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Advanced European lithium sulphur cells for automotive applications

Objective

"Li-ion batteries become a reality in the future vehicles, although they do not fulfil completely the demands of consumers. In this respect batteries with higher energy density are required. Lithium technology utilizing sulphur as a cathode is one of the optimal choices since it offers the possibility of achieving high-energy, long-life storage batteries with a potential low price. At present, the practical use is faced with two major problems: (i) a low intrinsic conductivity of sulphur and polysulphides and (ii) loss of active materials due to solubility of the intermediate products in the commonly used electrolytes. The low intrinsic conductivity can be overcome using improved electronic wiring. The occurrence of soluble polysulphides is reflected as a loss of the active material during the cycling and additionally soluble polysulphides are responsible for overcharging problem which lowers the energy efficiency. With an aim to have stable capacity retention with a good cycling efficiency it is important to find a suitable electrochemical environment for the lithium – sulphur batteries. Possible approaches are using polysulphide reservoirs with modified surfaces in the highly mesoporous conductive matrix. Proposed system with high surface area should enable weak adsorption of polysulphides intermediates allowing reversible desorption. This way a full utilization of the active material without significant losses can be obtained. In order to understand the influence of surface area and surface modification, including interactions between electrolyte and sulphur based cathode composite we need to have a reliable characterization techniques. In this respect different electrochemical, spectroscopic and physical characterization (in-situ or ex-situ) techniques can provide us valuable information’s about the possible mechanism which can be used in planning of substrates for sulphur in the Li-S batteries."

Coordinator

KEMIJSKI INSTITUT

Address

Hajdrihova 19
1000 Ljubljana

Slovenia

Activity type

Research Organisations

EU Contribution

€ 632 334

Administrative Contact

Katja Možina (Ms.)

Participants (10)

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CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS

France

EU Contribution

€ 826 492

MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV

Germany

EU Contribution

€ 179 833

CHALMERS TEKNISKA HOEGSKOLA AB

Sweden

EU Contribution

€ 147 127

ELETTRA - SINCROTRONE TRIESTE SCPA

Italy

EU Contribution

€ 169 440

CENTER ODLICNOSTI NIZKOOGLJICNE TEHNOLOGIJE ZAVOD

Slovenia

EU Contribution

€ 120 600

RENAULT SAS

France

EU Contribution

€ 120 978

SOLVIONIC

France

EU Contribution

€ 218 388

FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Germany

EU Contribution

€ 182 150

SAFT

France

EU Contribution

€ 143 305

VOLVO TECHNOLOGY AB

Sweden

EU Contribution

€ 58 437

Project information

Grant agreement ID: 314515

Status

Closed project

  • Start date

    1 October 2012

  • End date

    30 September 2016

Funded under:

FP7-NMP

  • Overall budget:

    € 3 904 174,40

  • EU contribution

    € 2 799 084

Coordinated by:

KEMIJSKI INSTITUT

Slovenia