding@1.0.0 | title+keywords+description (70%) |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license_text | source · scidb cn | connector:scidb_cn@1.0.0 | |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |