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Electrochemical energy conversion

About: Electrochemical energy conversion is a(n) research topic. Over the lifetime, 1606 publication(s) have been published within this topic receiving 89367 citation(s).

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Journal ArticleDOI: 10.1038/NMAT1368
01 May 2005-Nature Materials
Abstract: New materials hold the key to fundamental advances in energy conversion and storage, both of which are vital in order to meet the challenge of global warming and the finite nature of fossil fuels. Nanomaterials in particular offer unique properties or combinations of properties as electrodes and electrolytes in a range of energy devices. This review describes some recent developments in the discovery of nanoelectrolytes and nanoelectrodes for lithium batteries, fuel cells and supercapacitors. The advantages and disadvantages of the nanoscale in materials design for such devices are highlighted.

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7,703 Citations


Open accessJournal ArticleDOI: 10.1021/CR020730K
Martin Winter1, Ralph J. BroddInstitutions (1)
28 Sep 2004-Chemical Reviews
Abstract: Electrochemical energy conversion devices are pervasive in our daily lives. Batteries, fuel cells and supercapacitors belong to the same family of energy conversion devices. They are all based on the fundamentals of electrochemical thermodynamics and kinetics. All three are needed to service the wide energy requirements of various devices and systems. Neither batteries, fuel cells nor electrochemical capacitors, by themselves, can serve all applications.

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5,595 Citations


Open accessJournal ArticleDOI: 10.1002/ADMA.200800627
Yu-Guo Guo1, Jin-Song Hu1, Li-Jun Wan1Institutions (1)
04 Aug 2008-Advanced Materials
Abstract: One of the greatest challenges for our society is providing powerful electrochemical energy conversion and storage devices. Rechargeable lithium-ion batteries and fuel cells are amongst the most promising candidates in terms of energy densities and power densities. Nanostructured materials are currently of interest for such devices because of their high surface area, novel size effects, significantly enhanced kinetics, and so on. This Progress Report describes some recent developments in nanostructured anode and cathode materials for lithium-ion batteries, addressing the benefits of nanometer-size effects, the disadvantages of 'nano', and strategies to solve these issues such as nano/micro hierarchical structures and surface coatings, as well as developments in the discovery of nanostructured Pt-based electrocatalysts for direct methanol fuel cells (DMFCs). Approaches to lowering the cost of Pt catalysts include the use of i) novel nanostructures of Pt, ii) new cost-effective synthesis routes, iii) binary or multiple catalysts, and iv) new catalyst supports.

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1,907 Citations


Open accessJournal ArticleDOI: 10.1002/AENM.201000010
Jang-Soo Lee1, Sun Tai Kim1, Ruiguo Cao1, Nam-Soon Choi1  +3 moreInstitutions (2)
Abstract: In the past decade, there have been exciting developments in the field 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 sufficient 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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Topics: Zinc–air battery (63%), Electrochemical energy conversion (60%), Energy storage (57%) ...read more

1,587 Citations


Open accessJournal ArticleDOI: 10.1002/1615-6854(200105)1:1<5::AID-FUCE5>3.0.CO;2-G
01 May 2001-Fuel Cells
Abstract: Fuel cells will make a valuable contribution to future power generation facilities. They improve the flexibility and increase the options for many applications, such as distributed power, vehicle propulsion, and portable devices. Their main property is the high electrical efficiency compared to other energy conversion devices. Both the low-temperature and the high-temperature fuel cells have their advantages and disadvantages depending on the application. Sometimes, they can both be implemented in similar applications. The modularity of fuel cells makes them quite flexible as the power needed can easily be attained by changing the number of modules. Twenty years ago, mainly universities and research institutions but only a few companies conducted fuel cell research working on the fundamentals of fuel cells. Nowadays due to the commercial interest innumerable research groups and companies have fuel cell activities ranging from the investigation of catalysts (both improving existing catalyst systems as searching for new catalysts), the development of novel membranes for PEMFCs and DMFCs, to the development of other components for fuel cells. Optimisation of flow field structures, backing layers, and other components of the single cells have intensified. (orig.)

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1,314 Citations


Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20228
2021156
2020143
2019134
2018101
2017134

Top Attributes

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Topic's top 5 most impactful authors

Gang Wu

7 papers, 772 citations

Karl Johann Jakob Mayrhofer

6 papers, 389 citations

Ulrich Stimming

6 papers, 777 citations

Yaovi Holade

5 papers, 44 citations

Yury Gogotsi

5 papers, 1.9K citations

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