4.4 Article

Carbon fiber composites with battery function: Stresses and dimensional changes due to Li-ion diffusion

Journal

JOURNAL OF COMPOSITE MATERIALS
Volume 52, Issue 20, Pages 2729-2742

Publisher

SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998317752825

Keywords

Micro-battery; carbon fibers; lithium ion; intercalation; swelling; stress state

Funding

  1. Swedish Energy Agency [37712-1]

Ask authors/readers for more resources

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.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.4
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available