%0 Journal Article
%A Chen, Yi-Hsuan
%A Hsieh, Yi-Chen
%A Liu, Kun Ling
%A Wichmann, Lennart
%A Thienenkamp, Johannes Helmut
%A Choudhary, Aditya
%A Bedrov, Dmitry
%A Winter, Martin
%A Brunklaus, Gunther
%T Green Polymer Electrolytes Based on Polycaprolactones for Solid‐State High‐Voltage Lithium Metal Batteries
%J Macromolecular rapid communications
%V 43
%N 20
%@ 0173-2803
%C Weinheim
%I Wiley-VCH
%M FZJ-2022-02735
%P 2200335
%D 2022
%Z Army Research Laboratory. Grant Number: W911NF-12-2-0023
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 35726135
%U <Go to ISI:>//WOS:000819197500001
%R 10.1002/marc.202200335
%U https://juser.fz-juelich.de/record/908636