Through an internal commitment to innovation, we have made progress in different aluminum battery configurations, and in the development of new electrolytes and electrode materials.
Each configuration is developed focusing on the technical needs and costs of the markets to which each of our technologies responds (stationary applications, electric mobility and portable devices), always with a high degree of sustainability.
Metal-air battery configuration is one of the most promising battery technologies to achieve high specific energy values (Wh/kg), electric mobility being its star application. The objective is to increase the autonomy of the batteries, reducing their weight and cost, improving the performance of electric vehicles and making them able to compete effectively with combustion engine vehicles.
Although its of technology readiness level is still precursor, one of its main advantages when it comes to saving weight and cost in the system is that it uses oxygen from the atmosphere as one of the active materials of the electrochemical charge and discharge reaction during its operation.
At Albufera’s laboratories we have reached specific energy values of 2,140 Wh/kg in material test cells at the 10 mAh level with Aluminum-air technology. Scaling up to values around 1,000 Wh/kg in vehicle prototypes is possible by 2025, based on time frames that is in use in the automotive sector and with the projects we have underway in the aeronautical and military sectors.
To do this, we are working on new materials and processes related to gas reaction catalysts, allowing higher processing speeds, which have an impact on adequate operating power for its commercial use in electric vehicles, and an increase in the stability of the oxygen electrode, which allows a sufficient number of charges and discharges for its massive use in mobility.
The best battery structure for portable size applications will be one that uses a form of high viscosity gel or solid electrolytes. The lower ionic conductivity of this type of materials compared to traditional liquid electrolytes means that the most suitable applications do not require very fast charges and discharges (preferably above than 5 hours).
Its use is foreseen for portable electronic equipment due to its high specific energy predicted in the first tests carried out, and the ease of preparing different safe formats for these components.
Although its release to the market is estimated for the year 2030, in Albufera we have already tested some advanced ionogels that have been tested in the aerospace industry combined with aluminum molecules that can transport the ions of our batteries between the anode and the cathode at suitable speeds and obtaining powers greater than 300 W/kg.
In parallel, the insertion and transport of trivalent aluminum cations will allow us to achieve specific energy values above 500 Wh/kg, to make this technology a safe asset for all types of portable electronic devices with high energy consumption or with operational needs of more than 100 hours non-stop.