Simulation of Wear Processes of the Monorail Electrical Transport Current Collector Contact Elements

2017 ◽  
pp. 59-68
Author(s):  
Oleg Sidorov ◽  
Victor Philippov
Keyword(s):  
Electrical Transport ◽  
Current Collector ◽  
Transport Current

scholarly journals Diffusion & concentration effect of Li/Li+ to the efficiency of LIBs

2020 ◽  
Vol 10 (2) ◽  
pp. 5076-5084
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Specific Energy ◽  
Electrical Transport ◽  
Anode Materials ◽  
Lithium Ion ◽  
Current Collector ◽  
Free Standing ◽  
Specific Energy Density ◽  
Battery Design

In this work the concentration of Li/Li+ has applied for increasing the efficiency of Lithium ion batteries. Various numbers of lithium and lithium cations have been simulated as diffused atoms in graphite as anode materials. We have found the structure of (G// (h-BN) //G) can be to improve the voltage and electrical transport in anodic sheets-based LIBs. This system could also be assembled into free-standing electrodes without any binder or current collector, which will lead to increased specific energy density for the overall battery design. Therefore, the above modification of BN-G sheet and designing of this kind structure provide strategies for improving the performance of material based anodes in LIBs.

Lithium Ion Battery Including BN Doped Graphene Electrodes

2016 ◽  
Vol 13 (10) ◽  
pp. 6680-6693
Author(s):  
Majid Monajjemi ◽  
Hashem Ahmadin ◽  
Maryam Ahadi ◽  
Mehdi Imanzadeh ◽  
Naime Attarikhasraghi ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Battery ◽  
Specific Energy ◽  
Electrical Transport ◽  
Lithium Ion ◽  
Current Collector ◽  
Free Standing ◽  
Specific Energy Density ◽  
Battery Design ◽  
Doped Graphene

We have found the structure of (Cx-BN//(h-BN)n//Cx-BN) can be to improve the capacity and electrical transport in C-B-N sheets-based LIBs. Therefore, the modification of BN-G sheet and design of (Cx-BN//(h-BN)n//Cx-BN) structures provide strategies for improving the performance of material based anodes in LIBs. (Cx-BN//(h-BN)n//Cx-BN) could also be assembled into free-standing electrodes without any binder or current collector, which will lead to increased specific energy density for the overall battery design.

ANOMALOUS RE-ENTRANT SUPERCONDUCTIVITY IN Sr0.4K0.6BiO3: RECOVERY OF SUPERCONDUCTIVITY WITH ELECTRIC AND MAGNETIC FIELD

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3189-3192
Author(s):  
D. C. KIM ◽  
J. S. KIM ◽  
A. N. BARANOV ◽  
Y. W. PARK ◽  
J. S. PSHIRKOV ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Normal State ◽  
Superconducting State ◽  
Electrical Transport ◽  
Transport Current ◽  
Zero Magnetic Field ◽  
Resistive Transition ◽  
Normal State Resistivity ◽  
Electric And Magnetic Field

Anomalous re-entrant superconducting-normal resistive transition was observed in Sr 0.4 K 0.6 BiO 3 superconductor i.e., normal – supernormal behavior as temperature is increased. Contrary to previously reported re-entrant resistive behaviors in other compounds, the re-entrant resistivity appearing at zero magnetic field in Sr 0.4 K 0.6 BiO 3 is suppressed to zero by applying an external magnetic field (H) or increasing the electrical transport current (I): an observation of a zero resistive superconducting state induced by H or I. Comparisons of the normal-state resistivity data in different samples indicate an important role that disorder in the junction barriers between superconducting grains might play on the observed re-entrant resistivity behavior. Possible physical origins of this anomalous phenomenon are discussed.

Cylindrical Capacitor-Anode Interaction Between Lithium Ion Batteries and (m, m)@(n, n) Double Wall Boron Nitride Nanotubes

2016 ◽  
Vol 13 (10) ◽  
pp. 7293-7302
Author(s):  
Marzieh Sadat Madani ◽  
Farrokh Roya Nikmaram ◽  
Azin Chitsazan ◽  
Farand Farzi ◽  
Majid Monajjemi
Keyword(s):  
Boron Nitride ◽  
Lithium Ion Batteries ◽  
Electrical Transport ◽  
Lithium Ion ◽  
Current Collector ◽  
Boron Nitride Nanotubes ◽  
Free Standing ◽  
Battery Design ◽  
The Stability ◽  
Double Wall

We report the stability and electronic structures of the double wall boron nitride nanotubes (DWBNNTs) due to interaction with anode lithium ion batteries (LIBs). Nano-Boron Nitride compounds have displayed great potential as anode materials for lithium ion batteries due to their unique structural, mechanical, and electrical properties. The measured reversible lithium ion capacities of SWBNTs//(Li)n//SWBNTs based anodes are considerably improved compared to the conventional graphite-based anodes. In this study (5, 5)@(7, 7) DWBNNTs, (5, 5)@(8, 8) DWBNNTs and (5, 5)@(9, 9) DWBNNTs have been localized inside the LIBs as an nano-capacitor to enhance electrochemical ratio of lithium ion capacities. Additionally, we have found the structure of (5, 5)@(8, 8) DWBNNTs can be to improve the capacity and electrical transport in anode-based LIBs. Therefore, the modification of cylindrical of BN and design of SWBNTs//(Li)n//SWBNTs structures provide strategies for improving the performance of material based anodes in LIBs. SWBNTs//(Li)n//SWBNTs could also be assembled into free-standing electrodes without any binder or current collector, which will lead to increased specific energy density for the overall battery design.

Heavy-Ion Damage to Magnesium Diboride Films: Electrical Transport-Current Characterization

2001 ◽  
Vol 689 ◽  
Author(s):  
H. R. Kerchner ◽  
C. Cantoni ◽  
M. Paranthaman ◽  
D. K. Christen ◽  
H. M. Christen ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electrical Transport ◽  
Large Scale ◽  
Magnesium Diboride ◽  
Superconducting Magnets ◽  
High Temperature Superconductors ◽  
Heavy Ion ◽  
Transport Current ◽  
Critical Temperatures ◽  
Higher Doses

ABSTRACTThe use of magnesium diboride in superconducting magnets, transmission lines, or other large-scale applications depends on the transport-current characteristics of this material in magnetic field, and how they compare to the properties of conventional and high-temperature superconductors. Thin films of boron grown on sapphire substrates during electron-beam evaporation were exposed to Mg vapor to produce 0.5-μm thick layers of the metallic compound MgB2. Four-terminal measurements of their voltagecurrent relations, E(J), were carried out before and after exposure to Bφ =1-T and higher doses of 1-Gev U ions. These doses lowered critical temperatures Tc≈39 K less than 0.1 degree, raised the normal-state resistivity, and reduced the loss-free critical current density, Jc. Higher doses added little. The reduction of current densities was greater in the presence of applied magnetic field greater than 0.1 T.

scholarly journals Graphene/(h-BN) n/X-doped graphene as anode material in lithium ion batteries (X=Li, Be, B and N)

2017 ◽  
Vol 36 (1) ◽  
pp. 101 ◽  
Author(s):  
Majid Monajjemi
Keyword(s):  
Energy Density ◽  
Boron Nitride ◽  
Lithium Ion Batteries ◽  
Electrical Transport ◽  
Lithium Ion ◽  
Current Collector ◽  
Free Standing ◽  
Specific Energy Density ◽  
Battery Design ◽  
Doped Graphene

Abstract: In this study Boron nitride sheet has been localized inside two X-graphene electrodes as an option to enhance the electrochemical ratio. Additionally, we have found the structure of X-G/(h-BN)n/X-G (N = 2–5) can improve the capacity and electrical transport in C-BN sheet-based LIBs. Therefore, the modification of BN sheets and design of X-G/ (h-BN)n/X-G structure provide strategies for improving the performance of BN-G-based anodes. X-G/(h-BN)n/X-G could also be assembled into free- standing electrodes without any binder or current collector, which will lead to increased specific energy density for the overall battery design. In this work the measured reversible lithium ion capacities of X-G//(h-BN)//X-G (X = Be, B, N) based anodes are considerably improved compared to the conventional graphite-based anodes

Study of segregation in La1.8Sr0.2CuO4 superconductor by STEM-EDS microanalysis

1987 ◽  
Vol 45 ◽  
pp. 54-55
Author(s):  
T. F. Kelly ◽  
P. J. Lee ◽  
E. E. Hellstrom ◽  
D. C. Larbalestier
Keyword(s):  
Rare Earth ◽  
High Field ◽  
Transport Current ◽  
Total Thickness ◽  
New Class ◽  
Ceramic Superconductors ◽  
Current Densities ◽  
Group Ii ◽  
Eds Microanalysis

Recently there has been much excitement over a new class of high Tc (>30 K) ceramic superconductors of the form A1-xBxCuO4-x, where A is a rare earth and B is from Group II. Unfortunately these materials have only been able to support small transport current densities 1-10 A/cm2. It is very desirable to increase these values by 2 to 3 orders of magnitude for useful high field applications. The reason for these small transport currents is as yet unknown. Evidence has, however, been presented for superconducting clusters on a 50-100 nm scale and on a 1-3 μm scale. We therefore planned a detailed TEM and STEM microanalysis study in order to see whether any evidence for the clusters could be seen.A La1.8Sr0.2Cu04 pellet was cut into 1 mm thick slices from which 3 mm discs were cut. The discs were subsequently mechanically ground to 100 μm total thickness and dimpled to 20 μm thickness at the center.

Sign in / Sign up

Export Citation Format

Share Document