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Your search keyword '"Wong, Dominica H. C."' showing total 14 results
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14 results on '"Wong, Dominica H. C."'

6. Compliant glass–polymer hybrid single ion-conducting electrolytes for lithium batteries

Author

Balsara, Nitash P., Tong, Wei, Villaluenga, Irune, Wujcik, Kevin H., Devaux, Didier, DeSimone, Joseph M., and Wong, Dominica H. C.

Abstract

This study describes hybrid single ion-conducting electrolytes based on inorganic sulfide glasses and perfluoropolyether polymers for lithium batteries. Herein, it is shown that hybrid electrolytes provide a compelling alternative to the traditional glass, ceramic, or polymer battery electrolytes. These electrolytes present high transference numbers, unprecedented ionic conductivities at room temperature, and excellent electrochemical stability, and they limit the dissolution of lithium polysulfides. The results in this work represent a significant step toward addressing the challenges of enabling the next generation cathodes, such as lithium nickel manganese cobalt oxide and sulfur.

Published
2016
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7. Nonflammable perfluoropolyether-based electrolytes for lithium batteries

Author

Thelen, Jacob L., Battaglia, Vincent S., Pandya, Ashish A., Devaux, Didier, Fu, Yanbao, Wong, Dominica H. C., DeSimone, Joseph M., and Balsara, Nitash P.

Subjects
Electrolytes, Fluorocarbons, Electric Power Supplies, Affordable and Clean Energy, Temperature, Transportation, Lithium, fluorinated polymers, nonflammable electrolytes, Ethers
Abstract

The flammability of conventional alkyl carbonate electrolytes hinders the integration of large-scale lithium-ion batteries in transportation and grid storage applications. In this study, we have prepared a unique nonflammable electrolyte composed of low molecular weight perfluoropolyethers and bis(trifluoromethane)sulfonimide lithium salt. These electrolytes exhibit thermal stability beyond 200 °C and a remarkably high transference number of at least 0.91 (more than double that of conventional electrolytes). Li/LiNi1/3Co1/3Mn1/3O2 cells made with this electrolyte show good performance in galvanostatic cycling, confirming their potential as rechargeable lithium batteries with enhanced safety and longevity.

Published
2014

9. Phase Behavior and Electrochemical Characterization of Blends of Perfluoropolyether, Poly(ethylene glycol), and a Lithium Salt

Author

Wong, Dominica H. C., primary, Vitale, Alessandra, additional, Devaux, Didier, additional, Taylor, Austria, additional, Pandya, Ashish A., additional, Hallinan, Daniel T., additional, Thelen, Jacob L., additional, Mecham, Sue J., additional, Lux, Simon F., additional, Lapides, Alexander M., additional, Resnick, Paul R., additional, Meyer, Thomas J., additional, Kostecki, Robert M., additional, Balsara, Nitash P., additional, and DeSimone, Joseph M., additional

Published
2015
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13. Phase Behavior and Electrochemical Characterizationof Blends of Perfluoropolyether, Poly(ethylene glycol), and a LithiumSalt.

Author

Wong, Dominica H. C., Vitale, Alessandra, Devaux, Didier, Taylor, Austria, Pandya, Ashish A., Hallinan, Daniel T., Thelen, Jacob L., Mecham, Sue J., Lux, Simon F., Lapides, Alexander M., Resnick, Paul R., Meyer, Thomas J., Kostecki, Robert M., Balsara, Nitash P., and DeSimone, Joseph M.

Subjects
*ELECTROCHEMISTRY, *POLYETHYLENE glycol, *LITHIUM compounds, *POLYETHERS, *GLASS transition temperature
Abstract

Electrolytesconsisting of low molecular weight perfluoropolyether(PFPE), poly(ethylene glycol) (PEG), and lithium bis(trifluoromethanesulfonyl)imide(LiTFSI) blends were prepared and systematically studied for saltconcentration and stoichiometry effects on the materials’ thermaland electrochemical properties. Herein we report that the tunableratios of PFPE and PEG allow for precise control of crystalline meltingand glass transition temperature properties. These blended liquidpolymer electrolytes are inherently nonflammable and remain stablein the amorphous phase from approximately 150 °C down to −85°C. The ionic conductivity of the electrolytes are on the orderof 10–4S/cm at 30 °C, which makes them suitablefor rechargeable lithium batteries. [ABSTRACT FROM AUTHOR]

Published
2015
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14. Future of the particle replication in nonwetting templates (PRINT) technology.

Author

Xu J, Wong DH, Byrne JD, Chen K, Bowerman C, and DeSimone JM

Subjects
Biopharmaceutics methods, Drug Design, Electromagnetic Fields, Electronics, Humans, Materials Testing, Particle Size, Prodrugs chemical synthesis, RNA, Small Interfering metabolism, Surface Properties, Nanomedicine methods, Nanoparticles chemistry, Nanotechnology methods
Abstract

Particle replication in nonwetting templates (PRINT) is a continuous, roll-to-roll, high-resolution molding technology which allows the design and synthesis of precisely defined micro- and nanoparticles. This technology adapts the lithographic techniques from the microelectronics industry and marries these with the roll-to-roll processes from the photographic film industry to enable researchers to have unprecedented control over particle size, shape, chemical composition, cargo, modulus, and surface properties. In addition, PRINT is a GMP-compliant (GMP=good manufacturing practice) platform amenable for particle fabrication on a large scale. Herein, we describe some of our most recent work involving the PRINT technology for application in the biomedical and material sciences., (Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Published
2013
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