On the role of UV crosslinking to enhance moderate-temperature operation of truly solid-state Li-metal batteries based on recycled-PVB-modified polyether electrolytes
Year: 2025
Type: article
Abstract: The growing demand for safe, high-energy-density, and flexible energy storage systems has positioned truly solid-state lithium metal batteries (SSLMBs) as a promising solution for next-generation energy storage technologies, chiefly including electric vehicles and wearable electronics. Unleashing their potential requires scalable, industrially viable fabrication methods compatible with mild processing conditions. At the same time, promoting sustainable practices, such as material reuse and waste reduction, is essential for environmentally responsible, sustainable-by-design battery development. Herein, we report a flexible, self-standing, truly solid polymer electrolyte (SPE) fabricated via a simple, solvent-free UV-induced crosslinking (UV-curing) process that supports moderate-temperature processing and large-scale manufacturing. The crosslinked polymer electrolyte combines poly(ethylene oxide) (PEO), the ion-conductive phase, with recycled poly(vinyl butyral) (Re-PVB), a mechanically robust polymer derived from laminated glass waste. Laboratory-scale truly SSLMB cells with high-loading LFP catholyte show remarkable performance with almost full specific capacity delivered at low C-rate and exhibiting excellent rate capability at 40 °C. Noteworthy, promising performance is also obtained in lab-scale cells with high-loading NMC811 catholyte. Overall, this dual-modified SPE development strategy, combining UV-crosslinking and the use of recycled polymers, offers an energy-efficient and sustainable route toward high-performance solid polymer electrolytes, advancing the practical and eco-friendly development of next-generation SSLMBs.
Source: Journal of Power Sources
Authors: Leonardo Balducci, Hamideh Darjazi, Alessandro Piovano, Giuseppe Antonio Elia, Claudio Gerbaldi
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,230
Awards: G1303340219, G1701459420, G177603493, G1869620372, G1918513649, G1941997073, G205513365, G2649423451, MultiSensor sorting tools in a circular economy approach for the efficient recycling of PVB interlayer material in high-quality prodUcts from laminated glass coNstRuction and demolItion waStEs, G2929079224, G4729277457, G5751460676, G617682206
OpenAlex ID: W7104654310