Atomic Horizons Interpretation on Enhancing Electrochemical Performance of Ni-Rich NCM Cathode via W Doping: Dual Improvements in Electronic and Ionic Conductivities from DFT Calculations and Experimental Confirmation.
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DOI: 10.1002/smll.202205122
Abstract: The rapid capacity degradation and poor rate capability hinder the application of Rich-Ni layered LiNix Coy Mnz O2 (NCM) as cathode materials for high-energy lithium-ion batteries. In this study, density functional theory (DFT) calculations, combined… read more here.
Keywords: electronic ionic; improvements electronic; dual improvements; cathode ... See more keywords
Between Scylla and Charybdis: Balancing Among Structural Stability and Energy Density of Layered NCM Cathode Materials for Advanced Lithium-Ion Batteries
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DOI: 10.1021/acs.jpcc.7b06363
Abstract: Two major strategies are currently pursued to improve the energy density of lithium-ion batteries using LiNixCoyMnzO2 (NCM) cathode materials. One is to increase the fraction of redox active Ni (≥80%), which allows larger amounts of… read more here.
Keywords: energy; cathode materials; ion batteries; ncm cathode ... See more keywords
Enhancing the Electrochemical Performance of Ni-Rich Layered Oxide Cathodes by Combination of the Gradient Doping and Dual-Conductive Layers Coating
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DOI: 10.1021/acsaem.8b02112
Abstract: Currently, there is an urgent demand for Ni-rich cathode materials with excellent electrochemical properties under harsh conditions; however, obtaining such materials is very challenging. Here, we propose an innovative modification strategy that combines gradient phosphate… read more here.
Keywords: enhancing electrochemical; gradient doping; doping dual; ncm cathode ... See more keywords
Charge Transport in Single NCM Cathode Active Material Particles for Lithium-Ion Batteries Studied under Well-Defined Contact Conditions
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DOI: 10.1021/acsenergylett.9b01579
Abstract: We present a technique for systematically investigating electronic and ionic charge transport in single Li(Ni1/3Co1/3Mn1/3)O2 (NCM 111) secondary particles as a function of size. We perform electro... read more here.
Keywords: transport single; cathode active; charge transport; active material ... See more keywords