Oxygen Content and Electrode Characteristics of LiMn&lt;sub&gt;1.5&lt;/sub&gt;Ni&lt;sub&gt;0.5&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt; as a 5 V Class Cathode Material for Lithium Secondary Battery

Idemoto, Yasushi; Narai, Hirosuke; Koura, Nobuyuki

doi:10.5796/electrochemistry.70.587

Cited by 10 publications

(1 citation statement)

References 7 publications

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“…LiNi 0.5 Mn 1.5 O 4 (LNMO) spinel has been intensively investigated since 2000s. , It enables operation at higher voltage than LMO while keeping its theoretical capacity of 147 mA·h·g –1 . LNMO presents an extended two-step plateau centered at around 4.7 V vs Li + /Li, which is attributed to Ni 2+ oxidation to Ni 3+ and Ni 4+ , with both processes separated by ∼0.05 V. Both experimental and theoretical studies have shown that the voltage–composition curve of LNMO is altered depending on the distribution of Ni 2+ and Mn 4+ ions within the crystal structure .…”

Section: Introductionmentioning

confidence: 99%

Elucidating the Electrochemical Properties of LiFe_0.5Mn_1.5O₄ as a High-Voltage, Low-Cost Material

Monterrubio,

Lakuntza,

Casas-Cabanas

et al. 2024

J. Phys. Chem. C

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In this article, key electrochemical features of LiFe 0.5 Mn 1.5 O 4 (LFMO) such as phase stability, voltage behavior, and redox process during delithiation are investigated using density functional theory calculations implementing both PBE + U and SCAN functionals. Our findings indicate that numerous equally likely intermediates can be formed, regardless of the metallic distribution across all lithium compositions, thereby excluding a biphasic mechanism between LFMO and FMO. The shape of the experimental voltage−composition curve is well reproduced by both functionals predicting a voltage step in the half-lithiated LFMO, and the PBE + U functional is more accurate in predicting quantitatively the Mn and Fe plateaus, while SCAN underestimates them. The redox activity of Li x Fe 0.5 Mn 1.5 O 4 is primarily governed by the Mn 3+/4+ redox couple in the range of 0.5 ≤ x ≤ 1, whereas the Fe 3+/4+/(3.x+) couple operates in the region of 0 ≤ x ≤ 0.5, aligned with the experimental voltage−composition curves. The investigation of the redox process suggests the possibility of an anionic contribution that may be reversible in the case of the SCAN functional. This discovery paves the path for the next generation of high-voltage, environmentally friendly lithium-ion batteries with remarkable stability, enhanced performance, and cost-effective potential.

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Section: Introductionmentioning

confidence: 99%

Elucidating the Electrochemical Properties of LiFe_0.5Mn_1.5O₄ as a High-Voltage, Low-Cost Material

Monterrubio,

Lakuntza,

Casas-Cabanas

et al. 2024

J. Phys. Chem. C

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High Voltage Cathode Materials

Julien

Mauger

Zaghib³

et al. 2015

Rechargeable Batteries

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Review of 5-V electrodes for Li-ion batteries: status and trends

Julien

Mauger

2013

Ionics

182

153

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International audienceLithium-ion batteries have dominated the battery industry for the past several years in portable electronic devices due to their high volumetric and gravimetric energy densities. The success of these batteries in small-scale applications translates to large-scale applications, with an important impact in the future of the environment by improving energy efficiency and reduction of pollution. We present the progress that allows several lithium-intercalation compounds to become the active cathode element of a new generation of Li-ion batteries, namely the 5-V cathodes, which are promising to improve the technology of energy storage and electric transportation, and address the replacement of gasoline engine by meeting the increasing demand for green energy power sources. The compounds considered here include spinel LiNi0.5Mn1.5O4 and its related dopedstructures, olivine LiCoPO4, inverse spinel LiNiVO4 and fluorophosphate Li2CoPO4F. LiNi0.5Mn1.5O4 thin films, nanoscale prepared materials and surface-modified cathode particles are also considered. Emphasis is placed on the quality control that is needed to guarantee the reliability and the optimum electrochemical performance of these materials as the active cathode element of Li-ion batteries. The route to increase the performance of Li-ion batteries with the other members of the family is also discussed

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Oxygen Content and Electrode Characteristics of LiMn<sub>1.5</sub>Ni<sub>0.5</sub>O<sub>4</sub> as a 5 V Class Cathode Material for Lithium Secondary Battery

Cited by 10 publications

References 7 publications

Elucidating the Electrochemical Properties of LiFe_0.5Mn_1.5O₄ as a High-Voltage, Low-Cost Material

Elucidating the Electrochemical Properties of LiFe_0.5Mn_1.5O₄ as a High-Voltage, Low-Cost Material

High Voltage Cathode Materials

Review of 5-V electrodes for Li-ion batteries: status and trends

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Oxygen Content and Electrode Characteristics of LiMn<sub>1.5</sub>Ni<sub>0.5</sub>O<sub>4</sub> as a 5 V Class Cathode Material for Lithium Secondary Battery

Cited by 10 publications

References 7 publications

Elucidating the Electrochemical Properties of LiFe0.5Mn1.5O4 as a High-Voltage, Low-Cost Material

Elucidating the Electrochemical Properties of LiFe0.5Mn1.5O4 as a High-Voltage, Low-Cost Material

High Voltage Cathode Materials

Review of 5-V electrodes for Li-ion batteries: status and trends

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Product

Resources

About

Elucidating the Electrochemical Properties of LiFe_0.5Mn_1.5O₄ as a High-Voltage, Low-Cost Material

Elucidating the Electrochemical Properties of LiFe_0.5Mn_1.5O₄ as a High-Voltage, Low-Cost Material