Project description
Improving silicon batteries
Solid-state batteries offer higher energy storage and greater safety than standard lithium-ion cells. However, silicon-based anodes face mechanical failures during charging and discharging. The reason is that silicon expands and contracts, creating gaps between the anode and the solid electrolyte, disrupting the flow of electricity and shortening the battery’s lifespan. Supported by the Marie Skłodowska-Curie Actions programme, the SIASSB project aims to develop a flexible, conductive network within the anode using an elastic solid electrolyte that acts as a cushion. This network absorbs the physical strain, maintains contact between the materials and ensures battery stability over many cycles. SIASSB uses materials science and electrochemistry to improve these power sources. The project aims to bring safe, high-performance batteries closer to the global market.
Objective
With higher energy density and better safety, all-solid-state batteries (ASSBs) are considered as an important direction for the next generation of lithium batteries, as well as part of the EU's battery program. The replacement of liquid electrolytes with solid electrolytes (SEs) has led to an unprecedented level of research on Li metal anodes. However, uneven deposition of Li-ions leads to lithium dendrites and interfacial gaps, which is an unavoidable electrochemical behavior and unavoidable. Silicon (Si) materials are underappreciated due to the large volume change during cycling. Nevertheless, Li-ions inserting and extracting within the Si-based electrode causes volume changes and a local separation from the SE, which is a mechanical behavior and prospectively avoidable.
This proposal aims to provide a comprehensive solution for Si-based ASSBs that achieve stable long-cycle performance without excessive external stack pressure. Achieving this goal involves not only investigating SEs but also tackling issues such as low expansion Si-based materials, strain mismatch between the anode and SE, and managing complex interfaces. Specifically, the flexible conductive network in the anode electrode will provide some cushioning against volume changes of Si-based materials, and provide a long-lasting conductive environment for the electrode, which is an important guarantee for the long-term cycle of the battery. At the same time, a complex electrolyte with a certain degree of elasticity will mitigate the strain mismatch of thin-film bonding between the Si-based anodes electrode film and the SE film. The results of SIASSB provide a foundation for advancing the commercial viability of ASSBs.
SIASSB will be expected not only to advance the scientific understanding of ASSBs but also to lay a solid foundation for enhancing their commercial viability.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences inorganic chemistry alkali metals
- natural sciences chemical sciences inorganic chemistry metalloids
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2024-PF-01
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
4704 553 Braga
Portugal
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.