TY  - JOUR
AU  - Jovanovic, Sven
AU  - Liang, Hai-Peng
AU  - Zarrabeitia, Maider
AU  - Chen, Zhen
AU  - Merz, Steffen
AU  - Granwehr, Josef
AU  - Passerini, Stefano
AU  - Bresser, Dominic
TI  - Polysiloxane‐Based Single‐Ion Conducting Polymer Blend Electrolyte Comprising Small‐Molecule Organic Carbonates for High‐Energy and High‐Power Lithium‐Metal Batteries
JO  - Advanced energy materials
VL  - 12
IS  - 16
SN  - 1614-6832
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2022-02234
SP  - 2200013 -
PY  - 2022
AB  - Single-ion conducting polymer electrolytes are considered particularly attractive for realizing high-performance solid-state lithium-metal batteries. Herein, a polysiloxane-based single-ion conductor (PSiO) is investigated. The synthesis is performed via a simple thiol-ene reaction, yielding flexible and self-standing polymer electrolyte membranes (PSiOM) when blended with poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP). When incorporating 57 wt% of organic carbonates, these polymer membranes provide a Li+ conductivity of >0.4 mS cm−1 at 20 °C and a wide electrochemical stability window of more than 4.8 V. This excellent electrochemical stability allows for the highly reversible cycling of symmetric Li||Li cells as well as high-energy Li||LiNi0.6Mn0.2Co0.2O2 (NMC622) and Li||LiNi0.8Mn0.1Co0.1O2 (NMC811) cells for several hundred cycles at relatively high discharge and charge rates. Remarkably, Li||NMC811 cells with high mass loading cathodes provide more than 76% capacity retention at a high current density of 1.44 mA cm−2, thus rendering this polymer electrolyte suitable for high-performance battery applications.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000767680200001
DO  - DOI:10.1002/aenm.202200013
UR  - https://juser.fz-juelich.de/record/907823
ER  -