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Title: Lithium Superoxide Hydrolysis and Relevance to Li–O2 Batteries

Journal Article · · Journal of Physical Chemistry. C

Fundamental understanding of reactions of lithium peroxides and superoxides is essential for the development of Li–O2 batteries. In this context, an investigation is reported of the hydrolysis of lithium superoxide, which has recently been synthesized in a Li–O2 battery. Surprisingly, the hydrolysis of solid LiO2 is significantly different from that of NaO2 and KO2. Unlike KO2 and NaO2, the hydrolysis of LiO2 does not produce H2O2. Similarly, the reactivity of Li2O2 toward water differs from LiO2, in that Li2O2 results in H2O2 as a product. The difference in the LiO2 reactivity with water is due to the more exothermic nature of the formation of LiOH and O2 compared with the corresponding reactions of NaO2 and KO2. Here, we also show that a titration method used in this study, based on reaction of the discharge product with a Ti(IV)OSO4 solution, provides a useful diagnostic technique to provide information on the composition of a discharge product in a Li–O2 battery.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1374608
Journal Information:
Journal of Physical Chemistry. C, Journal Name: Journal of Physical Chemistry. C Journal Issue: 18 Vol. 121; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (17)

Peroxides, Superoxides, and Ozonides of the Metals of Groups Ia, IIa, and IIb book January 1962
The kinetics of complex formation between Ti(IV) and hydrogen peroxide journal January 2007
The Li-O (lithium-oxygen) system journal June 1992
Understanding Side Reactions in K–O 2 Batteries for Improved Cycle Life journal October 2014
A Facile Mechanism for Recharging Li2O2 in Li–O2 Batteries journal August 2013
Colorimetric Determination of Hydrogen Peroxide journal May 1943
Matrix infrared spectrum and bonding in the lithium superoxide molecule, LiO2 journal December 1968
Disproportionation in Li–O2 Batteries Based on a Large Surface Area Carbon Cathode journal October 2013
Density Functional Investigation of the Thermodynamic Stability of Lithium Oxide Bulk Crystalline Structures as a Function of Oxygen Pressure journal November 2011
Raman Evidence for Late Stage Disproportionation in a Li–O2 Battery journal July 2014
Interfacial Effects on Lithium Superoxide Disproportionation in Li-O 2 Batteries journal January 2015
A lithium–oxygen battery based on lithium superoxide journal January 2016
Integrating a redox-coupled dye-sensitized photoelectrode into a lithium–oxygen battery for photoassisted charging journal October 2014
Spectrophotometric determination of hydrogen peroxide using potassium titanium(IV) oxalate journal January 1980
A comprehensive study on the cell chemistry of the sodium superoxide (NaO2) battery journal January 2013
Gaussian-4 theory journal February 2007
Gaussian-4 theory using reduced order perturbation theory journal September 2007

Cited By (3)

Vanadium(III) Acetylacetonate as an Efficient Soluble Catalyst for Lithium–Oxygen Batteries journal July 2019
Vanadium(III) Acetylacetonate as an Efficient Soluble Catalyst for Lithium–Oxygen Batteries journal September 2019
Defect Chemistry in Discharge Products of Li-O 2 Batteries journal November 2018

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