A high-capacity lithium–air battery with Pd modified carbon nanotube sponge cathode working in regular air

Shen, Yue; Sun, Dan; Yu, Ling; Zhang, Wang; Shang, Yuanyuan; Tang, Huiru; Wu, Junfang; Cao, Anyuan; Huang, Yunhui

doi:10.1016/j.carbon.2013.05.066

Cited by 122 publications

(96 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The observed trend was consistent with the ORR polarization curves obtained with a rotating disc electrode and with the discharge overpotential observed in lithium/air cells. Due to their excellent ORR catalytic effects, palladium and platinum have been the preferred choice for catalysts, [176][177][178] either in pure form or combined with other catalysts (metals [ 179,180 ] or metal oxides [181][182][183] . Recently, in an attempt to prevent electrolyte decomposition on the carbon surface, Lu et al used a catalyst consisting of palladium nanoparticles on a carbon surface partially coated with alumina to passivate the carbon defect sites.…”

Section: Metalsmentioning

confidence: 99%

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

et al. 2014

View full text Add to dashboard Cite

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...

show abstract

Section: Metalsmentioning

confidence: 99%

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

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Note that there were two potential stages during the charge process. The first could be assigned to the Li 2 O 2 oxidation, while the other may correspond to electrolyte decomposition [46,47], and/or the LiOH oxidation [5]. LiOH could be formed due to the introduction of water into the system via the DMSO solvent, and/or the DMSO oxidation by reactive oxygen species (e.g., LiO 2 and Li 2 O 2 ) [48,49].…”

Section: Characterizationmentioning

confidence: 99%

“…The rechargeable Li-O 2 battery has recently attracted a great deal of attention because of its significantly higher theoretical energy density than traditional lithium-ion battery [1][2][3][4][5]. A Li-O 2 battery prototype is composed of a lithium metal anode, Li + -containing nonaqueous electrolyte, and a porous O 2 cathode (normally carbon-based materials with or without catalysts).…”

Section: Introductionmentioning

confidence: 99%

Binder-free nitrogen-doped carbon paper electrodes derived from polypyrrole/cellulose composite for Li–O2 batteries

Liu

Wang

Zhu

2016

Journal of Power Sources

View full text Add to dashboard Cite

This work presents a novel binder-free nitrogen-doped carbon paper electrode (NCPE), which was derived from a N-rich polypyrrole (PPy)/cellulose-chopped carbon filaments (CCFs) composite, for Li-O 2 batteries. The fabrication of NCPE involved cheap raw materials (e.g., Cladophora sp. green algae) and easy operation (e.g., doping N by a carbonization of N-rich polymer), which is especially suitable for large-scale production. Asprepared NCPEs were characterized by XRD, Raman, SEM, XPS, Brunauer-Emmett-Teller (BET), and thermogravimetry (TG) measurements. The NCPE exhibited a bird's nest microstructure, which could provide the self-standing electrode with considerable mechanic durability, fast Li + and O 2 diffusion, and enough space for the discharge product deposition. In addition, the NCPE contained N-containing function groups, which may promote the electrochemical reactions. Furthermore, binder-free architecture designs can prevent binderinvolved parasitic reactions. A Li-O 2 cell with the NCPE dispalyed a cyclability of more than 30 cycles at a constant current density of 0.1 mA/cm 2 . The 1 st discharge capacity for a cell with the NCPE reached 8040 mAh· g -1 at a current density of 0.1 mA/cm 2 , with a cell voltage around 2.81 V. In addition, a cell with the NCPE displayed a coulombic efficiency of 81 % on the 1 st cycle at a current density of 0.2 mA/cm 2 . These results represent a promising progress in the development of a low-cost and versatile paper-based O 2 electrode for Li-O 2 batteries.

show abstract

“…To date, various carbon electrodes such as porous carbon [13,14], carbon fibres [15,16], graphene [11,17,18] and carbon nanotube (CNT) composites [9,19,20] have been selected as the cathodes, owing to their highly electronic conductivity, tunable porosity, light weight and low cost. Among them, nanostructured CNTs have been regarded as one of the most efficient oxygen cathodes for reversible LieO 2 batteries, as they could be modified easily by surface chemistry to enhance catalytic activities and prolong cycle durabilities [9,19e21] and could readily visualize the morphological and compositional changes of reactions products during cycling operation [22e24].…”

Section: Introductionmentioning

confidence: 99%