%0 Journal Article
%T Carbon fiber composites with battery function: Stresses and dimensional changes due to Li
%A G£¿ran Lindbergh
%A Janis Varna
%A Johanna Xu
%J Journal of Composite Materials
%@ 1530-793X
%D 2018
%R 10.1177/0021998317752825
%X Structural composite materials that simultaneously carry mechanical loads, while storing electrical energy offers the potential of significantly reduced total component weight owing to the multifunctionality. In the suggested micro-battery, the carbon fiber is employed as a negative electrode of the battery and also as a composite reinforcement material. It is coated with a solid polymer electrolyte working as an ion conductor and separator while transferring mechanical loads. The coated fiber is surrounded by a conductive positive electrode material matrix. This paper demonstrates a computational methodology for addressing mechanical stresses arising in a conceptualized micro-battery and dimensional changes of the cell during electrochemical cycling, caused by time-dependent gradients in lithium ion concentration distribution
%K Micro-battery
%K carbon fibers
%K lithium ion
%K intercalation
%K swelling
%K stress state
%U https://journals.sagepub.com/doi/full/10.1177/0021998317752825