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Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
Published on: May 22, 2018
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Secondary-Phase Stochastics in Lithium-Ion Battery Electrodes
Aashutosh N Mistry1, Kandler Smith2, Partha P Mukherjee1
1School of Mechanical Engineering, Purdue University , West Lafayette, Indiana 47907, United States.
ACS Applied Materials & Interfaces
|January 13, 2018
Summary
Optimizing lithium-ion battery electrode structure is key. Secondary phase morphology impacts performance by influencing transport and kinetics, suggesting microstructural modifications for enhanced energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Chemical Engineering
Background:
- Lithium-ion battery electrodes involve complex interactions between electrochemically active and inactive phases.
- Inactive secondary phases (conductive additives, binders) enhance conductivity and integrity but can impede ion transport and active site accessibility.
Purpose of the Study:
- To elucidate the role of mesoscale interactions and stochasticity in porous lithium-ion battery electrodes.
- To understand how electrode microstructure and secondary phase morphology influence transport phenomena and electrochemical kinetics.
Main Methods:
- Analysis of short-range interfacial and long-range transport characteristics within electrode microstructures.
- Investigating the impact of secondary-phase morphology on microstructure-transport-kinetics relationships.
Main Results:
- Electrode microstructure significantly dictates kinetically and transport-limiting behaviors, affecting overall cell performance.
- Secondary phase morphology critically influences the interplay between microstructure, transport, and kinetics.
Conclusions:
- Electrode microstructural design is crucial for optimizing lithium-ion battery performance.
- Strategic modifications to secondary phase morphology can enhance battery energy storage capabilities.
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