Research progress in high voltage spinel LiNi0.5Mn1.5O4 material

Santhanam, R.; Rambabu, B.

doi:10.1016/j.jpowsour.2010.03.067

Cited by 515 publications

(331 citation statements)

References 108 publications

(151 reference statements)

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“…As a prominent example, the Mn-rich LiMn2-xNixO4 electrodes [292][293][294][295][296][297][298][299], which consist primarily of Mn 4+ , should not succumb to such undesirable interactions with electrolytes. Substitution of Mn with Ni, as opposed to other transition metals, has been met favourably due to good cycling stability, access to the Ni 4+/3+ redox couple below 4.9 V and the appearance of only one distinct plateau in the voltage profile (~4.7 V), compared to a bi-plateauing afforded by other transition metals [299]. In particular, 5 V spinel LiMn1.5Ni0.5O4 electrodes have attracted considerable attention in recent times and are reviewed in some detail by Santhanam and Rambabu [299].…”

Section: Mixed Spinel and Layered Oxidesmentioning

confidence: 99%

“…Substitution of Mn with Ni, as opposed to other transition metals, has been met favourably due to good cycling stability, access to the Ni 4+/3+ redox couple below 4.9 V and the appearance of only one distinct plateau in the voltage profile (~4.7 V), compared to a bi-plateauing afforded by other transition metals [299]. In particular, 5 V spinel LiMn1.5Ni0.5O4 electrodes have attracted considerable attention in recent times and are reviewed in some detail by Santhanam and Rambabu [299]. A few drawbacks of LiMn1.5Ni0.5O4 electrodes, however, mar their application: The formation of an impurity phase LixNi1-xO seemingly worsens electrochemical performance over time and while accessible, the Ni 4+/3+ redox couple falls at potentials where electrolyte decomposition is prevalent.…”

Section: Mixed Spinel and Layered Oxidesmentioning

confidence: 99%

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Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

et al. 2013

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Access to the full text of the published version may require a subscription. Rights © Tsinghua University Press and Springer-Verlag Berlin ABSTRACTThe performance of the lithium-ion cell is heavily dependent on the ability of the host electrodes to accommodate and release Li + ions from the local structure. While the choice of electrode materials may define parameters such as cell potential and capacity, the process of intercalation may be physically limited by the rate of solid-state Li + diffusion. Increased diffusion rates in lithium-ion electrodes may be achieved through a reduction in the diffusion path, accomplished by a scaling of the respective electrode dimensions.In addition, some electrodes may undergo large volume changes associated with charging and discharging, the strain of which, may be better accommodated through nanostructuring. Failure of the host to accommodate such volume changes may lead to pulverisation of the local structure and a rapid loss of capacity. In this review article, we seek to highlight a number of significant gains in the development of nanostructured lithium-ion battery architectures (both anode and cathode), as drivers of potential next-generation electrochemical energy storage devices.

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Section: Mixed Spinel and Layered Oxidesmentioning

confidence: 99%

Section: Mixed Spinel and Layered Oxidesmentioning

confidence: 99%

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

et al. 2013

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“…Therefore, LIBs using LNMO as positive electrode are expected to provide higher power/energy density. [1,2] As the electrochemical properties of an electrode are determined by the phase, purity, structure, size, and morphology of the material, a number of efforts have been devoted to develop synthetic routes to obtain high-purity LNMO with optimized microstructures and suitable size that enable an improved performance. Generally, different preparation methods, such as the solid state method [3], coprecipitation method [4][5][6][7], sol-gel preparation [8,9], the molten salt method [10], hydrothermal synthesis [11] and others, have been used to produce LNMO with different morphologies and particle sizes ranging from nanometers to microns.…”

Section: Introductionmentioning

confidence: 99%

Optimized conditions for glycine-nitrate-based solution combustion synthesis of LiNi0.5Mn1.5O4 as a high-voltage cathode material for lithium-ion batteries

Chen

Akiyama

2014

Electrochimica Acta

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This paper describes the glycine-nitrate-based solution combustion synthesis of LiNi 0.5 Mn 1.5 O 4 as a high-voltage cathode material for lithium-ion batteries. The morphology, size, and crystallinity of the products were dependent on the synthesis conditions like glycine amount and calcination temperature and duration, as investigated in particular by X-ray diffraction and scanning electron microscopy, which likewise influenced their electrochemical properties. The electrochemical performance was characterized by galvanostatic charge-discharge cycling. The product obtained at a glycine/nitrate ratio of 1, which was calcined at 800 ºC for 24 h, indicated the best charge-discharge cycling performance. The sample showed an initial discharge capacity of 124.9 mAh/g and could retained 97.20% of the capacity after 50 cycles at a charge-discharge rate of 1 C. The sample also exhibited a good high-rate capability, indicating a high discharge capacity of 98 mAh/g at a rate of 10 C.

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“…LiNi 0.5 Mn 1.5 O 4 spinel exhibits a voltage of about 4.7 V [1][2][3][4], which is higher than other electrode materials like LiMn 2 O 4 (4 V [5]), LiCoO 2 (4 V [6]) and LiFePO 4 (3.4 V [7]). In the past decade, many methods have been used to synthesize this high voltage material, including solid-state reactions [8][9][10], sol-gel processes [11,12], and co-precipitation [13,14]. The properties of the synthesized LiNi 0.5 Mn 1.5 O 4 samples are strongly influenced by the synthetic method.…”

mentioning

confidence: 99%

“…The properties of the synthesized LiNi 0.5 Mn 1.5 O 4 samples are strongly influenced by the synthetic method. Samples typically contain Li x Ni 1-x O 2 as an impurity in the products, especially those produced by solid-state methods [8][9][10], and this secondary phase is formed because of oxygen loss at high temperatures. In addition, the oxygen loss reaction results in the generation of Mn 3+ ions which can further deteriorate the electrochemical performance.…”

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confidence: 99%

Nonstoichiometric Li1±x Ni0.5Mn1.5O4 with different structures and electrochemical properties

et al. 2012

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Li 1±x Ni 0.5 Mn 1.5 O 4 (x=0.05, 0) spinel powders were synthesized using a solid-state reaction. Their structures were characterized by X-ray diffraction, scanning electron microscopy and Raman spectroscopy. Their electrochemical properties for use as active cathode materials in lithium-ion batteries were measured. The LiNi 0. [15]. The oxygen-deficient composition LiNi 0.5 Mn 1.5 O 4-x is stable at temperatures over 800°C, but, when annealed at 700°C, the symmetry changes to P4 3 32. The 3 Fd m phase has a lower impedance and hence higher capacity at high rates. In addition, the cycle performance of the P4 3 32 phase is worse than that of the 3 Fd m phase because it must form an intermediate 3 Fd m phase during Li extraction. In addition to the annealing process, the synthetic method can also influence the space group of the LiNi 0.5 Mn 1.5 O 4 products [16,17].

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Research progress in high voltage spinel LiNi0.5Mn1.5O4 material

Cited by 515 publications

References 108 publications

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

Evaluating the performance of nanostructured materials as lithium-ion battery electrodes

Optimized conditions for glycine-nitrate-based solution combustion synthesis of LiNi0.5Mn1.5O4 as a high-voltage cathode material for lithium-ion batteries

Nonstoichiometric Li1±x Ni0.5Mn1.5O4 with different structures and electrochemical properties

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