A 98.2% energy efficiency Li-O2 battery using a LaNi-0.5Co0.5O3 perovskite cathode with extremely fast oxygen reduction and evolution kinetics

Qianyuan Qiu; Zheng-Ze Pan; Penghui Yao; Jiashu Yuan; Chun Xia; Yicheng Zhao; Yongdan Li

doi:10.1016/j.cej.2022.139608

A 98.2% energy efficiency Li-O₂ battery using a LaNi-_0.5Co_0.5O₃ perovskite cathode with extremely fast oxygen reduction and evolution kinetics

Qianyuan Qiu, Zheng-Ze Pan^*, Penghui Yao, Jiashu Yuan, Chun Xia, Yicheng Zhao, Yongdan Li

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Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

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Abstrakti

Rechargeable lithium-oxygen (Li-O₂) batteries have been regarded as a promising energy storage device, but its practical use is impeded by its low energy efficiency. Herein, a bi-functional catalytic perovskite LaNi_0.5Co_0.5O₃ (LNCO) is employed as the cathode of an efficient Li-O₂ battery with a molten nitrate salt electrolyte at 160 °C. It displays a stable low charge–discharge overpotential 50 mV with a high energy efficiency (EE) 98.2 % at 0.1 mA cm⁻² for over 100 cycles. The excellent performance is attributed to the extremely fast oxygen reduction and evolution kinetics on the surface of LNCO. The discharge product is Li₂O with a porous and fluffy morphology which facilitates the transfer of oxygen and other intermediate species. It is noted that Li₂O as a discharge product enables a theoretical specific energy density of 5200 Wh kg⁻¹, which is superior to the Li₂O₂ as product giving 3500 Wh kg⁻¹ for those ambient temperature Li-O₂ batteries.

Alkuperäiskieli	Englanti
Artikkeli	139608
Sivumäärä	9
Julkaisu	Chemical Engineering Journal
Vuosikerta	452
Varhainen verkossa julkaisun päivämäärä	12 lokak. 2022
DOI - pysyväislinkit	https://doi.org/10.1016/j.cej.2022.139608
Tila	Julkaistu - 15 tammik. 2023
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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10.1016/j.cej.2022.139608Lisenssi: CC BY-NC-ND

CHEM_Qiu_et_al_A_98_2_percent_energy_efficiency_2022_Chemical_Engineering_JournalFinal published version, 5,84 MBLisenssi: CC BY-NC-ND

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Kinetiikkaa ja materiaaleja korkealämpötila-litium-happiakkujen katodille
Pan, Z. (Vastuullinen tutkija)
01/09/2019 → 31/10/2020
Projekti: Academy of Finland: Other research funding

OtaNano
Rissanen, A. (Manager)
Aalto-yliopisto
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OtaNano Nanomikroskopiakeskus
Seitsonen, J. (Manager) & Rissanen, A. (Other)
OtaNano
Laitteistot/tilat: Facility

New Findings from Aalto University in the Area of Chemicals and Chemistry Reported (A 98.2% Energy Efficiency Li-o2 Battery Using a Lani-0.5co0.5o3 Perovskite Cathode With Extremely Fast Oxygen Reduction and Evolution Kinetics)
Li, Y.
10/02/2023
1 kohde/ Medianäkyvyys
Lehdistö/media: Esiintyminen mediassa

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@article{175dcf98b1e84f21828fb62433565f07,

title = "A 98.2% energy efficiency Li-O2 battery using a LaNi-0.5Co0.5O3 perovskite cathode with extremely fast oxygen reduction and evolution kinetics",

abstract = "Rechargeable lithium-oxygen (Li-O2) batteries have been regarded as a promising energy storage device, but its practical use is impeded by its low energy efficiency. Herein, a bi-functional catalytic perovskite LaNi0.5Co0.5O3 (LNCO) is employed as the cathode of an efficient Li-O2 battery with a molten nitrate salt electrolyte at 160 °C. It displays a stable low charge–discharge overpotential 50 mV with a high energy efficiency (EE) 98.2 % at 0.1 mA cm−2 for over 100 cycles. The excellent performance is attributed to the extremely fast oxygen reduction and evolution kinetics on the surface of LNCO. The discharge product is Li2O with a porous and fluffy morphology which facilitates the transfer of oxygen and other intermediate species. It is noted that Li2O as a discharge product enables a theoretical specific energy density of 5200 Wh kg−1, which is superior to the Li2O2 as product giving 3500 Wh kg−1 for those ambient temperature Li-O2 batteries.",

keywords = "Li-O battery, LiO pathway, Molten salt, Oxygen reduction mechanism, Perovskite catalyst",

author = "Qianyuan Qiu and Zheng-Ze Pan and Penghui Yao and Jiashu Yuan and Chun Xia and Yicheng Zhao and Yongdan Li",

note = "Funding Information: This work was supported with the start-up package of T10108 professorship offered by Aalto University. Q. Qiu, P. Yao and J. Yuan acknowledge the financial support from the China Scholarship Council (Grant No. 201906150134, 202006120046 and 201906250030). Z.-Z. Pan acknowledges the financial support of the Academy of Finland (Grant No. 324414). The authors acknowledge the technical support of SEM from OtaNano Nanomicroscopy Center and computational resources from CSC-IT center for science, Finland. Publisher Copyright: {\textcopyright} 2022 The Author(s)",

year = "2023",

month = jan,

day = "15",

doi = "10.1016/j.cej.2022.139608",

language = "English",

volume = "452",

journal = "Chemical Engineering Journal",

issn = "1385-8947",

publisher = "Elsevier",

}

TY - JOUR

T1 - A 98.2% energy efficiency Li-O2 battery using a LaNi-0.5Co0.5O3 perovskite cathode with extremely fast oxygen reduction and evolution kinetics

AU - Qiu, Qianyuan

AU - Pan, Zheng-Ze

AU - Yao, Penghui

AU - Yuan, Jiashu

AU - Xia, Chun

AU - Zhao, Yicheng

AU - Li, Yongdan

N1 - Funding Information: This work was supported with the start-up package of T10108 professorship offered by Aalto University. Q. Qiu, P. Yao and J. Yuan acknowledge the financial support from the China Scholarship Council (Grant No. 201906150134, 202006120046 and 201906250030). Z.-Z. Pan acknowledges the financial support of the Academy of Finland (Grant No. 324414). The authors acknowledge the technical support of SEM from OtaNano Nanomicroscopy Center and computational resources from CSC-IT center for science, Finland. Publisher Copyright: © 2022 The Author(s)

PY - 2023/1/15

Y1 - 2023/1/15

N2 - Rechargeable lithium-oxygen (Li-O2) batteries have been regarded as a promising energy storage device, but its practical use is impeded by its low energy efficiency. Herein, a bi-functional catalytic perovskite LaNi0.5Co0.5O3 (LNCO) is employed as the cathode of an efficient Li-O2 battery with a molten nitrate salt electrolyte at 160 °C. It displays a stable low charge–discharge overpotential 50 mV with a high energy efficiency (EE) 98.2 % at 0.1 mA cm−2 for over 100 cycles. The excellent performance is attributed to the extremely fast oxygen reduction and evolution kinetics on the surface of LNCO. The discharge product is Li2O with a porous and fluffy morphology which facilitates the transfer of oxygen and other intermediate species. It is noted that Li2O as a discharge product enables a theoretical specific energy density of 5200 Wh kg−1, which is superior to the Li2O2 as product giving 3500 Wh kg−1 for those ambient temperature Li-O2 batteries.

AB - Rechargeable lithium-oxygen (Li-O2) batteries have been regarded as a promising energy storage device, but its practical use is impeded by its low energy efficiency. Herein, a bi-functional catalytic perovskite LaNi0.5Co0.5O3 (LNCO) is employed as the cathode of an efficient Li-O2 battery with a molten nitrate salt electrolyte at 160 °C. It displays a stable low charge–discharge overpotential 50 mV with a high energy efficiency (EE) 98.2 % at 0.1 mA cm−2 for over 100 cycles. The excellent performance is attributed to the extremely fast oxygen reduction and evolution kinetics on the surface of LNCO. The discharge product is Li2O with a porous and fluffy morphology which facilitates the transfer of oxygen and other intermediate species. It is noted that Li2O as a discharge product enables a theoretical specific energy density of 5200 Wh kg−1, which is superior to the Li2O2 as product giving 3500 Wh kg−1 for those ambient temperature Li-O2 batteries.

KW - Li-O battery

KW - LiO pathway

KW - Molten salt

KW - Oxygen reduction mechanism

KW - Perovskite catalyst

UR - http://www.scopus.com/inward/record.url?scp=85140032033&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2022.139608

DO - 10.1016/j.cej.2022.139608

M3 - Article

AN - SCOPUS:85140032033

SN - 1385-8947

VL - 452

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

M1 - 139608

ER -

A 98.2% energy efficiency Li-O2 battery using a LaNi-0.5Co0.5O3 perovskite cathode with extremely fast oxygen reduction and evolution kinetics

Abstrakti

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Projektit

Kinetiikkaa ja materiaaleja korkealämpötila-litium-happiakkujen katodille

Laitteet

OtaNano

OtaNano Nanomikroskopiakeskus

Lehtileikkeet

New Findings from Aalto University in the Area of Chemicals and Chemistry Reported (A 98.2% Energy Efficiency Li-o2 Battery Using a Lani-0.5co0.5o3 Perovskite Cathode With Extremely Fast Oxygen Reduction and Evolution Kinetics)

Siteeraa tätä

A 98.2% energy efficiency Li-O₂ battery using a LaNi-_0.5Co_0.5O₃ perovskite cathode with extremely fast oxygen reduction and evolution kinetics