Research
Solid-state batteries: Transport and interfacial challenges
We are leveraging our expertise of electroanalytical methods for the characterization of solid-solid interfaces and partial transport limitations in solid-state batteries. To mitigate the challenges of contact resistances, we are evaluating the viability of hybrid materials (inorganic solid electrolyte|liquid electrolyte and inorganic solid electrolyte|polymer electrolyte combinations):
- Hybrid solid electrolyte-liquid electrolyte systems for (almost) solid-state batteries: Why, how, and where to? J. Mater. Chem. A, 11,1083-1097 (2023). https://doi.org/10.1039/D2TA02179J
- On the Influence of Li3InCl6−PEDOT:PSS Hybrids in Solid-State Batteries Prepared via an Aqueous One-Pot Approach. Batteries & Supercaps 7 e202300434 (2024). https://doi.org/10.1002/batt.202300434
- Toward High-Capacity Li–S Solid-State Batteries: The Role of Partial Ionic Transport in the Catholyte. ACS Energy Lett. 9, 3547–3556 (2024). https://doi.org/10.1021/acsenergylett.4c01444
Benchmarking electrochemical methods and systems
We are very invested in standarization and benchmarking efforts related to the methods used to characterize electrochemical systems. This is motivated by a general lack of reporting multiplicate data to (internally) validate results. We have spearheaded various interlaboratory studies and also briefly documented the general challenges of benchmarking:
- Benchmarking the reproducibility of all-solid-state battery cell performance. Nat Energy 9, 1310–1320 (2024).
https://doi.org/10.1038/s41560-024-01634-3 - Toward Robust Ionic Conductivity Determination of Sulfide-Based Solid Electrolytes for Solid-State Batteries.
Adv. Funct. Mater. (2025): e09479. https://doi.org/10.1002/adfm.202509479 How Certain Are the Reported Ionic Conductivities of Thiophosphate-Based Solid Electrolytes? An
Interlaboratory Study. ACS Energy Letters, 2020 5 (3), 910-915. DOI:10.1021/acsenergylett.9b02764My cell is better than yours. Nat. Nanotechnol. 19, 419–420 (2024). https://doi.org/10.1038/s41565-024-01607-3