Effect of cobalt substitution on cationic distribution in LiNi1 − y CoyO2 electrode materials

Rougier, Aline; Saadoune, Ismae͏̈l; Gravereau, P.; Willmann, P.; Delmas, Claude

doi:10.1016/s0167-2738(96)00370-0

Cited by 326 publications

(236 citation statements)

References 9 publications

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“…The structural instability, high cost, and non-environmental friendliness of cobalt materials make OPEN ACCESS exploration of LiNiO 2 materials attractive for Li-ion batteries [10]. However, the cation ordering associated with LiNiO 2 has prevented the full realization of this electrode material [11][12][13]. This led to the investigation of solid solution between LiNiO 2 and LiCoO 2 with other dopants such as Fe and Al, resulting in material systems such as LiNi 1-y [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Optimization and Characterization of Lithium Ion Cathode Materials in the System (1 – x – y)LiNi0.8Co0.2O2 • xLi2MnO3 • yLiCoO2

2010

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Abstract:There is ongoing effort to identify novel materials that have performance better than LiCoO 2 . The objective of this work is to explore materials in the system (1 -x -y) LiNi 0.8 Co 0.2 O 2 • xLi 2 MnO 3 • yLiCoO 2 . A ternary composition diagram was used to identify sample points, and compositions for testing were initially chosen. Detailed characterization of the synthesized materials was done, including Rietveld Refinement of XRD data, XPS analysis for valence state of transition-metals, SEM for microstructure details, and TGA for thermal stability of the materials. Electrochemical performance showed that discharge capacities on the order of 230 mAh/g were obtained. Preliminary results showed that these materials exhibit good cycling capabilities thereby positioning these materials as promising for Li-ion battery applications.

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Section: Introductionmentioning

confidence: 99%

Optimization and Characterization of Lithium Ion Cathode Materials in the System (1 – x – y)LiNi0.8Co0.2O2 • xLi2MnO3 • yLiCoO2

2010

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“…Mg, 42 Al, 43 Co, [44][45][46][47][48] Ga 49 etc.). All have in common that they allow for a much easier synthesis of the active material.…”

Section: Lithium Cobalt Oxide; Licoomentioning

confidence: 99%

“…46 The compound LiNi 0.7 Co 0.3 O 2 was shown to be working very well and almost one formula unit of lithium can be reversible removed. 44,46 Lithium Manganese Oxide; LiMnO 2 Pure LiMnO 2 (LMO) has received attention as a cheaper and environmental benign alternative to LCO and LNO. One setback is the difficult synthesis of LMO since a direct high temperature synthesis will yield the orthorhombic (Pmmn) phase with corrugated LiO 6 slabs ( Figure 4a).…”

Section: Lithium Cobalt Oxide; Licoomentioning

confidence: 99%

Review—Recent Advances and Remaining Challenges for Lithium Ion Battery Cathodes

Schipper

Erickson

Erk

et al. 2016

J. Electrochem. Soc.

649

497

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Lithium ion batteries have become an integral part of our daily lives. Among a number of different cathode materials nickel-rich LiNi x Co y Mn z O 2 is particularly interesting. The material can deliver high capacities of ∼195 mAh g −1 putting it on the map for electric vehicles. With an increasing nickel content, a number of issues arise in the material limiting its performance. The Li/Ni mixing, highly reactive surface and formation of micro cracks are the most pressing ones. An overview of recent literature exploring these phenomena is herein summarized and were applicable solutions will be highlighted. With the advent of lithium ion batteries (LIB) in 1991 came a rapidly increasing development of consumer electronics.1,2 Soon LIB were the power source of choice for manufacturer of laptop computers and cell phones. While smart phones are getting smaller and have to operate more energy demanding applications LIB have to keep up with the pace. Cell manufactures have developed more refined ways to assemble cells leading to high energy densities of modern LIB for consumer applications. 3,4 In the meantime, scientists have developed better active materials and are constantly improving over existing ones. 5 The early LIB used lithium cobalt oxide (LCO) as cathode and graphite as anode material. LCO has a high tap density making it an ideal choice for small devices. The battery market has grown tremendously over the last 35 years and is expected to increase even more rapidly within the next years. 6 With the new market segment of electrical vehicles (EV) becoming more important every year LIB have found an additional application with a huge potential. Even though fuel cells are a natural competitor for LIB the large commitment necessary to build a hydrogen infrastructure plays into the hands of eager battery suppliers.Electrical propulsion needs battery materials with high capacities to satisfy consumer demands of a ∼500 km driving range long cycle life.4,7 Several materials have been identified as viable candidates for EVs ranging from layered mixed transition metal oxides, layered lithium rich materials and lithium sulfur batteries. [8][9][10][11] The technologically most advanced material option is layered nickel rich LiNi x Co y Mn z O 2 (NCM, x > 0.6) cathodes. The current generation of some EVs is already employing NCM523. Unfortunately, the implementation of higher nickel contents still needs to overcome a number of challenges to be viable. The review at hand will outline the development of the NCM material family with the first emphasis being on the individual endmembers LiCoO 2 , LiNiO 2 and LiMnO 2 . Problems and recent advances of these materials will be outlined. The second emphasis will be on the layered material LiNi x Co y Mn z O 2 with a focus on nickel rich materials. Problems and attempted solutions to mitigate them will be presented.= These authors contributed equally to this work.* Electrochemical Society Fellow. z E-mail: schippf@biu.ac.il Lithium Cobalt Oxide; LiCoO 2The first lithium intercal...

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“…As a consequence, Fe is distributed so as to form FeO 6 octahedra isolated from each other in TeOc 2 layers perpendicular to the (001)-hexagonal direction [22]. In addition, the lattice has a strong two-dimensional character, since above a TeOc 2 layer comes another one vertical to the previous one, to build (100) layers of FeO 6 octahedra sharing corners, and mixed layers of LiO 6 octahedra and PO 4 octahedra.…”

Section: Olivine Lifepo 4 (Lfp)mentioning

confidence: 99%

Comparative Issues of Cathode Materials for Li-Ion Batteries

et al. 2014

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Abstract:After an introduction to lithium insertion compounds and the principles of Li-ion cells, we present a comparative study of the physical and electrochemical properties of positive electrodes used in lithium-ion batteries (LIBs). Electrode materials include three different classes of lattices according to the dimensionality of the Li + ion motion in them: olivine, layered transition-metal oxides and spinel frameworks. Their advantages and disadvantages are compared with emphasis on synthesis difficulties, electrochemical stability, faradaic performance and security issues.

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Effect of cobalt substitution on cationic distribution in LiNi1 − y CoyO2 electrode materials

Cited by 326 publications

References 9 publications

Optimization and Characterization of Lithium Ion Cathode Materials in the System (1 – x – y)LiNi0.8Co0.2O2 • xLi2MnO3 • yLiCoO2

Optimization and Characterization of Lithium Ion Cathode Materials in the System (1 – x – y)LiNi0.8Co0.2O2 • xLi2MnO3 • yLiCoO2

Review—Recent Advances and Remaining Challenges for Lithium Ion Battery Cathodes

Comparative Issues of Cathode Materials for Li-Ion Batteries

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