Enhanced Performance in a Lithium-ion Battery via the Crystal-aligned LiNi 0.6 Mn 0.2 Co 0.2 O 2 and the Relevant Electrochemical Interpretation

Journal of the Korean Chemical Society

article

Cham Kim¹ 

[1] Division of Nanotechnology, Daegu Gyeongbuk Institute of Science and Technology

关键词: Lithium-ion battery;    LiNi0.6Mn0.2Co0.2O2;    Magnetic property;    Magnetic field;    Crystal alignment;   

DOI  :  10.5012/jkcs.2022.66.6.451

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Through the crystal alignment research based on the magnetic properties of LiNixMnyCo1-(x+y)O2 such as magnetic susceptibility and related anisotropy, a crystal aligned LiNi0.6Mn0.2Co0.2O2 electrode is obtained, in which the (00l) planeis frequently oriented perpendicular to the surface of a current collector. The crystal aligned LiNi0.6Mn0.2Co0.2O2 electrodesteadily exhibits low electrode polarization properties during the charge/discharge process in a lithium-ion battery, thus affording an improved capacity compared to a pristine LiNi0.6Mn0.2Co0.2O2 electrode. The aligned LiNi0.6Mn0.2Co0.2O2 electrode mayhave an appropriate structural nature for fast lithium-ion transport due to the oriented (00l) plane, and thus it contributes toenhancing the battery performance. This enhancement is analyzed in terms of various electrochemical theories and experiment results;thus, it is verified to occur because of the considerably fast lithium-ion transport in the aligned LiNi0.6Mn0.2Co0.2O2 electrode.

【 授权许可】

Unknown