Plasma and Ion Beam Tools for Enhanced Battery Electrode Performance

1996 ◽  
Vol 438 ◽  
Author(s):  
A. Anders ◽  
F. Kong ◽  
Y. Chen ◽  
O. R. Monteiro ◽  
F. R. McLarnon ◽  
...  
Keyword(s):  
Ion Implantation ◽  
Metal Ion ◽  
Ion Beam ◽  
Current Collector ◽  
Corrosion Current ◽  
Alkaline Electrolyte ◽  
Battery Electrode ◽  
Order Of Magnitude ◽  
Plasma Immersion Ion Implantation ◽  
Metal Ion Implantation

AbstractPlasma and ion beam methods such as gas and metal ion implantation, plasma immersion ion implantation (PIII), and metal plasma immersion ion implantation and deposition (MePIIID) are introduced as powerful tools to modify the properties of battery electrodes. Three kinds of rechargeable electrochemical cells have been investigated: the lead-acid cell, the nickel alkaline-electrolyte cell, and the lithium cell. It was experimentally shown that (i) metal ion implantation of Ti, V, Cr, Ni, and W into lead and lead-antimony electrodes reduced the corrosion current by more than one order of magnitude, (ii) cobalt ion implantation into nickel electrodes enhanced the interconversion of Ni(OH)2 to NiOOH and the associated cycle life, (iii) nitrogen-PIII resulted in the formation of a nitrided lithium layer on lithium which stabilized the surface against corrosion, (iv) MePIIID with a tungsten plasma reduced the pitting corrosion of aluminum, a current collector for a lithium battery.

scholarly journals Chemical Composition and Corrosion Behavior of a-C:H/DLC Film-Coated Titanium Substrate in Simulated PEMFC Environment

Coatings ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 820
Author(s):  
Beibei Han ◽  
Mengyuan Yan ◽  
Dongying Ju ◽  
Maorong Chai ◽  
Susumu Sato
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Behavior ◽  
Metal Ion ◽  
Ion Beam ◽  
Titanium Substrate ◽  
Corrosion Current ◽  
Ion Concentration ◽  
Bipolar Plates ◽  
High Adhesion ◽  
Corrosion Behaviors

The amorphous hydrogenated (a-C:H) film-coated titanium, using different CH4/H2 and deposition times, was prepared by the ion beam deposition (IBD) method, which has the advantage of high adhesion because of the graded interface mixes at the atomic level. The chemical characterizations and corrosion behaviors of a-C:H film were investigated and evaluated by SEM, AFM, Raman spectroscopy, EPMA, TEM and XPS. An a-C:H film-coated titanium was corroded at 0.8 V, 90 °C in a 0.5 mol/L H2SO4 solution for 168 h. The metal ion concentration in the H2SO4 corrosion solution and the potentiodynamic polarization behavior were evaluated. Results indicate that a higher CH4/H2 of 1:0 and a deposition time of 12 h can result in a minimum ID/IG ratio of 0.827, Ra of 5.76 nm, metal ion concentration of 0.34 ppm in the corrosion solution and a corrosion current of 0.23 µA/cm2. The current density in this work meets the DOE’s 2020 target of 1 µA/cm2. Electrical conductivity is inversely proportional to the corrosion resistance. The significant improvement in the corrosion resistance of the a-C:H film was mainly attributed to the increased sp3 element and nanocrystalline TiC phase in the penetration layer. As a result, the a-C:H film-coated titanium at CH4/H2 = 1:0 with improved anti-corrosion behavior creates a great potential for PEMFC bipolar plates.

Coloration of Quartz by Metal-Ion Implantation

1985 ◽  
Vol 24 (Part 1, No. 8) ◽  
pp. 1115-1116 ◽  
Author(s):  
Yukinori Saito ◽  
Hideo Kumagai ◽  
Shinji Suganomata
Keyword(s):  
Ion Implantation ◽  
Metal Ion ◽  
Metal Ion Implantation

scholarly journals A broad-beam, high-current metal-ion implantation facility

1991 ◽  
Vol 55 (1-4) ◽  
pp. 506-510 ◽  
Author(s):  
I.G. Brown ◽  
M.R. Dickinson ◽  
J.E. Galvin ◽  
X. Godechot ◽  
R.A. MacGill
Keyword(s):  
Ion Implantation ◽  
Metal Ion ◽  
High Current ◽  
Broad Beam ◽  
Metal Ion Implantation

Behaviour of MEVVA metal ion implantation for surface modification of materials

1996 ◽  
Vol 83 (1-3) ◽  
pp. 280-283 ◽  
Author(s):  
Tonghe Zhang ◽  
Xiaoyan Wang ◽  
Hong Liang ◽  
Huixing Zhang ◽  
Gu Zhou ◽  
...  
Keyword(s):  
Surface Modification ◽  
Ion Implantation ◽  
Metal Ion ◽  
Modification Of Materials ◽  
Metal Ion Implantation
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