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The fundamental theoretical limit in the energy density of intercalation-based Li-ion chemistry can be overcome by exploring non Li-ion batteries. This also serves to alleviate anxiety about the depletion of lithium by fast-growing trends in renewables, consumer electronics and electrification of transportation. We are interested to study and address the fundamental material problems in such next-generation battery chemistries. Our research is focused on Na-, Mg- and Al-ion batteries in a move away from the use of Li. Exploring fundamental concepts from materials chemistry and physics, we design novel battery materials (cathode, anode, electrolyte), understand structure-property relationships, and construct battery prototypes for portable electronics, electric vehicles, grid energy storage, etc.

Capabilities

1. Cathode materials
   
   • Sulfur nanopowders (at kilogram scale)
   • Sulfur@MoS2-x composites
   • Li2S@TiS2 core-shell particles
   • Sulfur@TiO2 yolk-shell particles
   • Sulfur@Carbon yolk-shell particles
     
2. Anode protection
   
   • Stable and reversible sodium anode
   • Stable and reversible magnesium anode
3. Electrolyte
   
   • Stable and highly conductive electrolyte for sodium-ion batteries
     
   • Stable and highly conductive electrolyte for magnesium-ion batteries
4. Coin cell and pouch cell prototype fabrication
   
   • Coin metal-sulfur cells
     
   • Pouch lithium-sulfur cells (3 Ah)

Highlights & Achievements

Our team has published numerous high-impact articles in top journals.

Selected publications:

• S. Kumar et al., “” Energy Storage Mater. 2024, 65, 103087
  
• D. Chinnadurai et al., “” Nano Lett. 2023, 23, 11233-11242
  
• J. Wang et al., “.” Nano Energy 2024, 119, 109082
  
• M.-F. Ng et al., “.” Nat. Mach. Intell. 2020, 2, 161-170
  
• V. Kumar et al., “.” Cell Rep. Phys. Sci. 2020, 1, 100044
  
• V. Kumar et al., “.” Energy Storage Mater. 2020, 29, 1-8
  

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