Outstanding capacity assimilated from lithium-rich manganese nickel oxide flexible cathode material relies on CNT-wrapped carbon fibers for flexible lithium-ion batteries

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927510" target="_blank" >RIV/60461373:22310/23:43927510 - isvavai.cz</a>

Result on the web

<a href="https://pubs.rsc.org/en/content/articlehtml/2023/ta/d3ta01209c" target="_blank" >https://pubs.rsc.org/en/content/articlehtml/2023/ta/d3ta01209c</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/D3TA01209C" target="_blank" >10.1039/D3TA01209C</a>

Result language

angličtina

Original language name

Outstanding capacity assimilated from lithium-rich manganese nickel oxide flexible cathode material relies on CNT-wrapped carbon fibers for flexible lithium-ion batteries

Original language description

The extraction of two Li-ions per formula unit from the Li-rich cathode materials is still far from reality due to the intense structural changes that occur in this type of material after some initial cycles. Here, we expound on Ni incorporation in Li2MnO3 cathode materials and their assimilation onto the CVD-grown 3D vertical CNT-wrapped carbon fibrils without disturbing their rudimentary structural features to procure high capacity and striking rate capabilities. The 3D morphological topographies of the Li-rich Li2(Mn1−xNix)O3−δ (LRMNO) cathode material have been disclosed by high-resolution SEM and STEM analysis. When cycled within a voltage range of 3.5-4.9 V, the spray-coated 3D LRMNO wrapped on the surface of CNT (LRMNO@CNT-CC) exhibits a high capacity of up to 208 mA h g−1 (after 10 initial cycles) at 1C rate and a surprising capacity retention of 91% after 200 cycles and 71% after 1000 cycles. The well-defined redox peaks that occur within the voltage range of 3.8-4.2 V and 4.6-4.9 V in the cyclic voltammetric curves and the differential capacity plot establish the strong structural elasticity of the sample with two Li+ extraction processes during a single charge-discharge cycle. The full Li flexible pouch cell batteries with spray-coated Mn3O4 nanoparticles on carbon fabrics as the anode material also exhibit superior electrochemical performances of 3D-flexible LRMNO@CNT-CC cathode materials. The careful Ni incorporation, the uniform 3-dimensional framework of the CNT support, and the synergistic interaction between the highly graphitised CNTs and the LRMNO nanoparticles highlight the extremely structurally sensitive Li2MnO3 cathode material to facilitate stable electrochemical performances and achieve sustainability

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

<a href="/en/project/LL2101" target="_blank" >LL2101: Next Generation of 2D Monoelemental Materials</a><br>

Continuities

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

Publication year

2023

Confidentiality

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

Name of the periodical

Journal of Materials Chemistry A

ISSN

2050-7488

e-ISSN

2050-7496

Volume of the periodical

11

Issue of the periodical within the volume

33

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

"17671 "- 17685

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85168844819