Breakthrough in Lithium-Sulfur Batteries: Researchers Utilize Hyaluronic Acid for Enhanced Performance

Strategic Insights -

Researchers at Wenzhou University have made a significant breakthrough in the development of lithium-sulfur batteries. By utilizing hyaluronic acid (HA) as an electrocatalyst, the team was able to enhance the performance of these batteries by promoting the adsorption of electrolyte and polysulfides, reducing the shuttle effect, and improving the lithiation kinetics.

The research, published in the journal Advanced Materials, involved the experimental and theoretical demonstration of HA's ability to facilitate the conversion of polysulfide radicals at N sites, suppressing the shuttle effect. Additionally, the double helix structure of HA accelerated the migration of lithium ions, further enhancing the performance of the battery. As a result, the HA-modified cells delivered a high areal capacity of 11.76 mAh cm and a gravimetric energy density of 409 Wh kg, under sulfur loading of 8 mg cm and lean electrolyte of 3 L mg conditions.

Key Takeaways:

  • Hyaluronic acid (HA) is experimentally and theoretically demonstrated to promote the adsorption of electrolyte and polysulfides, reducing the shuttle effect and improving the lithiation kinetics in lithium-sulfur batteries.
  • HA facilitates the conversion of polysulfide radicals at N sites, suppressing the shuttle effect, and accelerates Li migration, enhancing the lithiation kinetics of the system.
  • The HA-modified cells deliver a high areal capacity of 11.76 mAh cm and a gravimetric energy density of 409 Wh kg, under sulfur loading of 8 mg cm and lean electrolyte of 3 L mg conditions.
  • This research provides a fresh insight into developing natural moisturizing materials as electrocatalysts toward practical Li-S batteries.
  • Additional authors for this research include Peihang Li, Zhiyuan Chen, Hao Liu, Yuting Liu, Jia Guan, Jinchen Jiang, Dong Cai, Shuo Yang, and Zhi Yang.

Statistics:

  • Areal capacity: 11.76 mAh cm
  • Gravimetric energy density: 409 Wh kg
  • Sulfur loading: 8 mg cm
  • Lean electrolyte: 3 L mg
  • Lithium-sulfur battery type: Lean-electrolyte lithium-sulfur batteries
  • Research publication: Advanced Materials, 2025

Sources:

  • Luo, Z., et al. "Hyaluronic Acid with Double Helix Ion Channels for Efficient Electrolyte Retention and Polysulfide Regulation in Lean-Electrolyte Lithium-Sulfur Batteries." Advanced Materials, 2025.
  • NewsRx. Wenzhou University Reports Findings in Membrane Transport Proteins (Hyaluronic Acid with Double Helix Ion Channels for Efficient Electrolyte Retention and Polysulfide Regulation in Lean-Electrolyte Lithium-Sulfur Batteries). Chemicals & Chemistry. August 29, 2025; p 5077.