Development of advanced all-solid-state Li-ion battery (ASSB) cells require new materials to be developed together with more sustainable manufacturing techniques such as 3D printing. The cathode and its compatibility with the solid electrolyte are two important components that need to be improved in order to fabricate high gravimetric energy density (400+ Whkg-1) cells with long cycle life 1000+ cycles and fast charge/discharge capacity of at least 5C. The new cathodes need to fulfill important social and environmental aspects as defined in the EU strategic action plan on batteries, and avoid the use of critical raw materials (CRMs) such as cobalt.
The olivine LiFePO4 presents excellent properties in terms of environmental friendliness and cost, and is known to have a stable discharge capacity of 150 mAhg-1 for 1000+ cycles. To increase the material performance and improve overall contact resistance between the cathode and electrolyte, the OLiBat project proposes two developments (generations) together with new processing conditions for the interface. Overall, the Co-free cathode material proposed in the OLiBat project aims to speed-up the development of highly performing advanced ASSB cells at lower cost while fulfilling the ambitious target of reducing CRMs in (next) generation 4 batteries as set by the EU.
OLIBAT (TED2021-129663A-C53) es un proyecto financiado por MCIN/AEI/10.13039/ 501100011033 y por la Unión Europea “NextGenerationEU”/PRTR.
