Li2ZrO3-coated LiNi0.6Co0.2Mn0.2O2 for high-performance cathode material in lithium-ion battery

Sun, Shuting; Du, Chenqiang; Qu, Deyang; Zhang, Xinhe; Tang, Zhiyuan

doi:10.1007/s11581-015-1469-0

Cited by 39 publications

(13 citation statements)

References 39 publications

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“…This problem could be solved by coating the surface of the cathode material with a different material. This surface modification technology was introduced for a LiCoO 2 cathode by coating with metal oxides, such as TiO 2 , Al 2 O 3 , Mg 2 TiO 4 , and NaAlO 2 [2,18,19,20]; LiNi 0.5 Mn 1.5 O 4 cathode by ZrO 2 , ZrP 2 O 7 , and AlPO 4 coating [21,22]; and Li(Ni 0.6 Co 0.2 Mn 0.2 )O 2 cathode by TiO 2 , Al 2 O 3 , and Li 2 ZrO 3 coating [23,24,25]. Among the coating processes, wet chemical processes such as sol-gel and precipitation are widely applied, which typically require 0.3–5 wt % of coating material respect to the cathode material and resulted in substantially inhomogeneous coating.…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Li(Ni0.6Co0.2Mn0.2)O2 Cathode Materials by Nano-Al2O3 to Improve Electrochemical Performance in Lithium-Ion Batteries

Yoo

Kang

et al. 2017

Materials

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Al2O3-coated Li(Ni0.6Co0.2Mn0.2)O2 cathode materials were prepared by simple surface modification in water media through a sol-gel process with a dispersant. The crystallinity and surface morphology of the samples were characterized through X-ray diffraction analysis and scanning electron microscopy observation. The Li(Ni0.6Co0.2Mn0.2)O2 cathode material was of a polycrystalline hexagonal structure and agglomerated with particles of approximately 0.3 to 0.8 μm in diameter. The nanosized Al2O3 particles of low concentration (0.06–0.12 wt %) were uniformly coated on the surface of Li(Ni0.6Co0.2Mn0.2)O2. Measurement of electrochemical properties showed that Li(Ni0.6Co0.2Mn0.2)O2 coated with Al2O3 of 0.08 wt % had a high initial discharge capacity of 206.9 mAh/g at a rate of 0.05 C over 3.0–4.5 V and high capacity retention of 94.5% at 0.5 C after 30 cycles (cf. uncoated sample: 206.1 mAh/g and 90.8%, respectively). The rate capability of this material was also improved, i.e., it showed a high discharge capacity of 166.3 mAh/g after 5 cycles at a rate of 2 C, whereas the uncoated sample showed 155.8 mAh/g under the same experimental conditions.

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Section: Introductionmentioning

confidence: 99%

Surface Modification of Li(Ni0.6Co0.2Mn0.2)O2 Cathode Materials by Nano-Al2O3 to Improve Electrochemical Performance in Lithium-Ion Batteries

Yoo

Kang

et al. 2017

Materials

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“…Figure 8 shows the CV results of three electrodes between 2.75 and 4.5 V with a scanning rate of 0.1 mV s −1 after 50 cycles. A pair of anodic and cathodic peaks in the scan is observed which associated with the oxidation/ reduction reactions of Ni 2+ ⇆ Ni 4+ , indicating that the reversibility of Li + intercalation and deintercalation in the layered crystal structure [38][39][40][41].…”

Section: Thermal Analysis Of the Self-propagating Combustion Productsmentioning

confidence: 96%

The effect of chelating agent on synthesis and electrochemical properties of LiNi0.6Co0.2Mn0.2O2

Zhang

et al. 2020

SN Appl. Sci.

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Ni-rich cathode material is one of the most promising material for Li-ion batteries (LIBs) in portable power and electric vehicles. However, how to recycle waste LIBs cathode materials is very important for environmental protection and resource utilization. LiNi 0.6 Co 0.2 Mn 0.2 O 2 cathode materials were prepared by sol-gel combustion method Using waste LIBs cathode materials as raw materials. The effect of different gels on the crystal structure and morphology of LiNi 0.6 Co 0.2 Mn 0.2 O 2 were studied by X-ray diffraction and scanning electron macroscopy. The electrochemical properties were investigated by charge-discharge testing, cyclic voltammetry and electrochemical impedance spectroscopy. The results showed that the samples contained some residual C and primary crystals have been formed during combustion stage. When glucose was used as gel regent, the sample has the good electrochemical properties with the initial discharge capacity of 176.9 mAh g −1 , initial coulombic efficiency of 87.0% and discharge capacity retention rate of 95.8% after 50 cycles at 0.2 C rate. The results showed that the less the cation mixing, the more complete of hexagonal crystal structure, which induced the decrease of impedance resistance and good reversibility of redox reaction.

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“…The development of highperformance rechargeable batteries with high energy density and long life is thus crucial. Current LIBs, which are the primary power sources for these devices, are plagued by various technical difficulties related to the: i) energy density and capacity of electrodes, [19][20][21] ii) stability of major components, [22][23][24] and iii) economics and eco-friendliness of the manufacturing process for battery materials. [25][26][27][28][29] For (i), the energy density and capacity of batteries, high-capacity materials with high operation voltage are needed to fabricate high-energy-density batteries.…”

Section: Doi: 101002/adma202006019mentioning

confidence: 99%

Gifts from Nature: Bio‐Inspired Materials for Rechargeable Secondary Batteries

Voronina

Sun

2021

Advanced Materials

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Materials in nature have evolved to the most efficient forms and have adapted to various environmental conditions over tens of thousands of years. Because of their versatile functionalities and environmental friendliness, numerous attempts have been made to use bio‐inspired materials for industrial applications, establishing the importance of biomimetics. Biomimetics have become pivotal to the search for technological breakthroughs in the area of rechargeable secondary batteries. Here, the characteristics of bio‐inspired materials that are useful for secondary batteries as well as their benefits for application as the main components of batteries (e.g., electrodes, separators, and binders) are discussed. The use of bio‐inspired materials for the synthesis of nanomaterials with complex structures, low‐cost electrode materials prepared from biomass, and biomolecular organic electrodes for lithium‐ion batteries are also introduced. In addition, nature‐derived separators and binders are discussed, including their effects on enhancing battery performance and safety. Recent developments toward next‐generation secondary batteries including sodium‐ion batteries, zinc‐ion batteries, and flexible batteries are also mentioned to understand the feasibility of using bio‐inspired materials in these new battery systems. Finally, current research trends are covered and future directions are proposed to provide important insights into scientific and practical issues in the development of biomimetics technologies for secondary batteries.

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Li2ZrO3-coated LiNi0.6Co0.2Mn0.2O2 for high-performance cathode material in lithium-ion battery

Cited by 39 publications

References 39 publications

Surface Modification of Li(Ni0.6Co0.2Mn0.2)O2 Cathode Materials by Nano-Al2O3 to Improve Electrochemical Performance in Lithium-Ion Batteries

Surface Modification of Li(Ni0.6Co0.2Mn0.2)O2 Cathode Materials by Nano-Al2O3 to Improve Electrochemical Performance in Lithium-Ion Batteries

The effect of chelating agent on synthesis and electrochemical properties of LiNi0.6Co0.2Mn0.2O2

Gifts from Nature: Bio‐Inspired Materials for Rechargeable Secondary Batteries

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