Synthesis and Electrochemical Studies of Spinel Phase LiMn2 O 4 Cathode Materials Prepared by the Pechini Process

Liu, W.; Farrington, G. C.; Chaput, Frédéric; Dunn, Bruce

doi:10.1149/1.1836552

Cited by 380 publications

(119 citation statements)

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“…In these new techniques, wet processes with many types were attempted to obtain good cycle life. Most suitable process is thought to be Pechini process [1] among such wet processes. Moreover, the spinels with good cycle performance were obtained by melt impregnation technique [2,3], which is the preparation method by the calcination of MnO2 soaked lithium salt.…”

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confidence: 99%

Structural stability in partially substituted lithium manganese spinel oxide cathode

Wakihara

Ikuta

Uchimoto

2002

Ionics

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Abstract. LiMn204 is one of the most promising cathode materials for lithium secondary battery because of natural abundance of manganese in the crust and its low toxicity to environment.Lithium ion can almost reversibly intercalate into or deintercalate fxom lithium manganese spinel oxide LiMn204. A part of substitution of manganese with other transition metals brings the improvement of cycle life. We focused on the local structure of the spinels and considered the effect of the local distortion on the cycle life of the spinel cathodes.

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confidence: 99%

Structural stability in partially substituted lithium manganese spinel oxide cathode

Wakihara

Ikuta

Uchimoto

2002

Ionics

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“…The wet-chemical techniques could be classified in four groups according the salts and complexing agent used (Table 12.1). They are namely sol-gel [9,10], co-precipitation [11,12], combustion [13], pyrolysis [14], polyol [15], Pechini process [16,17], etc. ; they were employed for the preparation of nanostructured metal oxides devoted to electrodes for Li-ion batteries.…”

Section: Wet-chemical Methodsmentioning

confidence: 99%

Nanotechnology for Energy Storage

et al. 2016

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Nanomaterials of metal oxides have been intensively studied as anode and cathode materials for lithium-ion batteries (LiBs) aimed at achieving higher specific capacities and high power density. It is worth pointing out that the word "nanotechnology" has become very popular and is used to describe many types of research where the characteristic dimensions are much less than 1 μm. For example, continued improvements in lithography to design computer components have resulted in line widths that are less than one micron: this work is often called "nanotechnology." Many of the exponentially improving trends in computer hardware capability have remained steady for the last 50 years. Today "nanosciences" are fairly widespread with the belief that these trends are likely to continue for at least several years; however, new aspects are now considered in the field of energy transformation. In this respect, the classic 1959 article "There's plenty of room at the bottom" by Richard P. Feynman discusses the limits of miniaturization and forecast the ability to ". . .arrange the atoms the way we want; the very atoms, all the way down!" [1]. Nano-structured materials are distinguished from conventional polycrystalline materials by the size of the structural entities that comprises them, microstructures comprising nanoscale domains in at least one dimension. The ability to control a material's structure and composition at the nano-level has demonstrated that materials and devices having properties intrinsically different from their polycrystalline counterparts can be fabricated. As tailoring of fundamental properties becomes possible at the atomic level, the prospect of developing novel materials and devices with new applications become viable.Conventional rechargeable Li batteries exhibit rather poor rate performance, even compared with old technologies such as lead-acid [2]. Achieving high rate rechargeable Li-ion batteries depends ultimately of the dimension of the active particles for both negative and positive electrodes. One of the prospective solutions for the preparation of electrodes with high power density is the choice of

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“…The Pechini method is a wet-chemical technique that is easy to perform and yields oxides with high chemical homogeneity. It is based on the ability of an alpha-hydroxy carboxylic acids to form a polybasic acid chelate (Liu et al, 1996;Pechini, 1967;Samarasinghe et al, 2014;Samarasinghe et al, 2008). When heating with a polyalcohol, the chelate undergoes polyesterification.…”

Section: Research Articlementioning

confidence: 99%

Investigation of MgTiO3 as an anode material for rechargeable Li-ion batteries

2016

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Magnesium Titanate (MgTiO 3 ) is a common and commercially available dielectric material used in electronics applications. The potential of using MgTiO 3 as an anode material in rechargeable Li-ion batteries has been investigated under this study. MgTiO 3 particles were synthesized by both wet-chemical Pechini method and solid state ball milling method. The subsequent material characterizations were carried out using X-ray diffraction and scanning electron microscopic techniques. The electrochemical performance of MgTiO 3 as an anode material in Li-ion rechargeable battery was carried out with Li metal electrode in coin half cells. For wet-chemically synthesized MgTiO 3, the potentials associated with lithiation were 1.14 V and 0.76 V vs Li/Li + with an initial discharge capacity of 103 mAh/g at C/10 rate. Lithiation potential for ball milled MgTiO 3 was found to be at 1.3 V vs Li/Li + with an initial discharge of 63 mAh/g cycled at C/10 rate.

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Synthesis and Electrochemical Studies of Spinel Phase LiMn2 O 4 Cathode Materials Prepared by the Pechini Process

Cited by 380 publications

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Structural stability in partially substituted lithium manganese spinel oxide cathode

Structural stability in partially substituted lithium manganese spinel oxide cathode

Nanotechnology for Energy Storage

Investigation of MgTiO3 as an anode material for rechargeable Li-ion batteries

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