Synthesis of high capacity cathodes for lithium-ion batteries by morphology-tailored hydroxide co-precipitation

Wang, Dapeng; Belharouak, Ilias; Ortega, Luis H.; Zhang, Xiaofeng; Xu, Rui; Zhou, Dehua; Zhou, Guangwen; Amine, Khalil

doi:10.1016/j.jpowsour.2014.10.016

Cited by 66 publications

(64 citation statements)

References 35 publications

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“…A variety of methods have been used to synthesize Li-rich oxides, including coprecipitation [110,111], solid-state reaction [112], sol-gel [98], combustion [113], molten salt [114], spray pyrolysis [115], hydrothermal [116] and other methods [95,117]. Li[Li 0.2 Mn 0.…”

Section: Lithium-rich Layered Oxidesmentioning

confidence: 99%

High-energy cathode materials for Li-ion batteries: A review of recent developments

Zhang

Xia

et al. 2015

Sci. China Technol. Sci.

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Lithium ion batteries (LIBs) represent one of the most promising solutions for environmentally friendly transportation such as electric vehicles. The demand for high energy density, low cost and environmentally friendly batteries makes high-capacity cathode materials very attractive for future LIBs. Layered LiNi x Co y Mn z O 2 (x+y+z=1), Li-rich oxides and Li-V-O compounds have attracted much attention due to their high capacities in recent years. In this review, we focus on the state-of-the-art research activities related to LiNi x Co y Mn z O 2 , Li-rich oxides and Li-V-O compounds, including their structures, reaction mechanisms during cycling, challenges and strategies that have been studied to improve their electrochemical performances. layered LiNi x Co y Mn z O 2 , Li-rich layered oxide, Li-V-O compound, cathode material, Li-ion battery Citation: Zhang Y D, Li Y, Xia X H, et al. High-energy cathode materials for Li-ion batteries: A review of recent developments. Sci China Tech Sci,

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Section: Lithium-rich Layered Oxidesmentioning

confidence: 99%

High-energy cathode materials for Li-ion batteries: A review of recent developments

Zhang

Xia

et al. 2015

Sci. China Technol. Sci.

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“…In subsequent cycles, the material structure continues to degrade, which results in continuous capacity deterioration. Fortunately, attempts have been effectively made to improve the performance and structural stability of Li-rich cathode materials, such as surface modification [19,20], structure and morphology controlling [21], and salt concentrations [22].…”

Section: Introductionmentioning

confidence: 99%

Stabilizing Li-rich NMC Materials by Using Precursor Salts with Acetate and Nitrate Anions for Li-ion Batteries

Hamad

Xing

2019

Batteries

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Lithium-rich layered oxide cathode materials of Li1.2Mn0.5100Ni0.2175Co0.0725O2 have been synthesized using metal salts with acetate and nitrate anions as precursors in glycerol solvent. The effects of the precursor metal salts on particle size, morphology, cationic ordering, and ultimately, the electrode performance of the cathode powders have been studied. It was demonstrated that the use of cornstarch as a gelling agent with nitrate-based metal salts results in a reduction of particle size, leading to higher surface area and initial discharge capacity. However, the cornstarch gelling effect was minimized when acetate salts were used. As observed in the Fourier-transform infrared spectroscopy analysis, cornstarch can react with acetates to form acetyl groups during the synthesis, effectively preventing the cornstarch gel from capping the particles, thus leading to larger particles. A tradeoff was found when nitrate and acetate salts were mixed in the synthesis. It was shown that the new cathode powder has the best cationic ordering and capacity retention, promising a much stable Li-rich cathode material for lithium-ion batteries.

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“…x > 0.6 in Li 1-x Ni 1/3 Co 1/3 Mn 1/3 O 2 corresponding to a specific discharge capacity beyond ∼ 160 mAh g −1 ), however, the layered structure will be considerably damaged by oxygen release. 8,12 To improve the cycling stability of NCM111 at high cutoff voltages, tremendous efforts have been undertaken on morphological control, 7,[13][14][15] because the shape and particle size of the active materials can significantly affect the reaction mechanism during cycling. For Li-rich materials, having a layered structure with similarity to NCM111, Dahn et al 16 proposed a surface/bulk two-phase reaction mechanism depending on the inner particle Li-diffusion path lengths.…”

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confidence: 99%

(De)Lithiation Mechanism of Hierarchically Layered LiNi_1/3Co_1/3Mn_1/3O₂ Cathodes during High-Voltage Cycling

Hua

Schwarz

Knapp

et al. 2018

J. Electrochem. Soc.

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In view of the requirements for high-energy lithium ion batteries (LIBs), hierarchically layered LiNi 1/3 Co 1/3 Mn 1/3 O 2 (NCM111) cathode materials have been prepared using a hydroxide coprecipitation method and subsequent high-temperature solid-state reaction. The diffraction results show that the synthesized NCM111 has a well-defined layered hexagonal structure. The initial specific discharge capacity of a Li/NCM111 cell is 204.5 mAh g −1 at a current density of 28 mA g −1 between 2.7 and 4.8 V. However, the cell suffers from poor capacity retention over extended charge-discharge cycles. The structural evolution of NCM111 electrode during electrochemical cycling is carefully investigated by in situ high-resolution synchrotron radiation diffraction. It is found that the nanodomain formation of a layered hexagonal phase H3 and a cubic spinel phase after charging to voltages above 4.6 V is the main source for the structural collapse in c direction and the poor cycling performance. This process is accompanied by the removal of oxygen, the transition metal (TM) migration and the crack generation in the nanodomains of the primary particles. These results may help to better understand the structural degradation of layered cathodes in order to develop high energy density LIBs.

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Synthesis of high capacity cathodes for lithium-ion batteries by morphology-tailored hydroxide co-precipitation

Cited by 66 publications

References 35 publications

High-energy cathode materials for Li-ion batteries: A review of recent developments

High-energy cathode materials for Li-ion batteries: A review of recent developments

Stabilizing Li-rich NMC Materials by Using Precursor Salts with Acetate and Nitrate Anions for Li-ion Batteries

(De)Lithiation Mechanism of Hierarchically Layered LiNi_1/3Co_1/3Mn_1/3O₂ Cathodes during High-Voltage Cycling

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Synthesis of high capacity cathodes for lithium-ion batteries by morphology-tailored hydroxide co-precipitation

Cited by 66 publications

References 35 publications

High-energy cathode materials for Li-ion batteries: A review of recent developments

High-energy cathode materials for Li-ion batteries: A review of recent developments

Stabilizing Li-rich NMC Materials by Using Precursor Salts with Acetate and Nitrate Anions for Li-ion Batteries

(De)Lithiation Mechanism of Hierarchically Layered LiNi1/3Co1/3Mn1/3O2 Cathodes during High-Voltage Cycling

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(De)Lithiation Mechanism of Hierarchically Layered LiNi_1/3Co_1/3Mn_1/3O₂ Cathodes during High-Voltage Cycling