Journal Article

FZJ-2022-02735

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Green Polymer Electrolytes Based on Polycaprolactones for Solid‐State High‐Voltage Lithium Metal Batteries

Chen, Y.-H. (First author)FZJ* ; Hsieh, Y.-C.FZJ* ; Liu, K. L.FZJ* ; Wichmann, L.FZJ* ; Thienenkamp, J. H.FZJ* ; Choudhary, A. ; Bedrov, D. ; Winter, M.FZJ* ; Brunklaus, G. (Corresponding author)FZJ*

2022
Wiley-VCH Weinheim

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Please use a persistent id in citations: http://hdl.handle.net/2128/32390  doi:10.1002/marc.202200335

Abstract: 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.

Note: Army Research Laboratory. Grant Number: W911NF-12-2-0023

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Contributing Institute(s):

1. Helmholtz-Institut Münster Ionenleiter für Energiespeicher (IEK-12)

Research Program(s):

1. 1223 - Batteries in Application (POF4-122) (POF4-122)
2. FestBatt-Polymere - Materialplattform 'Polymere' im Rahmen des Kompetenzclusters für Festkörperbatterien (13XP0175A) (13XP0175A)
3. LiBEST2 - Lithium-Batterie-Konzepte mit hoher Energiedichte, Leistung und Sicherheit (13XP0304A) (13XP0304A)
4. LiSi - Lithium-Solid-Electrolyte Interfaces (13XP0224A) (13XP0224A)

Appears in the scientific report 2022

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Wiley ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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