Use of Amorphous Titanium-Based Compound as an Electroactive Electrode Material for Aluminium Batteries

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This invention introduces the use of an amorphous titanium-based compound, specifically a titanium oxy-hydroxy hydrate, as an electroactive electrode material for aluminium batteries. Unlike traditional electrodes, this compound provides a unique combination of local order and long-range disorder at the nanometer scale, enhancing its ability to reversibly intercalate aluminium ions. The material can be used alone or coated onto carbon substrates like carbon nanotubes or graphite to further improve performance. The invention addresses the limitations of current aluminium-ion batteries by providing higher storage capacity through this improved electrode material.

Use CasesContent extracted from patent full text and abstract with AI.

• Aluminium-ion rechargeable batteries for consumer electronics (e.g., smartphones, laptops).
• Energy storage systems for renewable power integration (solar, wind).
• Electric vehicles and transportation batteries as an alternative to lithium-ion.
• Grid-scale storage solutions to balance energy supply and demand.
• Backup power systems for data centers and telecommunications.

BenefitsContent extracted from patent full text and abstract with AI.

• Increased energy storage capacity compared to conventional aluminium battery electrodes, offering up to five times higher capacity.
• Use of abundant and inexpensive aluminium, helping to address raw material supply concerns prevalent with lithium.
• Improved reversibility and stability of aluminium ion intercalation, leading to longer cycle life and reliable performance.
• Safer alternative to lithium-ion batteries due to aluminium's non-flammable nature.
• Potential to reduce costs of electrochemical energy storage, thus facilitating broader adoption of sustainable energy storage technologies.

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Patent Abstract

The invention relates to an aluminium battery comprising an electrode made of a material comprising a titanium oxy-hydroxy hydrate, to the use of a titanium oxy-hydroxy hydrate in the manufacture of an electrode of an aluminium battery and to process for manufacturing an aluminium battery comprising a step of manufacturing an electrode comprising a titanium oxy-hydroxy hydrate. The aluminium battery of the invention comprises at least two electrodes and an aluminium-based electrolyte wherein one of the electrodes is made of a material comprising a titanium oxy-hydroxy hydrate having the chemical formula I TiO x (OH) y ,nH 2 O and having a local ordered structure over a distance of 1 nm inclusive as determined by Pair Distribution Function (PDF) obtained by synchrotron diffraction but having a disordered structure at a distance higher than 1 nm as shown by X-ray diffraction. The invention finds application in the field of storage and release of energy.