Green and efficient synthesis of micro-nano LiMn0.8Fe0.2PO4/C composite with high-rate performance for Li-ion battery

Peng, Zhongdong; Zhang, Baichao; Hu, Guorong; Du, Ke; Xie, Xiaoming; Wu, Kaipeng; Wu, Jiahui; Gong, Yifan; Shu, Yuming; Cao, Yanbing

doi:10.1016/j.electacta.2021.138456

Cited by 15 publications

(5 citation statements)

References 48 publications

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“…Fe-doping has a positive effect on the two-phase transition and optimizes the charge-discharge performance of the LiMn 0.8 Fe 0.2 PO 4 @C cathode. 49 The discharge capacity of LMFP-0 without oxalic acid is only 84.1 mA h g −1 . The specific discharge capacity changes gradually with the amount of oxalic acid.…”

Section: Resultsmentioning

confidence: 97%

LiMn_0.8Fe_0.2PO₄@C cathode prepared via a novel hydrated MnHPO₄ intermediate for high performance lithium-ion batteries

Zeng

Liu

Fan

et al. 2023

Inorg. Chem. Front.

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Section: Resultsmentioning

confidence: 97%

LiMn_0.8Fe_0.2PO₄@C cathode prepared via a novel hydrated MnHPO₄ intermediate for high performance lithium-ion batteries

Zeng

Liu

Fan

et al. 2023

Inorg. Chem. Front.

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“…This observation is consistent with the CV curves displayed in Figure 4a. [54] In addition, in the first cycle, the LMFP64/CA performs a charge capacity of 143.5 mAh g À 1 and a discharge capacity of 125.1 mAh g À 1 , corresponding to a high initial Coulombic efficiency (ICE) of 87.16 %. And the subsequent two curves exhibit significant overlap, indicating the lithiation/delithiation process in the LMFP64/CA electrode is highly reversible.…”

Section: Resultsmentioning

confidence: 99%

Surface Modification Engineering Enabling LiMn_xFe_1−xPO₄ Cathode Against Aggressive Cathode Chemistries for Excellent Performance Lithium‐Ion Batteries

Li,

Yu,

Liao

et al. 2024

ChemNanoMat

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As an indispensable cathode material for lithium‐ion batteries, LiMnxFe1‐xPO4 (LMFP) has garnered significant attention among scholars due to its considerable energy density and remarkable safety characteristics. However, the further advancement of LMFP is hindered by its poor conductivity and limitations in terms of cycle stability. Herein, LiMn0.6Fe0.4PO4@C@Al2O3 (LMFP64/CA) composite materials with core‐shell structure were prepared through simple solvothermal and liquid phase coating methods. The carbon layer can further bolster the structural robustness of the active material, increase conductivity, and facilitate ion and electron transfer; while the Al2O3 layer can function as a protective interface, effectively mitigating the detrimental electrochemical side effects arising from hydrofluoric acid (HF) generated during electrolyte decomposition within a wide voltage range. Consequently, the LMFP64/CA electrode exhibits impressive electrochemical performance including notable reversible capacity (125.1 mAh g‐1 at 0.5 C), exceptional rate performance (111.2 mAh g‐1 at 1 C), and remarkable cycle stability at 5 C (0.021% decay rate over 500 cycles).

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“…Therefore, the design of precursors aims to integrate Fe, Mn and P elements in accordance with the target Mn/Fe ratio, particularly focusing on Fe and Mn elements. Under this premise, researchers have developed various precursors, including Mn–Fe binary precursors (e.g., Mn x Fe 1– x C 2 O 4 − and Mn x Fe y O 4 , ) and Mn–Fe–P ternary precursors (e.g., Mn x Fe 1– x PO 4 , (Mn x Fe 1– x ) 3 (PO 4 ) 2 , ,− and NH 4 Mn x Fe 1– x PO 4 ).…”

Section: Rational Design Of Precursorsmentioning

confidence: 99%

Optimizing the Electrochemical Performance of Olivine LiMn_xFe_1–xPO₄ Cathode Materials: Ongoing Progresses and Challenges

Xu,

Sun,

Lyv

et al. 2024

Ind. Eng. Chem. Res.

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LiMn x Fe1–x PO4 is the most promising olivine-type cathode material following LiFePO4 in terms of development potential. However, several technological challenges remain in its widespread application, particularly in terms of its low electronic conductivity, slow Li+ diffusion rate, and undetermined optimal Mn/Fe ratio. To date, enormous efforts have been devoted to addressing the intrinsic defects of LiMn x Fe1–x PO4 to facilitate its electrochemical kinetics, and some companies have launched first-generation LiMn x Fe1–x PO4. In this review, the structural characteristics, lithium storage mechanism, and synthesis methods of LiMn x Fe1–x PO4 are first introduced. Wherein, a particular emphasis is placed on the rational design of precursors with tunable composition and tailored architecture, encompassing the Mn–Fe binary precursors and Mn–Fe–P ternary precursors. Then, up-to-date optimization strategies for improving the electrochemical performance of LiMn x Fe1–x PO4, such as Mn/Fe ratio optimizing, conductive material compositing, element doping, and morphology controlling are discussed comprehensively, with a special focus on the regulation of additional discharge plateau, which not only prevents the decrease of energy density but also maintains the consistency of LiMn x Fe1–x PO4 batteries. Finally, the critical issues, existing challenges, new research directions, and perspectives on further commercialization of LiMn x Fe1–x PO4 are also discussed.

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Green and efficient synthesis of micro-nano LiMn0.8Fe0.2PO4/C composite with high-rate performance for Li-ion battery

Cited by 15 publications

References 48 publications

LiMn_0.8Fe_0.2PO₄@C cathode prepared via a novel hydrated MnHPO₄ intermediate for high performance lithium-ion batteries

LiMn_0.8Fe_0.2PO₄@C cathode prepared via a novel hydrated MnHPO₄ intermediate for high performance lithium-ion batteries

Surface Modification Engineering Enabling LiMn_xFe_1−xPO₄ Cathode Against Aggressive Cathode Chemistries for Excellent Performance Lithium‐Ion Batteries

Optimizing the Electrochemical Performance of Olivine LiMn_xFe_1–xPO₄ Cathode Materials: Ongoing Progresses and Challenges

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Green and efficient synthesis of micro-nano LiMn0.8Fe0.2PO4/C composite with high-rate performance for Li-ion battery

Cited by 15 publications

References 48 publications

LiMn0.8Fe0.2PO4@C cathode prepared via a novel hydrated MnHPO4 intermediate for high performance lithium-ion batteries

LiMn0.8Fe0.2PO4@C cathode prepared via a novel hydrated MnHPO4 intermediate for high performance lithium-ion batteries

Surface Modification Engineering Enabling LiMnxFe1−xPO4 Cathode Against Aggressive Cathode Chemistries for Excellent Performance Lithium‐Ion Batteries

Optimizing the Electrochemical Performance of Olivine LiMnxFe1–xPO4 Cathode Materials: Ongoing Progresses and Challenges

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LiMn_0.8Fe_0.2PO₄@C cathode prepared via a novel hydrated MnHPO₄ intermediate for high performance lithium-ion batteries

LiMn_0.8Fe_0.2PO₄@C cathode prepared via a novel hydrated MnHPO₄ intermediate for high performance lithium-ion batteries

Surface Modification Engineering Enabling LiMn_xFe_1−xPO₄ Cathode Against Aggressive Cathode Chemistries for Excellent Performance Lithium‐Ion Batteries

Optimizing the Electrochemical Performance of Olivine LiMn_xFe_1–xPO₄ Cathode Materials: Ongoing Progresses and Challenges