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Novel Ionic Conductors

English title Novel Ionic Conductors
Applicant Remhof Arndt
Number 160749
Funding scheme Sinergia
Research institution Mobilität, Energie und Umwelt Empa
Institution of higher education Swiss Federal Laboratories for Materials Science and Technology - EMPA
Main discipline Material Sciences
Start/End 01.12.2015 - 31.05.2019
Approved amount 1'580'233.00
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All Disciplines (2)

Discipline
Material Sciences
Inorganic Chemistry

Keywords (5)

Energy Conversion; Energy Storage; Ion Conductivity; Solid state battery; Nanotechnology

Lay Summary (German)

Lead
Lithium-Ionen-Batterien sind effiziente und leichte elektrochemische Energiespeicher. Sie haben unter anderem den grossen Erfolg tragbarer Elektronik ermöglicht. Der wachsende Markt der Elektromobilität fordert höhere Energiedichten und bringt neue Herausforderungen im Bereich der Sicherheit. Festkörperbatterien umgehen Sicherheitsprobleme, die konventionelle Batterien mit flüssigen Elektrolyten mit sich bringen. Eine Steigerung der Energiedichte lässt sich durch mehrwertige Ionen, welche mehrere Elektronen pro Ion tragen, erreichen. In den letzten Jahren wurde Lithium und Natrium- Ionenleitung in leichten, Bor-basierten Feststoffen entdeckt, welche die Grundlage für zukünftige Festkörperbatterien sein könnten.
Lay summary

Inhalt und Ziel des Forschungsprojekts

Das zentrale Ziel des Projekts ist die Entwicklung  neuartiger Borwasserstoffverbindungen als Elektrolyt für eine zukünftige Festkörperbatterie. Dazu werden wir mit Hilfe von Additiven und Methoden der Nanotechnologie neue Ionenleiter entwickeln. Besondere Aufmerksamkeit widmen wir dabei dem Magnesium als zweiwertigem Element.  Folgende wissenschaftliche Fragen stehen im Mittelpunkt: (i) wie erreichen wir die notwendige (elektro)chemische und thermodynamische Stabilität? (ii) welcher Transportmechanismus liegt der Ionenleitung in den Borwasserstoffen zu Grunde und (iii)  welche Elektrodenmaterialien sind mit den Ionenleitern kompatibel?

 

Wissenschaftlicher und gesellschaftlicher Kontext des Forschungsprojekts

Unsere Arbeit wird zur Entwicklung einer neuen Batterietechnologie jenseits der etablierten Lithium-Ionen Batterien beitragen. Verlässliche und kompakte Energiespeicher mit hoher Energie- und Leistungsdichte sind die Voraussetzung von Elektromobilität und werden zur Lebensqualität zukünftiger Generationen beitragen.

Direct link to Lay Summary Last update: 07.10.2015

Responsible applicant and co-applicants

Employees

Publications

Publication
Electrochemical oxidative stability of hydroborate-based solid-state electrolytes
Asakura Ryo, Düchene Leo, Kühnel Ruben-Simon, Remhof Arndt, Hagemann Hans, Battaglia Corsin (2019), Electrochemical oxidative stability of hydroborate-based solid-state electrolytes, in ACS Applied Energy Materials, 2, 6924-6930.
Pressure-induced phase transitions in Na2B12H12, structural investigation on a candidate for solid- state electrolyte
Moury Romain Moury, Łodziana Zbigniew, Remhof Arndt, Duchene Leo, Roedern Elsa, Gigante Angelina, Hagemann Hans (2019), Pressure-induced phase transitions in Na2B12H12, structural investigation on a candidate for solid- state electrolyte, in Acta Crystallographica B, 75, 406-413.
Ionic Conduction Mechanism in the Na 2 (B 12 H 12 ) 0.5 (B 10 H 10 ) 0.5closo -Borate Solid-State Electrolyte: Interplay of Disorder and Ion–Ion Interactions
Duchêne Léo, Lunghammer Sarah, Burankova Tatsiana, Liao Wei-Chih, Embs Jan Peter, Copéret Christophe, Wilkening H. Martin R., Remhof Arndt, Hagemann Hans, Battaglia Corsin (2019), Ionic Conduction Mechanism in the Na 2 (B 12 H 12 ) 0.5 (B 10 H 10 ) 0.5closo -Borate Solid-State Electrolyte: Interplay of Disorder and Ion–Ion Interactions, in Chemistry of Materials, 31(9), 3449-3460.
Dynamics of the Coordination Complexes in a Solid-State Mg Electrolyte
Burankova Tatsiana, Roedern Elsa, Maniadaki Aristea E., Hagemann Hans, Rentsch Daniel, Łodziana Zbigniew, Battaglia Corsin, Remhof Arndt, Embs Jan P. (2018), Dynamics of the Coordination Complexes in a Solid-State Mg Electrolyte, in The Journal of Physical Chemistry Letters, 6450-6455.
Separators and electrolytes for rechargeable batteries: Fundamentals and perspectives
Nestler Tina, Roedern Elsa, Uvarov Nikolai F., Hanzig Juliane, Antonio Elia Giuseppe, de Vivanco Mateo (2018), Separators and electrolytes for rechargeable batteries: Fundamentals and perspectives, in Meyer Dirk (ed.), De Gruyter , Berlin, Germany, 0(0), 1-29.
Theoretical description of alkali metal closo -boranes – towards the crystal structure of MgB 12 H 12
Maniadaki Aristea E., Łodziana Zbigniew (2018), Theoretical description of alkali metal closo -boranes – towards the crystal structure of MgB 12 H 12, in Physical Chemistry Chemical Physics, 20(48), 30140-30149.
Direct Rehydrogenation of LiBH4 from H-Deficient Li2B12H12-x
Yan Yigang, Wang Hui, Zhu Min, Cai Waitong, Rentsch Daniel, Remhof Arndt (2018), Direct Rehydrogenation of LiBH4 from H-Deficient Li2B12H12-x, in Crystals, 131.
A stable 3 V all-solid-state sodium–ion battery based on a closo-borate electrolyte
Duchêne Leo, Kuhnel Ruben-Simon, Stilp Evelyn, Cuervo Reyes Eduardo, Remhof Arndt, Hagemann Hans, Battaglia Corsin (2017), A stable 3 V all-solid-state sodium–ion battery based on a closo-borate electrolyte, in Energy and Environmental Science, 10, 2609.
Synthesis, stability and Li-ion mobility of nanoconfined Li2B12H12
Yan Yigang, Rentsch Daniel, Battaglia Corsin, Remhof Arndt (2017), Synthesis, stability and Li-ion mobility of nanoconfined Li2B12H12, in Dalton Transactions, 46, 12434.
Reorientational Hydrogen Dynamics in Complex Hydrides With Enhanced Li + Conduction
Burankova Tatsiana, Dûchene Léo, Lodziana Zbigniew, Frick Bernhard, Kühnel Ruben-Simon, Hagemann Hans, Remhof Arndt, Embs Jan Peter (2017), Reorientational Hydrogen Dynamics in Complex Hydrides With Enhanced Li + Conduction, in Journal of Physical Chemistry C, 121(33), 17693-17702.
A Lithium Amide-Borohydride Solid-State Electrolyte with Lithium-Ion Conductivities Comparable to Liquid Electrolytes
Yan Yigang, Kühnel Ruben-Simon, Remhof Arndt, Duchêne Leo, Cuevo Reyes Eduardo, Remtsch Daniel, Lodziana Zbigniew, Battaglia Corsin (2017), A Lithium Amide-Borohydride Solid-State Electrolyte with Lithium-Ion Conductivities Comparable to Liquid Electrolytes, in Advanced Energy Materials, 1700294.
Modified Anion Packing of Na2B12H12 in Close to Room Temperature Superionic Conductors.
Sadikin Yolanda, Schouwink Pascal, Brighi Matteo, Łodziana Zbigniew, Černý Radovan (2017), Modified Anion Packing of Na2B12H12 in Close to Room Temperature Superionic Conductors., in Inorganic chemistry, 56(9), 5006-5016.
A highly stable sodium solid-state electrolyte based on a dodeca/deca-borate equimolar mixture.
Duchêne Léo, Kühnel Ruben-Simon, Rentsch Daniel, Remhof Arndt, Hagemann Hans, Battaglia Corsin (2017), A highly stable sodium solid-state electrolyte based on a dodeca/deca-borate equimolar mixture., in Chemical communications (Cambridge, England), (30), 4195-4198.
Magnesium Ethylenediamine Borohydride as Solid-State Electrolyte for Magnesium Batteries.
Roedern Elsa, Kühnel Ruben-Simon, Remhof Arndt, Battaglia Corsin (2017), Magnesium Ethylenediamine Borohydride as Solid-State Electrolyte for Magnesium Batteries., in Scientific reports, 7, 46189-46189.
Confinement Effects for Lithium Borohydride: Comparing Silica and Carbon Scaffolds.
Suwarno, Ngene Peter, Nale Angeloclaudio, Eggenhuisen Tamara M, Oschatz Martin, Embs Jan Peter, Remhof Arndt, de Jongh Petra E (2017), Confinement Effects for Lithium Borohydride: Comparing Silica and Carbon Scaffolds., in The journal of physical chemistry. C, Nanomaterials and interfaces, (8), 4197-4205.
An alternative approach to the synthesis of NaB3H8 and Na2B12H12 for solid electrolyte applications
Moury Romain, Gigante Angelina, Hagemann Hans (2017), An alternative approach to the synthesis of NaB3H8 and Na2B12H12 for solid electrolyte applications, in International Journal of hydrogen energy, 42, 22417-22421.
Anion Disorder in K3BH4B12H12 and Its Effect on Cation Mobility
Sadikin Yolanda, Skoryunov Roman Y, Babanova Olga B, Soloninin Alexei V, Lodziana Zbigniew, BrighiMatteo, Skripov Alexander V, Cerny Radovan (2017), Anion Disorder in K3BH4B12H12 and Its Effect on Cation Mobility, in The Journal of Physical Chemistry C, 121(10), 5503-5514.
A highly stable sodium solid-state electrolyte base d on a dodeca/deca-borate equimolar mixture
Duchene Leo, Kühnel Ruben Simon, Rentsch Daniel, Remhof Arndt, Hagemann Hans, Battaglia Corsin (2017), A highly stable sodium solid-state electrolyte base d on a dodeca/deca-borate equimolar mixture, in Chemical Communications, 53, 4195.
Confinement Effects for Lithium Borohydride: Comparing Silica and Carbon Scaffolds
Suwarno, Ngene Peter, Embs Jan Peter, Remhof Arndt, de Jongh Petra et al. (2017), Confinement Effects for Lithium Borohydride: Comparing Silica and Carbon Scaffolds, in Journal of Physical Chemistry C, 121, 4197-4205.
Magnesium Ethylenediamine Borohydride as Solid-State Electrolyte for Magnesium Batteries
Elsa Roedern, Ruben-Simon Kühnel, Arndt Remhof, Corsin Battaglia (2017), Magnesium Ethylenediamine Borohydride as Solid-State Electrolyte for Magnesium Batteries, in Scientific Reports, 7, 46189.
Complex metal borohydrides: multifunctional materials for energy storage and conversion.
Mohtadi Rana, Remhof Arndt, Jena Puru (2016), Complex metal borohydrides: multifunctional materials for energy storage and conversion., in Journal of physics. Condensed matter : an Institute of Physics journal, 28(35), 353001-353001.
Complex metal borohydrides: multifunctional materials for energy storage and conversion
Mohtadi Rana, Remhof Arndt, Jena Puru (2016), Complex metal borohydrides: multifunctional materials for energy storage and conversion, in Journal of Physics: Condensed Matter, 28, 353001.
A Lithium Amide-Borohydride Solid-State Electrolyte with Lithium-Ion Conductivities Comparable to Liquid Electrolytes
Yan Yigang, Kühnel Ruben-Simon, Remhof Arndt, Duchêne Léo, Cuervo Reyes Eduardo, Rentsch Daniel, Łodziana Zbigniew, Battaglia Corsin, A Lithium Amide-Borohydride Solid-State Electrolyte with Lithium-Ion Conductivities Comparable to Liquid Electrolytes, in Advanced Energy Materials, 1700294.

Collaboration

Group / person Country
Types of collaboration
Prof. P. E. de Jongh / Utrecht University Netherlands (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Exchange of personnel
Prof. Nuria Lopez, ICIQ Tarragona Spain (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
Dr. Rana Mohtadi, Toyota Research Institute, USA United States of America (North America)
- Publication
Dr. Radovan Cerny, University of Geneva Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Prof. Yoon Seok Jung, Hanyang University, Seoul Korean Republic (South Korea) (Asia)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Exchange of personnel
Prof. Y. Filinchuk / Université catholique de Louvain Belgium (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
Gordon Research Conference on Hydrogen-Metal Systems Poster Synthesis, Structure and Sodium-ion Conductivity of NaB11H14 and NaB11H14-Na2B12H12 mixtures 30.06.2019 Castelldefels, Spain Payandeh Gharibdoust Seyedhosein;
EMRS Spring Meeting 2019 Poster A 3 V stable closo-borate electrolyte for all-solid-state sodium–ion batteries 27.05.2019 Nice, France Remhof Arndt; Duchêne Léo;
EMRS Spring Meeting 2019 Talk given at a conference Elucidating the complex ionic conductivity behaviour of the Na2(B10H10)0.5(B12H12)0.5 electrolyte 27.05.2019 Nice, France Duchêne Léo;
EMRS Spring Meeting 2019 Talk given at a conference Opportunities and challenges for closo-borate-based electrolytes for all-solid-state batteries 27.05.2019 Nice, France Remhof Arndt;
ACS National Spring Meeting 2019 Talk given at a conference Metal closo-borates as solid-state electrolytes 31.03.2019 Orlando, FL, United States of America Lodziana Zbigniew; Remhof Arndt; Hagemann Hans; Moury Romain;
Third Bunsen Colloquium on Solid-State Batteries Poster A 3 V all-solid-state battery based on a closo-borate electrolyte 14.11.2018 Frankfurt am Main, Germany Remhof Arndt;
The 16th International Symposium on Metal-Hydrogen Systems (MH2018) Talk given at a conference Solid state electrolytes with transition metals closo-borates 28.10.2018 Guangzhou, China Lodziana Zbigniew;
The 16th International Symposium on Metal-Hydrogen Systems (MH2018) Poster A straightforward and scalable synthesis of Borohydride clusters for electrolyte applications 28.10.2018 Guangzhou, China Hagemann Hans; Moury Romain;
The 16th International Symposium on Metal-Hydrogen Systems (MH2018) Talk given at a conference High pressure phase transitions for Na2B12H12 a solid electrolyte material 28.10.2018 Guangzhou, China Moury Romain;
2nd International Symposium on Magnesium Batteries Talk given at a conference Magnesium solid electrolytes based on coordination complexes of magnesium borohydride 27.09.2018 Ulm, Germany Remhof Arndt; Roedern Elsa;
2018 MRS Spring Meeting & Exhibit Talk given at a conference A 3 V stable closo-borate electrolyte for all-solid-state sodium-ion batteries 02.04.2018 Phoenix, United States of America Duchêne Léo;
Nexus of Food, Energy & Water, 255th ACS National Meeting & exposition Poster Synthesis and characterization of B3H8-, B10H102- and B12H122- in various environments in the context of hydrogen storage and battery applications 17.03.2018 New Orleans, United States of America Hagemann Hans; Remhof Arndt;
Nexus of Food, Energy & Water, 255th ACS National Meeting & Exposition Talk given at a conference Borohydride-based solid-state electrolytes with liquid-like sodium and lithium conductivity at room temperature 17.03.2018 New Orleans, United States of America Remhof Arndt;
Materialwissenschaftliches Kolloquium Individual talk Borohydride-based electrolytes for all-solid-state batteries 26.02.2018 TU Darmstadt, Germany Remhof Arndt;
GSFMT autumn seminar 2017 “Nanomaterials for modern technology” Talk given at a conference Quasielastic Neutron Scattering for the Investigation of Stochastic Motion in Solids and Liquids 15.11.2017 Pühajärve, Estonia Burankova Tatsiana;
Center of Excellence “Emerging orders in quantum and nanomaterials” (EQUITANT) Talk given at a conference Quasielastic Neutron Scattering for the Investigation of Stochastic Motion in Solids and Liquids 14.11.2017 Tallin, Estonia Burankova Tatsiana;
EMN, Meeting on Computation and Theory2017 Talk given at a conference DFT insight into new solid state ionic conductors 06.11.2017 Dubai, United Arab Emirates Lodziana Zbigniew;
E-MRS 2017 - Fall Meeting Talk given at a conference Theoretical analysis of alkali metal and magnesium closo-boranes 21.09.2017 Warsaw, Poland Lodziana Zbigniew; Maniadaki Aristea;
E-MRS fall meeting, Multifunctionality of metal hydrides for energy storage Talk given at a conference Theoretical insight into ionic conductivity in metal-closo-boranes 18.09.2017 Warsaw, Poland Lodziana Zbigniew; Hagemann Hans; Embs Jan Peter; Maniadaki Aristea; Remhof Arndt;
36th Dynamical properties of Solids Talk given at a conference Dynamical Properties of closo-Boranes 28.08.2017 Krakow, Poland Maniadaki Aristea; Lodziana Zbigniew;
Gordon Research Conference, Hydrogen – metal systems Poster Lithium and sodium mobility within closo-dodeca-borane compounds 16.07.2017 Easton, MA, United States of America Lodziana Zbigniew;
Gordon Research Conference Hydrogen-Metals Interactions: Making the Hydrogen Economy Work - New Developments and Recent Applications Talk given at a conference A Cheap Approach to the Synthesis of Borohydride Clusters for Electrolyte Applications 16.07.2017 Stonehill College, Easton, MA , United States of America Moury Romain; Hagemann Hans;
Gordon Research Seminar New Perspectives on Hydrogen-Metal Interactions and Applications Talk given at a conference Closo-Boranes and Carboranes, Alternative Approaches for Their Synthesis and the Stabilization of the Disordered Polymorphs 15.07.2017 Stonehill College, Easton, MA , United States of America Hagemann Hans; Moury Romain;
The 2nd International Workshop AdvPhotoCat-E 2017 Talk given at a conference New class of ionic conductors based on metal-boron-hydrogen compounds 14.07.2017 Heraklion, Greece Lodziana Zbigniew;
International Conference on Neutron Scattering (ICNS) 2017 Talk given at a conference Hydrogen Dynamics in Novel Solid-State Li Conductors 09.07.2017 Daejeon, Korean Republic (South Korea) Burankova Tatsiana;
Joint University of Oslo - IFE seminar Individual talk Borohydride based solid-state electrolytes 29.06.2017 Institut for Energy Technology (IFE), Kjeller, Norway, Norway Remhof Arndt;
XXXVI Reunion Bienal De La Real Sociedad Espanola de Quimica Talk given at a conference New class of ionic conductors based on metal-boron-hydrogen compounds 25.06.2017 Sitges, Spain Lodziana Zbigniew;
International Conference on Solid State Ionics Talk given at a conference An all-solid-state half-cell battery with lithium amide-borohydride solid-state electrolyte 18.06.2017 Padova, Italy Remhof Arndt;
International Conference on Solid State Ionics Talk given at a conference A highly stable closo - borate solid - state electrolyte for all - solid - state sodium - ion batteries 18.06.2017 Padova, Italy Duchêne Léo;
International Conference on Solid State Ionics Talk given at a conference Magnesium Borohydride Complexes as Solid - State Electrolytes for Magnesium Batteries 18.06.2017 Padova, Italy Roedern Elsa;
231st ECS Meeting Talk given at a conference Magnesium Ethylenediamine Borohydride as Solid-State Electrolyte for Magnesium Batteries 28.05.2017 New Orleans, United States of America Roedern Elsa;
eMRS Spring Meeting 2017 Talk given at a conference Novel complex hydrides as stable, room temperature solid-state electrolytes 22.05.2017 Stasbourg, France Remhof Arndt;
ICIQ invited seminar Individual talk From hydrogen storage to ionic conductors: fascinating properties of metal-boron-hydrogen compounds 18.11.2016 Institute of Chemical Research of Catalonia, Spain Hagemann Hans; Remhof Arndt; Embs Jan Peter; Lodziana Zbigniew;
Crystallographic Colloquium Individual talk Novel Ionic Conductors 15.11.2016 University of Freiburg, Faculty of Environment and Natural Resources, Germany Remhof Arndt;
Chemistry Conferences, Seminar Individual talk Fascinating properties of metal-boron-hydrogen systems : from hydrogen storage to ionic conductivity 04.10.2016 University of Geneva, Switzerland Lodziana Zbigniew;
eMRS Fall meeting 2016 Talk given at a conference Solid state electrolytes with Li ion conductivities near liquid electrolytes 19.09.2016 Warsaw University of Technology, Poland Roedern Elsa; Kühnel Ruben-Simon; Lodziana Zbigniew; Remhof Arndt;
iNANO Destinguished Lecture Individual talk Novel Ionic Conductors 02.09.2016 Aarhus, Interdisciplinary Nanoscience Center, Aarhus University, Denmark Kühnel Ruben-Simon; Roedern Elsa; Lodziana Zbigniew; Remhof Arndt;
MH2016-15th International symposium on Metal-Hydrogen Systems Talk given at a conference “Ionic Conductivity of Metal Dodecaborates – Theoretical Insight” 07.08.2016 Interlaken, Switzerland Lodziana Zbigniew;
MH2016-15th International symposium on Metal-Hydrogen Systems Talk given at a conference From NaBH4 to higher bornae clusters, a cheap synthetic path for solid electrolyte 07.08.2016 Interlaken, Switzerland Moury Romain; Hagemann Hans;
MH2016 - 15th International Symposium on Metal-Hydrogen Systems Talk given at a conference Metal Amide Borohydride Complexes as Solid-State Ionic Conductors for Magnesium Ion Batteries 08.07.2016 Interlaken, Switzerland Roedern Elsa;
International Meeting on Lithium Batteries (IMLB) Poster Lithium Complex Hydride Solid State Electrolytes with Conventional Liquid Electrolyte-like Conductivity 19.06.2016 Chicago, IL, United States of America Kühnel Ruben-Simon;
Hydrides as Energy Materials (HydEM2016) Poster "Ionic conductivity of dodecaborates – Theoretical insight” 01.06.2016 Aarhus University, Denmark Miletic Goran; Hagemann Hans; Embs Jan Peter; Lodziana Zbigniew; Remhof Arndt;
Hydrides as Energy Materials (HydEM2016) Talk given at a conference Complex hydrides for energy storage and conversion 01.06.2016 Aarhus, Aarhus University, Denmark Kühnel Ruben-Simon; Roedern Elsa; Hagemann Hans; Lodziana Zbigniew; Remhof Arndt;


Self-organised

Title Date Place
1st International Symposium on Solid-State Batteries 28.05.2018 Dübendorf, Switzerland

Knowledge transfer events

Active participation

Title Type of contribution Date Place Persons involved
Fachführung, SSES Regionalgruppe Aargau Talk 31.03.2017 Dübendorf, Empa, Switzerland Remhof Arndt;


Communication with the public

Communication Title Media Place Year
Media relations: print media, online media Für eine neue Energiezukunft braucht es neue Batterien St. Galler Tagblatt German-speaking Switzerland 2019
Media relations: print media, online media Feststoffbatterie Elektroautomobil International 2018
Media relations: print media, online media A revolution in lithium-ion batteries is becoming more realistic Eurekalert International 2017
Media relations: print media, online media Des Suisses créent la batterie 100% sûre Le Matin Western Switzerland 2017
Media relations: radio, television Einstein SRF1 German-speaking Switzerland 2017
Media relations: print media, online media Fest statt flüssig: Forscher stellen sicheren Akku-Prototyp vor Aargauer Zeitung German-speaking Switzerland 2017
Media relations: print media, online media Fest statt flüssig: Forscher stellten sicheren Akku-Prototyp vor Der Standard International 2017
New media (web, blogs, podcasts, news feeds etc.) Festkörperakkus: Forscher suchen leistungsfähigere und sicherere Batterien elektroauto-news.net International 2017
Media relations: print media, online media Festkörperbatterie läutet völlig neue Akku-Ära ein Sonnenseite German-speaking Switzerland 2017
Media relations: print media, online media Frische Zellen-Kuren Automobil Produktion International 2017
Media relations: print media, online media Hattrick für bessere, nachhaltige Batterien NZZ German-speaking Switzerland 2017
Media relations: radio, television Le sodium-magnésium comme alternative au lithium-ion RTS 1, CQFD Western Switzerland 2017
Media relations: print media, online media Les batteries du futur ne manqueront pas de sel Le Temps Western Switzerland 2017
Media relations: print media, online media Schweizer Forscher erfinden sichere Batterien Blick German-speaking Switzerland 2017
Media relations: print media, online media Schweizer tüfteln an sicherem Handy-Akku 20 Minuten German-speaking Switzerland 2017
Media relations: print media, online media Solid-state electrolyte with lithium-ion conductivities comparable to liquid electrolytes Phys.Org International 2017
New media (web, blogs, podcasts, news feeds etc.) Swiss researchers develop 3V solid state sodium battery Smart2zero.com International 2017
Media relations: print media, online media Wie die Batterie der Zukunft aussieht Süddeutsche Zeitung International 2017

Awards

Title Year
"Invention of the Year", awarded by the technology transfer hub of the University of Geneva - Unitec to the patent "METHOD FOR THE PREPARATION AND PURIFICATION OF BORATE SALTS" filed 2018 by L. Duchene, R. Moury, R.-S. Kühnel, A. Remhof, H. Hagemann, and C. Battaglia 2019
2019 Chemistry Travel Award 2019
2019 Chemistry Travel Award 2019
Battery Division Student Research Award of the Electrochemical Society 2019
EMRS Graduate student award 2019 2019
Solid-State Ionics 2019 Travel Grant 2019
Best Poster Award, The 16th International Symposium on Metal-Hydrogen Systems (MH2018), Guangzhou, China 2018
Korean - Swiss Young Researchers Exchange Program 2018
Poster Prize for most innovative research, Hydrides as Energy Materials - HydEM 2016, Aarhus University. 2016

Patents

Title Date Number Inventor Owner
"METHOD FOR THE PREPARATION AND PURIFICATION OF BORATE SALTS" 08.11.2018 EP18205162

Associated projects

Number Title Start Funding scheme
156681 Combined experimental and theoretical studies on potential hydrogen storage materials and on luminescent materials 01.02.2015 Project funding (Div. I-III)
182494 Fundamental studies of boron hydrogen compounds and luminescence studies on energy transfer in rare earth containing phosphors 01.03.2019 Project funding (Div. I-III)
169033 Fundamental studies of boron hydrogen compounds from BH4- to B12H122- and derived compounds and luminescence studies on energy transfer in rare earth containing phosphors 01.03.2017 Project funding (Div. I-III)

Abstract

Lithium ion batteries enabled the success of portable electronics and dominate the global battery market. The demand for high energy density batteries will further increase with the market trend towards electric vehicles and grid leveling applications. Further improvements in energy density and reduction in cost are key to enable a large scale deployment of batteries for these applications. At high energy densities and large scale, absolute operational safety becomes a stringent requirement. Batteries using a solid state electrolyte instead of the conventional liquid electrolytes have a great potential to overcome the well-known challenges of traditional lithium ion batteries. However, the development of next-generation solid-state electrolytes with high ionic conductivity nearing the conductivity of liquid electrolytes represents a major scientific challenge. Recent years witnessed promising discoveries of novel solid state ionic conductors. Fast sodium ion conductivity was reported in Na2B12H12, a compound containing large dodecahydroborates. This unexpected discovery revealed a new class of superionic conductors, for which the origin of conductivity is yet to be revealed but opens new possibilities for high conductivity. This project aims at developing novel superionic conductors based on closo-borates M(BnHn) towards the application in high energy density batteries. Consisting entirely of low weight elements, closo-borates are ideal for applications that require high gravimetric energy density. We emphasize especially on sodium and magnesium conduction promising lower cost than lithium and in the case of divalent magnesium also higher energy densities. Nanoconfinement and ion substitution will be explored as means to alter the functional materials properties and to stabilize disordered ion conducting phases at room temperature. The inert matrix providing nanoconfinement additionally supports the mechanical and chemical stability of the electrolyte preventing degradation during electrochemical cycling.The project will address the following scientific questions related to this new class of ionic conductors: (i) their thermodynamic/electrochemical stability; (ii) the origin of the ionic conductivity; (iii) development of synthesis methods for the bulk and nanoconfined state; (iv) tuning their properties by ionic substitution. The consortium unites four internationally renowned research groups consisting of Empa, PSI, the University of Geneva, and the Institute of Nuclear Science of the Polish Academy of Sciences in Cracow providing the unique opportunity for forging strong synergies between the researchers that pioneered the field of borates and experts in battery research through the combination of expertise in electrochemistry, solid state chemistry and synthesis, thermodynamics and kinetic, spectroscopy, transport measurements and theoretical modeling.
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