MgO coated P2-Na0.67Mn0.75Ni0.25O2 layered oxide cathode for Na-Ion batteries

Cornelius Gauckler; Gints Kučinskis; Lukas Fridolin Pfeiffer; Abdelaziz A. Abdellatif; Yushu Tang; Christian Kübel; Fabio Maroni; Ruihao Gong; Margret Wohlfahrt-Mehrens; Peter Axmann; Mario Marinaro

doi:10.1016/j.powera.2024.100135

MgO coated P2-Na0.67Mn0.75Ni0.25O2 layered oxide cathode for Na-Ion batteries

Cornelius Gauckler
, Gints Kučinskis
, Lukas Fridolin Pfeiffer
, Abdelaziz A. Abdellatif
, Yushu Tang
, Christian Kübel
, Fabio Maroni
, Ruihao Gong
, Margret Wohlfahrt-Mehrens
, Peter Axmann
, Mario Marinaro^*

^*Corresponding author for this work

Center for Solar Energy and Hydrogen Research Baden-Württemberg
Karlsruhe Institute of Technology

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

In this study, we propose an effective strategy to improve the electrochemical performance of a P2-Na_0.67Mn_0.75Ni_0.25O₂ (P2-MNO) cathode material for Na-ion batteries based on MgO surface coating. The MgO coating, with a thickness of ∼20–50 nm, is obtained by means of a facile wet-chemistry approach followed by heat treatment carried out at comparatively low temperatures (400–500 °C) in order to avoid possible Mg doping in the bulk of the P2-MNO. Detailed electrochemical investigations demonstrate improved electrochemical performance of the MgO-coated material (M-P2-MNO) in comparison to pristine bare one at both room and elevated (40 °C) temperatures. Operando differential electrochemical mass spectroscopy (DEMS) demonstrate that the MgO coating is effective in suppressing unwanted gas evolution due to side reactions thus stabilizing the cathode/electrolyte interface.

Original language	English
Article number	100135
Pages (from-to)	1-8
Journal	Journal of Power Sources Advances
Volume	25
DOIs	https://doi.org/10.1016/j.powera.2024.100135
Publication status	Published - Jan 2024

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

OECD Field of Science

1.3 Physical Sciences

Keywords

Batteries
Coating
Layered oxide
Magnesium
Sodium

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10.1016/j.powera.2024.100135

Cite this

@article{cb4c02e215264a838502ce62eb43349e,

title = "MgO coated P2-Na0.67Mn0.75Ni0.25O2 layered oxide cathode for Na-Ion batteries",

abstract = "In this study, we propose an effective strategy to improve the electrochemical performance of a P2-Na0.67Mn0.75Ni0.25O2 (P2-MNO) cathode material for Na-ion batteries based on MgO surface coating. The MgO coating, with a thickness of ∼20{\textendash}50 nm, is obtained by means of a facile wet-chemistry approach followed by heat treatment carried out at comparatively low temperatures (400{\textendash}500 °C) in order to avoid possible Mg doping in the bulk of the P2-MNO. Detailed electrochemical investigations demonstrate improved electrochemical performance of the MgO-coated material (M-P2-MNO) in comparison to pristine bare one at both room and elevated (40 °C) temperatures. Operando differential electrochemical mass spectroscopy (DEMS) demonstrate that the MgO coating is effective in suppressing unwanted gas evolution due to side reactions thus stabilizing the cathode/electrolyte interface.",

keywords = "Batteries, Coating, Layered oxide, Magnesium, Sodium",

author = "Cornelius Gauckler and Gints Ku{\v c}inskis and Pfeiffer, \{Lukas Fridolin\} and Abdellatif, \{Abdelaziz A.\} and Yushu Tang and Christian K{\"u}bel and Fabio Maroni and Ruihao Gong and Margret Wohlfahrt-Mehrens and Peter Axmann and Mario Marinaro",

note = "Publisher Copyright: {\textcopyright} 2024",

year = "2024",

month = jan,

doi = "10.1016/j.powera.2024.100135",

language = "English",

volume = "25",

pages = "1--8",

journal = "Journal of Power Sources Advances",

issn = "2666-2485",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - MgO coated P2-Na0.67Mn0.75Ni0.25O2 layered oxide cathode for Na-Ion batteries

AU - Gauckler, Cornelius

AU - Kučinskis, Gints

AU - Pfeiffer, Lukas Fridolin

AU - Abdellatif, Abdelaziz A.

AU - Tang, Yushu

AU - Kübel, Christian

AU - Maroni, Fabio

AU - Gong, Ruihao

AU - Wohlfahrt-Mehrens, Margret

AU - Axmann, Peter

AU - Marinaro, Mario

PY - 2024/1

Y1 - 2024/1

N2 - In this study, we propose an effective strategy to improve the electrochemical performance of a P2-Na0.67Mn0.75Ni0.25O2 (P2-MNO) cathode material for Na-ion batteries based on MgO surface coating. The MgO coating, with a thickness of ∼20–50 nm, is obtained by means of a facile wet-chemistry approach followed by heat treatment carried out at comparatively low temperatures (400–500 °C) in order to avoid possible Mg doping in the bulk of the P2-MNO. Detailed electrochemical investigations demonstrate improved electrochemical performance of the MgO-coated material (M-P2-MNO) in comparison to pristine bare one at both room and elevated (40 °C) temperatures. Operando differential electrochemical mass spectroscopy (DEMS) demonstrate that the MgO coating is effective in suppressing unwanted gas evolution due to side reactions thus stabilizing the cathode/electrolyte interface.

AB - In this study, we propose an effective strategy to improve the electrochemical performance of a P2-Na0.67Mn0.75Ni0.25O2 (P2-MNO) cathode material for Na-ion batteries based on MgO surface coating. The MgO coating, with a thickness of ∼20–50 nm, is obtained by means of a facile wet-chemistry approach followed by heat treatment carried out at comparatively low temperatures (400–500 °C) in order to avoid possible Mg doping in the bulk of the P2-MNO. Detailed electrochemical investigations demonstrate improved electrochemical performance of the MgO-coated material (M-P2-MNO) in comparison to pristine bare one at both room and elevated (40 °C) temperatures. Operando differential electrochemical mass spectroscopy (DEMS) demonstrate that the MgO coating is effective in suppressing unwanted gas evolution due to side reactions thus stabilizing the cathode/electrolyte interface.

KW - Batteries

KW - Coating

KW - Layered oxide

KW - Magnesium

KW - Sodium

UR - https://www.scopus.com/pages/publications/85182583408

U2 - 10.1016/j.powera.2024.100135

DO - 10.1016/j.powera.2024.100135

M3 - Article

SN - 2666-2485

VL - 25

SP - 1

EP - 8

JO - Journal of Power Sources Advances

JF - Journal of Power Sources Advances

M1 - 100135

ER -

MgO coated P2-Na0.67Mn0.75Ni0.25O2 layered oxide cathode for Na-Ion batteries

Abstract

UN SDGs

OECD Field of Science

Keywords

Access to Document

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