Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5149627 | Journal of Power Sources | 2017 | 7 Pages |
Abstract
In this work, lithium plating is investigated by means of voltage relaxation and in situ neutron diffraction in commercial lithium-ion batteries. We can directly correlate the voltage curve after the lithium plating with the ongoing phase transformation from LiC12 to LiC6 according to the neutron diffraction data during the relaxation. Above a threshold current of C/2 at a temperature of â2 °C, lithium plating increases dramatically. The results indicate that the intercalation rate of deposited lithium seems to be constant, independent of the deposited amount. It can be observed that the amount of plating correlates with the charging rate, whereas a charging current of C/2 leads to a deposited amount of lithium of 5.5% of the charge capacity and a current of 1C to 9.0%.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Christian von Lüders, Veronika Zinth, Simon V. Erhard, Patrick J. Osswald, Michael Hofmann, Ralph Gilles, Andreas Jossen,