Open AccessImproved Capacity of LiNi0.8Mn0.1Co0.1O2 Cathode upon Sn(IV) Doping by Facile Co-Precipitation Method
Author(s) -
D. Deivamani,
Packiyaraj Perumal
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2020.22543
Subject(s) - cathode , cobalt , nickel , chemistry , lithium (medication) , intercalation (chemistry) , manganese , ionic radius , doping , scanning electron microscope , inorganic chemistry , oxide , analytical chemistry (journal) , ion , materials science , composite material , organic chemistry , medicine , optoelectronics , endocrinology
Nickel rich lithium nickel manganese cobalt oxide is one of the prominent cathode materials in thefield of lithium ion battery. The cathode was prepared upon doping with Sn4+ by simple co-precipitationmethod to develop its discharge capacity. The structural and morphological studies on the cathodematerial were done by X-ray diffraction and scanning electron microscopy to confirm any structuralchanges upon doping of Sn4+. The higher discharge capacity of 210 mAh g-1 with 89% capacity retentionwas achieved even after 100 cycles at C/3 rate for 0.8 mol % Sn4+ doped lithium nickel manganesecobalt oxide. The structural phase change upon cycling for Sn4+ doped and un-doped cathode wasillustrated by differential plot. The ionic radius and high bond stability of Sn4+ that compares Ni2+might be the reason to prevent structural collapse during Li+ intercalation and de-intercalation process.