Multifunctional dipoles enabling enhanced ionic and electronic transport for high‑energy batteries
2026-01-21
(Press-News.org)
As global demand for sustainable energy surges, the performance ceiling of current battery technologies is increasingly tied to how efficiently ions and electrons move through the cell. Now, a multinational team led by Dr. Yuntong Sun (Nanyang Technological University), Dr. Zhendong Hao (Nanjing Institute of Technology) and Prof. Jong-Min Lee (DGIST) has delivered a panoramic review in Nano-Micro Letters showing how molecular and ionic dipole interactions can push that ceiling higher. The work provides a design playbook for next-generation high-energy batteries that are safer, longer-lasting and wide-temperature-capable.
Why Dipole Interactions Matter
Energy Density Unlocked: Dipole fields regulate ion-solvent coordination, suppress dendrites, stabilize electrode–electrolyte interfaces and unlock extra capacity from existing cathode chemistries.
Interface Engineering: Dipoles build robust solid-electrolyte interphase (SEI) and cathode–electrolyte interphase (CEI) layers, cutting parasitic reactions and impedance growth.
Universal Tool-box: From Li-ion, Li-metal and Li–S to Na-ion and Zn systems, dipole strategies display chemistry-agnostic adaptability across liquid, gel and solid-state formats.
Innovative Design and Features
Dipole Classifications: Ion–solvent molecule, ion–functional group and additive molecule ion–dipole interactions are dissected with structure–function tables linking specific dipole motifs to performance gains.
Functional Materials: Crown ethers, ferroelectric BaTiO3, polar carbonates, sulfonamides and nitrile-rich polymers are spotlighted as dipole donors that re-wire solvation sheaths and electric-double-layer topology.
Array Architectures: Electric-field-assisted vertical alignment, in-situ UV polymerization and asymmetric ceramic/polymer integration create oriented ion highways inside composite electrolytes and separators.
Applications and Future Outlook
Multi-Level Transport: Dipole-ordered channels raise Li⁺/Na⁺/Zn2⁺ transference numbers (up to 0.82), cut desolvation barriers and enable 5C–10C fast charge without dendrite initiation.
High-Voltage Stability: Dipole-engineered CEI layers deliver 91 % capacity retention after 100 cycles at 4.3 V (Li||NCM523) and extend oxidative stability of polymer electrolytes to 4.6 V.
Wide-Temperature Resilience: Strong multiple ion–dipole networks preserve solvation geometry from −60 °C to 100 °C, yielding 89 % capacity retention at 100 °C and 76 % at −40 °C.
Challenges and Opportunities: The review flags needs for AI-aided dipole design, in-situ characterization databases and scale-up collaboration to translate dipole-boosted coin-cell records into pouch-cell products.
This roadmap underscores the pivotal role of dipole interactions in bridging materials science, electrochemistry and computation for future high-energy storage. Stay tuned for more field-advancing work from Prof. Sun, Prof. Hao and Prof. Lee’s teams!
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[Press-News.org] Multifunctional dipoles enabling enhanced ionic and electronic transport for high‑energy batteries
