AMAPOLA project investigating aluminum-sulfur batteries; up to 660 Wh/l and 400 Wh/kg – Green Car Congress

Researchers in the European AMAPOLA (A Marketable Polymer based Al-S battery) project are analyzing the combination of sulfur and aluminum in a battery; both elements are abundant in the earth’s crust. The goal is to enable greater energy storage capabilities compared to Li–ion batteries at a lower price for selected markets including transport and aerospace.

The Al-S cell has very high prospective values for energy density (660 Wh/l) and specific energy (400 Wh/kg) at the cell level, taking advantage of the incorporation ofinnovative polymer gel electrolytes (PGEs) based on novel highly conductive and inexpensive deep eutectic solvents (DES) for a cheaper, lighter, tougher and safer battery concept.

AMAPOLA is a Future and Emerging Technologies (FET) Proactive project funded under the EIC Transition to Innovation Activities; it build on the developments achieved in the Pathfinder (FET-Open) project SALBAGE, which concluded earlier this year, which an eye toward commercialization.

SALBAGE worked on developing a new secondary aluminum sulfur battery, with the focus on the synthesis of solid-like electrolytes based on polymerizable ionic liquids and Deep Eutectic Solvents in order to obtain polymer-gel electrolytes with an overall ionic conductivity in the range of 1-10 mS/cm at room temperature.

In AMAPOLA, the focus is on:

  • Further developing the materials proposed in SALBAGE with special emphasis on the preparation of controlled-phase gel electrolytes from highly conductive novel DES; the development of advanced cathode formulations to achieve high sulfur loading and high sulfur utilization in the cathode in combination with new promising redox mediators; and strategies to overcome the presence of oxide layer in the aluminium anode.

  • Up-scale and extrapolate towards real application .

  • Pre-industrialization.

The AMAPOLA consortium is coordinated by HEMPOL group (ICTP-CSIC) and includes researchers from University of Leicester, Graz University of Technology (TUGraz), University of Southampton and Technical University of Denmark (DTU), the battery company Varta Microinnovation and the SME Tech2Market.


June 1, 2021 sally Wood