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Title: Real-Time Monitoring of Cation Dissolution/Deintercalation Kinetics from Transition-Metal Oxides in Organic Environments

Journal Article · · Journal of Physical Chemistry Letters

The future of high-voltage rechargeable batteries is closely tied to the fundamental understanding of the processes that lead to the potential-dependent degradation of electrode materials and organic electrolytes. To date, however, there have been no methods able to provide quantitative, in situ and in real time information about the electrode dissolution kinetics and concomitant electrolyte decomposition during charge/discharge. We describe the development of such a method, which is of both fundamental and technological significance. Our novel approach enables simultaneous and independent measurements of transition-metal cation dissolution rates from different oxide hosts (Co3+/4+ or Cr3+/4+), deintercalation kinetics of working cations (Mg2+), and the relative rate of electrolyte decomposition.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1473598
Journal Information:
Journal of Physical Chemistry Letters, Vol. 9, Issue 17; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

References (26)

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Electrochemical Cross-Talk Leading to Gas Evolution and Capacity Fade in LiNi 0.5 Mn 1.5 O 4 /Graphite Full-Cells journal December 2016
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Factors that affect cycle-life and possible degradation mechanisms of a Li-ion cell based on LiCoO2 journal September 2002
Spinel compounds as multivalent battery cathodes: a systematic evaluation based on ab initio calculations journal January 2015
Water as a Promoter and Catalyst for Dioxygen Electrochemistry in Aqueous and Organic Media journal October 2015
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Mg(PF 6 ) 2 -Based Electrolyte Systems: Understanding Electrolyte–Electrode Interactions for the Development of Mg-Ion Batteries journal July 2016

Cited By (1)

Electrochemical On‐line ICP‐MS in Electrocatalysis Research journal December 2018

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