Results 1 to 10 of about 466,028 (348)

Hierarchically porous carbon nanofiber binder-free electrode for high-performance lithium–sulfur batteries

open access: yesFrontiers in Energy Research, 2022
It is still a challenge for lithium–sulfur (Li-S) batteries to possess high sulfur utilization and excellent electrochemical performances due to the low electrical conductivity and dissolution of polysulfides.
Ming Xiao, Ruixue Li, Yu Dai, Ting Yang
doaj   +1 more source

Calix[8]quinone: A new promising macrocyclic molecule as an efficient organic cathode in lithium ion batteries with a highly‐concentrated electrolyte

open access: yesEcoMat, 2022
Organic cathode materials have potential applications in rechargeable batteries due to their several advantages such as high specific capacity, flexible designability, plentiful raw materials, environmental friendliness, and renewability.
Weiwei Huang   +6 more
doaj   +1 more source

SmBa1-xCaxCo2O5+d Layered Perovskite Cathodes for Intermediate Temperature-operating Solid Oxide Fuel Cells

open access: yesFrontiers in Chemistry, 2021
In SmBa1-xCaxCo2O5+d (x = 0.01, 0.03, 0.1, and 0.2, SBCCO) oxide systems calcined at 1100°C for 8 h, the XRD patterns of the SBCCO single phase were maintained in the cases of SmBa0.97Ca0.03Co2O5+d (SBCCO-0.97) and SmBa0.99Ca0.01Co2O5+d (SBCCO-0.99 ...
Kyeong Eun Song   +6 more
doaj   +1 more source

Virtual cathode emission of an annular cold cathode [PDF]

open access: yesPhysical Review Special Topics - Accelerators and Beams, 2009
Recent measurement of voltage V and current I of the electron gun of a relativistic klystron amplifier revealed that the resulting current-voltage relationship appeared to differ from the usual Child-Langmuir law (I∝V^{3/2}) especially during the initial period of voltage increase. This paper attempts to explain this deviation by examining the emission
Park, SD   +7 more
openaire   +3 more sources

The Effects of Incorporated Sn in Resynthesized Ni-Rich Cathode Materials on Their Lithium-Ion Battery Performance

open access: yesMetals, 2017
LiNixCoyMnz (NCM), one of the most promising candidates for high-capacity cathode materials in Li-ion batteries (LIBs), is synthesized with various amounts of Sn.
Ga-hee Kang   +3 more
doaj   +1 more source

Research Progress of the Solid State Lithium-Sulfur Batteries

open access: yesFrontiers in Energy Research, 2019
Lithium-sulfur batteries using lithium as the anode and sulfur as the cathode can achieve a theoretical energy density (2,600 Wh.g−1) several times higher than that of Li ion batteries based on the chemical conversion reaction of 6Li + S8 ↔ 8Li2S.
HangChao Wang   +3 more
doaj   +1 more source

Materiais usados na constituição dos principais componentes de células a combustível de óxido sólido Materials used in the manufacture of the main components of solid oxide fuel cells

open access: yesCerâmica, 2009
As células a combustível de óxido sólido (SOFC) são dispositivos capazes de gerar energia elétrica com alta eficiência e baixa emissão de poluentes. As altas temperaturas de operação dessas células (600 a 1000 °C) são benéficas no sentido de possibilitar
A. C. Nascimento, N. D. S. Mohallem
doaj   +1 more source

Synthesis and characterization of electrospun molybdenum dioxide–carbon nanofibers as sulfur matrix additives for rechargeable lithium–sulfur battery applications

open access: yesBeilstein Journal of Nanotechnology, 2018
One-dimensional molybdenum dioxide–carbon nanofibers (MoO2–CNFs) were prepared using an electrospinning technique followed by calcination, using sol–gel precursors and polyacrylonitrile (PAN) as a processing aid.
Ruiyuan Zhuang   +7 more
doaj   +1 more source

The Effect of Active Material, Conductive Additives, and Binder in a Cathode Composite Electrode on Battery Performance

open access: yesEnergies, 2019
The current study investigated the effects of active material, conductive additives, and binder in a composite electrode on battery performance. In addition, the parameters related to cell performance as well as side reactions were integrated in an ...
Yoon Koo Lee
doaj   +1 more source

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