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Cover Feature: Influence of the Electrolyte Salt Concentration on the Rate Capability of Ultra‐Thick NCM 622 Electrodes (Batteries & Supercaps 11/2020)
Author(s) -
Kremer Lea Sophie,
Danner Timo,
Hein Simon,
Hoffmann Alice,
Prifling Benedikt,
Schmidt Volker,
Latz Arnulf,
WohlfahrtMehrens Margret
Publication year - 2020
Publication title -
batteries and supercaps
Language(s) - English
Resource type - Journals
ISSN - 2566-6223
DOI - 10.1002/batt.202000234
Subject(s) - electrolyte , electrode , salt (chemistry) , cover (algebra) , salt lake , energy density , materials science , ion , current density , microstructure , current collector , feature (linguistics) , engineering physics , optoelectronics , chemical engineering , composite material , chemistry , engineering , geology , mechanical engineering , physics , paleontology , linguistics , philosophy , organic chemistry , structural basin , quantum mechanics
The Cover Feature illustrates the significant increase in energy density of ultra‐thick electrodes by the addition of LiPF 6 salt. Optimizing the electrolyte salt concentration results in a mitigation of Li‐ion depletion occurring when ultra‐thick electrodes are discharged at high current densities. Microstructure resolved simulations confirm that the elevated charge carrier density allows activating larger parts of the thick electrode before transport limitations take over. More information about this collaborative study of three institutes located in the “Science City Ulm” can be found in the Article by A. Hoffmann and co‐workers.