Two-dimensional layered chromium selenophosphate: advanced high-performance anode material for lithium-ion batteries

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Two-dimensional layered chromium selenophosphate: advanced high-performance anode material for lithium-ion batteries

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Two-dimensional layered chromium selenophosphate: advanced high-performance anode material for lithium-ion batteries

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

2D MATERIALS

ISSN

2053-1583

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

nestrankovano

Kód UT WoS článku

000862117100001

EID výsledku v databázi Scopus

2-s2.0-85139673159