Li-EcoSafe - Development of low-cost and safer lithium-ion batteries
Overview
Background & policy context:
The availability of safe, environmentally friendly and low-cost lithium-ion batteries constitutes a key challenge for the electromobility and the use of renewable energies. However, lithium-ion batteries do not yet fully meet the requirements of users in terms of cost, security, and availability of materials.
Objectives:
The main objective of the project is to increase the reliability and security of these batteries along the complete line of development. Further objectives are described as follows:
• Boosting the environmental performance, operation, and security of supply by use of new safe and available electrode materials.
• Increased stability of the electrode/electrolyte interfaces.
• Development of new analytical methods for the materials and interfacial characterization and a security system through a customized operating strategy
Methodology:
To achieve these objectives, the following solution approaches are defined:
• Replacement of nickel-cobalt-based layer oxides by a list of available cathode materials
• Evaluation of organic materials as electrode material, binder and lightning arrester metal - and heavy metal-free alternative.
• Replacement of synthetic graphite by inexpensive graphite waste products and carbon composites.
• Development of a comprehensive understanding of the anode or cathode interfaces by means of working with model systems and new analytical methods,
• Optimization of interfacial stability through surface modification, electrolyte additives and/or thermally resistant coatings
• Development of methods for assessing the security of components and cells with the help of experiments and simulations
• Development of optimized operation strategies on the basis of a reliable diagnosis, verification of modelling through application-oriented research.
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