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From the Instituto Tecnológico de la Energía (ITE) we have the objective of facilitating the process of sustainable and efficient energy transition to companies and society.


Recovery of high value-added materials through the recycling of lithium batteries, agroforestry and industrial waste


Energy storage systems such as lithium-ion batteries are made of high-value materials that in some cases are scarce in the earth’s crust. Therefore, due to the increasing penetration of electric vehicles in the market, the demand for raw materials for the manufacture of lithium batteries has increased, and there is a need to look for new sustainable and local sources to improve the sustainability of the production process. Furthermore, in this context, it is essential for the sustainability of lithium batteries, to recycle them at the end of their life to recover their component materials so that they can be reintroduced at the beginning of the battery value chain for the manufacture of new batteries.

The REBALIRE project focuses, on the one hand, on the optimization of the process of obtaining silicon and sustainable carbon for the development of lithium battery anodes, from the revaluation of agroforestry and industrial waste containing significant amounts of silicon in its composition. On the other hand, it is intended to develop a recycling process for NMC type lithium batteries in order to provide a solution and face the imminent arrival of a large number of end-of-life batteries. Development is focused on the use of processes and technologies that improve recycling efficiency, reduction of toxic gas emissions, as well as the use of chemical agents in the extraction stages that are less environmentally damaging than the strategies currently employed.


The general objective of the REBALIRE project is to develop strategies to improve the sustainability of lithium batteries by:

1) Obtaining anodic materials from waste revaluation 

2) Lithium battery recycling. 

The specific objectives for 2023 are as follows: 


  • Development of anodic materials from waste revaluation 
  • Improvement of the process to obtain sustainable Si and Si/C for batteries from agroforestry residues. 
  • Analysis of Si recovery processes for anodes from other industrial wastes of interest. 
  • Development of Si electrodes: Parameter study with reference model 
  • Design of the process for the production of activated biochar from bioprecursors 


  • Lithium battery recycling 
  • Definition, protocol, deactivation and storage of end-of-life batteries 
  • Design of recycling methodology for NMC type batteries 


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The expected results of the REBALIRE project for the 2023 annuity are: 

  • Sustainable Si and Si/C for waste-based batteries 
  • Process for the production of activated biocarbons from bioprecursors 
  • Protocol for deactivation and storage and transport of end-of-life batteries 
  • Recycling process: NMC lithium batteries 
  • Cobalt composite recovered from NMC-type lithium battery 

This research is supported by the Generalitat Valenciana through the Department of Innovation, Universities, Science and Digital Society by means of an R&D agreement with the Generalitat Valenciana within the aids directed to technological centres of the Comunitat Valenciana 





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