2BoSS innovation is a Si-Li2S battery technology made of a cobalt free Li2S-based cathode and a graphite-dendrite free silicon-based anode which is under development within the 2BoSS project (https://2boss.eu/). Besides improving performance and safety, as well as minimizing the use of Critical Raw Materials (CRMs), a key advantage of the battery technology here proposed is the easier recycling of its raw materials. 2BoSS batteries are designed to use no metal collector and to incorporate no metal additive at the cathode, anode, and electrolyte, which will allow a more effective and economical separation of the two key raw materials: silicon and lithium.
2BoSS is validating effective lixiviation strategies to separate and regenerate the battery key elements and defining its upscaling.
Batteries are an essential component of portable devices and electric vehicles, and their rapid growth requires both to secure the availability of the used raw materials and to develop effective and economical strategies for their recycling. Lithium-ion batteries are the current dominating technology, but they have several intrinsic limitations that hinder their sustainable production, such as a moderate specific energy capacity and durability, a strong reliance on several CRMs, and the complex and costly recycling of these CRMs related to their dispersion and intermixing with other metals.
The proposed technology offers a higher energy density and theoretical capacity, use of abundant materials and increased safety compared to traditional lithium-ion batteries. 2BoSS technology solves the challenges consumers, industrial users and society at large are facing in terms of safety, reliability, environmental and social sustainability of electrification of mobility. With our battery innovation the future of EVs is in line with key customer requirements and with all the upcoming regulations, especially Critical Raw Materials Act target objectives, circularity of design and valorization of recycled materials.