With the current global projection of over 130 million electric vehicles (EVs), there soon will be a need for battery waste management. Especially for all‐solid‐state lithium‐ion batteries (lithium ASSBs), aspects of waste management and circular economy have not been addressed so far. Within such ASSBs, the use of solid‐electrolytes like garnet‐type Li_6.5La₃Zr_1.5Ta_0.5O₁₂ (LLZTO) may shift focus on strategies to recover not only the transition metal elements but also elements like La/Zr/Ta. In this work, we present a two‐step recycling approach using citric acid as the leaching agent to separate and recover the individual components of a model cell comprising of Li₄Ti₅O₁₂ (LTO) anode, Li_6.5La₃Zr_1.5Ta_0.5O₁₂ (LLZTO) garnet electrolyte and LiNi_1/3Mn_1/3Co_1/3O₂ (NMC) cathode. We observe that by adjusting the concentration of citric acid, it was possible to separate the materials from each other without strong mixing of individual phases and also to maintain their principle performance characteristics. Thus, the process developed has a potential for upscaling and can guide towards considering separation capability of battery components in the development of lithium ASSBs.

Fungal contaminations pose a persistent challenge in the fields of healthcare, agriculture, and industry, primarily due to their environmental adaptability and increasing resistance to antifungal agents. In this study Aspergillus niger is utilized as model organism. This work evaluates copper, brass, and steel surfaces functionalized with ultrashort pulsed laser‐induced periodic surface structures (USP‐DLIP) designed as 3 and 9 µm topographies. Fungal spore viability assays show that 9 µm periodicities on copper surfaces achieve a 99% reduction in spore viability, indicating that increased copper ion release is a key factor in enhanced antifungal effectivity. Scanning electron microscopy (SEM) analysis confirm substantial spore damage, linked to the viability testing and the measured copper ion release by inductively coupled plasma triple quadrupole mass spectrometry (ICP‐QQQ) spectrometry. Interestingly, 9 µm structured steel surfaces reveal a trend toward antifungal activity despite their inert nature. Whereas structured brass surfaces do not show significant improvement in antifungal activity. These findings suggest USP‐DLIP structuring on copper and stainless‐steel surfaces have considerable potential for antifungal applications, although interactions between surface structures, released ions, and fungal spores are highly complex. Yet, USP‐DLIP offers promising advantages for developing advanced antifungal materials.