Electrochemical Performance of LiNixMnyCozO2 (NMC) Materials with Hollow Spheres Morphology

0511870 - ÚFCH JH 2021 RIV US eng J - Journal Article
Zukalová, Markéta - Procházka, J. - Zukal, Arnošt - Kavan, Ladislav
Electrochemical Performance of LiNixMnyCozO2 (NMC) Materials with Hollow Spheres Morphology.
ECS Transactions. Roč. 95, č. 1 (2019), s. 55-63. ISSN 1938-5862
R&D Projects: GA MPO FV20471
Institutional support: RVO:61388955
Keywords : Lithium-ion Batteries * Lithium Oxides * electrochemical properties
OECD category: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Method of publishing: Limited access

Electrochemical performance of the materials NMC333, NMC622 and NMC532 with hollow spheres morphology is evaluated both on a thin electrode and in a 3D arrangement in the battery module. Cyclic voltammetry of Li insertion provides charge capacities of 124, 154 and 142 mAh/g for thin electrodes containing NMC622, 532 and 333, respectively. NMC333 in the 3D battery arrangement provides 82.5% of the theoretical capacity after 5 formatting and 5 testing cycles at the C/20 and C/10 rates, respectively. NMC622 and NMC532 exhibit, under the same conditions, capacities of 64.0% and 64.6% of the theoretical battery capacity, respectively. The worse performance of the Ni-rich NMCs is ascribed to their higher reactivity with electrolyte during formatting.
Permanent Link: http://hdl.handle.net/11104/0302116