TY  - JOUR
AU  - Schlautmann, Eva
AU  - Drews, Janina
AU  - Ketter, Lukas
AU  - Lange, Martin A.
AU  - Danner, Timo
AU  - Latz, Arnulf
AU  - Zeier, Wolfgang
TI  - Graded Cathode Design for Enhanced Performance of Sulfide-Based Solid-State Batteries
JO  - ACS energy letters
VL  - 10
SN  - 2380-8195
CY  - Washington, DC
PB  - American Chemical Society
M1  - FZJ-2025-02157
SP  - 1664 - 1670
PY  - 2025
N1  - Financial support by the German Federal Ministry of Research and Education (BMBF) within the scope of the Cluster of Competence for Solid State Batteries FestBatt2 (FKZ: 03XP0435A) and ANISSA (FKZ: 05K22PMA)
AB  - Solid-state batteries present a promising technology to overcome the energy density limitations of lithium-ion batteries. However, achieving a high areal loading in cathodes without introducing significant transport limitations remains a key challenge, particularly in thick electrodes. In this work, we study the impact of a three-layer graded cathode design on the performance of a $LiNi_{0.83}Co_{0.11}Mn_{0.06}O_2$ (NCM83)$/ Li_6PS_5Cl$ (LPSCl) composite cathode using a combination of experiments and microstructure-resolved simulations. An increased LPSCl content at the separator and higher NCM83 content toward the current collector improve effective charge transport, resulting in better rate performance and reduced overpotentials at high current densities. This comprehensive experimental and theoretical study demonstrates that the optimization of cathode design has the potential to significantly enhance the performance of solid-state batteries.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001444249700001
DO  - DOI:10.1021/acsenergylett.4c03243
UR  - https://juser.fz-juelich.de/record/1041123
ER  -