A High-Performance Magnesium Triflate-based Electrolyte for Rechargeable Magnesium Batteries

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43920454" target="_blank" >RIV/60461373:22310/21:43920454 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2666386420302873" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2666386420302873</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.xcrp.2020.100265" target="_blank" >10.1016/j.xcrp.2020.100265</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A High-Performance Magnesium Triflate-based Electrolyte for Rechargeable Magnesium Batteries

Popis výsledku v původním jazyce

The quest for a suitable electrolyte formulation is pivotal to the suc-cess of rechargeable magnesium batteries. A simple conventionalelectrolyte having high compatibility with magnesium anode andcathodematerialisingreatdemand. Herein, we report a simpleyet effective electrolyte formulation, comprising magnesium triflate(Mg(OTf)2) and magnesium chloride in monoglyme, that can enablehighly reversible, conditioning-free, and homogeneous magnesiumdeposition. Galvanostatic Mg plating/stripping demonstrates anaverage Coulombic efficiency of99.4% over 1,000 cycles. The cellsshow excellent performance at current densities up to 3 mA cm2and areal capacities up to 5 mAh cm2.Postmortemanalysis unveilsthe formation of a robust solid electrolyte interphase, which leads toimproved kinetics at the magnesium electrode. A prototype Mgbattery with Mo6S8cathode demonstrates stable cycling perfor-mance over 100 cycles. This study shows that rational design ofMg(OTf)2-based electrolytes is a promising direction toward therealization of high-performance magnesium batteries.

Název v anglickém jazyce

A High-Performance Magnesium Triflate-based Electrolyte for Rechargeable Magnesium Batteries

Popis výsledku anglicky

The quest for a suitable electrolyte formulation is pivotal to the suc-cess of rechargeable magnesium batteries. A simple conventionalelectrolyte having high compatibility with magnesium anode andcathodematerialisingreatdemand. Herein, we report a simpleyet effective electrolyte formulation, comprising magnesium triflate(Mg(OTf)2) and magnesium chloride in monoglyme, that can enablehighly reversible, conditioning-free, and homogeneous magnesiumdeposition. Galvanostatic Mg plating/stripping demonstrates anaverage Coulombic efficiency of99.4% over 1,000 cycles. The cellsshow excellent performance at current densities up to 3 mA cm2and areal capacities up to 5 mAh cm2.Postmortemanalysis unveilsthe formation of a robust solid electrolyte interphase, which leads toimproved kinetics at the magnesium electrode. A prototype Mgbattery with Mo6S8cathode demonstrates stable cycling perfor-mance over 100 cycles. This study shows that rational design ofMg(OTf)2-based electrolytes is a promising direction toward therealization of high-performance magnesium batteries.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GC20-16124J" target="_blank" >GC20-16124J: Dvojdimenzionální vrstevnaté dichalkogenidy přechodných kovů / nanostrukturované uhlíkové kompozity pro aplikace na elektrochemické uchovávání energie</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Cell Reports Physical Science

ISSN

2666-3864

e-ISSN

—

Svazek periodika

1

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

24

Strana od-do

100265

Kód UT WoS článku

000658758300009

EID výsledku v databázi Scopus

2-s2.0-85100595974