Biomass-Derived Stress-Regulating Additives for Microsilicon Anodes in Lithium-Ion Batteries
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F25%3A10258401" target="_blank" >RIV/61989100:27640/25:10258401 - isvavai.cz</a>
Result on the web
<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/batt.202500185?getft_integrator=scopus&src=getftr&utm_source=scopus" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/batt.202500185?getft_integrator=scopus&src=getftr&utm_source=scopus</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/batt.202500185" target="_blank" >10.1002/batt.202500185</a>
Alternative languages
Result language
angličtina
Original language name
Biomass-Derived Stress-Regulating Additives for Microsilicon Anodes in Lithium-Ion Batteries
Original language description
Microsilicon (mu Si) anode, with an ultrahigh capacity of 3579 mAh g-1, presents less interfacial side reactions and lower production costs compared to nanosilicon, making it a promising candidate for lithium-ion batteries. However, the severe local stress produced upon repeated lithium insertion and extraction causes structural deterioration, significantly reducing the cycling stability of mu Si anodes. Here, biomass-derived carbon microtubes are introduced into mu Si electrodes as elasticity mediators to alleviate the stress generated during electrode cycling. After carbonization at a moderate temperature of 370 degrees C, the carbon tube walls retain some organic ingredients and exhibit impressive elasticity and resilience, which can effectively alleviate the volume expansion of mu Si particles and prevent pulverization of the electrode. In addition, the large inner diameter of the carbon tube provides additional space to compensate for the volume expansion of microsized silicon. The mu Si anode with carbon microtubes additives delivers an enhanced capacity of 1047 mAh g-1 after 200 cycles at a high current density of 2 A g-1. These results indicate that carbon microtubes are efficient stress-regulating additives for mu Si anodes, and further research may extend their application to other high-capacity alloy anodes, such as SiOx, phosphorus-based, and tin-based anodes.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20500 - Materials engineering
Result continuities
Project
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Continuities
O - Projekt operacniho programu
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Batteries & Supercaps
ISSN
2566-6223
e-ISSN
2566-6223
Volume of the periodical
8
Issue of the periodical within the volume
11
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
"nestrankovano"
UT code for WoS article
001466630600001
EID of the result in the Scopus database
2-s2.0-105002605814