SiLiS · High capacity all-solid-state silicon-lithium-sulfide cells for energy storage applications
Horizon Europe — Marie Skłodowska-Curie Actions
- Duration
- 2022-09-01 → 2024-08-31
- EU contribution
- €215,534
- Participants
- 2
- Scheme
- HORIZON-TMA-MSCA-PF-EF
Lines connect the coordinator with its partners.
Results in brief
High capacity all-solid-state silicon-lithium-sulfide cells for energy storage applications
Energy plays an indispensable role in our everyday lives. The dependence on fossil fuels to meet the energy demands and the resultant emission of greenhouse gases adversely affect the atmosphere. To alleviate the effects of climate change and ensure a sustainable energy future, it is imperative to develop affordable and efficient battery technologies. The project aimed to design the best combination of cathode and anode materials and solid polymer electrolyte, to develop safe and eco-friendly cells with high energy density and cycling stability for next-generation energy storage applications. Relying on renewable, pollution-free energy sources, backed by efficient storage systems, will enable electric transportation and thus foster a greener and healthier environment. This project addressed the objective of developing a high-capacity silicon anode using an innovative technique that embeds silicon particles in a carbon-rich silicon oxycarbide. This silicon oxycarbide acts as a buffer matrix, mitigating the volume expansion of silicon and improving its electrical conductivity. Additionally, the project focused on developing an all-solid-state battery that pairs the silicon-based anode with a high-capacity sulfur cathode and a solid polymer electrolyte. This combination not only addresses the safety concerns of conventional lithium-ion batteries by eliminating the flammable liquid electrolyte, but also significantly increases the energy density because of the high-capacity sulfur cathode.
Data: CORDIS, © European Union
Project objective
Rechargeable energy storage systems attract worldwide scientific and industrial interest due to their widespread applications. From the perspective of single customer, these batteries have been found useful in various portable devices and even in electric vehicles (EVs). Being practical in many circumstances, they have even more distinct role in reducing global warming and the emission of greenhouse gases. Together with the limited sources of fossil fuels, these aspects have driven the efforts to utilize more green sources of energy like wind and solar power, aiming at sustainable energy production. One critical factor on the way to zero-carbon footprint is to change the transportation to function solely with green electricity. The current EV industry depends heavily on lithium-ion batteries which face technological challenges like limited storage capacity and safety concerns related to the use of liquid electrolytes. Further, these batteries utilize materials that are far from being sustainable and environment friendly. To address these issues, the proposed SiLiS project will focus to develop new battery technology employing high-capacity silicon anode, lithium sulfide-based cathode, and stable and safe polymer based solid electrolyte. The project will support the development of cost-effective batteries to reduce greenhouse gas emissions from transportation by means of electric vehicles. The proposed all-solid-state silicon-sulfur cells (SSCs) is expected to have the gravimetric energy density of 750 Wh/kg, power density of 1500 W/kg and volumetric energy density of 1300 Wh/L. The novel high energy density battery will be of low cost, with a prolonged cycle life which is better than the current Li-ion battery. Thus, SiLiS will develop next generation rechargeable batteries by employing novel material synthesis routes and cell design that enable EVs to have long driving range with minimum safety concerns at a lower cost.
Original text from CORDIS.
Participants
Links
- View on CORDIS
- DOI: 10.3030/101063976
- https://ec.europa.eu/research/participants/documents/downloadPublic?documentIds=080166e510338d9b&appId=PPGMS
- https://ec.europa.eu/research/participants/documents/downloadPublic?documentIds=080166e5f85c9937&appId=PPGMS
Data: CORDIS, © European Union