A simple and facile one-step strategy to synthesize orthorhombic LiMnO2 nano-particles with excellent electrochemical performance

Zhao, Hongyuan; Chen, Bing; Cheng, Cai; Xiong, Weiqiang; Wang, Zhenwei; Zhang, Zheng; Wang, Liping; Liu, Xingquan

doi:10.1016/j.ceramint.2015.07.213

Cited by 41 publications

(5 citation statements)

References 24 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The semicircle observed in the middle and high-frequency regions represents the charge transfer impedance (R ct ), while the straight line in the low-frequency region represents the rate of Li + ion diffusion. [51][52][53][54][55] Analysis of these two parameters allows for better characterization of the kinetic properties of the electrochemical reaction. 56,57 The charge transfer impedance reflects the reaction rate at the electrode surface, and a small charge transfer impedance usually implies a high electronic conductivity.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Properties of Li₄Ti₅O₁₂ Coated LiMn_0.6Fe_0.4PO₄ Prepared by Rheological Phase Reaction Method

Gu,

Li,

et al. 2024

J. Electrochem. Soc.

View full text Add to dashboard Cite

In this study, we fabricated LiMn0.6Fe0.4PO4/C (LMFP/C) materials employing the spray drying method. Subsequently, the LMFP/C composites underwent surface modification with Li4Ti5O12 (LTO) using the rheological phase reaction method. LTO demonstrates high electrochemical activity and possesses significantly greater lithium-ion conductivity compared to LMFP. The developed composite coating serves a dual purpose by safeguarding the LMFP material against electrolyte erosion and facilitating the swift transfer of lithium ions and electrons. The results from transmission electron microscopy and energy-dispersive X-ray spectroscopy validated the successful coating of LTO onto the LMFP/C surface after the surface modification treatment. A comparative analysis was conducted between the pristine LMFP/C powder and the LMFP-LTO composite that underwent surface modification. The results reveal that the 2 wt. % LTO-coated LMFP/C composite has the best electrochemical performance, manifesting specific capacities of 156 and 132.6 mAh·g-1 at 0.2 and 5 C rate, respectively. Furthermore, the material demonstrated excellent cycle retention, with 95.4% capacity retention after 100 cycles at 1 C. Hence, LTO coating can be considered an efficacious strategy for enhancing the electrochemical performance of LMFP.

show abstract

Section: Resultsmentioning

confidence: 99%

Electrochemical Properties of Li₄Ti₅O₁₂ Coated LiMn_0.6Fe_0.4PO₄ Prepared by Rheological Phase Reaction Method

Gu,

Li,

et al. 2024

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…Hence, the facile and simple one‐step hydrothermal approach was chosen to obtain LiMnO 2 materials. [ 72 , 73 ] This way is conventionally achieved by employing the reactants of Mn source (Mn 2 O 3 /MnO 2 ) and LiOH·H 2 O aqueous solution in a Teflon‐lined autoclave. Unfortunately, this method may introduce small amounts of impurities (e.g., Li 2 MnO 3 ) in samples.…”

Section: Limnomentioning

confidence: 99%

Progress, Challenge, and Prospect of LiMnO₂: An Adventure toward High‐Energy and Low‐Cost Li‐Ion Batteries

Ma,

Liu,

et al. 2023

Advanced Science

View full text Add to dashboard Cite

Lithium manganese oxides are considered as promising cathodes for lithium‐ion batteries due to their low cost and available resources. Layered LiMnO2 with orthorhombic or monoclinic structure has attracted tremendous interest thanks to its ultrahigh theoretical capacity (285 mAh g−1) that almost doubles that of commercialized spinel LiMn2O4 (148 mAh g−1). However, LiMnO2 undergoes phase transition to spinel upon cycling cause by the Jahn‐Teller effect of the high‐spin Mn3+. In addition, soluble Mn2+ generates from the disproportionation of Mn3+ and oxygen release during electrochemical processes may cause poor cycle performance. To address the critical issues, tremendous efforts have been made. This paper provides a general review of layered LiMnO2 materials including their crystal structures, synthesis methods, structural/elemental modifications, and electrochemical performance. In brief, first the crystal structures of LiMnO2 and synthetic methods have been summarized. Subsequently, modification strategies for improving electrochemical performance are comprehensively reviewed, including element doping to suppress its phase transition, surface coating to resist manganese dissolution into the electrolyte and impede surface reactions, designing LiMnO2 composites to improve electronic conductivity and Li+ diffusion, and finding compatible electrolytes to enhance safety. At last, future efforts on the research frontier and practical application of LiMnO2 have been discussed.

show abstract

“…37 One possible interpretation of this behavior involves the size of the inserted species, often expressed in terms of the Stokes radius, which is a parameter experimentally determined by experiments in aqueous systems and can be corrected for non-aqueous solutions. 34 The higher the charge to radius ratio of an ion, the more strongly water molecules will coordinate to it, so a smaller effective ionic radius results in a larger Stokes radius in aqueous solutions. Therefore, batteries based on Li + ions present a worse performance than Na + and K + ions when metalhexacyanometallates are used as active materials.…”

Section: Electrochemical Performance Of Cuhcf As a Cathode Formentioning

confidence: 99%

Rechargeable Lithium-Ion Battery Based on a Cathode of Copper Hexacyanoferrate

Rojas

Cáceres

López

et al. 2021

J. Electrochem. Soc.

View full text Add to dashboard Cite

In this work, the performance of copper(II) hexacyanoferrate(III) (CuHCF) as a cathode material for lithium-ion batteries was studied. The compound was synthesized by a precipitation reaction in aqueous solution in a closed system. The morphology and structure show nanoparticles with sizes between 40 and 70 nm with a high agglomeration and a crystalline phase with a cubic structure, respectively. The material exhibited a stable performance with a working potential of around 3.6 V vs Li+/Li and a decrease in the charge transfer resistance due to increased ionic conductivity. The gravimetric capacity obtained is near 60 mAh g−1 during 300 cycles at a rate of C/20, close to the practical capacity. Considering its electrochemical performance, CuHCF could be a promising cathode material for lithium-ion batteries.

show abstract

A simple and facile one-step strategy to synthesize orthorhombic LiMnO2 nano-particles with excellent electrochemical performance

Cited by 41 publications

References 24 publications

Electrochemical Properties of Li₄Ti₅O₁₂ Coated LiMn_0.6Fe_0.4PO₄ Prepared by Rheological Phase Reaction Method

Electrochemical Properties of Li₄Ti₅O₁₂ Coated LiMn_0.6Fe_0.4PO₄ Prepared by Rheological Phase Reaction Method

Progress, Challenge, and Prospect of LiMnO₂: An Adventure toward High‐Energy and Low‐Cost Li‐Ion Batteries

Rechargeable Lithium-Ion Battery Based on a Cathode of Copper Hexacyanoferrate

Contact Info

Product

Resources

About

A simple and facile one-step strategy to synthesize orthorhombic LiMnO2 nano-particles with excellent electrochemical performance

Cited by 41 publications

References 24 publications

Electrochemical Properties of Li4Ti5O12 Coated LiMn0.6Fe0.4PO4 Prepared by Rheological Phase Reaction Method

Electrochemical Properties of Li4Ti5O12 Coated LiMn0.6Fe0.4PO4 Prepared by Rheological Phase Reaction Method

Progress, Challenge, and Prospect of LiMnO2: An Adventure toward High‐Energy and Low‐Cost Li‐Ion Batteries

Rechargeable Lithium-Ion Battery Based on a Cathode of Copper Hexacyanoferrate

Contact Info

Product

Resources

About

Electrochemical Properties of Li₄Ti₅O₁₂ Coated LiMn_0.6Fe_0.4PO₄ Prepared by Rheological Phase Reaction Method

Electrochemical Properties of Li₄Ti₅O₁₂ Coated LiMn_0.6Fe_0.4PO₄ Prepared by Rheological Phase Reaction Method

Progress, Challenge, and Prospect of LiMnO₂: An Adventure toward High‐Energy and Low‐Cost Li‐Ion Batteries