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Balducci L, Darjazi H, Gonzalo E, Cid R, Bonilla F, Nobili F. Evaluation of Electronic-Ionic Transport Properties of a Mg/Zr-Modified LiNi 0.5Mn 1.5O 4 Cathode for Li-Ion Batteries. ACS Appl Mater Interfaces 2023; 15:55620-55632. [PMID: 37983386 DOI: 10.1021/acsami.3c10480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
There is an enormous drive for moving toward cathode material research in LIBs due to the proposal of zero-emission electric vehicles together with the restriction of cathode materials in design. LiNi0.5Mn1.5O4 (LNMO) attracts great research interests as high-voltage Co-free cathodes in LIBs. However, a more extensive study is required for LNMO due to its poor electrochemical performance, especially at high temperature, because of the instability of the LNMO interface. Herein, we design structural modifications using Mg and Zr to alleviate the above-mentioned drawbacks by limiting Mn dissolution and tailoring interstitial sites (which are shown by structural and electrochemical characterizations). This strategy enhances the cycle life up to 1000 cycles at both 25 and 50 °C. In addition, a thorough characterization by impedance spectroscopy is applied to give an insight into the electronic and ionic transport properties and the intricate phase transitions occurring upon oxidation and reduction.
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Affiliation(s)
- Leonardo Balducci
- School of Science and Technology─Chemistry Division, University of Camerino, Via Madonna delle Carceri, ChIP, 62032 Camerino, Italy
| | - Hamideh Darjazi
- School of Science and Technology─Chemistry Division, University of Camerino, Via Madonna delle Carceri, ChIP, 62032 Camerino, Italy
- GISEL─Centro di Riferimento Nazionale per i Sistemi di Accumulo Elettrochimico di Energia, INSTM, via G. Giusti 9, 50121 Firenze, Italy
- Group for Applied Materials and Electrochemistry─GAME Lab, Department of Applied Science and Technology─DISAT, Politecnico di Torino, 10129 Torino, Italy
| | - Elena Gonzalo
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain
| | - Rosalía Cid
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain
| | - Francisco Bonilla
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain
| | - Francesco Nobili
- School of Science and Technology─Chemistry Division, University of Camerino, Via Madonna delle Carceri, ChIP, 62032 Camerino, Italy
- GISEL─Centro di Riferimento Nazionale per i Sistemi di Accumulo Elettrochimico di Energia, INSTM, via G. Giusti 9, 50121 Firenze, Italy
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