HEИндивидуална стипендия2023–2025

OXBLOLYTE · Innovative approach by developing oxygen blocking membrane electrolytes for novel solid state sodium-air batteries

„Хоризонт Европа“ — Действия „Мария Склодовска-Кюри“

Период: 2023-04-17 → 2025-04-16
Финансиране от ЕС: 181 153 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Нови полимерни мембрани за натриево-въздушни батерии се тестват, за да спрат преминаването на кислород през електролита. Това помага за подобряване на стабилността и капацитета на следващото поколение системи за съхранение на енергия.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Innovative approach by developing oxygen blocking membrane electrolytes for novel solid state sodium-air batteries

The OXBLOLYTE project addressed critical challenges in sodium-based batteries (NaBs) by developing innovative polymeric membranes based on microporous Polymers of Intrinsic Microporosity (PIMs), in combination with ionic liquids (ILs). The primary objective was to engineer a novel quasi-solid polymer electrolyte (QSPE), either in the form of PIM/IL or PIM/liquid electrolyte (LE) systems, capable of delivering high ionic conductivity, suppressing oxygen crossover, and enhancing battery stability. The project successfully met its main goals. High-purity (>99%) PIM membranes with tailored pore sizes ranging from 2 to 10 nm were synthesized and integrated with ionic liquids to fabricate QSPEs. These electrolytes demonstrated excellent electrochemical performance, with ionic conductivities in the range of 10⁻³ to 10⁻⁴ S cm⁻¹, a favorable sodium-ion transference number (tNₐ⁺), and outstanding stability. When tested in Na–O2 batteries, the QSPEs enabled stable cycling for 40–50 cycles, delivering capacities of 2–3 mAh cm⁻² at a current density of 75 µA cm⁻². These promising results confirm the effectiveness of combining PIMs with ILs, offering improved oxygen solubility, minimized oxygen crossover, and enhanced control over discharge products. Importantly, the developed QSPE materials demonstrate strong potential not only for Na–O2 batteries but also for next-generation Na-ion battery technologies, thereby contributing to the advancement of sustainable and high-performance energy storage solutions.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The EUs notion to become climate neutral in 2050, as per the EU Green Deal, strives to transform the economy through advancements in clean renewable energy. While rechargeable Li-ion batteries sustain the current market for energy storage, they cannot continue to achieve the transformative scale of improvement required due to the finite supply of lithium, and their limited energy storage capacities, among others. Sodium-air batteries (NaBs) provide an attractive alternative due to the abundance of sodium thus low cost and their lightweight porous air cathodes to reach greater energy densities. Todays traditional electrolytes are unstable towards Na metal and radical species generated during cycling, allowing oxygen crossover to the anode, which results in battery failure. Moreover, their liquid nature leads to evaporation and leakage issues. OXBLOLYTE Postdoctoral Fellowship will overcome these challenges by developing novel solid-state electrolytes based on Polymer of Intrinsic Microporosity membranes combined with conducting Organic Ionic Plastic Crystal materials. In parallel to these practical concerns, OXBLOLYTE will unravel mechanistic understanding of solid-state NaBs a field currently unexplored - to allow the correct choice of electrolyte. The research fellow, Dr. Yahia (with expertise in polymer membranes), will conduct the OXBLOLYTE project at CIC energiGUNE (Spain) with the host supervisor, Dr. Ortiz-Vitoriano (pioneer in the relevant research field) which includes mechanical property studies under the supervisor of Dr. Sardon (with expertise in polymers) at Polymat (Spain). OXBLOLYTE facilitates the transfer of 3 Is knowledge whilst diversifying Dr. Yahias networks and leadership skills to further advance his career perspectives and employability. As a result, OXBLOBLYTE will lead to research outputs that will be disseminated to the general public, scientific community and industry with the final aim to enlarge its exploitation potential.

Оригинален текст от CORDIS (на английски).

Участници

CENTRO DE INVESTIGACION COOPERATIVA DE ENERGIAS ALTERNATIVAS FUNDACION, CIC ENERGIGUNE FUNDAZIOA · MINANO ALAVAКоординаторИспания