Densified MoS2/Ti3C2 films with balanced porosity for ultrahigh volumetric capacity sodium-ion battery

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F21%3A63526417" target="_blank" >RIV/70883521:28610/21:63526417 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1385894720336032" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1385894720336032</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2020.127479" target="_blank" >10.1016/j.cej.2020.127479</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Densified MoS2/Ti3C2 films with balanced porosity for ultrahigh volumetric capacity sodium-ion battery

Popis výsledku v původním jazyce

Developing high volumetric energy density sodium-ion batteries (SIBs) is indispensable for catering to the miniaturization and flexibility of various consumer electronics. Herein, we have reported the flexible and compact MoS2/Ti3C2 hybrid films with balanced porosity, where the few-layered MoS2 nanosheets are parallelly intercalated into the Ti3C2 interlayer space in virtue of strong electrostatic effect and difference in their sizes. The hybrid films have been stabilized by the two-dimensional (2D) confinement effect and the Ti-S-Mo bonds with a high density of ~2.9 g cm−3. Furthermore, the dual 2D compounds intrinsically possess satisfied ions conductivity, and meanwhile give rapid electrons transfer after assembling such superstructure. When directly used as SIB anode, the MoS2/Ti3C2 hybrid films deliver an exceptional volumetric specific capacity of 1510 mAh cm−3 at 0.28 mA cm−2 and 650 mAh cm−3 at 14 mA cm−2. The specific capacity remains unchanged after 300 cycles at 1.4 mA cm−2. More significantly, the areal specific capacity shows a linear relationship with the increase of film thickness from 9.6 to 43.1 μm without sacrificing the volumetric capacity. © 2020 Elsevier B.V.

Název v anglickém jazyce

Densified MoS2/Ti3C2 films with balanced porosity for ultrahigh volumetric capacity sodium-ion battery

Popis výsledku anglicky

Developing high volumetric energy density sodium-ion batteries (SIBs) is indispensable for catering to the miniaturization and flexibility of various consumer electronics. Herein, we have reported the flexible and compact MoS2/Ti3C2 hybrid films with balanced porosity, where the few-layered MoS2 nanosheets are parallelly intercalated into the Ti3C2 interlayer space in virtue of strong electrostatic effect and difference in their sizes. The hybrid films have been stabilized by the two-dimensional (2D) confinement effect and the Ti-S-Mo bonds with a high density of ~2.9 g cm−3. Furthermore, the dual 2D compounds intrinsically possess satisfied ions conductivity, and meanwhile give rapid electrons transfer after assembling such superstructure. When directly used as SIB anode, the MoS2/Ti3C2 hybrid films deliver an exceptional volumetric specific capacity of 1510 mAh cm−3 at 0.28 mA cm−2 and 650 mAh cm−3 at 14 mA cm−2. The specific capacity remains unchanged after 300 cycles at 1.4 mA cm−2. More significantly, the areal specific capacity shows a linear relationship with the increase of film thickness from 9.6 to 43.1 μm without sacrificing the volumetric capacity. © 2020 Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

—

Svazek periodika

Neuveden

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

—

Kód UT WoS článku

000638236800001

EID výsledku v databázi Scopus

2-s2.0-85095596593