Oxygen Transport Properties of Organic Electrolytes and Performance of Lithium/Oxygen Battery

Read, Jeffrey; Mutolo, K.; Ervin, Matthew H.; Behl, Wishvender K.; Wolfenstine, J.; Driedger, Albert A.; Foster, Donald

doi:10.1149/1.1606454

Cited by 440 publications

(433 citation statements)

References 6 publications

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“…Read et al considered not only oxygen solubility but also electrolyte viscosity. [ 38 ] The discharge capacity was increased by decreasing electrolyte viscosity. This indicates that lower viscosity facilitates oxygen transport in the electrolyte, resulting in improving ORR kinetics.…”

Section: Electrolytementioning

confidence: 99%

“…Read et al, Yang et al and Tran et al showed that the specifi c capacity increased as the oxygen pressure increased. [38][39][40] This phenomenon indicates that practical application of Li-air batteries will not be easy. Most studies on Li-air batteries have been performed using pure oxygen gas, and, therefore, oxygen pressure is 1 atm.…”

Section: Electrode Architecturementioning

confidence: 99%

See 1 more Smart Citation

Metal–Air Batteries with High Energy Density: Li–Air versus Zn–Air

Lee

Kim

Cao

et al. 2010

Advanced Energy Materials

2,048

1,216

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In the past decade, there have been exciting developments in the fi eld of lithium ion batteries as energy storage devices, resulting in the application of lithium ion batteries in areas ranging from small portable electric devices to large power systems such as hybrid electric vehicles. However, the maximum energy density of current lithium ion batteries having topatactic chemistry is not suffi cient to meet the demands of new markets in such areas as electric vehicles. Therefore, new electrochemical systems with higher energy densities are being sought, and metal-air batteries with conversion chemistry are considered a promising candidate. More recently, promising electrochemical performance has driven much research interest in Li-air and Zn-air batteries. This review provides an overview of the fundamentals and recent progress in the area of Li-air and Zn-air batteries, with the aim of providing a better understanding of the new electrochemical systems.

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Section: Electrolytementioning

confidence: 99%

Section: Electrode Architecturementioning

confidence: 99%

Metal–Air Batteries with High Energy Density: Li–Air versus Zn–Air

Lee

Kim

Cao

et al. 2010

Advanced Energy Materials

2,048

1,216

View full text Add to dashboard Cite

show abstract

“…4,5 The suggestion that electrical passivation was a central issue resulted from comparing the discharge capacity of typical Li-O 2 batteries with large surface area porous C cathodes to that observed with low surface area glassy carbon (GC) electrodes, where clogging and O 2 transport issues were negligible. Although the absolute magnitudes of the capacity were different in the two cases, both showed the same qualitative discharge behavior, i.e., a relatively stable discharge potential at ∼2.6 V to a certain discharge capacity, followed by a sudden decrease in output potential to <2.0 V (defined as death of the cell).…”

Section: Introductionmentioning

confidence: 99%

Electrical conductivity in Li2O2 and its role in determining capacity limitations in non-aqueous Li-O2 batteries

Viswanathan

Thygesen

Hummelshøj

et al. 2011

The Journal of Chemical Physics

541

661

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New photoacoustic cell design for studying aqueous solutions and gels Rev. Sci. Instrum. 82, 084903 (2011) Electric response of a cell of hydrogel: Role of the electrodes Appl. Phys. Lett. 98, 064101 (2011) Effect of the gate electrode on the response of organic electrochemical transistors APL: Org. Electron. Photonics 3, 205 (2010) Effect of the gate electrode on the response of organic electrochemical transistors Appl. Phys. Lett. 97, 123304 (2010) Note: Fixture for characterizing electrochemical devices in-operando in traditional vacuum systems Rev. Sci. Instrum. 81, 086104 (2010) Additional information on J. Chem. Phys. Non-aqueous Li-air or Li-O 2 cells show considerable promise as a very high energy density battery couple. Such cells, however, show sudden death at capacities far below their theoretical capacity and this, among other problems, limits their practicality. In this paper, we show that this sudden death arises from limited charge transport through the growing Li 2 O 2 film to the Li 2 O 2 -electrolyte interface, and this limitation defines a critical film thickness, above which it is not possible to support electrochemistry at the Li 2 O 2 -electrolyte interface. We report both electrochemical experiments using a reversible internal redox couple and a first principles metal-insulator-metal charge transport model to probe the electrical conductivity through Li 2 O 2 films produced during Li-O 2 discharge. Both experiment and theory show a "sudden death" in charge transport when film thickness is ∼5 to 10 nm. The theoretical model shows that this occurs when the tunneling current through the film can no longer support the electrochemical current. Thus, engineering charge transport through Li 2 O 2 is a serious challenge if Li-O 2 batteries are ever to reach their potential.

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“…The porous structure acts as gas transport pores for the diffusion of oxygen to the carbon-electrolyte interface (reaction zone), formation and storage of Li 2 O 2 during the discharge process and also electrochemical decomposition of Li 2 O 2 during the charge process. The kinetics of oxygen diffusion through the cathode limits the performance of the Li/oxygen cells [9]. It has been also discussed that the end-ofdischarge of the cell is reached when the carbon pores are filled or choked by the deposition of Li 2 O 2 [7,10].…”

Section: Introductionmentioning

confidence: 99%

Preparation of controlled porosity carbon aerogels for energy storage in rechargeable lithium oxygen batteries

Mirzaeian

Hall

2009

Electrochimica Acta

200

127

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b s t r a c tPorous carbon aerogels are prepared by polycondensation of resorcinol and formaldehyde catalyzed by sodium carbonate followed by carbonization of the resultant aerogels in an inert atmosphere. Pore structure of carbon aerogels is adjusted by changing the molar ratio of resorcinol to catalyst during gel preparation and also pyrolysis under Ar and activation under CO 2 atmosphere at different temperatures.The prepared carbons are used as active materials in fabrication of composite carbon electrodes. The electrochemical performance of the electrodes has been tested in a Li/O 2 cell. Through the galvanostatic charge/discharge measurements, it is found that the cell performance (i.e. discharge capacity and discharge voltage) depends on the morphology of carbon and a combined effect of pore volume, pore size and surface area of carbon affects the storage capacity. A Li/O 2 cell using the carbon with the largest pore volume (2.195 cm 3 /g) and a wide pore size (14.23 nm) showed a specific capacity of 1290 mA h g −1 .

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Oxygen Transport Properties of Organic Electrolytes and Performance of Lithium/Oxygen Battery

Cited by 440 publications

References 6 publications

Metal–Air Batteries with High Energy Density: Li–Air versus Zn–Air

Metal–Air Batteries with High Energy Density: Li–Air versus Zn–Air

Electrical conductivity in Li2O2 and its role in determining capacity limitations in non-aqueous Li-O2 batteries

Preparation of controlled porosity carbon aerogels for energy storage in rechargeable lithium oxygen batteries

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