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6 papers · 1 filter
"Knees" in lithium-ion battery aging trajectories
Peter M. Attia, Alexander Bills, Ferran Brosa Planella +14
Lithium-ion batteries can last many years but sometimes exhibit rapid, nonlinear degradation that severely limits battery lifetime. In this work, we review prior work on "knees" in…
Operando monitoring of single-particle kinetic state-of-charge heterogeneities and cracking in high-rate Li-ion anodes
Alice J. Merryweather, Quentin Jacquet, Steffen P. Emge +3
Recent years have seen a rapidly escalating demand for battery technologies capable of storing more energy, charging more quickly and having longer usable lifetimes, driven largely…
Heat Generation and a Conservation Law for Chemical Energy in Lithium-ion Batteries
G. Richardson, I. Korotkin
Present theories of irreversible energy losses and heat generation within Li-ion cells are unsatisfactory because they are not compatible with energy conservation. This work aims t…
DandeLiion v1: An extremely fast solver for the Newman model of lithium-ion battery (dis)charge
Ivan Korotkin, Smita Sahu, Simon O'Kane +2
DandeLiion (available at dandeliion.com) is a robust and extremely fast solver for the Doyle Fuller Newman (DFN) model, the standard electrochemical model for (dis)charge of a plan…
Homogenisation of spirally-wound high-contrast layered materials
Steven Psaltis, Robert Timms, Colin Please +1
Asymptotic homogenisation is used to systematically derive reduced-order macroscopic models of conductive behaviour in spirally-wound layered materials in which the layers have ver…
Modelling electrode heterogeneity in lithium-ion batteries: unimodal and bimodal particle-size distributions
Toby L. Kirk, Jack Evans, Colin P. Please +1
In mathematical models of lithium-ion batteries, the highly heterogeneous porous electrodes are frequently approximated as comprising spherical particles of uniform size, leading t…