Probing lithiation and delithiation of thick sintered lithium-ion battery electrodes with neutron imaging
Journal Article
·
· Journal of Power Sources
- Univ. of Virginia, Charlottesville, VA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
As lithium-on (Li-ion) batteries increase in their prevalence and the range of applications expands, there is a need to understand and exploit the limits of electrochemical performance. Probing the internal processes in Li-ion batteries provides insights into the electrochemical characteristics of the cells as well as information necessary for rational cell design. In this manuscript an in situ method, neutron imaging, is applied to Li-ion full cells to track the lithiation/delithiation processes in the electrodes during discharge. The electrodes comprise thick sintered films of only active material, which improves the number of discrete points that are mapped for net changes in neutron intensity through the electrode. The lithiation/delithiation processes are qualitatively consistent with calculations of the Li+ concentration and discharge profiles of the cells. These results illustrate that neutron imaging can experimentally probe and confirm limitations in the electrochemical performance of Li-ion full cells, particularly those with thick electrodes.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1526376
- Alternate ID(s):
- OSTI ID: 1636520
- Journal Information:
- Journal of Power Sources, Journal Name: Journal of Power Sources Journal Issue: C Vol. 419; ISSN 0378-7753
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Probing transport limitations in thick sintered battery electrodes with neutron imaging
|
journal | January 2020 |
Similar Records
The Nature of Electrochemical Delithiation of Li-Mg Alloy Electrodes: Neutron Computed Tomography and Modeling of Li Diffusion and Delithiation Phenomenon
The Atomic Scale Electrochemical Lithiation and Delithiation Process of Silicon
Operando Quantification of (De)Lithiation Behavior of Silicon-Graphite Blended Electrodes for Lithium-Ion Batteries
Journal Article
·
Sun Dec 04 19:00:00 EST 2016
· Journal of the Electrochemical Society
·
OSTI ID:1393861
The Atomic Scale Electrochemical Lithiation and Delithiation Process of Silicon
Journal Article
·
Mon Sep 11 20:00:00 EDT 2017
· Advanced Materials Interfaces
·
OSTI ID:1389664
Operando Quantification of (De)Lithiation Behavior of Silicon-Graphite Blended Electrodes for Lithium-Ion Batteries
Journal Article
·
Wed Jan 02 19:00:00 EST 2019
· Advanced Energy Materials
·
OSTI ID:1496633