Performance improvements for the all-copper redox flow battery: Membranes, electrodes, and electrolytes

Wouter Dirk Badenhorst; Kuldeep Kuldeep; Laura Sanz; Catia Arbizzani; Lasse Murtomäki

doi:10.1016/j.egyr.2022.06.075

Performance improvements for the all-copper redox flow battery: Membranes, electrodes, and electrolytes

Wouter Dirk Badenhorst, Kuldeep, Laura Sanz, Catia Arbizzani, Lasse Murtomäki^*

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

5 Sitaatiot (Scopus)

23 Lataukset (Pure)

Abstrakti

The ever-increasing demand for renewable energy storage has led to the development of many energy storage systems, such as redox flow batteries (RFBs), including vanadium, iron–chromium, and the copper redox flow battery (CuRFB). A multitude of materials and electrolytes have been investigated to improve the performance of the CuRFB using an in-house manufactured cell. Using carbon ink coatings for the negative electrode and modern ion exchange membranes (IEMs), this version of the CuRFB was improved to current efficiencies above 95% with high voltage efficiencies of up to 81%, thereby improving energy efficiency by nearly 9% over the previous state of the art at 20 mA cm ⁻². Additionally, the operating time of the CuRFB was significantly extended over 210 h of operation (50 cycles), 32% of the capacity remaining, without maintenance. Finally, stability of the new system with modern IEMs was proven by operation for over 1200 h operation, with over 300 charge and discharge cycles performed.

Alkuperäiskieli	Englanti
Sivut	8690-8700
Sivumäärä	11
Julkaisu	Energy Reports
Vuosikerta	8
Varhainen verkossa julkaisun päivämäärä	4 heinäk. 2022
DOI - pysyväislinkit	https://doi.org/10.1016/j.egyr.2022.06.075
Tila	Julkaistu - marrask. 2022
OKM-julkaisutyyppi	A1 Julkaistu artikkeli, soviteltu

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10.1016/j.egyr.2022.06.075Lisenssi: CC BY-NC-ND

1-s2.0-S2352484722012136-mainFinal published version, 3,8 MBLisenssi: CC BY-NC-ND

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1 Aktiivinen

CUBER: Copper-Based Flow Batteries for energy storage renewables integration
Murtomäki, L. & Badenhorst, W.
01/01/2020 → 31/12/2023
Projekti: EU: Framework programmes funding

Research Reports on Energy from Aalto University Provide New Insights (Performance improvements for the all-copper redox flow battery: Membranes, electrodes, and electrolytes)
Lasse Murtomäki
08/11/2022
1 kohde/ Medianäkyvyys
Lehdistö/media: Esiintyminen mediassa

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@article{d560e03298424704af671e8785be3e18,

title = "Performance improvements for the all-copper redox flow battery: Membranes, electrodes, and electrolytes",

abstract = "The ever-increasing demand for renewable energy storage has led to the development of many energy storage systems, such as redox flow batteries (RFBs), including vanadium, iron–chromium, and the copper redox flow battery (CuRFB). A multitude of materials and electrolytes have been investigated to improve the performance of the CuRFB using an in-house manufactured cell. Using carbon ink coatings for the negative electrode and modern ion exchange membranes (IEMs), this version of the CuRFB was improved to current efficiencies above 95% with high voltage efficiencies of up to 81%, thereby improving energy efficiency by nearly 9% over the previous state of the art at 20 mA cm −2. Additionally, the operating time of the CuRFB was significantly extended over 210 h of operation (50 cycles), 32% of the capacity remaining, without maintenance. Finally, stability of the new system with modern IEMs was proven by operation for over 1200 h operation, with over 300 charge and discharge cycles performed. ",

keywords = "Redox flow batteries, hybrid flow cell, ion exchange membrane, cyclic voltammetry, Renewable energy storage",

author = "Badenhorst, {Wouter Dirk} and Kuldeep and Laura Sanz and Catia Arbizzani and Lasse Murtom{\"a}ki",

note = "| openaire: EC/H2020/875605/EU//CUBER",

year = "2022",

month = nov,

doi = "10.1016/j.egyr.2022.06.075",

language = "English",

volume = "8",

pages = "8690--8700",

journal = "Energy Reports",

issn = "2352-4847",

publisher = "Elsevier",

}

TY - JOUR

T1 - Performance improvements for the all-copper redox flow battery: Membranes, electrodes, and electrolytes

AU - Badenhorst, Wouter Dirk

AU - Kuldeep, null

AU - Sanz, Laura

AU - Arbizzani, Catia

AU - Murtomäki, Lasse

N1 - | openaire: EC/H2020/875605/EU//CUBER

PY - 2022/11

Y1 - 2022/11

N2 - The ever-increasing demand for renewable energy storage has led to the development of many energy storage systems, such as redox flow batteries (RFBs), including vanadium, iron–chromium, and the copper redox flow battery (CuRFB). A multitude of materials and electrolytes have been investigated to improve the performance of the CuRFB using an in-house manufactured cell. Using carbon ink coatings for the negative electrode and modern ion exchange membranes (IEMs), this version of the CuRFB was improved to current efficiencies above 95% with high voltage efficiencies of up to 81%, thereby improving energy efficiency by nearly 9% over the previous state of the art at 20 mA cm −2. Additionally, the operating time of the CuRFB was significantly extended over 210 h of operation (50 cycles), 32% of the capacity remaining, without maintenance. Finally, stability of the new system with modern IEMs was proven by operation for over 1200 h operation, with over 300 charge and discharge cycles performed.

AB - The ever-increasing demand for renewable energy storage has led to the development of many energy storage systems, such as redox flow batteries (RFBs), including vanadium, iron–chromium, and the copper redox flow battery (CuRFB). A multitude of materials and electrolytes have been investigated to improve the performance of the CuRFB using an in-house manufactured cell. Using carbon ink coatings for the negative electrode and modern ion exchange membranes (IEMs), this version of the CuRFB was improved to current efficiencies above 95% with high voltage efficiencies of up to 81%, thereby improving energy efficiency by nearly 9% over the previous state of the art at 20 mA cm −2. Additionally, the operating time of the CuRFB was significantly extended over 210 h of operation (50 cycles), 32% of the capacity remaining, without maintenance. Finally, stability of the new system with modern IEMs was proven by operation for over 1200 h operation, with over 300 charge and discharge cycles performed.

KW - Redox flow batteries

KW - hybrid flow cell

KW - ion exchange membrane

KW - cyclic voltammetry

KW - Renewable energy storage

UR - http://www.scopus.com/inward/record.url?scp=85133470973&partnerID=8YFLogxK

U2 - 10.1016/j.egyr.2022.06.075

DO - 10.1016/j.egyr.2022.06.075

M3 - Article

SN - 2352-4847

VL - 8

SP - 8690

EP - 8700

JO - Energy Reports

JF - Energy Reports

ER -

Performance improvements for the all-copper redox flow battery: Membranes, electrodes, and electrolytes

Abstrakti

YK:n kestävän kehityksen tavoitteet

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Projektit

CUBER: Copper-Based Flow Batteries for energy storage renewables integration

Lehtileikkeet

Research Reports on Energy from Aalto University Provide New Insights (Performance improvements for the all-copper redox flow battery: Membranes, electrodes, and electrolytes)

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