Nonionic Amphiphilic Copolymers of Poly(poly(ethylene Glycol) Methacrylate) Brushes with Methyl Methacrylate Prepared by Atom Transfer Radical Polymerization as Dry Solid Polymer Electrolytes for Next Generation Li-ion Battery Applications
2024

New Polymer Electrolytes for Li-ion Batteries

publication 10 minutes Evidence: moderate

Author Information

Author(s): Szabó Ákos, Ershov Denis, Ábrahám Ágnes, Kiss Éva, Szarka Györgyi, Felhősi Ilona, Gyarmati Benjámin, Domján Attila, Iván Béla, Kun Robert

Primary Institution: Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, Hungary

Hypothesis

Can copolymers of poly(ethylene glycol) methacrylate and methyl methacrylate improve the performance of solid polymer electrolytes in Li-ion batteries?

Conclusion

The synthesized copolymers exhibit good mechanical properties and ionic conductivity, making them suitable for next-generation Li-ion batteries.

Supporting Evidence

  • The copolymers showed no crystallization in the presence of lithium salt, leading to better ionic conductivity.
  • Electrochemical stability measurements indicated a broader stability window for the copolymers compared to traditional PEO.
  • The synthesized copolymers maintained good mechanical properties even at elevated temperatures.

Takeaway

Scientists made a new type of plastic that helps batteries work better and last longer. This plastic can change its surface to stick to different materials.

Methodology

The copolymers were synthesized using atom transfer radical polymerization and characterized through various electrochemical and thermal analyses.

Limitations

The study does not explore long-term stability or real-world battery performance.

Digital Object Identifier (DOI)

10.1021/acsaem.4c02519

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