Coating - A potent method to enhance electrochemical performance of Li(NixMnyCoz)O2 cathodes for Li-ion batteries

Leon Shaw* , Maziar Ashuri

Department of Mechanical, Materials and Aerospace Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, USA

DOI: 10.5185/amlett.2019.2256

Publication Date (Web): Jan 14, 2019

E-mail: lshaw2@iit.edu

Abstract

Layered lithium nickel manganese cobalt oxides, Li(NixMnyCoz)O2 where x + y + z = 1 (NMCs), have been studied extensively due to their higher capacity, less toxicity and lower cost compared to LiCoO2. However, widespread market penetration of NMCs as cathodes for Li-ion batteries (LIBs) is impeded by their poor capacity retention and low rate capability. Coatings provide an effective solution to these problems. This article focuses on review of the recent advancements in coatings of NMCs from the mechanism viewpoint. This is the first time that coatings on NMCs are reviewed based on their functionalities and mechanisms through which the electrochemical properties and performance of NMCs have been improved. To provide a comprehensive understanding of the functions and mechanisms offered by coatings, the following functions and mechanisms are reviewed individually: (i) scavenging HF in the electrolyte, (ii) scavenging water molecules in the electrolyte and thus suppressing HF propagation during charge/discharge cycles, (iii) serving as a buffer layer to minimize HF attack on NMCs and suppress side reactions between NMCs and the electrolyte, (iv) hindering phase transitions and impeding loss of lattice oxygen, (v) preventing microcracks in NMC particles to keep participation of most NMC material in lithiation/de-lithiation, and (vi) enhancing the rate capability of NMC cathodes. Finally, the personal perspectives on outlook are offered with an aim to stimulate further discussion and ideas on the rational design of coatings for durable and high performance NMC cathodes for the next generation LIBs in the near future.

Keywords

Li-ion batteries, layered lithium nickel manganese cobalt oxides, coating, NMCs.

Current Issue

Tech-footprints for virtual medicine


Advances in corrosion inhibition materials and technologies: A review


Ring models of atoms, molecules and nanomaterials


(FeCo/Ppy@C): Pt-free FeCo-Polypyrrole Nanocomposites Supported on Porous Carbon for Electrochemical Application


Physical and mechanical properties of microwave absorber material containing micro and nano barium ferrite  


Formation of nano-dispersed Cu particles during aging of a Fe-Cu alloy and dislocation effect


Preparation of novel tragacanth gum-entrapped lecithin nanogels 


Modulation of optical properties with multilayer thickness in antimonene and indiene   


Bi-doped CH3NH3PbI3 effective masses and electronic properties research: A theoretical study using VASP


Novel synthesis of Pd nanosheets used as highly sensitive SERS substrate for trace fluorescent dye detection 


Silver nanoparticles mediated by extract of Guar plant (Cyamopsis tetragonoloba), and evaluation of their photocatalytic and antibacterial properties


Study of TiO2 nanofibers prepared by electrospinning technique


Determination of leachate pollution content in soil using in-situ dielectric measurement  


Previous issues

Intelligent healthcare for future medicine

Review of nanoscale layered transition metal chalcogenide superconductors

Evaluation of NSAIDs antioxidant activity on lipid peroxidation in splenocyte membranes

Morphological, structural, thermal and degradation properties of polylactic acid-waxy maize starch nanocrystals based nanocomposites prepared by melt processing

Influence of surfactant on the patterning behavior of nanosilver within polyacrylamide nanogels

Cell study of the biomimetic modifications on a CoCrMo alloy for biomedical applications

SPIONs and curcumin co-encapsulated mixed micelles based nanoformulation for biomedical applications

Fabrication of Y2O3 coatings by cold-spray

Triclinic LiVPO4F/C cathode for aqueous rechargeable lithium-ion batteries

PRAP-CVD: Up-scalable process for the deposition of PEDOT thin films

Effect of storage time, plasticizer formulation and extrusion parameters on the performance of thermoplastic starch films

Effect of silver nanoparticles on the ammonia gas sensing behavior in diphenylamine based conjugated polymer

Study the possibility of using sisal fibres in building applications

Upcoming Congress

Knowledge Experience at Sea TM