Modeling Lithium Intercalation of a Single Spinel Particle under Potentiodynamic Control | Zendy

Dong Zhang | Zendy; Branko N. Popov | Zendy; Ralph E. White | Zendy

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Modeling Lithium Intercalation of a Single Spinel Particle under Potentiodynamic Control

Author(s) -

Dong Zhang,

Branko N. Popov,

Ralph E. White

Publication year - 2000

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/1.1393279

Subject(s) - spinel , electrolyte , intercalation (chemistry) , electrochemistry , materials science , lithium (medication) , solution of schrödinger equation for a step potential , particle size , diffusion , particle (ecology) , chemistry , electrode , inorganic chemistry , thermodynamics , metallurgy , physics , medicine , oceanography , geology , endocrinology

A mathematical model is presented for the lithium intercalation of a single spinel particle as a microelectrode under the stimulus of a cyclic linear potential sweep. The model includes both lithium diffusion within the particle and kinetics at the particle-electrolyte interface. The model is used to predict that peak current densities depend linearly on the scan rate to a certain power with a constant term, which is different from the predicted peak current density for a conventional redox system.

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