publications list on batteries research

Mohammed Sahal, Jie Molloy, Venkateshwaran Ravi Narayanan, Leila Ladani, Xiaochuan Lu, and Nicholas Rolston

ACS Omega 2023 8 (31), 28651-28662

DOI: 10.1021/acsomega.3c03114

Researchers have developed a high-throughput, one-minute process for printable thin-film ceramic solid-state electrolytes (SSEs) called "Robust LLTO" (R-LLTO). R-LLTO exhibits excellent mechanical properties, with flexibility, low modulus (~35 GPa), and high fracture toughness (>2.0 MPa m). This opens new design possibilities for robust solid-state batteries with improved energy density and processability compared to traditional SSEs.

How Paios was used

The complex impedance response of the inplane configuration was measured using a Paios measurement system (Fluxim AG) by varying the frequency from 10 Hz to 10 MHz for an applied voltage with an amplitude of 50 mV. Data from EIS measurements were fitted with simulated response of equivalent circuits using Fluxim’s Characterization Suite software.

Andre Müller, Faruk Okur,ab Abdessalem Aribia, Nicolas Osenciat, Carlos A. F. Vaz, Valerie Siller, Mario El Kazzi, Evgeniia Gilshtein, Moritz H. Futscher, Kostiantyn V. Kravchyk, Maksym V. Kovalenko and Yaroslav E. Romanyuk

Mater. Adv., 2023,4, 2138-2146

Integrating Li7La3Zr2O12 (LLZO) solid-state electrolytes with high-energy cathodes in all-solid-state batteries faces challenges due to diffusion and solid-state reactions at the cathode-electrolyte interface during fabrication. This study explores lithiated Nb, Al, and Ti metal oxide interlayers as diffusion barriers to enhance Li-ion transfer between LiCoO2 and LLZO. These interlayers reduce interfacial impedance from 8 kΩ cm² to 1 kΩ cm², improving battery performance. Li-Nb-O interlayer stands out, delivering the highest discharge capacities.

How Paios was used

Electrochemical impedance spectroscopic measurements were performed between 5 MHz and 1 Hz with an AC amplitude of 50 mV using Paios.