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Title: Electrochemistry Coupled Mesoscale Complexations in Electrodes Lead to Thermo-Electrochemical Extremes

Abstract

Thermo-electrochemical extremes continue to remain a challenge for lithium-ion batteries. Contrary to the conventional approach, we propose herein that the electrochemistry-coupled and microstructure-mediated cross talk between the positive and negative electrodes ultimately dictates the off-equilibrium-coupled processes, such as heat generation and the propensity for lithium plating. The active particle morphological differences between the electrode couple foster a thermo-electrochemical hysteresis, where the difference in heat generation rates changes the electrochemical response. The intrinsic asymmetry in electrode microstructural complexations leads to thermo-electrochemical consequences, such as cathode-dependent thermal excursion and co-dependent lithium plating otherwise believed to be anode-dependent.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [1]
  1. School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
  2. National Renewable Energy Laboratory, Golden, Colorado 80401, United States
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V), Computer Aided Engineering for Batteries (CAEBAT III) Program
OSTI Identifier:
1468522
Report Number(s):
NREL/JA-5400-72305
Journal ID: ISSN 1944-8244
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Journal Article
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 10; Journal Issue: 34; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 30 DIRECT ENERGY CONVERSION; electrode microstructure; heat generation; lithium plating; particle morphology; secondary phase; thermo-electrochemical hysteresis

Citation Formats

Mistry, Aashutosh N., Smith, Kandler, and Mukherjee, Partha P. Electrochemistry Coupled Mesoscale Complexations in Electrodes Lead to Thermo-Electrochemical Extremes. United States: N. p., 2018. Web. doi:10.1021/acsami.8b08993.
Mistry, Aashutosh N., Smith, Kandler, & Mukherjee, Partha P. Electrochemistry Coupled Mesoscale Complexations in Electrodes Lead to Thermo-Electrochemical Extremes. United States. doi:10.1021/acsami.8b08993.
Mistry, Aashutosh N., Smith, Kandler, and Mukherjee, Partha P. Fri . "Electrochemistry Coupled Mesoscale Complexations in Electrodes Lead to Thermo-Electrochemical Extremes". United States. doi:10.1021/acsami.8b08993.
@article{osti_1468522,
title = {Electrochemistry Coupled Mesoscale Complexations in Electrodes Lead to Thermo-Electrochemical Extremes},
author = {Mistry, Aashutosh N. and Smith, Kandler and Mukherjee, Partha P.},
abstractNote = {Thermo-electrochemical extremes continue to remain a challenge for lithium-ion batteries. Contrary to the conventional approach, we propose herein that the electrochemistry-coupled and microstructure-mediated cross talk between the positive and negative electrodes ultimately dictates the off-equilibrium-coupled processes, such as heat generation and the propensity for lithium plating. The active particle morphological differences between the electrode couple foster a thermo-electrochemical hysteresis, where the difference in heat generation rates changes the electrochemical response. The intrinsic asymmetry in electrode microstructural complexations leads to thermo-electrochemical consequences, such as cathode-dependent thermal excursion and co-dependent lithium plating otherwise believed to be anode-dependent.},
doi = {10.1021/acsami.8b08993},
journal = {ACS Applied Materials and Interfaces},
issn = {1944-8244},
number = 34,
volume = 10,
place = {United States},
year = {2018},
month = {8}
}