TY  - JOUR
AU  - Chen, Yi-Hsuan
AU  - Hsieh, Yi-Chen
AU  - Liu, Kun Ling
AU  - Wichmann, Lennart
AU  - Thienenkamp, Johannes Helmut
AU  - Choudhary, Aditya
AU  - Bedrov, Dmitry
AU  - Winter, Martin
AU  - Brunklaus, Gunther
TI  - Green Polymer Electrolytes Based on Polycaprolactones for Solid‐State High‐Voltage Lithium Metal Batteries
JO  - Macromolecular rapid communications
VL  - 43
IS  - 20
SN  - 0173-2803
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2022-02735
SP  - 2200335
PY  - 2022
N1  - Army Research Laboratory. Grant Number: W911NF-12-2-0023
AB  - Solid polymer electrolytes (SPEs) have attracted considerable attention forhigh energy solid-state lithium metal batteries (LMBs). In this work, potentiallyecofriendly, solid-state poly(𝝐-caprolactone) (PCL)-based star polymerelectrolytes with cross-linked structures (xBt-PCL) are introduced that robustlycycle against LiNi0.6Mn0.2Co0.2O2(NMC622) composite cathodes, affordinglong-term stability even at higher current densities. Their superior featuresallow for sufficient suppression of dendritic lithium deposits, as monitored by7Li solid-state NMR. Advantageous electrolyte|electrode interfacial propertiesderived from cathode impregnation with 1.5 wt% PCL enable decent cellperformance until up to 500 cycles at rates of 1C (60°C), illustrating the highpotential of PCL-based SPEs for application in high-voltage LMBs.
LB  - PUB:(DE-HGF)16
C6  - 35726135
UR  - <Go to ISI:>//WOS:000819197500001
DO  - DOI:10.1002/marc.202200335
UR  - https://juser.fz-juelich.de/record/908636
ER  -