Te-doped Fe3O4 flower enabling low overpotential cycling of Li−CO2 batteries at high current density

Yu, Huyi; Huang, Renshu; Liu, Qian; Chen, Xingfa; Yu, Tianqi; Wang, Haiquan; Liang, Xincheng; Yin, Shibin

doi:10.1016/j.cjsc.2024.100253

Chinese Journal of Structural Chemistry

2024

DOI: 10.1016/j.cjsc.2024.100253

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Te-doped Fe3O4 flower enabling low overpotential cycling of Li−CO2 batteries at high current density

Huyi Yu,

Renshu Huang,

Qian Liu

et al.

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Cited by 3 publications

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Routes to Bidirectional Cathodes for Reversible Aprotic Alkali Metal–CO₂ Batteries

Cheng,

Wang,

Chen

et al. 2024

Advanced Materials

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Aprotic alkali metal–CO2 batteries (AAMCBs) have garnered significant interest owing to fixing CO2 and providing large energy storage capacity. The practical implementation of AAMCBs is constrained by the sluggish kinetics of the CO2 reduction reaction (CO2RR) and the CO2 evolution reaction (CO2ER). Because the CO2ER and CO2RR take place on the cathode, which connects the internal catalyst with the external environment. Building a bidirectional cathode with excellent CO2ER and CO2RR kinetics by optimizing the cathode's internal catalyst and environment has attracted most of the attention to improving the electrochemical performance of AAMCBs. However, there remains a lack of comprehensive understanding. This review aims to give a route to bidirectional cathodes for reversible AAMCBs, by systematically discussing engineering strategies of both the internal catalyst (atomic, nanoscopic, and macroscopic levels) and the external environment (photo, photo‐thermal, and force field). The CO2ER and CO2RR mechanisms and the “engineering strategies from internal catalyst to the external environment–cathode properties–CO2RR and CO2ER kinetics and mechanisms–batteries performance” relationship are elucidated by combining computational and experimental approaches. This review establishes a fundamental understanding for designing bidirectional cathodes and gives a route for developing reversible AAMCBs and similar metal–gas battery systems.

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Routes to Bidirectional Cathodes for Reversible Aprotic Alkali Metal–CO₂ Batteries

Cheng,

Wang,

Chen

et al. 2024

Advanced Materials

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Engineering of MnTe/MnO Heterostructures with Interfacial Electric Field Modulation for Efficient and Durable Li–O₂ Batteries

Yin,

Yan,

Yan

et al. 2024

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Design and synthesis of highly active and robust bifunctional cathode catalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are of vital significance for practical applications of lithium–oxygen (Li–O2) batteries. Herein, a built‐in electric field (BIEF) strategy is reported to fabricate MnTe/MnO heterostructures with a large work function difference (ΔΦ) as a bifunctional cathode catalyst in Li–O2 batteries. The MnTe/MnO heterostructures with nanosheets and microporous structures result in an abundance of exposed active sites and facilitate mass transfer. More importantly, the heterogeneous MnTe/MnO nano‐interface region provides a BIEF that can trigger interfacial charge redistribution, fine‐tune the adsorption energy of oxygen intermediates, and alter the morphology of discharge products to accelerate ORR/OER kinetics. Impressively, the fabricated Li–O2 batteries with MnTe/MnO cathode showcases exhibit excellent electrochemical performances, including low charging overpotential, a high specific capacity of 11930 mA h g−1, and good cycle stability over 350 cycles even with a fixed specific capacity of 500 mA h g−1 at a current density of 500 mA g−1. This work provides an avenue for the rational design of high performance heterostructure electrocatalysts toward practical applications for rechargeable Li–O2 batteries.

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Surface acidity regulation for boosting Li2O2 decomposition towards lower charge overpotential Li–O2 batteries

Liu,

Huang,

Liang

et al. 2025

Energy Storage Materials

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Te-doped Fe3O4 flower enabling low overpotential cycling of Li−CO2 batteries at high current density

Cited by 3 publications

References 54 publications

Routes to Bidirectional Cathodes for Reversible Aprotic Alkali Metal–CO₂ Batteries

Routes to Bidirectional Cathodes for Reversible Aprotic Alkali Metal–CO₂ Batteries

Engineering of MnTe/MnO Heterostructures with Interfacial Electric Field Modulation for Efficient and Durable Li–O₂ Batteries

Surface acidity regulation for boosting Li2O2 decomposition towards lower charge overpotential Li–O2 batteries

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Te-doped Fe3O4 flower enabling low overpotential cycling of Li−CO2 batteries at high current density

Cited by 3 publications

References 54 publications

Routes to Bidirectional Cathodes for Reversible Aprotic Alkali Metal–CO2 Batteries

Routes to Bidirectional Cathodes for Reversible Aprotic Alkali Metal–CO2 Batteries

Engineering of MnTe/MnO Heterostructures with Interfacial Electric Field Modulation for Efficient and Durable Li–O2 Batteries

Surface acidity regulation for boosting Li2O2 decomposition towards lower charge overpotential Li–O2 batteries

Contact Info

Product

Resources

About

Routes to Bidirectional Cathodes for Reversible Aprotic Alkali Metal–CO₂ Batteries

Routes to Bidirectional Cathodes for Reversible Aprotic Alkali Metal–CO₂ Batteries

Engineering of MnTe/MnO Heterostructures with Interfacial Electric Field Modulation for Efficient and Durable Li–O₂ Batteries