Energy Conversion Devices

Energy Conversion Devices
Energy Conversion Devices, Inc.
Type Public
Industry Alternative energy
Founded 1982
Founder(s) Stanford R. Ovshinsky
Headquarters Auburn Hills, Michigan, USA
Revenue increase US$316 million (FY 2009)[1]
Operating income increase US$28.2 million (FY 2009)[1]
Net income increase US$12.5 Million (FY 2009)[1]
Total assets increase US$1.07 billion (FY 2009)[2]
Total equity increase US$662 million (FY 2009)[2]

Energy Conversion Devices (NASDAQENER) is headquartered in Rochester Hills, Michigan.

United Solar Ovonic, LLC (also called Uni-Solar) is its wholly owned subsidiary located in Auburn Hills, Michigan. Ovonics (coined from "Ovshinsky" and "electronics") is a field of electronics that uses materials able to change from an electrically nonconducting state to a semiconducting state shown by glass of special composition upon application of a certain minimum voltage. The most important example is phase change memory.

Scientist-entrepreneur Stanford R. Ovshinsky pioneered the field and coined the term after he founded Energy Conversion Devices, Inc. (ECD) in 1960 to further his research in amorphous semiconductors. ECD Ovonics works to create non-polluting, non-climate-changing energy sources.

  • Founded as Ovonics Battery Company in 1982.
  • Invented and patented the NiMH battery.
  • Current projects include NiMH, solid-state hydrogen fuel storage, regenerative fuel cells, and solar (UNI-SOLAR roof shingles).
  • Founder Stanford Ovshinsky was honored as "Hero for the planet" by Time Magazine in 1999, and inducted into the U.S.-based Solar Energy Hall of Fame in 2005.[1]
  • ECD Ovonics stock is listed on the NASDAQ with symbol ENER and on the Frankfurt Stock Exchange.


Company structure

ECD Ovonics is divided into three parts, and has full or partial ownership of several other companies.[3]

  • Energy Generation
    • United Solar Ovonic Corp (100% owned): flexible photovoltaic laminates
    • Ovonic Fuel Cell Company LLC (100% owned)
  • Energy Storage
    • Ovonic Hydrogen Systems LLC (100% owned)
    • Ovonic Battery Company (91.4% owned by ECD, 8.6% Honda, Sanyo and Sanoh)
      • Rare Earth Ovonic Inner Mongolia (19% owned by Ovonic Battery, 50% by Chevron)
      • Cobasys (50% owned by Ovonic Battery)
  • Information Technology
    • Ovonic Media (100% owned)
    • Ovonyx Inc. (39.5% owned by ECD)
      • Ovonic Cognitive Computer (95% owned by ECD, 5% by Ovonyx)

United Solar Ovonic Corporation

The United Solar Ovonic Corporation is the world's largest (2008) manufacturer of photovoltaic laminates. In the broader category of thin film solar cells, as of 2007 the company was the second-largest U.S. manufacturer, after First Solar.[4] The solar cells are made of 11 triple junction amorphous silicon solar cells connected in series and have 6–7% in conversion efficiency.[5] The laminate encapsulation material is durable ETFE high light-transmissive polymer. The laminates are sold under the trademark "UNI-SOLAR".

Manufacturing and global headquarters are in Auburn Hills, Michigan.

Much of the production is sold to manufacturers and suppliers of building envelope elements, such as metal roofs (Rheinzink, Corus "Kalzip") or polymer roof membranes (Alwitra, Solar Integrated technologies).[6]

Ovonic batteries

Ovonic NiMH batteries were used in the 1998 Chevrolet S-10 EV and the 1999 General Motors EV1, as well as many other hybrid vehicles in production today.

Patent encumbrance

In 1994, General Motors acquired a controlling interest in Ovonics's battery development and manufacturing, including patents controlling the manufacturing of large nickel metal hydride (NiMH) batteries. On October 10, 2001, Texaco purchased General Motors' share in GM Ovonics, and Chevron completed its acquisition of Texaco six days later. In 2003, Texaco Ovonics Battery Systems was restructured into Cobasys, a 50/50 joint venture between Chevron and Energy Conversion Devices (ECD) Ovonics.[7]

In her book, Plug-in Hybrids: The Cars that Will Recharge America, published in February 2007, Sherry Boschert argues that large-format NiMH batteries are commercially viable but that Cobasys refuses to sell or license them to small companies or individuals. Boschert reveals that Cobasys accepts only very large orders for these batteries. When Boschert conducted her research, major auto makers showed little interest in NiMH batteries. Since no other companies were capable of producing large orders, Cobasys was not manufacturing any NiMH batteries for automotive purposes.[8]

In December 2006, Cobasys and General Motors announced that they had signed a contract under which Cobasys would provide NiMH batteries for the Saturn Aura hybrid sedan.[9] Although announced, the car was later scrapped and Saturn has been shut down. In March 2007, General Motors announced that it would use Cobasys NiMH batteries in the 2008 Chevrolet Malibu hybrid as well. Cobasys remains unwilling to produce and sell NiMH batteries in smaller quantities to individuals interested in building or retrofitting their own plug-in hybrid electric vehicles (PHEVs). In 2009 Mercedes had planned to release an ML450 hybrid SUV in the United States, but Chevron, the parent company, pulled funding from Cobasys and the batteries were not delivered.[10] On July 14, 2009 Cobasys was bought by Samsung-Bosch.[11] Although mistaken as owning the intellectual property to the large NiMH battery packs, according to CEO Tom Neslage they merely have an exclusive licensing deal with Chevron.[12]

References and notes

External links

Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Energy Conversion Devices, Inc. — Energy Conversion Devices (NASDAQ: ENER) is headquarted in Rochester Hills, Michigan. United Solar Ovonic, LLC is its wholly owned subsidiary located in Auburn Hills, Michigan. Ovonics (coined from Ovshinsky and electronics ) is a field of… …   Wikipedia

  • energy conversion — ▪ technology Introduction       the transformation of energy from forms provided by nature to forms that can be used by humans.       Over the centuries a wide array of devices and systems has been developed for this purpose. Some of these energy …   Universalium

  • Energy conversion efficiency — Output energy is always lower than input energy …   Wikipedia

  • Energy harvesting — (also known as Power harvesting or energy scavenging ) is the process by which energy is captured and stored. Frequently this term is applied when speaking about small autonomous devices, like those used in sensor networks. A variety of different …   Wikipedia

  • Energy storage — is the storing of some form of energy that can be drawn upon at a later time to perform some useful operation. A device that stores energy is sometimes called an accumulator. All forms of energy are either potential energy (eg. chemical,… …   Wikipedia

  • Energy density — For energy density in the sense of energy per unit mass, see specific energy. For energy density of foods, see specific energy. Energy density is a term used for the amount of energy stored in a given system or region of space per unit volume.… …   Wikipedia

  • energy — /en euhr jee/, n., pl. energies. 1. the capacity for vigorous activity; available power: I eat chocolate to get quick energy. 2. an adequate or abundant amount of such power: I seem to have no energy these days. 3. Often, energies. a feeling of… …   Universalium

  • Conversion of units — is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors. Contents 1 Techniques 1.1 Process 1.2 Multiplication factors …   Wikipedia

  • Solar energy — is the light and radiant heat from the Sun that powers Earth s climate and weather and sustains life. Since ancient times it has been harnessed for human use through a range of technologies. Solar radiation along with secondary solar resources… …   Wikipedia

  • Mechanical energy — An example of a mechanical system: A satellite is orbiting the Earth only influenced by the conservative gravitational force and the mechanical energy is therefore conserved. The satellite is accelerated towards the Earth with an acceleration… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”