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  • ICA C "Energy Storage and Conversion"
Logo Sustainable and Energy Efficient Aviation of TU Braunschweig
C2.2 - Structural energy storage focussing on battery cells with load-bearing properties
  • ICA C "Energy Storage and Conversion"
    • C1.1 - Design methods for aircraft energy supply systems
    • C2.2 - Integration Strategies for Power Composites in Aircraft Structures
    • C2.3 - Solid-state lithium-sulfur batteries with enhanced stability and structural integration for aviation
    • C3.1 - Functional 3D design and experimental validation of shape-adaptive fan blading
    • C3.3 - Synthetic Fuel Combustion for Aviation Application
    • C3.5 - Numerical investigations of synthetic fuel flames in aviation conditions
    • C3.6 - AICODE: Artificial Intelligence-enhanced Compressor Design
    • C4.1 - Reliable and Robust Electrical Power Conversion for Electrified Aircraft Propulsion Systems
    • C4.2 - Reliable, Efficient and Lightweight Electric Propulsion Drive Systems with Distributed Energy Supply
    • C5.1 - Total Thermal Management Design and Optimization
    • C5.2 - AER-X: Airbone Energy Recovery via vapor eXpansion
    • C5.3 - Cryogenic hydrogen exergy utilisation: Less heat rejection to ambient and more useable energy for propulsion
    • C6.1 - Data-driven understanding of aviation PEM fuel cells under reliability aspects
    • C6.2 - Design and (nano)engineering of PEMFC cathode catalyst layers to boost the efficiency and life-time under aviation conditions
    • C6.3 - DEFCA: Design-space evaluation of the air-, heat- and power-management of fuel cells for aviation
    • C6.4 - Robust and High-Density Fuel-Cell Systems
    • JRG-C3 - Fuel Cells for Aviation
    • C1.1 - Design methodology for aircraft energy supply systems
    • C2.1 - Fundamentals of ElectroFuel Synthesis for Aviation
    • C2.2 - Structural energy storage focussing on battery cells with load-bearing properties
    • C2.3 - Advanced lithium-sulfur battery concepts for aviation
    • C3.1: Multidisciplinary design of shape-adaptive compressor blading
    • C3.2: Adaptive High-Speed Compressors with optimized stage matching for flexible operation
    • C3.3: Synthetic Fuel Combustion for Aviation Application
    • C4.1 - Electric Propulsion Drive Concepts for Future Electrified Aircraft
    • C4.2 - Power Supply System for All Electric Aircraft
    • ⯇ back to research

C2.2 - Structural energy storage focussing on battery cells with load-bearing properties

Structural energy storage focussing on battery cells with load bearing properties

One of the critical challenges for the electrification of aviation is the storage of the necessary electrical energy. The use of conventional batteries would introduce considerable additional masses and volumes into the overall aircraft system at the expense of performance. The project "Structural energy storage focussing on battery cells with load bearing properties" investigates the small-scale integration of battery materials into the fibre composites used in aircraft construction. For this purpose, the resin used in fibre composites will be replaced by battery materials to enable the storage of electrical energy while retaining the mechanical properties.

Funtional principle

The schematic structure of an energy-storing fiber composite structure is shown in the figure below. The matrix polymer normally used in fibre composites is replaced here by the materials of a battery. Carbon fibres impregnated with active material, a solid state electrolyte and other additives form the cathode. In addition to their load-bearing properties, the carbon fibres used can also act as current collector. Sulfur is a suitable active material for this type of battery due to its high gravimetric energy density and the high carbon content already present in the carbon fibers. The separator of the battery consists of electrically insulating glass fibers which are impregnated with a solid-state electrolyte. Pure metallic lithium is used as the anode.

 

Fibre reinforced composite battery

Research areas

  • Development of novel solid electrolytes with improved mechanical and electrochemical properties
  • Establishment of process routes for impregnation and infiltration of glass fibres with a solid state electrolyte
  • Establishment of process routes for the production of structure-integrated cathodes and investigation of process-structure-property relationships
  • Benchmarking of mass and volume savings through small-scale integration

Details of the project

Members

Institute for Particle Technology, TU Braunschweig

Prof. Dr.-Ing. Arno Kwade

M. Sc. Daniel Vogt

 

Institute of Composite Structures and Adaptive Systems, German Aerospace Center (DLR)

Prof. Dr.-Ing. Martin Wiedemann

Prof. Dr.-Ing. Peter Wierach

Dipl.- Ing. Vasan Iyer

Dipl.-Ing. Jan Petersen

 

 

 

Contact

Project lead

Prof. Dr.-Ing. Arno Kwade

Institute for Particle Technology

+49 531-391-9610

 

Organisation

Institute for Particle Technology

Technische Universität Braunschweig
Volkmaroder Straße 5
D-38104 Braunschweig

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Contact information

Cluster of Excellence SE²A –
Sustainable and Energy-Efficient Aviation
Technische Universität Braunschweig
Hermann-Blenk-Str. 42
38108 Braunschweig

se2a(at)tu-braunschweig.de
+49 531 391 66661

 

 

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