TY  - JOUR
AU  - Stolz, Lukas
AU  - Winter, Martin
AU  - Kasnatscheew, Johannes
TI  - Practical relevance of charge transfer resistance at the Li metal electrode|electrolyte interface in batteries?
JO  - Journal of solid state electrochemistry
VL  - 29
SN  - 1432-8488
CY  - New York
PB  - Springer
M1  - FZJ-2024-02593
SP  - 4181-4186
PY  - 2025
N1  - Unterstützt durch BMBF Grants: MEET Hi-End III (03XP0258A) und als Teil des ExcellBattMat Clusters.
AB  - The theoretically possible energy and power densities of rechargeable batteries are practically limited by resistances as these lead to overvoltages, particularly pronounced at kinetically harsher conditions, i.e., high currents and/or low temperature. Charge transfer resistance (Rct), being a major type of resistance alongside with Ohmic (RΩ) and mass transport (Rmt), is related with the activation hindrance of electrochemical reactions. Its practical relevance is discussed within this work via analyzing  cells with the galvanostatic/constant current (CC) technique. Rct at Li|electrolyte interfaces is shown to be relevantly impacted by electrode–electrolyte interphases; implying the electrolyte type, as well. While solid polymer electrolytes (SPEs), e.g., based on poly(ethylene) oxide (PEO), show negligible Rct, it is evident for commercial liquid electrolytes and readily increase during storage. Given the asymptotic overvoltage vs. current behavior of Rct, obeying Butler-Volmer equation, Rct gets less relevant at enhanced currents, as experimentally validated, finally pointing to the dominance of RΩ and (depending on system) Rmt in the overall resistance.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001140428000001
DO  - DOI:10.1007/s10008-023-05792-4
UR  - https://juser.fz-juelich.de/record/1024999
ER  -