In situ modification of sulfur-based cathode electrolyte interphases for boosting zinc/graphite dual-ion batteries via vinylene carbonate additive and dipropylene glycol methyl ether/water mixed solvent

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00635750" target="_blank" >RIV/68378271:_____/25:00635750 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0366800" target="_blank" >https://hdl.handle.net/11104/0366800</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acssuschemeng.5c01897" target="_blank" >10.1021/acssuschemeng.5c01897</a>

Jazyk výsledku

angličtina

Název v původním jazyce

In situ modification of sulfur-based cathode electrolyte interphases for boosting zinc/graphite dual-ion batteries via vinylene carbonate additive and dipropylene glycol methyl ether/water mixed solvent

Popis výsledku v původním jazyce

Dual-ion batteries (DIBs) have been extensively explored due to their low material costs, high power density, and eco-friendly characteristics. However, the graphite cathode often leads to structural damage and instability at the electrode/electrolyte interface, severely diminishing its electrochemical performance. This work presents a cost-effective approach from the perspective of electrolyte optimization to overcome these challenges. By incorporating a moderate amount (5 wt %) of vinylene carbonate (VC) as an additive into a mixed solvent of dipropylene glycol methyl ether (DPM) and water, significant improvements in electrochemical performance are achieved, primarily due to the formation of a sulfur-rich cathode electrolyte interface (CEI) on the graphite surface and the electrolyte additive fostering the generation of nanosized sulfide particles in the graphite lattice, which provide active storage sites for anions. In the graphite-Zn DIB, a high discharge-specific capacity of 140 mAh g–1 was achieved at 100 mA g–1, and after 500 cycles, the capacity retention rate is 84.2%, which is much higher than that of the battery without VC. This work demonstrates the potential of a cost-effective electrolyte in optimizing the composition of the graphite cathode CEI and promoting the formation of inorganic nanoparticle hosts on the graphite cathode surface for enhancing the performance of DIBs.

Název v anglickém jazyce

In situ modification of sulfur-based cathode electrolyte interphases for boosting zinc/graphite dual-ion batteries via vinylene carbonate additive and dipropylene glycol methyl ether/water mixed solvent

Popis výsledku anglicky

Dual-ion batteries (DIBs) have been extensively explored due to their low material costs, high power density, and eco-friendly characteristics. However, the graphite cathode often leads to structural damage and instability at the electrode/electrolyte interface, severely diminishing its electrochemical performance. This work presents a cost-effective approach from the perspective of electrolyte optimization to overcome these challenges. By incorporating a moderate amount (5 wt %) of vinylene carbonate (VC) as an additive into a mixed solvent of dipropylene glycol methyl ether (DPM) and water, significant improvements in electrochemical performance are achieved, primarily due to the formation of a sulfur-rich cathode electrolyte interface (CEI) on the graphite surface and the electrolyte additive fostering the generation of nanosized sulfide particles in the graphite lattice, which provide active storage sites for anions. In the graphite-Zn DIB, a high discharge-specific capacity of 140 mAh g–1 was achieved at 100 mA g–1, and after 500 cycles, the capacity retention rate is 84.2%, which is much higher than that of the battery without VC. This work demonstrates the potential of a cost-effective electrolyte in optimizing the composition of the graphite cathode CEI and promoting the formation of inorganic nanoparticle hosts on the graphite cathode surface for enhancing the performance of DIBs.

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

ACS Sustainable Chemistry & Engineering

ISSN

2168-0485

e-ISSN

2168-0485

Svazek periodika

13

Číslo periodika v rámci svazku

22

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

8363-8372

Kód UT WoS článku

001497481300001

EID výsledku v databázi Scopus

2-s2.0-105005953473