Open AccessA Structural Battery and its Multifunctional Performance
Author(s) -
Asp Leif E.,
Bouton Karl,
Carlstedt David,
Duan Shanghong,
Harnden Ross,
Johannisson Wilhelm,
Johansen Marcus,
Johansson Mats K. G.,
Lindbergh Göran,
Liu Fang,
Peuvot Kevin,
Schneider Lynn M.,
Xu Johanna,
Zenkert Dan
Publication year - 2021
Publication title -
advanced energy and sustainability research
Language(s) - English
Resource type - Journals
ISSN - 2699-9412
DOI - 10.1002/aesr.202000093
Subject(s) - materials science , battery (electricity) , electrolyte , electrode , composite material , current collector , composite number , lithium ion battery , lithium iron phosphate , fiber , chemistry , electrochemistry , power (physics) , physics , quantum mechanics
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.