Conductive polymer polyaniline covering promotes the electrochemical properties of a nickel-rich quaternary cathode LiNi0.88Co0.06Mn0.03Al0.03O2

Li, J.; Qian, Junchao; Wu, Zhengtian; Liu, Chengbao; Guan, Xiaodong; Zhang, Yang; Chen, Zhigang; Chen, Feng

doi:10.1039/d2nj06292e

Cited by 1 publication

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“…[24] Therefore, this study aims to explore quaternary layered cathode materials that serve as a transitional option between high-nickel ternary materials and cobalt-free cathode materials. [25][26][27] The objective is to reduce the cobalt content while retaining a portion of cobalt to preserve its essential impact on the layered materials. Iron is a low-cost, highabundance, clean, and environmentally friendly element.…”

Section: Introductionmentioning

confidence: 99%

Quaternary layered Cr‐doped modified NCMFe cathode material for Lithium‐Ion Batteries

Zhang,

He,

et al. 2024

ChemCatChem

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A series of cathode materials, Li[Ni0.6Co0.12Mn0.2Fe0.08]1‐xCrxO2 (x=0, 0.02, 0.04, 0.06), are synthesized via the co‐precipitation method. Structural characterization shows that Cr3+ ions are successfully incorporated into the material structure and evenly dispersed on the surface of crystal particles with other metal elements. The Cr‐doped material shows a well‐defined hexagonal layered structure with less cation mixing, and the increase in interionic and interlayer distances is beneficial for the transport of lithium ions. Compared to the pure NCMFe phase, the cyclic and rate performances of the Cr‐doped quaternary materials have been significantly improved. Among them, the 4Cr material exhibits the best electrochemical performance. The capacity retention rate after 50 charge‐discharge cycles at 0.1 C was increased from 74.83% to 87.32%. The rate performance has also increased from 87.6% to 92.69%. The Cr‐doped cathode can reduce the charge transfer resistance and enhance the stability of the layered structure, which results in outstanding electrochemical performance of the Cr‐doped cathode. CV and EIS tests were conducted on materials with various Cr doping levels, further confirming that Cr doping can reduce the degree of polarization in electrode materials, enhance charge and discharge reversibility, and reduce the charge transfer resistance of materials.

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Section: Introductionmentioning

confidence: 99%

Quaternary layered Cr‐doped modified NCMFe cathode material for Lithium‐Ion Batteries

Zhang,

He,

et al. 2024

ChemCatChem

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Conductive polymer polyaniline covering promotes the electrochemical properties of a nickel-rich quaternary cathode LiNi_0.88Co_0.06Mn_0.03Al_0.03O₂

Abstract: Ni-rich quaternary layered material LiNi0.88Co0.06Mn0.03Al0.03O2 demonstrated the high potential as a cathode candidate for the Lithium-ion batteries with high energy density. Nevertheless, the pristine LiNi0.88Co0.06Mn0.03Al0.03O2 was generally suffered from the...

Cited by 1 publication

References 49 publications

Quaternary layered Cr‐doped modified NCMFe cathode material for Lithium‐Ion Batteries

Quaternary layered Cr‐doped modified NCMFe cathode material for Lithium‐Ion Batteries

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