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Batteries

Breakthrough in Energy Materials: Researchers Develop High-Performance Conjugated Microporous Polymers for Lithium-Ion Batteries

Strategic Insights

— 2 min read

Researchers from Donghua University in Shanghai, China, have made a significant breakthrough in the development of energy materials, specifically conjugated microporous polymers (CMPs) for lithium-ion batteries. According to a recent study, the team has synthesized three anthraquinone-based CMPs, each with unique properties, which demonstrate high-performance electrochemical properties and stability. The research aims to provide valuable insights for designing high-rate and stable organic anode materials via molecular orbital and porosity modulation strategies.

Key Takeaways:

  • The research team synthesized three anthraquinone-based CMPs, PAQTA, PAQTB, and PAQTT, via Buchwald-Hartwig coupling, each with distinct core structures and properties.
  • PAQTA exhibits a polyaniline-like chemical structure, the narrowest band gap (2.17 eV), and the biggest mesoporous volume, making it an ideal candidate for high-rate lithium-ion storage.
  • Electrochemical study results demonstrate that the PAQTA electrode achieves a high reversible capacity of 800 mAh g-1 at 0.05 A g-1 and a high-rate performance (305 mAh g-1 at 2 A g-1), significantly outperforming PAQTB and PAQTT at the same current density.
  • Mechanistic studies via ex situ XPS, FT-IR, and density functional theory calculations elucidate the lithium-ion storage mechanism of PAQTA, involving synergistic redox reactions at the carbonyl groups and conjugated benzene moieties.
  • The research provides valuable insights for designing high-rate and stable organic anode materials via molecular orbital and porosity modulation strategies.
  • The study was financially supported by the Natural Science Foundation of Shanghai, National Natural Science Foundation of China, and other key research programs in China.
  • The researchers concluded that this work has the potential to contribute to the development of high-performance lithium-ion batteries with improved safety, energy density, and charging rates.

Statistics:

  • The PAQTA electrode exhibits a high reversible capacity of 800 mAh g-1 at 0.05 A g-1.
  • The PAQTA electrode achieves a high-rate performance of 305 mAh g-1 at 2 A g-1.
  • The band gap of PAQTA is 2.17 eV, making it the narrowest among the three CMPs.
  • The mesoporous volume of PAQTA is the biggest among the three CMPs.
  • The research received financial support from multiple key research programs in China, totaling [ undisclosed amount ].

Sources:

  • Synergistic Modulation of Band Gap and Porosity In Conjugated Microporous Polymers for High-rate Lithium-ion Storage. Acs Applied Energy Materials, 2025.
  • NewsRx. Researchers from Donghua University Detail Findings in Energy Materials (Synergistic Modulation of Band Gap and Porosity In Conjugated Microporous Polymers for High-rate Lithium-ion Storage). Energy Weekly News. July 18, 2025; p 404.

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