Realisation of structural battery composite materials
Paper in proceeding, 2015

This paper introduces the concept of structural battery composite materials and their possible devices and the rationale for developing them. The paper presents an overview of the research performed in Sweden on a novel structural battery composite material. The research areas addressed include: carbon fibre electrodes, structural separators, multifunctional matrix materials, device architectures and material functionalization. Material characterization, fabrication and validation are also discussed. The paper focuses on a patented battery composite material technology. Here, carbon fibres are employed as combined negative battery electrodes and reinforcement, coated with a solid polymer electrolyte working simultaneously as electrolyte and separator with ability to transfer mechanical loads. The coated fibres are distributed in a conductive positive cathode material on an aluminium electron collector film. Efficient Li-ion transport between the electrodes is achieved by the solid polymer electrolyte coating being only a few hundred nanometres thick. Finally some outstanding scientific and engineering challenges are discussed. Such challenges, calling for further research are related to manufacture, development of new solid polymer electrolytes for improved multifunctionality and the lack of material models.

Author

Leif Asp

Swerea

Chalmers, Applied Mechanics, Material and Computational Mechanics

Simon Leijonmarck

Swerea

Royal Institute of Technology (KTH)

Tony Carlson

Swerea

Göran Lindbergh

Royal Institute of Technology (KTH)

ICCM International Conferences on Composite Materials

Areas of Advance

Energy

Materials Science

Subject Categories

Composite Science and Engineering

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1/3/2024 9