Coupled Heat, Strain and Electrochemistry Fingerprints: A multi-physics in-situ and Operando FBG Based Lithium-Ion Cells Diagnostics.
Understanding the interplay between electrochemical, mechanical, and thermal processes during battery operation at the multi-physics level is essential for improving both performance and safety. In this work, we extend conventional incremental diagnostic approaches by employing spatially distributed, multiplexed Fiber Bragg Grating (FBG) sensors to track the evolution of strain and temperature across different regions of […]
Phase Transitions in Commercial NFM | Hard Carbon Sodium-Ion Cells: Study on Cut-off Voltage related Aging
Sodium-ion batteries have recently gained attention as a complementary technology to lithium-ion systems. Their use of abundant and low-cost raw materials makes them a promising option for cheap electric vehicles and large-scale stationary storage applications. In recent years, they have moved beyond laboratory research into first commercial systems, which predominantly employ hard carbon anodes in […]
From Basic Investigations to High-Voltage Performance: Biobased Additives in Electrolyte Design
As lithium‑ion batteries push toward higher voltages to unlock greater energy density, their most stubborn limitation remains the electrolyte. Beyond 4.3 V, the delicate balance between stability and reactivity is lost as electrodes corrode, the electrolyte decomposes, and lithium plating becomes a real safety concern. One promising route to overcome these issues lies in tailoring […]
Innovative two-step approach for recycling end-of-life sodium-ion batteries
As global demand for energy storage systems continues to expand, the search for sustainable and cost effective alternatives to lithium ion batteries has intensified. Among the emerging candidates, sodium ion batteries (SIBs) stand out due to their low cost, and wide geographical availability of sodium compared to lithium. These advantages make SIBs especially attractive for […]
Innovative two-step approach for recycling end-of-life sodium-ion batteries
As global demand for energy storage systems continues to expand, the search for sustainable and cost effective alternatives to lithium ion batteries has intensified. Among the emerging candidates, sodium ion batteries (SIBs) stand out due to their low cost, and wide geographical availability of sodium compared to lithium. These advantages make SIBs especially attractive for […]
How do particles affect vented thermal runaway in confined battery systems?
Concerns about the safety of lithium-ion batteries have intensified due to incidents involving battery thermal runaway in electric vehicles, energy storage systems, and even e-bikes. During thermal runaway, batteries can release significant heat and eject high-temperature reaction products, posing risks to adjacent batteries and surrounding structural components. Computational modelling has emerged as an effective tool […]
Amorphous MOF-Coated Separators for Durable Lithium–Sulfur Batteries
Lithium–sulfur (Li–S) batteries are attractive next-generation energy-storage systems due to their high theoretical energy density and the abundance of sulfur. However, their practical application remains limited by the polysulfide shuttle effect, where soluble lithium polysulfides migrate through the separator, leading to active material loss, low Coulombic efficiency, and rapid capacity fading. These challenges become even […]
Enhanced ASSB Cell with Frame Pouch Design
This contribution presents AVL’s latest advancements in the development and industrialization of All‑Solid‑State Batteries (ASSBs), with a focus on both cell‑level technology improvements and system‑level integration strategies. As the global battery industry intensifies its efforts toward solid‑state concepts, significant challenges remain in scaling production, ensuring material stability, and adapting battery‑pack architectures to new cell behaviors. […]
Power play: A multi-criteria analysis of present and future battery technologies.
Advancing electrification requires batteries that combine high performance with sustainability, cost-effectiveness, and supply-chain resilience. Post lithium-ion batteries (PLIBs) such as sodium-ion (SIB), lithium-sulfur (LSB), and solid-state batteries (SSB) are widely discussed as alternatives to today’s lithium-ion batteries (LIBs), yet discussion of their technical and sustainability benefits and drawbacks remains fragmented. Here, we present an integrated, […]
Diagnostic-Induced Deterioration in Lithium-Ion Cells: Separator Effects
The growing demand for lithium-ion batteries (LIBs) and the parallel need for efficient recycling processes highlight the importance of reliable diagnostic methodologies that enable accurate performance evaluation of recovered materials. However, characterization procedures themselves may affect the electrochemical behavior and mask the intrinsic properties of cells and components. This study examines the influence of characterization […]