A Printable Metallic Current Collector for All‐Printed High‐Voltage Micro‐Supercapacitors: Instantaneous Surface Passivation by Flash‐Light‐Sintering Reaction

Surface/interface modification is developed to tune the electrolyte wettability of a carbon nanotube current collector for controlling the lithium ion diffusion and achieving high voltage foldable lithium-ion batteries.

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Suppression of Aluminum Current Collector Dissolution by Protective Ceramic Coatings for Better High-Voltage Battery Performance

ChemPhysChem ◽

10.1002/cphc.201601095 ◽

2016 ◽

Vol 18 (1) ◽

pp. 156-163 ◽

Cited By ~ 21

Author(s):

Andreas Heckmann ◽

Manuel Krott ◽

Benjamin Streipert ◽

Sven Uhlenbruck ◽

Martin Winter ◽

...

Keyword(s):

High Voltage ◽

Current Collector ◽

Ceramic Coatings ◽

High Voltage Battery

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Long Carrier Lifetimes in n-Type 4H-SiC Epilayers

Materials Science Forum ◽

10.4028/www.scientific.net/msf.717-720.279 ◽

2012 ◽

Vol 717-720 ◽

pp. 279-284 ◽

Cited By ~ 7

Author(s):

Paul B. Klein

Keyword(s):

Solid State ◽

High Voltage ◽

High Power ◽

Surface Passivation ◽

Surface Recombination ◽

Carrier Lifetimes ◽

State Switching ◽

Long Lifetime ◽

Very High ◽

Thick Layers

Recent advances in preparing n-type 4H-SiC with long carrier lifetimes have greatly enhanced the possibility of realizing commercially available, very high voltage and high power solid state switching diodes. For the range > several kV, vertical bipolar structures are required with drift layers exhibiting carrier lifetimes ≥ several µsec. Recently, low-doped epilayers with carrier lifetimes in excess of this have been demonstrated, thus approaching a goal that has been pursued for over a decade. Historically, the short lifetimes in early epitaxial layers (a few hundred nsec) were eventually identified with the Vc-related Z1/2 lifetime killer. Current strategies to minimize this defect are an essential ingredient in the procedure for obtaining long-lifetime material. In order to optimize the attainable lifetimes, it has been shown that in addition to low Z1/2 levels, very thick layers are required to minimize the effects of recombination in the substrate and surface passivation is also necessary to minimize surface recombination (S < 1000 cm/sec).

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Controlling side reactions and self-discharge in high-voltage spinel cathodes: the critical role of surface crystallographic facets

Physical Chemistry Chemical Physics ◽

10.1039/c5cp04899k ◽

2015 ◽

Vol 17 (39) ◽

pp. 26471-26481 ◽

Cited By ~ 27

Author(s):

Saravanan Kuppan ◽

Hugues Duncan ◽

Guoying Chen

Keyword(s):

High Voltage ◽

Surface Passivation ◽

Critical Role ◽

Side Reactions ◽

Crystallographic Facets

Reduced side reactions and self-discharge were observed on LMNO with (111) facets that promote surface passivation following initial cathode/electrolyte interactions.

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Ni–Al–Cr superalloy as high temperature cathode current collector for advanced thin film Li batteries

RSC Advances ◽

10.1039/c8ra02461h ◽

2018 ◽

Vol 8 (36) ◽

pp. 20304-20313 ◽

Cited By ~ 5

Author(s):

Alejandro N. Filippin ◽

Tzu-Ying Lin ◽

Michael Rawlence ◽

Tanja Zünd ◽

Kostiantyn Kravchyk ◽

...

Keyword(s):

Thin Film ◽

High Temperature ◽

High Voltage ◽

Current Collector ◽

Cathode Current ◽

Li Batteries ◽

Thin Film Li Batteries

A novel cathode current collector based on a Ni–Al–Cr superalloy is presented here. The suitability of this superalloy as a high voltage current collector was verified by crystallizing and cycling of LiCoO2 directly onto it.

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