A structural battery and its multifunctional performance
Journal article, 2021

Engineering materials that can store electrical energy in structural load paths can revolutionize lightweight design across transport modes. Stiff and strong batteries that use solid-state electrolytes and resilient electrodes and separators are generally lacking. Herein, a structural battery composite with unprecedented multifunctional performance is demonstrated, featuring an energy density of 24 Wh kg-1 and an elastic modulus of 25 GPa and tensile strength exceeding 300 MPa. The structural battery is made from multifunctional constituents, where reinforcing carbon fibers (CFs) act as electrode and current collector. A structural electrolyte is used for load transfer and ion transport and a glass fiber fabric separates the CF electrode from an aluminum foil-supported lithium–iron–phosphate positive electrode. Equipped with these materials, lighter electrical cars, aircraft, and consumer goods can be pursued.

lithium-ion batteries

carbon ber composites

brous materials

solid states

multifunctional materials

biomimetics

self-sustaining materials

Author

Leif Asp

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Karl Bouton

Royal Institute of Technology (KTH)

David Carlstedt

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Shanghong Duan

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Ross Harnden

Royal Institute of Technology (KTH)

Wilhelm Johannisson

Royal Institute of Technology (KTH)

Marcus Johansen

Chalmers, Industrial and Materials Science, Materials and manufacture

Mats KG Johansson

Royal Institute of Technology (KTH)

Goran Lindbergh

Royal Institute of Technology (KTH)

Fang Liu

Chalmers, Industrial and Materials Science, Materials and manufacture

Kevin Peuvot

Royal Institute of Technology (KTH)

Lynn Schneider

Royal Institute of Technology (KTH)

Johanna Xu

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Dan Zenkert

Royal Institute of Technology (KTH)

Advanced Energy & Sustainability Research

2699-9412 (ISSN)

Vol. 2 2000093

Damage Tolerance and Durability of Structural Power Composites

US Air Force Office of Strategic Research (AFOSR), 2017-09-30 -- 2020-09-29.

Structural pOweR CompositEs foR futurE civil aiRcraft (SORCERER)

European Commission (EC), 2017-02-01 -- 2020-02-28.

Driving Forces

Sustainable development

Innovation and entrepreneurship

Areas of Advance

Transport

Energy

Materials Science

Subject Categories

Materials Chemistry

Other Chemical Engineering

Composite Science and Engineering

Infrastructure

Chalmers Materials Analysis Laboratory

DOI

10.1002/aesr.202000093

More information

Created

2/4/2021 6