Christoph Bauer

TL;DR: This work reviews findings used to establish the well-known mosaic structure model for the EEI (often referred to as solid electrolyte interphase or SEI) on negative electrodes including lithium, graphite, tin, and silicon and suggests ways to tailor EEI layer composition and properties.

TL;DR: In this paper, the physics that limit use of high areal capacity as a function of battery power to energy ratio are poorly understood and thus most currently produced automotive lithium ion cells utilize modest loadings to ensure long life over the vehicle battery operation.

TL;DR: It was found that the rate of parasitic reaction had strong dependence on the upper cutoff potential of the cathode material, and a change of reaction mode at about 4.5 V vs Li(+)/Li.

TL;DR: In this article, a set of high-energy lithium-ion pouch cells consisting of Li(Ni0.6Mn0.2Co 0.2)O2 (NMC622) cathodes and thick graphite anodes were cycled under 1C rate charge and 2C-rate discharge at room temperature, and the capacity fade was characterized into three stages: an initial stage of fast capacity drop, a second stage of gradual capacity loss, and a final stage of sharp capacity fade.

TL;DR: In this article, an electrochemical-thermal coupled model along with a diffusion-induced stress (DIS) model is developed to study the DIS distribution across the anode thickness, and the evolution of STS, as well as local current, at all locations of the anodes, evolve like sinusoidal waves in the discharge process with several crests and troughs.