High performance lithium cobalt oxides prepared in molten KCl for rechargeable lithium-ion batteries

Liang, Hongying; Qiu, Xinping; Zhang, Shicao; He, Zhoutong; Zhu, Wentao; Chen, Liquan

doi:10.1016/j.elecom.2004.03.004

Cited by 44 publications

(26 citation statements)

References 16 publications

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“…Before milling, the lattice parameters were a =2.816 Å and c =14.074 Å and after milling the lattice parameters were a =2.815 Å and c =14.033 Å. The lattice parameters were all consistent with other reports of LCO materials in the literature . Our LCO particles both before and after milling are likely too large to observe significant crystallite size effects on the lattice parameters as reported by others in the literature for nanocrystalline LCO .…”

Section: Resultssupporting

confidence: 86%

High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

Koenig

2016

ChemistrySelect

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One attribute that has limited performance for some lithiumion battery active material systems is large particle size. While many methods have been reported in the literature for producing high-performance sub-micrometer sized battery particles, often these procedures are difficult to adapt to large battery electrode powder production and/or the processing is relatively expensive compared to traditional methods. We report a highly scalable process to produce high performance sub-micrometer battery active material using an initial demonstration cathode chemistry, LiCoO 2 (LCO). We adopted a template-based process which took advantage of a cobalt oxalate precursor material with a rod morphology. Lithiation of the precursor via calcination produced loosely connected sub-micrometer sized LCO particles which were easily dispersed into individual particles through a low energy mechanical method. The sub-micrometer sized LCO particulates exhibited excellent electrochemical performance as lithium-ion battery cathode active materials, including high discharge capacity, rate capability, and coulombic efficiency.

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Section: Resultssupporting

confidence: 86%

High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

Koenig

2016

ChemistrySelect

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“…Synthesis in low-temperature inorganic molten salts is one potential process for this purpose; in particular, for the synthesis of intercalation oxide electrode materials such as LiCoO 2, LiMn 2 O 4 , and other compounds [37][38][39][40]. Nevertheless, there have been few reports of the synthesis of Li 4 Ti 5 O 12 anode material by the molten salt process.…”

Section: Introductionmentioning

confidence: 98%

Basic molten salt process—A new route for synthesis of nanocrystalline Li4Ti5O12–TiO2 anode material for Li-ion batteries using eutectic mixture of LiNO3–LiOH–Li2O2

Rahman

Wang

Hassan

et al. 2010

Journal of Power Sources

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“…Recently, the molten salt (MS) method is widely used for the preparation of unitary oxides, electrode materials, and multicomponent oxides [7][8][9][10][11][12][13][14][15][16]. MSs such as LiCl, LiNO 3 , Li 2 SO 4 , LiOH do not only act as solvents but also take part in the reaction [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Low-Temperature Synthesis of Lithium Manganese Oxide Using LiCl-Li₂CO₃and Manganese Acetate Eutectic Mixture

Helan¹,

Berchmans

2011

Materials and Manufacturing Processes

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Fine crystalline LiMn 2 O 4 powders have been prepared by molten salt synthesis (MSS) at 500 C, using an eutectic mixture of lithium chloride, lithium carbonate, and manganese acetate salts. Thermogravimetric and differential thermal analysis (TGA/DTA) measurements are performed to investigate the thermal decomposition behavior of the precursor salts. The single-phase cubic structure of LiMn 2 O 4 is confirmed by X-ray powder diffraction analysis. The lattice parameter is found to be 8.1967 A . The molecular structure of the compound is studied using FT-IR and Raman spectroscopy. The chemical composition and the purity of the synthesized powders are determined using atomic absorption spectroscopy (AAS), energy-dispersive X-ray spectroscopy (EDAX), and carbon hydrogen nitrogen sulfur (CHNS) analyses. The magnetic behavior of the compound is examined using electron paramagnetic resonance (EPR) spectroscopy. The morphology of the powders is assessed by scanning electron microscopy (SEM). The average particle size of the powders is ranging between 10-20 m. This investigation shows that pure crystalline lithium manganese oxide powders can be conveniently synthesized by molten flux method.

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High performance lithium cobalt oxides prepared in molten KCl for rechargeable lithium-ion batteries

Cited by 44 publications

References 16 publications

High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

Basic molten salt process—A new route for synthesis of nanocrystalline Li4Ti5O12–TiO2 anode material for Li-ion batteries using eutectic mixture of LiNO3–LiOH–Li2O2

Low-Temperature Synthesis of Lithium Manganese Oxide Using LiCl-Li₂CO₃and Manganese Acetate Eutectic Mixture

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High performance lithium cobalt oxides prepared in molten KCl for rechargeable lithium-ion batteries

Cited by 44 publications

References 16 publications

High‐Performance LiCoO2 Sub‐Micrometer Materials from Scalable Microparticle Template Processing

High‐Performance LiCoO2 Sub‐Micrometer Materials from Scalable Microparticle Template Processing

Basic molten salt process—A new route for synthesis of nanocrystalline Li4Ti5O12–TiO2 anode material for Li-ion batteries using eutectic mixture of LiNO3–LiOH–Li2O2

Low-Temperature Synthesis of Lithium Manganese Oxide Using LiCl-Li2CO3and Manganese Acetate Eutectic Mixture

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High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

High‐Performance LiCoO₂ Sub‐Micrometer Materials from Scalable Microparticle Template Processing

Low-Temperature Synthesis of Lithium Manganese Oxide Using LiCl-Li₂CO₃and Manganese Acetate Eutectic Mixture