The Experts below are selected from a list of 288 Experts worldwide ranked by ideXlab platform
Srinivasan Venkatesan - One of the best experts on this subject based on the ideXlab platform.
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Nickel-Metal Hydride Electric Vehicle Batteries Through Materials Science Advances
MRS Proceedings, 2011Co-Authors: Srinivasan Venkatesan, M.a. Fetcenko, P.r. Gifford, S.k. Dhar, Dennis A. Corrigan, S. OvshinskyAbstract:Proprietary, multicomponent hydrogen storage materials have been developed making use of the principles of disorder by atomic engineering of the short-range and intermediate-range order. These materials form the basis for Ovonic Nickel-Metal Hydride batteries which have emerged as the leading battery technology for electric vehicle applications. Ovonic Batteries have the highest volumetric energy density available extending the practical range of electric vehicles from under 100 miles to over 200 miles.
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development of advanced nickel metal hydride batteries for electric and hybrid vehicles
Journal of Power Sources, 1999Co-Authors: P.r. Gifford, Dennis A. Corrigan, John Adams, Srinivasan VenkatesanAbstract:Abstract Nickel/metal hydride (Ni/MH) batteries have emerged as the battery technology of choice for electric vehicles. GM Ovonic L.L.C., a joint venture between General Motors and Ovonic Battery was established in 1994 to manufacture and commercialize Ovonic's proprietary Ni/MH batteries for electric and hybrid vehicle applications. GM Ovonic is developing a `family of batteries' aimed at product improvement and cost reduction. Current performance of these new battery designs is described, as well as projections for future improvements. In addition, advances in cell and battery power have allowed further product diversification into cells and batteries specifically designed for a range of hybrid electric vehicles (HEVs).
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Development of advanced nickel/metal hydride batteries for electric and hybrid vehicles
Journal of Power Sources, 1999Co-Authors: Paul Gifford, Dennis Corrigan, John Adams, Srinivasan VenkatesanAbstract:Nickel/metal hydride (Ni/MH) batteries have emerged as the battery technology of choice for electric vehicles. GM Ovonic L.L.C., a joint venture between General Motors and Ovonic Battery was established in 1994 to manufacture and commercialize Ovonic's proprietary Ni/MH batteries for electric and hybrid vehicle applications. GM Ovonic is developing a `family of batteries' aimed at product improvement and cost reduction. Current performance of these new battery designs is described, as well as projections for future improvements. In addition, advances in cell and battery power have allowed further product diversification into cells and batteries specifically designed for a range of hybrid electric vehicles (HEVs).
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Advanced materials for next generation NiMH portable, HEV and EV batteries
IEEE Aerospace and Electronic Systems Magazine, 1999Co-Authors: S. Ovshinsky, M.a. Fetcenko, Srinivasan Venkatesan, P.r. Gifford, S.k. Dhar, Dennis A. Corrigan, Benjamin Reichman, Kwo Young, C. Fierro, J. KochAbstract:While Ovonic NiMH batteries are already in high volume commercial production for portable applications, advances in materials technology have enabled performance improvements in specific energy (100 Wh/kg), specific power (600-1000 W/kg), high temperature operation, charge retention, and voltage stability. Concurrent with technology advances, Ovonic NiMH batteries have established performance and commercial milestones in electric vehicles, hybrid electric vehicles, as well as scooter, motorcycle and bicycle applications. As important as these advances, significant manufacturing cost reductions have also occurred which allow continued growth of NiMH technology. In this paper, advances in performance, applications and cost reduction are discussed with particular emphasis on the improved proprietary metal hydride and nickel hydroxide materials that make such advances possible.
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Advanced Ovonic high-power nickel-metal hydride batteries for hybrid electric vehicle applications
Thirteenth Annual Battery Conference on Applications and Advances. Proceedings of the Conference, 1998Co-Authors: I. Menjak, Srinivasan Venkatesan, S.k. Dhar, Dennis A. Corrigan, Robert C Stempel, S. OvshinskyAbstract:In response to intense development of hybrid electric vehicles throughout the world spurred by energy and environmental concerns, Ovonic Battery Company has developed a series of high power batteries suitable for a range of vehicle design concepts. We have developed a 60 Ah HEV battery with a power capability of 620 W/kg and 1700 W/L. This high power capability was achieved without tradeoffs in energy density. With a specific energy of 70 Wh/kg, this battery is especially attractive for high energy applications such as the range-extender hybrid vehicle. We have also developed 20 and 30 Ah battery designs for lower energy applications that require a higher power-to-energy ratio such as the charge-sustaining power-assist vehicle. Ovonic Ni-MH batteries exhibit an excellent acceptance of regenerative brake energy, highly superior to that exhibited by high power lead-acid batteries. These properties together with a high voltaic and coulombic efficiency make Ovonic batteries the technology of choice for the diverse variety of HEVs under development. These batteries retain the excellent cycle life characteristics of the Ni-MH EV battery. They are maintenance-free, do not contain toxic heavy metals, and can be 100% recycled.
S. Ovshinsky - One of the best experts on this subject based on the ideXlab platform.
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New Transformative Possibilities for Ovonic Devices
arXiv: General Physics, 2011Co-Authors: S. OvshinskyAbstract:The Ovonic Phase Change Memory is critical in the quest to meet the increasing commercial needs for new information systems. The important paper of DerChang Kau et al. [1], describing a stackable cross point phase change memory, resulting in a three dimensional device which includes the Ovonic Threshold Switch, therefore permits a significant expansion of our field. I will propose and show that our basic science allows for other transformative changes that combine both threshold and phase change mechanisms in a single device. The mechanisms that I will describe have already been proven. My aim is to provide the understanding of these mechanisms so that new devices based on them can become important components that illustrate the great potential of our field. I know of no better place to give this kind of talk than Italy where I have had some of my happiest memories of working together with Roberto Bez and his wonderful colleagues and collaborators.
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Nickel-Metal Hydride Electric Vehicle Batteries Through Materials Science Advances
MRS Proceedings, 2011Co-Authors: Srinivasan Venkatesan, M.a. Fetcenko, P.r. Gifford, S.k. Dhar, Dennis A. Corrigan, S. OvshinskyAbstract:Proprietary, multicomponent hydrogen storage materials have been developed making use of the principles of disorder by atomic engineering of the short-range and intermediate-range order. These materials form the basis for Ovonic Nickel-Metal Hydride batteries which have emerged as the leading battery technology for electric vehicle applications. Ovonic Batteries have the highest volumetric energy density available extending the practical range of electric vehicles from under 100 miles to over 200 miles.
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Ovonic chalcogenide non-binary electrical and optical devices
Seventh International Symposium on Optical Storage, 2005Co-Authors: S. OvshinskyAbstract:Paul Davies, a highly respected theoretical physicist recently stated that "the essence of life is information." 1 I will describe how the essence of information is plasticity, that information is encoded energy requiring what neurophysiologists call plasticity. Plasticity is the ability of neurons through their synapses to have memory, learn, adapt and evolve in response to their environment. I will show that Ovonic memories, both optical and electrical, have rich and deep new physics that make them cognitive devices and therefore open up a huge new field of chalcogenide-based intelligent computers, intelligence that works in a similar manner to the brain. We have shown that the plasticity necessary for an intelligent opto-electronic computer is a function of energy pulses, whether electrical or optical.
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optical cognitive information processing a new field
Japanese Journal of Applied Physics, 2004Co-Authors: S. OvshinskyAbstract:I will discuss unique electronic and structural mechanisms of Ovonic optical phase-change devices making possible orders of magnitude increase of density of memory and introducing multiple information functions in a single nanostructure spot.
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A Hydrogen ICE Vehicle Powered by Ovonic Metal Hydride Storage
SAE Technical Paper Series, 2004Co-Authors: Rosa Chiang Young, B.s. Chao, Vitaliy Myasnikov, B. Huang, S. OvshinskyAbstract:Among the various alternative fuels, hydrogen is the only fuel, which is clean and sustainable. More importantly, if hydrogen is produced from renewable resources, virtually no CO 2 emissions are produced. Texaco Ovonic Hydrogen Systems (TOHS) has converted a gasoline internal combustion engine (ICE) hybrid vehicle to a hydrogen vehicle using its advanced metal hydride storage. Compared to its gasoline counterpart, the converted vehiole demonstrated a reduction in CO 2 tailpipe emission of 220 grams per mile. Ovonic metal hydride hydrogen storage systems consist of three critical elements: (1) an advanced metal hydride alloy, (2) an efficient heat exchanger and (3) a lightweight fiber wrapped pressure container. A 50 liter Ovonic metal hydride storage vessel installed in the vehicle provides a storage capacity of 3 kg hydrogen and a driving range of 130-150 miles.
P.r. Gifford - One of the best experts on this subject based on the ideXlab platform.
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Nickel-Metal Hydride Electric Vehicle Batteries Through Materials Science Advances
MRS Proceedings, 2011Co-Authors: Srinivasan Venkatesan, M.a. Fetcenko, P.r. Gifford, S.k. Dhar, Dennis A. Corrigan, S. OvshinskyAbstract:Proprietary, multicomponent hydrogen storage materials have been developed making use of the principles of disorder by atomic engineering of the short-range and intermediate-range order. These materials form the basis for Ovonic Nickel-Metal Hydride batteries which have emerged as the leading battery technology for electric vehicle applications. Ovonic Batteries have the highest volumetric energy density available extending the practical range of electric vehicles from under 100 miles to over 200 miles.
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development of advanced nickel metal hydride batteries for electric and hybrid vehicles
Journal of Power Sources, 1999Co-Authors: P.r. Gifford, Dennis A. Corrigan, John Adams, Srinivasan VenkatesanAbstract:Abstract Nickel/metal hydride (Ni/MH) batteries have emerged as the battery technology of choice for electric vehicles. GM Ovonic L.L.C., a joint venture between General Motors and Ovonic Battery was established in 1994 to manufacture and commercialize Ovonic's proprietary Ni/MH batteries for electric and hybrid vehicle applications. GM Ovonic is developing a `family of batteries' aimed at product improvement and cost reduction. Current performance of these new battery designs is described, as well as projections for future improvements. In addition, advances in cell and battery power have allowed further product diversification into cells and batteries specifically designed for a range of hybrid electric vehicles (HEVs).
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Advanced materials for next generation NiMH portable, HEV and EV batteries
IEEE Aerospace and Electronic Systems Magazine, 1999Co-Authors: S. Ovshinsky, M.a. Fetcenko, Srinivasan Venkatesan, P.r. Gifford, S.k. Dhar, Dennis A. Corrigan, Benjamin Reichman, Kwo Young, C. Fierro, J. KochAbstract:While Ovonic NiMH batteries are already in high volume commercial production for portable applications, advances in materials technology have enabled performance improvements in specific energy (100 Wh/kg), specific power (600-1000 W/kg), high temperature operation, charge retention, and voltage stability. Concurrent with technology advances, Ovonic NiMH batteries have established performance and commercial milestones in electric vehicles, hybrid electric vehicles, as well as scooter, motorcycle and bicycle applications. As important as these advances, significant manufacturing cost reductions have also occurred which allow continued growth of NiMH technology. In this paper, advances in performance, applications and cost reduction are discussed with particular emphasis on the improved proprietary metal hydride and nickel hydroxide materials that make such advances possible.
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Nickel/metal hydride technology for consumer and electric vehicle batteries : a review and up-date
Journal of Power Sources, 1997Co-Authors: S.k. Dhar, M.a. Fetcenko, S. Ovshinsky, P.r. Gifford, Dennis A. Corrigan, Srinivasan VenkatesanAbstract:Abstract Nickel/metal hydride batteries today represent the fastest growing market segment for rechargeable batteries due to the high energy density and more environmentally acceptable chemistry offered by this technology. The high energy density of nickel/metal hydride batteries coupled with high power density and long cycle life make this battery chemistry a key enabling technology for practical electric vehicles, including cars, vans, trucks, and other forms of transportation such as scooters, bicycles, and three-wheelers. This paper provides a review of Ovonic technology and up-dates recent developments in materials and cell development for both consumer electronic and EV applications, and highlights areas for future development.
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Advances in Ovonic nickel metal hydride batteries for electric and hybrid vehicles
1994Co-Authors: P.r. Gifford, Srinivasan Venkatesan, S.k. Dhar, Dennis A. Corrigan, Fetcenko, Arthur Holland, S. OvshinskyAbstract:Electric vehicle (EV) technology has been limited by the availability of suitable battery technology to provide the required vehicle range and performance at acceptable cost. Ovonic Battery Co. has developed a proprietary nickel metal hydride battery that provides the required advances in battery technology. This technology is based on the application of multi-element, multi-phase hydride alloys developed for use as negative electrode materials. Ovonic batteries have demonstrated high energy and power density, long cycle life, excellent overcharge and overdischarge tolerance, and wide operating temperature range. An overview of cell and battery performance is presented as well as results discussed for EVs powered by Ovonic batteries. 20 refs.
Dennis A. Corrigan - One of the best experts on this subject based on the ideXlab platform.
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Nickel-Metal Hydride Electric Vehicle Batteries Through Materials Science Advances
MRS Proceedings, 2011Co-Authors: Srinivasan Venkatesan, M.a. Fetcenko, P.r. Gifford, S.k. Dhar, Dennis A. Corrigan, S. OvshinskyAbstract:Proprietary, multicomponent hydrogen storage materials have been developed making use of the principles of disorder by atomic engineering of the short-range and intermediate-range order. These materials form the basis for Ovonic Nickel-Metal Hydride batteries which have emerged as the leading battery technology for electric vehicle applications. Ovonic Batteries have the highest volumetric energy density available extending the practical range of electric vehicles from under 100 miles to over 200 miles.
-
development of advanced nickel metal hydride batteries for electric and hybrid vehicles
Journal of Power Sources, 1999Co-Authors: P.r. Gifford, Dennis A. Corrigan, John Adams, Srinivasan VenkatesanAbstract:Abstract Nickel/metal hydride (Ni/MH) batteries have emerged as the battery technology of choice for electric vehicles. GM Ovonic L.L.C., a joint venture between General Motors and Ovonic Battery was established in 1994 to manufacture and commercialize Ovonic's proprietary Ni/MH batteries for electric and hybrid vehicle applications. GM Ovonic is developing a `family of batteries' aimed at product improvement and cost reduction. Current performance of these new battery designs is described, as well as projections for future improvements. In addition, advances in cell and battery power have allowed further product diversification into cells and batteries specifically designed for a range of hybrid electric vehicles (HEVs).
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Advanced materials for next generation NiMH portable, HEV and EV batteries
IEEE Aerospace and Electronic Systems Magazine, 1999Co-Authors: S. Ovshinsky, M.a. Fetcenko, Srinivasan Venkatesan, P.r. Gifford, S.k. Dhar, Dennis A. Corrigan, Benjamin Reichman, Kwo Young, C. Fierro, J. KochAbstract:While Ovonic NiMH batteries are already in high volume commercial production for portable applications, advances in materials technology have enabled performance improvements in specific energy (100 Wh/kg), specific power (600-1000 W/kg), high temperature operation, charge retention, and voltage stability. Concurrent with technology advances, Ovonic NiMH batteries have established performance and commercial milestones in electric vehicles, hybrid electric vehicles, as well as scooter, motorcycle and bicycle applications. As important as these advances, significant manufacturing cost reductions have also occurred which allow continued growth of NiMH technology. In this paper, advances in performance, applications and cost reduction are discussed with particular emphasis on the improved proprietary metal hydride and nickel hydroxide materials that make such advances possible.
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Advanced Ovonic high-power nickel-metal hydride batteries for hybrid electric vehicle applications
Thirteenth Annual Battery Conference on Applications and Advances. Proceedings of the Conference, 1998Co-Authors: I. Menjak, Srinivasan Venkatesan, S.k. Dhar, Dennis A. Corrigan, Robert C Stempel, S. OvshinskyAbstract:In response to intense development of hybrid electric vehicles throughout the world spurred by energy and environmental concerns, Ovonic Battery Company has developed a series of high power batteries suitable for a range of vehicle design concepts. We have developed a 60 Ah HEV battery with a power capability of 620 W/kg and 1700 W/L. This high power capability was achieved without tradeoffs in energy density. With a specific energy of 70 Wh/kg, this battery is especially attractive for high energy applications such as the range-extender hybrid vehicle. We have also developed 20 and 30 Ah battery designs for lower energy applications that require a higher power-to-energy ratio such as the charge-sustaining power-assist vehicle. Ovonic Ni-MH batteries exhibit an excellent acceptance of regenerative brake energy, highly superior to that exhibited by high power lead-acid batteries. These properties together with a high voltaic and coulombic efficiency make Ovonic batteries the technology of choice for the diverse variety of HEVs under development. These batteries retain the excellent cycle life characteristics of the Ni-MH EV battery. They are maintenance-free, do not contain toxic heavy metals, and can be 100% recycled.
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Nickel/metal hydride technology for consumer and electric vehicle batteries : a review and up-date
Journal of Power Sources, 1997Co-Authors: S.k. Dhar, M.a. Fetcenko, S. Ovshinsky, P.r. Gifford, Dennis A. Corrigan, Srinivasan VenkatesanAbstract:Abstract Nickel/metal hydride batteries today represent the fastest growing market segment for rechargeable batteries due to the high energy density and more environmentally acceptable chemistry offered by this technology. The high energy density of nickel/metal hydride batteries coupled with high power density and long cycle life make this battery chemistry a key enabling technology for practical electric vehicles, including cars, vans, trucks, and other forms of transportation such as scooters, bicycles, and three-wheelers. This paper provides a review of Ovonic technology and up-dates recent developments in materials and cell development for both consumer electronic and EV applications, and highlights areas for future development.
S.k. Dhar - One of the best experts on this subject based on the ideXlab platform.
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Nickel-Metal Hydride Electric Vehicle Batteries Through Materials Science Advances
MRS Proceedings, 2011Co-Authors: Srinivasan Venkatesan, M.a. Fetcenko, P.r. Gifford, S.k. Dhar, Dennis A. Corrigan, S. OvshinskyAbstract:Proprietary, multicomponent hydrogen storage materials have been developed making use of the principles of disorder by atomic engineering of the short-range and intermediate-range order. These materials form the basis for Ovonic Nickel-Metal Hydride batteries which have emerged as the leading battery technology for electric vehicle applications. Ovonic Batteries have the highest volumetric energy density available extending the practical range of electric vehicles from under 100 miles to over 200 miles.
-
Advanced materials for next generation NiMH portable, HEV and EV batteries
IEEE Aerospace and Electronic Systems Magazine, 1999Co-Authors: S. Ovshinsky, M.a. Fetcenko, Srinivasan Venkatesan, P.r. Gifford, S.k. Dhar, Dennis A. Corrigan, Benjamin Reichman, Kwo Young, C. Fierro, J. KochAbstract:While Ovonic NiMH batteries are already in high volume commercial production for portable applications, advances in materials technology have enabled performance improvements in specific energy (100 Wh/kg), specific power (600-1000 W/kg), high temperature operation, charge retention, and voltage stability. Concurrent with technology advances, Ovonic NiMH batteries have established performance and commercial milestones in electric vehicles, hybrid electric vehicles, as well as scooter, motorcycle and bicycle applications. As important as these advances, significant manufacturing cost reductions have also occurred which allow continued growth of NiMH technology. In this paper, advances in performance, applications and cost reduction are discussed with particular emphasis on the improved proprietary metal hydride and nickel hydroxide materials that make such advances possible.
-
Advanced Ovonic high-power nickel-metal hydride batteries for hybrid electric vehicle applications
Thirteenth Annual Battery Conference on Applications and Advances. Proceedings of the Conference, 1998Co-Authors: I. Menjak, Srinivasan Venkatesan, S.k. Dhar, Dennis A. Corrigan, Robert C Stempel, S. OvshinskyAbstract:In response to intense development of hybrid electric vehicles throughout the world spurred by energy and environmental concerns, Ovonic Battery Company has developed a series of high power batteries suitable for a range of vehicle design concepts. We have developed a 60 Ah HEV battery with a power capability of 620 W/kg and 1700 W/L. This high power capability was achieved without tradeoffs in energy density. With a specific energy of 70 Wh/kg, this battery is especially attractive for high energy applications such as the range-extender hybrid vehicle. We have also developed 20 and 30 Ah battery designs for lower energy applications that require a higher power-to-energy ratio such as the charge-sustaining power-assist vehicle. Ovonic Ni-MH batteries exhibit an excellent acceptance of regenerative brake energy, highly superior to that exhibited by high power lead-acid batteries. These properties together with a high voltaic and coulombic efficiency make Ovonic batteries the technology of choice for the diverse variety of HEVs under development. These batteries retain the excellent cycle life characteristics of the Ni-MH EV battery. They are maintenance-free, do not contain toxic heavy metals, and can be 100% recycled.
-
Nickel/metal hydride technology for consumer and electric vehicle batteries : a review and up-date
Journal of Power Sources, 1997Co-Authors: S.k. Dhar, M.a. Fetcenko, S. Ovshinsky, P.r. Gifford, Dennis A. Corrigan, Srinivasan VenkatesanAbstract:Abstract Nickel/metal hydride batteries today represent the fastest growing market segment for rechargeable batteries due to the high energy density and more environmentally acceptable chemistry offered by this technology. The high energy density of nickel/metal hydride batteries coupled with high power density and long cycle life make this battery chemistry a key enabling technology for practical electric vehicles, including cars, vans, trucks, and other forms of transportation such as scooters, bicycles, and three-wheelers. This paper provides a review of Ovonic technology and up-dates recent developments in materials and cell development for both consumer electronic and EV applications, and highlights areas for future development.
-
Advances in Ovonic nickel metal hydride batteries for electric and hybrid vehicles
1994Co-Authors: P.r. Gifford, Srinivasan Venkatesan, S.k. Dhar, Dennis A. Corrigan, Fetcenko, Arthur Holland, S. OvshinskyAbstract:Electric vehicle (EV) technology has been limited by the availability of suitable battery technology to provide the required vehicle range and performance at acceptable cost. Ovonic Battery Co. has developed a proprietary nickel metal hydride battery that provides the required advances in battery technology. This technology is based on the application of multi-element, multi-phase hydride alloys developed for use as negative electrode materials. Ovonic batteries have demonstrated high energy and power density, long cycle life, excellent overcharge and overdischarge tolerance, and wide operating temperature range. An overview of cell and battery performance is presented as well as results discussed for EVs powered by Ovonic batteries. 20 refs.
