Unraveling the Effects of Hierarchical Bimodal Microscale Porosity on Thick Electrodes
Journal Article
·
· Journal of Physical Chemistry. C
- Univ. of Texas, Austin, TX (United States)
- Stony Brook Univ., NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
The thick electrode design is preferential in high-energy lithium-ion batteries (LIBs) systems. However, the sluggish ionic transport in homogeneous porous thick electrodes severely limits the areal capacity at high charging/discharging rates. The hierarchical porous design is a promising approach to mitigate kinetic limitations because it can distribute mass effectively in natural systems. In this study, the effects of bimodal microscale pores are fully investigated in thick electrodes from both architectural and electrochemical perspectives. Notably, by introduction of the bimodal microscale porous structure, the rate capability improves remarkably in thick electrodes with a low porosity (39%). Herein, by combining experimental results with simulations, this work presents a rational design guideline for preparing thick electrodes with a porosity at the commercial level, as well as simultaneous high energy and power densities, which brings new insights into the advanced electrode architecture design in scalable high-energy and high-power energy storage systems for practical applications.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Mesoscale Transport Properties
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0012673; SC0012704
- OSTI ID:
- 1895585
- Report Number(s):
- BNL-223647-2022-JAAM
- Journal Information:
- Journal of Physical Chemistry. C, Journal Name: Journal of Physical Chemistry. C Journal Issue: 36 Vol. 126; ISSN 1932-7447
- Publisher:
- American Chemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Thick Electrode Design for Facile Electron and Ion Transport: Architectures, Advanced Characterization, and Modeling
Tortuosity Engineering for Improved Charge Storage Kinetics in High-Areal-Capacity Battery Electrodes
Multiscale Understanding and Architecture Design of High Energy/Power Lithium-Ion Battery Electrodes
Journal Article
·
Mon Mar 21 20:00:00 EDT 2022
· Accounts of Materials Research
·
OSTI ID:1893742
Tortuosity Engineering for Improved Charge Storage Kinetics in High-Areal-Capacity Battery Electrodes
Journal Article
·
Tue Aug 02 20:00:00 EDT 2022
· Nano Letters
·
OSTI ID:1895583
Multiscale Understanding and Architecture Design of High Energy/Power Lithium-Ion Battery Electrodes
Journal Article
·
Tue May 05 20:00:00 EDT 2020
· Advanced Energy Materials
·
OSTI ID:1767779