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High energy lithium sulphur cells and batteries

High energy lithium sulphur cells and batteries

Objective

Lithium sulphur batteries (LSB) are viable candidate for commercialisation among all post Li-ion battery technologies due to their high theoretical energy density and cost effectiveness. Despites many efforts, there are remaining issues that need to be solved and this will provide final direction of LSB technological development. Some of technological aspects, like development of host matrices, interactions of host matrix with polysulphides and interactions between sulphur and electrolyte have been successfully developed within Eurolis project. Open porosity of the cathode, interactions between host matrices and polysulphides and proper solvatation of polysulphides turned to be important for complete utilisation of sulphur, however with this approach didn’t result long term cycling. Additionally we showed that effective separation between electrodes enables stable cycling with excellent coulombic efficiency. The remaining issues are mainly connected with a stability of lithium anode during cycling, with engineering of complete cell and with questions about LSB cells implementation into commercial products (ageing, safety, recycling, battery packs). Instability of lithium metal in most of conventional electrolytes and formation of dendrites due to uneven distribution of lithium upon the deposition cause several difficulties. Safety problems connected with dendrites and low coulombic efficiency with a constant increase of inner resistance due to electrolyte degradation represent main technological challenges. From this point of view, stabilisation of lithium metal will have an impact on safety issues. Stabilised interface layer is important from view of engineering of cathode composite and separator porosity since this is important parameter for electrolyte accommodation and volume expansion adjustment. Finally the mechanism of LSB ageing can determine the practical applicability of LSB in different applications.
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Coordinator

KEMIJSKI INSTITUT

Address

Hajdrihova 19
1000 Ljubljana

Slovenia

Activity type

Research Organisations

EU Contribution

€ 1 030 674

Participants (13)

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SAFT

France

EU Contribution

€ 888 887,75

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS

France

EU Contribution

€ 1 056 500

SOLVIONIC

France

EU Contribution

€ 298 500

CHALMERS TEKNISKA HOEGSKOLA AB

Sweden

EU Contribution

€ 632 559

FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Germany

EU Contribution

€ 680 625

PICOSUN OY

Finland

EU Contribution

€ 235 000

WESTFAELISCHE WILHELMS-UNIVERSITAET MUENSTER

Germany

EU Contribution

€ 751 510

MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV

Germany

EU Contribution

€ 173 000

FUNDACIO INSTITUT DE RECERCA DE L'ENERGIA DE CATALUNYA

Spain

EU Contribution

€ 703 750

ACCUREC-RECYCLING GMBH

Germany

EU Contribution

€ 597 406,25

TEL AVIV UNIVERSITY

Israel

EU Contribution

€ 679 625

INSTITUT NATIONAL DE L ENVIRONNEMENT ET DES RISQUES INERIS

France

EU Contribution

€ 117 662,50

PSA AUTOMOBILES SA

France

EU Contribution

€ 128 652,50

Project information

Grant agreement ID: 666221

Status

Closed project

  • Start date

    1 June 2015

  • End date

    31 May 2019

Funded under:

H2020-EU.2.1.3.2.

  • Overall budget:

    € 7 974 352

  • EU contribution

    € 7 974 352

Coordinated by:

KEMIJSKI INSTITUT

Slovenia