High Capacity Li–O[sub 2] Cell and Electrochemical Impedance Spectroscopy Study

Eswaran, Muthusankar; Munichandraiah, N.; Scanlon, L. G.

doi:10.1149/1.3447867

Cited by 51 publications

(32 citation statements)

References 18 publications

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“…This fi nding is supported by impedance analysis, as the pore blocking causes an increase of cell resistance because oxygen gas diffusion is not facilitated. [27][28][29] The microstructure of carbon materials is thus a critical factor that affects the electrochemical performance of Li-air batteries.…”

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

2,010

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: 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

2,010

1,216

View full text Add to dashboard Cite

show abstract

“…The transfer pathway for oxygen gas and lithium ions can also be clogged by Li 2 O 2 precipitate, resulting in an increase in cell resistance. [ 6,132,133 ] When the pore size is too small, such as in micropores (≤ 2 nm), the pore entrance easily becomes blocked, rendering the electrochemically active sites located deeper in the cathode substrate inaccessible. As consequence, poor specifi c capacities are reached, despite the large surface area.…”

Section: The Cathode Substratementioning

confidence: 99%

The Lithium/Air Battery: Still an Emerging System or a Practical Reality?

et al. 2014

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gas. At the same time, the penetration of renewable energy sources has opened up the possibility of creating a CO 2 -neutral mobility system, where electric vehicles are powered by wind, hydro, and solar energy.Broad fi nancial efforts are being made at a governmental and industrial level to fund research into new areas of energy storage. The U.S. Department of Energy has allocated $20 million to energy storage research in 2012 and $15 million the following year, while the German government has committed itself to ¤200 million between 2011 and 2018; [ 1 ] similar schemes are also being promoted in Japan by the New Energy and Industrial Technology Development Organization (NEDO). The EU-backed "Horizon 2020" program aims at funding research into energy storage technologies, a fi eld where the European Union lags behind the U.S. and East Asia. [ 2 ] Lithium-ion technology has established itself as a type of reliable energy-storage chemistry over the past 20 years, fi rst being used in camcorders, then mobile phones, laptops, and more recently electric cars. However, as the size of the battery pack increases, so does the belief that the cost per kW h and its energy density are not suitable for practical vehicle applications. The Tesla Model S, which sports a 400 km driving range, does so with a whopping 85 kW h battery pack that alone has up to twice the price of a standard economy car. With a current cost higher than 400 $ kW h −1 , electric cars have so far only entered a niche, high-end market where users are willing to pay a premium. Resizing the battery pack, and so the total cost of an electric car, results in a limited driving range (typically 100-150 km) that automatically restricts the use for long-haul journeys and triggers the so-called "range anxiety" feeling. For these reasons, the need to develop energy-storage technologies that enable at least a 500 km driving range, while retaining the same battery pack volume at an affordable price, is of primary interest for governments and car manufacturers. A Brief History of Lithium/Air BatteriesOver the years, the scientifi c community has focused its interest on advanced lithium-ion and fuel cells with only incremental improvements being made. Lithium-ion technology in particular is predicted to reach an asymptotic limit in specifi c Lithium/air is a fascinating energy storage system. The effective exploitation of air as a battery electrode has been the long-time dream of the battery community. Air is, in principle, a no-cost material characterized by a very high specifi c capacity value. In the particular case of the lithium/air system, energy levels approaching that of gasoline have been postulated. It is then not surprising that, in the course of the last decade, great attention has been devoted to this battery by various top academic and industrial laboratories worldwide. This intense investigation, however, has soon highlighted a series of issues that prevent a rapid development of the Li/air electrochemical system. Although several breakthroughs have be...

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“…The surface of a porous cathode is passivated due to the accumulation of nonconductive solid Li 2 O 2 species [37], and the pathways of reactants such as Li + and O 2 are blocked by Li 2 O 2 , resulting in increased cell resistances [46][47][48]. Performance of the cathode does not solely depend upon either the surface area, pore volume, or pore size of the cathode; instead, it is governed by an interplay of these parameters [49].…”

Section: Carbon-based Cathodes For Li-o 2 Batteriesmentioning

confidence: 99%

A Mini-Review on Non-Aqueous Lithium-Oxygen Batteries - Electrochemistry and Cathode Materials

Riaz

Jung

Lee

2015

Journal of Electrochemical Science and Technology

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There is a great deal of current interest in the development of rechargeable batteries with high energy storage capability due to an increasing demand for electric vehicles (EVs) with driving ranges comparable to those of gasoline-powered vehicles. Among various types of batteries under development, a Li-O 2 battery delivers the highest theoretical energy density; thus, it is considered a promising energy storage technology for EV applications. Despite the fact that extensive research efforts have been made in the field of Li-O 2 batteries in recent years, there are still many technical challenges to be addressed, such as low round-trip efficiency, poor reversibility, and poor power capability. In this article, we provide a short review on the fundamental electrochemistry of Li-O 2 batteries with non-aqueous electrolytes and on electrode materials that have been employed in cathodes (oxygen electrodes). The major aim of this mini-review is to highlight the physical and electrochemical origins of scientific challenges facing Li-O 2 battery technology and to overview the strategies proposed to overcome them.

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High Capacity Li–O[sub 2] Cell and Electrochemical Impedance Spectroscopy Study

Cited by 51 publications

References 18 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

The Lithium/Air Battery: Still an Emerging System or a Practical Reality?

A Mini-Review on Non-Aqueous Lithium-Oxygen Batteries - Electrochemistry and Cathode Materials

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