Expanding the Rate Capabilities of the LiNi[sub 0.5]Mn[sub 1.5]O[sub 4] Spinel by Exploiting the Synergistic Effect Between Nano and Microparticles

Arrebola, José Carlos; Caballero, Álvaro; Hernán, L.; Morales, J.

doi:10.1149/1.2116147

Cited by 44 publications

(26 citation statements)

References 21 publications

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“…Although rate performance can be significantly improved by preparing nanosized materials3334, the application of nanosized materials is challenged by the following two facts: (1) they cannot be coated on the current collector as densely as micrometer-sized materials35, which reduces the energy density and (2) the very large specific surface area of nanosized materials cause more side reactions such as decomposition of the electrolyte and dissolution of Mn, leading to a lower durability and cycling stability36. Here, HI-LNMO with excellent rate capability has a BET specific surface area of as low as 2.1 m 2 g −1 .…”

Section: Resultsmentioning

confidence: 99%

Investigation on preparation and performance of spinel LiNi0.5Mn1.5O4 with different microstructures for lithium-ion batteries

Xue

Wang

Zheng

et al. 2015

Sci Rep

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The high voltage spinel LiNi0.5Mn1.5O4 is a promising cathode material in next generation of lithium ion batteries. In this study, LiNi0.5Mn1.5O4 with various particle microstructures are prepared by controlling the microstructures of precursors. LiNi0.5Mn1.5O4 spinel samples with solid, hollow and hierarchical microstructures are prepared with solid MnCO3, hollow MnO2 and hierarchical Mn2O3 as precursor, respectively. The homemade spinel materials are investigated and the results show that the content of Mn3+ and impurity phase differ much in these three spinel samples obtained under the same calcining and annealing conditions. It is revealed for the first time that an inhomogeneous migration of atoms may introduce Mn3+ and impurity phase in the spinel. The hierarchical microstructure with the primary particles interconnected is optimal for electrode materials because this microstructure has a higher conductivity between the interconnected primary particles and appropriate specific surface area. LiNi0.5Mn1.5O4 in this microstructure has the best rate capability and also the best long-term cycling stability.

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Section: Resultsmentioning

confidence: 99%

Investigation on preparation and performance of spinel LiNi0.5Mn1.5O4 with different microstructures for lithium-ion batteries

Xue

Wang

Zheng

et al. 2015

Sci Rep

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“…It is common that after precursors are obtained by wet method, less energy or lower reaction temperature are needed to turn the precursors into final products. Wet chemical methods include coprecipitation method [57][58][59][60], polymerpyrolysis method [61,62], ultrasonic-assisted co-precipitation (UACP) method [63,64], solgel method [65][66][67], radiated polymer gel method [68], sucrose-aided combustion method [69], spray-drying method [70], emulsion drying method [71], composite carbonate process [72], molten salt method [73,74], mechanochemical process [75], poly (methyl methacrylate) (PMMA)-assisted method [76] ultrasonic spray pyrolysis [77], polymer-assisted synthesis [78], combinational annealing method [79], pulsed laser deposition [80], electrophoretic deposition [81], spin-coating deposition [82], carbon combustion synthesis [83], soft combustion reaction method [84], pulsed laser deposition [85], spray drying and postannealing [86], rheological method [87], polymer-mediated growth [88], self-reaction method [89], internal combustion type spray pyrolysis [90,91], a chloride-ammonia coprecipitation method [92], a novel carbon exo-templating method [93], flame type spray pyrolysis [94], self-combustion reaction (SCR) …”

Section: Mechanism Of High Voltage and Insertion/deinsertionmentioning

confidence: 99%

LiNi0.5Mn1.5O4 Spinel and Its Derivatives as Cathodes for Li-Ion Batteries

Liu¹

2012

Lithium Ion Batteries - New Developments

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“…Figure 7 shows the capacity delivered by various half cells as a function of the number of cycles. Two types of electrodes were studied that were prepared from (i) microparticles and (ii) a 50 : 50 w/w mixture of micro-and nanoparticles (composite electrode) obtained by mechanochemical activation for 15 minutes [30]. Tests were conducted at two different rates (C/4 and 2C).…”

Section: Nanometric Lini 05 Mn 15 O 4 Versus LImentioning

confidence: 99%

Improving the Performance of Lithium‐Ion Batteries by Using Spinel Nanoparticles

Arrebola

Caballero

Hernán

et al. 2008

Journal of Nanomaterials

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In this work, we examined the use of nanospinels to construct batttery electrodes. We chose two spinels suitable as cathode materials (LiMn2O4andLiNi0.5Mn1.5O4, which are representative of 4 and 5 V versus Li metal, resp.) and one providing good results as anode (Li4Ti5O12). In order to ensure good cell performance, nanometric particles must meet another requirement; thus they should contain few surface or bulk defects (i.e., they should be highly crystalline). Because the synthesis of such spinels usually requires a thermal treatment, ensuring that they will meet both requirements entails accuratly controlling in the synthesis conditions. Thermal decomposition of nanooxalate in the spinel-conaining elements obtained by mechanochenical activation in the presence of polymers provides a simple, effective route for this purpose. We prepared two types of hybrid lithium-ion batteries usingLiMn2O4andLiNi0.5Mn1.5O4as cathode materials, andLi4Ti5O12as anode material. The electrochemical properties of these cells were compared with those of a similar configuration made from micrometric particles. The nano-nano configuration exhibited higher reversibility and better performance than the micro-micro configuartion in both types of cells, possibly as a result of lithium ions in the former being able to migrate more easily into the electrode material.

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Expanding the Rate Capabilities of the LiNi[sub 0.5]Mn[sub 1.5]O[sub 4] Spinel by Exploiting the Synergistic Effect Between Nano and Microparticles

Cited by 44 publications

References 21 publications

Investigation on preparation and performance of spinel LiNi0.5Mn1.5O4 with different microstructures for lithium-ion batteries

Investigation on preparation and performance of spinel LiNi0.5Mn1.5O4 with different microstructures for lithium-ion batteries

LiNi0.5Mn1.5O4 Spinel and Its Derivatives as Cathodes for Li-Ion Batteries

Improving the Performance of Lithium‐Ion Batteries by Using Spinel Nanoparticles

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