Detection of binder gradients using impedance spectroscopy and their influence on the tortuosity of Li-ion battery graphite electrodes

R Morasch, J Landesfeind, B Suthar… - Journal of The …, 2018 - iopscience.iop.org
Drying battery electrodes at high rates leads to binder migration and has shown to affect the
mechanical as well as the electrochemical properties of Li-ion battery electrodes. Up to now …

Influence of conductive additives and binder on the impedance of lithium-ion battery electrodes: effect of morphology

S Hein, T Danner, D Westhoff, B Prifling… - Journal of The …, 2020 - iopscience.iop.org
Most cathode materials for lithium-ion batteries exhibit a low electronic conductivity. Hence,
a significant amount of conductive graphitic additives are introduced during electrode …

Direct observation of carboxymethyl cellulose and styrene–butadiene rubber binder distribution in practical graphite anodes for Li-ion batteries

WJ Chang, GH Lee, YJ Cheon, JT Kim… - … applied materials & …, 2019 - ACS Publications
Despite the important role of carboxymethyl cellulose (CMC) and styrene–butadiene rubber
(SBR) binders in graphite electrodes for Li-ion batteries, the direct analysis of these binders …

Dilatometric investigations of graphite electrodes in nonaqueous lithium battery electrolytes

M Winter, GH Wrodnigg, JO Besenhard… - Journal of the …, 2000 - iopscience.iop.org
A so-called electrochemical dilatometer can be used to record the macroscopic expansion
(dilatation) and contraction of samples which undergo insertion/deinsertion reactions. Such …

A model for investigating sources of li-ion battery electrode heterogeneity: part I. electrode drying and calendering processes

M Nikpour, N Barrett, Z Hillman… - Journal of The …, 2021 - iopscience.iop.org
Heterogeneity of porous electrodes can cause battery failure and performance deficiencies.
On the other hand, some types of heterogeneity can improve performance. This study uses a …

Investigation of film solidification and binder migration during drying of Li-Ion battery anodes

S Jaiser, M Müller, M Baunach, W Bauer… - Journal of Power …, 2016 - Elsevier
The property determining micro-structure of battery electrodes essentially evolves during
drying, appointing it a paramount, yet insufficiently understood processing step in cell …

Effect of microstructure morphology on Li-ion battery graphite anode performance: Electrochemical impedance spectroscopy modeling and analysis

BT Habte, F Jiang - Solid State Ionics, 2018 - Elsevier
Carbon graphite has received much attention over the last decades as the best candidate for
negative Li-ion battery electrodes due to its thermal stability and optimal cycling capability …

Quantifying microstructural dynamics and electrochemical activity of graphite and silicon-graphite lithium ion battery anodes

P Pietsch, D Westhoff, J Feinauer, J Eller… - Nature …, 2016 - nature.com
Despite numerous studies presenting advances in tomographic imaging and analysis of
lithium ion batteries, graphite-based anodes have received little attention. Weak X-ray …

Influence of the binder on lithium ion battery electrode tortuosity and performance

J Landesfeind, A Eldiven… - Journal of The …, 2018 - iopscience.iop.org
The electrochemical performance of porous graphite anodes in lithium ion battery
applications is limited by the lithium ion concentration gradients in the liquid electrolyte …

Impedance spectroscopy on porous materials: A general model and application to graphite electrodes of lithium-ion batteries

F La Mantia, J Vetter, P Novák - Electrochimica Acta, 2008 - Elsevier
Electrochemical impedance spectroscopy (EIS) was applied to porous negative graphite
electrodes for lithium-ion batteries in the EC: DMC, 1M LiPF6 electrolyte. The effect of …