Two-dimensional layered chromium selenophosphate: advanced high-performance anode material for lithium-ion batteries
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924195" target="_blank" >RIV/60461373:22310/22:43924195 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/2053-1583/ac9240/meta" target="_blank" >https://iopscience.iop.org/article/10.1088/2053-1583/ac9240/meta</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/2053-1583/ac9240" target="_blank" >10.1088/2053-1583/ac9240</a>
Alternative languages
Result language
angličtina
Original language name
Two-dimensional layered chromium selenophosphate: advanced high-performance anode material for lithium-ion batteries
Original language description
The demands of the energy storage market for better performing lithium-ion batteries (LIBs) are enormous and ever-increasing. Following this trend, new electrode materials with higher energy and power densities should be developed to reach the electrode requirements of next-generation batteries. With this in mind, we present a novel composite (CrPSe3-G-MWCNT@NiB) that combines diverse characteristics of the excellent Li storage properties of 2D layered chromium selenophosphate (CrPSe3), the high conductivity and specific surface area of carbon-based materials [graphite (G) and multi-walled carbon nanotubes (MWCNTs)], and the abundant coordinative unsaturated sites of Ni-B nanoflakes. The composites were synthesized via a process involving three stages: (a) a one-step high-temperature solid-phase 2D CrPSe3 preparation, (b) high-energy ball milling integration with the carbon materials, and (c) a fast interface chemical reduction coating with the Ni-B nanoflakes. It is demonstrated that the optimized CrPSe3-G-MWCNT@NiB composites exhibit a remarkable electrochemical response in lithium half-cells, delivering around 657 mAh g(-1) after 200 cycles, as well as a significantly longer cycle life, higher rate capability and lower charge/discharge polarization in comparison with the bulk CrPSe3. Galvanostatic studies also revealed that the CrPSe3-G-MWCNTs@NiB electrode displays a remarkable electrochemical property, which enable its application in lithium full cells, with a capacity of 123 mAh g(cathode) (-1) after 40 cycles and a high Coulombic efficiency (over 99.1%). Thus, the integration of the carbon materials and Ni-B nanoflakes into the presented composite makes it a particularly promising candidate anode for use in high performance LIBs.
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
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
2D MATERIALS
ISSN
2053-1583
e-ISSN
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Volume of the periodical
9
Issue of the periodical within the volume
4
Country of publishing house
GB - UNITED KINGDOM
Number of pages
14
Pages from-to
nestrankovano
UT code for WoS article
000862117100001
EID of the result in the Scopus database
2-s2.0-85139673159