TY  - JOUR
AU  - Schwieters, Timo
AU  - Evertz, Marco
AU  - Fengler, Alexander
AU  - Börner, Markus
AU  - Dagger, Tim
AU  - Stenzel, Yannick
AU  - Harte, Patrick
AU  - Winter, Martin
AU  - Nowak, Sascha
TI  - Visualizing elemental deposition patterns on carbonaceous anodes from lithium ion batteries: A laser ablation-inductively coupled plasma-mass spectrometry study on factors influencing the deposition of lithium, nickel, manganese and cobalt after dissolution and migration from the Li 1 [Ni 1/3 Mn 1/3 Co 1/3 ]O 2 and LiMn 1.5 Ni 0.5 O 4 cathode
JO  - Journal of power sources
VL  - 380
SN  - 0378-7753
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2018-04939
SP  - 194 - 201
PY  - 2018
AB  - In this study, laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) is applied to previously aged carbonaceous anodes from lithium ion batteries (LIBs). These electrodes are treated by cyclic aging in a lithium ion cell set-up against Li1[Ni1/3Mn 1/3Co1/3]O2 = NMC111 to elucidate factors that influence transition metal dissolution (TMD) of the cathode and subsequent deposition on the anode. The investigations are carried out by qualitatively visualizing the 7Li and TM patterns (60Ni, 55Mn and 59Co) of whole coin and pouch-bag electrodes.The lithium, as well as the TM amount, found on the anode, is directly correlated to the applied upper cut-off voltage (4.6, 4.7, 4.8 and 4.9 V) showing more deposition of Li and TMs at elevated voltages. While 7Li shows a more homogeneous pattern, the TM distribution is inhomogeneous but showing a similar pattern for all TMs of the same sample. An unequal pressure distribution, resulting in a nonparallel electrode alignment, on the electrode stack is identified to be responsible for the inhomogeneous TM deposition pattern. This uneven electrode orientation results in different diffusion pathways for the TM migration with regard to the spatial distances.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000428007400022
DO  - DOI:10.1016/j.jpowsour.2018.01.088
UR  - https://juser.fz-juelich.de/record/851244
ER  -