Work

Lithium Intercalation in Core-Shell Materials–Theoretical Analysis

Year: 2014

Type: article

Abstract: Core-shell composite structures are potential candidates for Li-ion battery electrodes as they can take advantage of materials with higher energy density and materials with higher cyclability. This paper derives an analytical solution for isotropic 1-dimensional diffusion with galvanostatic boundary condition in composite slab, cylinder and sphere using separation of variables method. A general interfacial condition has been used to represent the dynamics at the interface of the composite material rendering the solution useful for wide variety of battery materials. Using the derived analytical solution for diffusion, intercalation induced stresses were estimated for spherical core-shell materials.

Source: Journal of The Electrochemical Society

DOI: 10.1149/2.004405jes

Authors: Bharatkumar Suthar, Venkat R. Subramanian

Institution: Washington University in St. Louis

Language: English

Topic: Advancements in Battery Materials

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: bronze