Community Research and Development Information Service - CORDIS

H2020

ALION Report Summary

Project ID: 646286
Funded under: H2020-EU.2.1.3.4.

Periodic Reporting for period 1 - ALION (HIGH SPECIFIC ENERGY ALUMINIUM-ION RECHARGEABLE DECENTRALIZED ELECTRICITY GENERATION SOURCES)

Reporting period: 2015-06-01 to 2016-11-30

Summary of the context and overall objectives of the project

ALION (High Specific Energy Aluminium-ion rechargable decentralised electricity generation sources) focuses on the development of Al-ion battery technology for energy storage application in decentralized electricity generation sources.
The overall objective of the ALION project is to develop aluminium-ion battery technology for energy storage application in decentralised electricity generation sources. ALION pursues an integral approach comprising electroactive materials based on “rocking chair” mechanism, robust ionic liquid-based electrolytes as well as novel cell and battery concepts, finally resulting in a technology with much lower cost, improved performance, safety and reliability with respect to current energy storage solutions (e.g. Pumped hydro storage, Compressed air energy storage, Li-ion battery, Redox Flow Battery…).
The project covers the whole value chain from materials and component manufacturers, battery assembler, until the technology validation in specific electric microgrid system including renewable energy source (i.e. mini wind turbine, photovoltaic system…). Thus, the final objective of this project is to obtain an Al-ion battery module validated in a relevant environment, with a specific energy of 400 W.h/kg, a voltage of 48V and a cycle life of 3000 cycles.
ALION is participating in the development of new generation technologies for energy storage and then contributes to the growth of the renewable energies.

Work performed from the beginning of the project to the end of the period covered by the report and main results achieved so far

During these first 18 months, work has been focused on the development of new materials for the different battery components. In total, the preparation and screening of 70 electrode materials and 15 electrolytes has been carried out, resulting to a lab battery cell with a specific capacity of 70 mAh/g at 25 mA/g, a discharge voltage of 2V and a cyclability of 2000 cycles. Moreover, a model of the Al battery has been set up in order to investigate the influence of various design parameters on the battery performances. In parallel to this work, the life cycle assessment and recycling of the Al battery is being studied.

Progress beyond the state of the art and expected potential impact (including the socio-economic impact and the wider societal implications of the project so far)

The results obtained so far are comparable to current state-of-art but stay below the performance of Li-ion technology in terms of specific energy and power. The competitiveness of the Al-ion technology will be the material costs and the recyclability, which could be determining for some application like stationary battery. Moreover aluminum is cheaper and more available than lithium that comes from a few countries. The sustainable supply of aluminum makes it a more favorable alternative to many active materials used for battery storage. ALION will also help for the implementation of materials enabling low carbon energy technologies. Indeed, an ionic liquid based electrolyte of milder corrosivity has been formulated and demonstrated to be suitable for application in aluminium batteries. In terms of aqueous electrolytes, a milder aqueous electrolyte has also been formulated and demonstrated as a viable electrolyte for Al-ion battery. Ceramic materials have been developed for the electrodes.

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