Research Area

Solid State Batteries

The solid-state team focuses on enabling novel electrolyte chemistries for high performance all-solid-state batteries. Research efforts include studying the mechanical properties at the stack level and deciphering fundamental phenomena at the electrode-electrolyte interface by utilizing numerous characterization techniques like TGC, nano-CT, XRD, Raman, XPS, FIB, EDX, TEM, EELS and more. Combining this knowledge with contemporary computational techniques from collaborators like Dr. Shyue Ping Ong, high throughput materials screening is leveraged to efficiently identify innovative and promising solid-electrolyte candidates.

The selected materials are brought to fruition experimentally and used to develop scalable fabrication methods for all-solid-state batteries. Striving for improved and tangible battery performance gains, the team works closely with industrial partners to optimize performance metrics at both the materials and cell level. This requires overcoming several fundamental and engineering challenges in order to facilitate the transition of all-solid-state battery development from the laboratory to the manufacturing line. The solid-state team is dedicated to accelerating the global shift towards renewables by bringing solid-state battery technologies to the forefront.

Highlighted Publications:

1. E. A. Wu, C. Jo, D. H. S. Tan, M. Zhang, J. Doux, Y. Chen, G. Deysher and Y. S. Meng, “A Facile, Dry-Processed Lithium Borate-Based Cathode Coating for Improved All-Solid-State Battery Performance“, Journal of The Electrochemical Society, 2020, 167, 130516

2. D. H. S. Tan, A. Banerjee, Z. Chen and Y. S. Meng, “From nanoscale interface characterization to sustainable energy storage using all-solid-state batteries“, Nature Nanotechnology, 2020, 15, 170–180

3. A. Banerjee, X. Wang, C. Fang, E. A. Wu and Y. S. Meng, “Interfaces and Interphases in All-Solid-State Batteries with Inorganic Solid Electrolytes“, Chem. Rev. 2020, 120, 14, 6878–6933

4. J. Doux, Y. Yang, D. H. S. Tan, H. Nguyen, E. A. Wu, X. Wang, A. Banerjeea, Y. S. Meng, “Pressure effects on sulfide electrolytes for all solidstate batteries“, J. Mater. Chem. A, 2020, 8, 5049–5055

5. J. Doux, H. Nguyen, D. H. S. Tan, A. Banerjee, X. Wang, E. A. Wu, C. Jo, H. Yang and Y. S. Meng, “Stack Pressure Considerations for Room-Temperature All-Solid-State Lithium Metal Batteries“, Adv. Energy Mater. 10, 1903253, 2019

6. H. Nguyen, A. Banerjee, X. Wang, D. Tan, E. A. Wu, J. Doux, R. Stephens, G. Verbist, Y. S. Meng, “Single-step synthesis of highly conductive Na3PS4 solid electrolyte for sodium all solid-state batteries“, Journal of Power Sources, 435, 126623, 2019

7. D. H. S. Tan, E. A Wu, H. Nguyen, Z. Chen, M. A. T. Marple, J. Doux, X. Wang, H. Yang, A. Banerjee and Y. S. Meng, “Elucidating Reversible Electrochemical Redox of Li6PS5Cl Solid Electrolyte“, ACS Energy Lett. 4, 10, 2418−2427, 2019