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Inside Cover: Vertical Distribution of Overpotentials and Irreversible Charge Losses in Lithium Ion Battery Electrodes (ChemSusChem 8/2014)
Author(s) -
Klink Stefan,
Schuhmann Wolfgang,
La Mantia Fabio
Publication year - 2014
Publication title -
chemsuschem
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201400164
Subject(s) - overpotential , electrochemistry , graphite , electrode , separator (oil production) , intercalation (chemistry) , lithium (medication) , inorganic chemistry , materials science , ion , chemical engineering , chemistry , composite material , thermodynamics , organic chemistry , medicine , physics , engineering , endocrinology
The Inside Cover illustrates the electrochemical sieving effect in porous graphite electrodes for lithium‐ion batteries, which appears during the first charge. Limitations in mass transport result in a reduction of contaminants and additives preferentially at the negative electrode surface close to the separator. The electrochemical intercalation of lithium in graphite occurs in a layer‐by‐layer process due to the depletion of lithium from the solution and formation of concentration overpotential, which slow down the reaction in the bottom layers. The cross‐current density distribution becomes broader during the intercalation and deintercalation processes. More details can be found in the Full Paper by La Mantia et al. on page 2159 (DOI: 10.1002/cssc.201400056 ).