Electrochemical Behavior of Rechargeable Al-Ni Battery Systems in Concentrated [EMIm]Cl-AlCl3Electrolyte

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924176" target="_blank" >RIV/60461373:22310/22:43924176 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/full/10.1021/acsaem.2c00403" target="_blank" >https://pubs.acs.org/doi/full/10.1021/acsaem.2c00403</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsaem.2c00403" target="_blank" >10.1021/acsaem.2c00403</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrochemical Behavior of Rechargeable Al-Ni Battery Systems in Concentrated [EMIm]Cl-AlCl3Electrolyte

Popis výsledku v původním jazyce

In this work, the electrochemical behavior of the Al-Ni battery system in electrolyte composed of aluminum chloride (AlCl3) and 1-ethyl-3-methylimidazolium chloride ([EMIm]Cl) with a molar ratio of 1.3 is investigated. The results reveal that the reversible capacity, which is based on the de/alloying process of Al on a Ni cathode, can be triggered only once the Ni electrode has been chlorinated. The value of reversible capacity is related to the chlorination degree of the nickel electrode. However, because the produced nickel chloride is soluble in the [EMIm]Cl-based electrolyte, the dissolved Ni2+can migrate to the Al anode side and spontaneously react with the Al electrode, causing the battery to fail drastically. To safeguard the Al anode, an interlayer composed of Al powder is inserted between the separators to react with the dissolved Ni ions. The upgraded Al-Ni battery system can provide significantly improved performance, with cycling stability increasing from 84 to over 580 cycles in an 8 min controlled galvanostatic charge procedure. © 2022 American Chemical Society. All rights reserved.

Název v anglickém jazyce

Electrochemical Behavior of Rechargeable Al-Ni Battery Systems in Concentrated [EMIm]Cl-AlCl3Electrolyte

Popis výsledku anglicky

In this work, the electrochemical behavior of the Al-Ni battery system in electrolyte composed of aluminum chloride (AlCl3) and 1-ethyl-3-methylimidazolium chloride ([EMIm]Cl) with a molar ratio of 1.3 is investigated. The results reveal that the reversible capacity, which is based on the de/alloying process of Al on a Ni cathode, can be triggered only once the Ni electrode has been chlorinated. The value of reversible capacity is related to the chlorination degree of the nickel electrode. However, because the produced nickel chloride is soluble in the [EMIm]Cl-based electrolyte, the dissolved Ni2+can migrate to the Al anode side and spontaneously react with the Al electrode, causing the battery to fail drastically. To safeguard the Al anode, an interlayer composed of Al powder is inserted between the separators to react with the dissolved Ni ions. The upgraded Al-Ni battery system can provide significantly improved performance, with cycling stability increasing from 84 to over 580 cycles in an 8 min controlled galvanostatic charge procedure. © 2022 American Chemical Society. All rights reserved.

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

<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

2022

Kód důvěrnosti údajů

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

Název periodika

ACS Applied Energy Materials

ISSN

2574-0962

e-ISSN

—

Svazek periodika

5

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

6797-6804

Kód UT WoS článku

000820442700001

EID výsledku v databázi Scopus

2-s2.0-85133373333