Synthesis of LiNi0.65Co0.25Mn0.1O2 as cathode material for lithium-ion batteries by rheological phase method

Cheng, Cuixia; Tan, Long; Hu, Anzheng; Liu, Haowen; Huang, Xintang

doi:10.1016/j.jallcom.2010.07.105

Cited by 18 publications

(8 citation statements)

References 20 publications

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“…It is well known that preparation method has an important influence on the structure and electrochemical performance of materials. The rheological phase method, as a simple and effective synthesis route to ensure the mixing of different reactants at the molecular level, has been applied in the preparation of cathode materials such as LiNi 0.65 Co 0.25 Mn 0.1 O 2 [16], LiNi 1/2 Mn 1/3 V 1/6 O 2 [17] and LiNi 1/3 Co 1/3 Mn 1/3 O 2 [18] in recent years. This method enabled the final products with fewer defects and homogeneous structure, thereby effectively improving the electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Electrochemical Properties of LiNi2/3Co1/6Mn1/6O2 Cathode Material for Lithium-Ion Batteries

Zhu

Liu

et al. 2021

Materials

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The cathode material LiNi2/3Co1/6Mn1/6O2 with excellent electrochemical performance was prepared successfully by a rheological phase method. The materials obtained were characterized by X-ray diffraction, scanning electron microscopy, electrochemical impedance spectroscopy and charge-discharge tests. The results showed that both calcination temperatures and atmosphere are very important factors affecting the structure and electrochemical performance of LiNi2/3Co1/6Mn1/6O2 material. The sample calcinated at 800 °C under O2 atmosphere displayed well-crystallized particle morphology, a highly ordered layered structure with low defects, and excellent electrochemical performance. In the voltage range of 2.8–4.3 V, it delivered capacity of 188.9 mAh g−1 at 0.2 C and 130.4 mAh g−1 at 5 C, respectively. The capacity retention also reached 93.9% after 50 cycles at 0.5 C. All the results suggest that LiNi2/3Co1/6Mn1/6O2 is a promising cathode material for lithium-ion batteries.

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Section: Introductionmentioning

confidence: 99%

Preparation and Electrochemical Properties of LiNi2/3Co1/6Mn1/6O2 Cathode Material for Lithium-Ion Batteries

Zhu

Liu

et al. 2021

Materials

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“…Li[Ni 1/3 Co 1/3 Mn 1/3 ]O 2 , a special case of Li[Ni x Co 1−2x Mn x ]O 2 system, has been considered to be one of the most promising candidate cathode materials for LIB [6,7]. This material attracts significant interests because the combination of nickel, manganese and cobalt provides higher reversible capacity, better cycle performance, lower cost and less toxicity compared with LiCoO 2 [8,9].…”

Section: Introductionmentioning

confidence: 99%

Effects of precipitator on the morphological, structural and electrochemical characteristics of Li[Ni1/3Co1/3Mn1/3]O2 prepared via carbonate coprecipitation

Deng

Zhang

et al. 2011

Journal of Alloys and Compounds

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“…Ren et al [10] has reported that the LiNi 1/3 Co 1/3 Mn 1/3 O 2 cathode material prepared by rheological phase method exhibits better electrochemical performance than via conventional solid-state method owing to higher specific surface area, lower cation mixing, higher reversible discharge capacity, and better cycling stability. Cheng et al [11] also prepared LiNi 0.65 Co 0.25 Mn 0.1 O 2 cathode material via rheological phase method. The results showed that the prepared powders have a higher ordered layer NaFeO 2 structure, smaller particle size, and lager surface area, which are all favorable for electrochemical performances.…”

Section: Introductionmentioning

confidence: 99%

Oxalic acid-assisted preparation of LiFePO4/C cathode material for lithium-ion batteries

Dou

Kang

Wumaier

et al. 2011

J Solid State Electrochem

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LiFePO 4 /C composite is synthesized by oxalic acid-assisted rheological phase method. Fe 2 O 3 and LiH 2 PO 4 are chosen as the starting materials, sucrose as carbon sources, and oxalic acid as the additive. The crystalline structure and morphology of the products are characterized by X-ray diffraction and field emission scanning electron microscopy. The charge-discharge kinetics of LiFePO 4 electrode is investigated using cyclic voltammetry and electrochemical impedance spectroscopy. It is found that the introduction of appropriate amount of oxalic acid leads to smaller particle sizes, more homogeneous size distribution, and some Fe 2 P produced in the final products, resulting in reduced polarization, impedance, and improved Li + ion diffusion coefficient. The best cell performance is delivered by the sample with R=1.5 (R of the molar ratio of oxalic acid to LiH 2 PO 4 ). Its discharge capacity is 154 mAh g −1 at 0.2 C rate and 120 mAh g −1 at 5.0 C rate. At the same time, it exhibits an excellent cycling stability; no obvious decrease even after 1,000 cycles at 1.0 C rate.

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Synthesis of LiNi0.65Co0.25Mn0.1O2 as cathode material for lithium-ion batteries by rheological phase method

Cited by 18 publications

References 20 publications

Preparation and Electrochemical Properties of LiNi2/3Co1/6Mn1/6O2 Cathode Material for Lithium-Ion Batteries

Preparation and Electrochemical Properties of LiNi2/3Co1/6Mn1/6O2 Cathode Material for Lithium-Ion Batteries

Effects of precipitator on the morphological, structural and electrochemical characteristics of Li[Ni1/3Co1/3Mn1/3]O2 prepared via carbonate coprecipitation

Oxalic acid-assisted preparation of LiFePO4/C cathode material for lithium-ion batteries

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