ALD Al2O3-Coated TiO2 Nanotube Layers as Anodes for Lithium-Ion Batteries

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39911224" target="_blank" >RIV/00216275:25310/17:39911224 - isvavai.cz</a>

Result on the web

<a href="https://pubs.acs.org/doi/10.1021/acsomega.7b00463" target="_blank" >https://pubs.acs.org/doi/10.1021/acsomega.7b00463</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsomega.7b00463" target="_blank" >10.1021/acsomega.7b00463</a>

Result language

angličtina

Original language name

ALD Al2O3-Coated TiO2 Nanotube Layers as Anodes for Lithium-Ion Batteries

Original language description

The utilization of the anodic TiO2 nanotube layers, with uniform Al2O3 coatings of different thicknesses (prepared by atomic layer deposition, ALD), as the new electrode material for lithium-ion batteries (LIBs), is reported herein. Electrodes with very thin Al2O3 coatings (similar to 1 nm) show a superior electrochemical performance for use in LIBs compared to that of the uncoated TiO2 nanotube layers. A more than 2 times higher areal capacity is received on these coated TiO2 nanotube layers (similar to 75 vs 200 mu Ah/cm(2)) as well as higher rate capability and coulombic efficiency of the charging and discharging reactions. Reasons for this can be attributed to an increased mechanical stability of the TiO2 nanotube layers upon Al2O3 coating, as well as to an enhanced diffusion of the Li+ ions within the coated nanotube layers. In contrast, thicker ALD Al2O3 coatings result in a blocking of the electrode surface and therefore an areal capacity decrease.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

21001 - Nano-materials (production and properties)

Project

<a href="/en/project/LM2015082" target="_blank" >LM2015082: Center of Materials and Nanotechnologies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ACS Omega

ISSN

2470-1343

e-ISSN

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Volume of the periodical

2

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

2749-2756

UT code for WoS article

000406385100043

EID of the result in the Scopus database

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