Pedro López-Aranguren

CIC energigune
Pedro López-Aranguren

What do you like about science?

I find science an exciting way of observing our fascinating surrounding phenomena that gives me the incentive on the daily life. Although science can be most of the time ungrateful, I enjoy the road of understanding that one needs to take to reach the goals.

If you have not become a scientist, what would you be today?

I am passionate about bread science and natural fermentation taking place from yeast and bacteria naturally present in grains. It fascinates me the simplicity and at the same time so complex biology and chemistry behind the mixture of three simple ingredients: flour, water and salt. I currently run a small project with a friend that grows ancient grains and I guess I would have run a small bakery.

What is your favorite place at work? Outside work?

Since I was a child, I have been in contact with nature most of my time. I find mountains the most beautiful places in the world. I started climbing ten years ago and being close to rocks and mountains helps me to find peace and to clear my mind.

What is your role in the SUBLIME project?

I am coordinating the work package on the cell assembly and electrochemical characterization at lab scale in SUBLIME. Partners collaborating in this work package aim to understand properties of materials and to process them into battery components. Those components are assembled for cycling into small coin cells. Our goal is to optimize the solid electrolyte, electrodes and cell assembly procedures to upscale the technology towards larger capacity devices in pouch cell format.

How do you think will the results of SUBLIME contribute to a more sustainable world? How will the world be different after SUBLIME?

SUBLIME will definitely contribute to the deployment of the new generation of solid-state batteries for electromobility applications. The high value chain from partners working for SUBLIME will pave the way for this technology towards an industrial level, considering sustainability aspects from materials to cell production. The efforts and high expertise from partners in SUBLIME is already contributing to overcome scientific and technological challenges. There is a before and an after at the start of SUBLIME

What research are you conducting at your institution and how is it applied in the SUBLIME project?

At CIC energigune I work for the ceramic-rich electrolyte research line, leading innovative and breakthrough oriented solid electrolytes for safe, long-lasting, and high energy/power lithium solid-state batteries with high ionic conductivity, stability at high voltages, resistant to dendrite growth, low interfacial resistance (ASR), etc. The research covers from the synthesis of inorganic ceramic electrolytes to the integration of active fillers in flexible matrices and using additive molecules. Finally, the final cell integration of the developed ionic conductors in different formats ( solid-state batteries, quasi-solid batteries, semi-flexible batteries, all-inorganic batteries) is implemented and tested using various cell designs and testing protocols. The integration of solid ceramic-rich electrolytes in a positive electrode is also performed. The research line activity focuses on the development and integration of inorganic oxides (garnet -LLZO-, perovskite -LLTO-, glass ceramics), phosphates (NASICON-type structures: LATP), sulfides, composite and hybrid electrolytes, membranes, integration of new salts, polymers, OIPC with ceramic fillers, novel high performing chemistries and structures, material customization for full cell (post-lithium, fuel cells, redox flow).

The research and development of these high-performance solid-electrolytes is application-driven and fulfills with all the goals from SUBLIME project.