BrainMap

Cosmin Ungureanu

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Researcher

Expertise & keywords

Sustainable and safe batteries based on new sulfuric materials and quasi-solid electrolytes Call name: PNCDI IV, SP 5.7.1 - Proiect experimental demonstrativ
PN-IV-P7-7.1-PED-2024-2281 2025 - 2026

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU TEHNOLOGII CRIOGENICE SI IZOTOPICE - I.C.S.I. RAMNICU VALCEA

Project partners: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU TEHNOLOGII CRIOGENICE SI IZOTOPICE - I.C.S.I. RAMNICU VALCEA (RO); SOLANTIS LABORATORY S.R.L. (RO)

Affiliation:

Project website: https://www.icsi.ro/safebat/

Abstract:

The SAFEBAT project aims to develop, test and validate a new type of batteries by integrating innovative active materials based on sulpfur and quasi-solid electrolytes in CR2032 cells. Using a multidisciplinary approach, the project will build on both nanotechnology and energy achievements to overcome the limitations of current next-generation battery technology and increase the technology development level (TRL) of Li-S batteries.

New Li-S batteries will be obtained using carbonaceous materials based on sulfur and quasi-solid electrolytes, with new active materials based on sulfur synthesised and integrated into cathode electrodes. The scope of integrating these new active materials into batteries is to increase the theoretical capacity and energy density, also considering two significant advantages: (i) the production of Li-S batteries is environmentally friendly, and (ii) the production costs are low.

Hybrid power-energy electrodes for next generation lithium-ion batteries Call name: P 3 - SP 3.6 - Premierea participării în Orizont 2020
PN-III-P3-3.6-H2020-2020-0183 2022 - 2023

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU TEHNOLOGII CRIOGENICE SI IZOTOPICE - I.C.S.I. RAMNICU VALCEA

Project partners: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU TEHNOLOGII CRIOGENICE SI IZOTOPICE - I.C.S.I. RAMNICU VALCEA (RO)

Affiliation:

Project website: https://www.icsi.ro/hydra/

Abstract:

Li-ion batteries are considered by the European Green Deal a key enabling technology for the competitiveness of many sectors, as reported in all seminal documents and roadmaps of the European Battery Alliance EBA250, the Batteries Europe Partnership Association BEPA, Batteries2030+, and the Batteries Europe ETIP. The main goal is to make competitive the upcoming EU battery industry, to boost a sustainable and circular EU battery value chain. Over the past years the battery industry has been building partnerships along the value chain to exchange ideas on how to create sustainable and durable batteries to respond to a growing demand in EVs, electronics and energy storage. The aim of the project is to optimize the pouch cells by combining electrolyte systems with additives, to improve the electrochemical performance: electron conductivity, coulombic efficiency and cycling stability.

Development of doped vanadium oxide/graphene composites for ultra-performance batteries and supercapacitors by physical vapour deposition for sustainable and eco-friendly energy storage applications Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2019-4519 2020 - 2022

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU TEHNOLOGII CRIOGENICE SI IZOTOPICE - I.C.S.I. RAMNICU VALCEA (RO)

Affiliation:

Project website: https://infim.ro/en/project/development-of-doped-vanadium-oxide-graphene-composites-for-ultra-performance-batteries-and-supercapacitors-by-physical-vapour-deposition-for-sustainable-and-eco-friendly-energy-storage-applications/

Abstract:

Energy storage plays an important role in the modern world. One of the main trends that drive energy storage development is the rise of electrical devices (e.g. smart phones, smart watches, e-books, smart keys), internet of Things (IoT) in our daily life. Despite their great success, lithium ion batteries (LIBs) still need improvements in energy density, fast charge capabilities, cyclic durability and cost. LIBs are not fully safe in certain conditions and the commercial failure of Samsung Galaxy Note 7 in 2016 is an incontestable example. Extensive efforts have been devoted to either improve LiBs by replacing the commercial cathode (e.g. LiCoO2) or by designing new batteries without Lithium (Li) (e.g. Al, Mg, Na, Zn batteries) responding to the concern about the limited Li resource. New devices are required to be more sustainable and greener with respect to our environment. In this context, vanadium oxides, graphene and their related compounds are nowadays the most appealing materials for applications in energy harvesting.

VANABATSUP project intends to synthesize, test and develop advanced batteries or super capacitors based on doped vanadium oxide/graphene composites as sustainable, eco-friendly and ultra-performance storage resources. Despite their good promises, the commercialization of hybrids vanadium oxides-graphene based composites is hampered by various obstacles including fastidious synthesis methods, including the current use of graphene oxide which can lose its efficiency due to a tendency to aggregate. Recently, the project leader has demonstrated not only the possibility to synthesis few layers of graphene by physical vapor deposition (PVD) method, but also shown their applicability as electrochemical devices. A recent review underlined that those graphene layers have not yet been tested for energy storage application. Therefore, VANABATSUP intends to fill this gap and aims to propose alternative cathodes for energy storage application.

Performant nanocomposites for Li-ion battery anodes based on Sn, Si, Ge nanoalloys and Single Walled Carbon Nanohorns (SWCNHs)/Reduced Graphene Oxide (RGO) nanosheets Call name: P 2 - SP 2.1 - Proiect experimental - demonstrativ
PN-III-P2-2.1-PED-2019-4951 2020 - 2022

Role in this project:

Coordinating institution: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA

Project partners: INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU TEHNOLOGII CRIOGENICE SI IZOTOPICE - I.C.S.I. RAMNICU VALCEA (RO)

Affiliation: INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU TEHNOLOGII CRIOGENICE SI IZOTOPICE - I.C.S.I. RAMNICU VALCEA (RO)

Project website: http://llp.inflpr.ro/PED304_RO

Abstract:

This project proposal aims to obtain, characterize and test advanced nanostructured hybrid materials that can be used for anodes in modern Li-ion batteries that require both a high mass storage capacity (well over 300 mAh /g value characteristic to graphite), as well as to maintain this performance over hundreds of loading and unloading cycles. In order to achieve these performances we will combine the elements of the fourth principal group - Sn, Si, Ge (which have a very high capacity to incorporate Li) in the form of alloy nanoparticles obtained by laser pyrolysis or laser ablation with carbon nanostructures having a large specific surface - single-wall carbon nanohorns (SWCNHs) that are also synthesized by laser ablation and reduced graphene oxide nanosheets obtained from hydrophilic graphene oxide. Thus, the large volume variation characteristic of the lithium-delitiation process of Si, Sn and Ge can be amortized, also ensuring a good electrical conductivity and avoiding anode degradation. The SWCNHs-nanoparticles nanocomposites will be obtained either by superficial oxidation (hydrophilization) of the nanocorns followed by the suspension mixing with the nanoparticles and drying, or directly by simultaneous ablation of two neighboring targets, one of graphite and the other of metal /metalloid (Sn, Si , Ge in various proportions). The ternary composite will also be obtained in suspension by reducing the aqueous mixture suspended by SWCNHs-nanoparticles and graphene oxide chemically or by irradiating the liquid nitrogen dispersed mixture with the infrared laser. For the battery tests, the nanocomposites will be mixed with auxiliary materials, resulting in anodes that will be encapsulated in half-cells with a metallic Li cathode and LiPF6 electrolyte in a mixture of organic carbonates and will be subjected to series of charge-discharge cycles.

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects