Highly Conductive Polyoxanorbornene-Based Polymer Electrolyte for Lithium-Metal Batteries

This present study illustrates the synthesis and preparation of polyoxanorbornene-based bottlebrush polymers with poly(ethylene oxide) (PEO) side chains by ring-opening metathesis polymerization for solid polymer electrolytes (SPE). In addition to the conductive PEO side chains, the polyoxanorbornen...

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Bibliographic Details
Published in:Advanced science 2023-09, Vol.10 (27), p.e2302932-e2302932
Main Authors: An, So Young, Wu, Xinsheng, Zhao, Yuqi, Liu, Tong, Yin, Rongguan, Ahn, Jung Hyun, Walker, Lynn M, Whitacre, Jay F, Matyjaszewski, Krzysztof
Format: Article
Language:English
Subjects:
Alternative energy
Batteries
Design
Electrolytes
Energy storage
high conductivity
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Ions
Lithium
polymeric electrolytes
Polymerization
Polymers
ROMP
Solid polymer electrolytes
Temperature
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Summary:This present study illustrates the synthesis and preparation of polyoxanorbornene-based bottlebrush polymers with poly(ethylene oxide) (PEO) side chains by ring-opening metathesis polymerization for solid polymer electrolytes (SPE). In addition to the conductive PEO side chains, the polyoxanorbornene backbones may act as another ion conductor to further promote Li-ion movement within the SPE matrix. These results suggest that these bottlebrush polymer electrolytes provide impressively high ionic conductivity of 7.12 × 10 S cm at room temperature and excellent electrochemical performance, including high-rate capabilities and cycling stability when paired with a Li metal anode and a LiFePO cathode. The new design paradigm, which has dual ionic conductive pathways, provides an unexplored avenue for inventing new SPEs and emphasizes the importance of molecular engineering to develop highly stable and conductive polymer electrolytes for lithium-metal batteries (LMB).
ISSN:2198-3844
2198-3844
DOI:10.1002/advs.202302932