Patent encumbrance of large automotive NiMH batteries
2011-07-14 10:56:58
Background
The modern nickel-metal hydride (NiMH) electric vehicle battery was invented by Dr. Masahiko Oshitani, of the GS Yuasa Corporation, and Stanford Ovshinsky, the founder of the Ovonics Battery Company. The current trend in the industry is towards the development of lithium-ion (Li-Ion) technology to replace NiMH in electric vehicles. Some manufacturers maintain that NiMH batteries are important to the commercialization of plug-in hybrid electric vehicles (PHEV)s and battery electric vehicles (BEVs) because Li-Ion technology, while functionally superior due to its higher specific energy and specific power, is prohibitively expensive and relatively untested with regards to its long-term reliability.
General Motors and the US Auto Battery Consortium
The Ovonics technology was acquired by General Motors for use in its EV1 electric car, but production was ended shortly after the NiMH batteries began to replace the lead-acid batteries of earli... [more]
The modern nickel-metal hydride (NiMH) electric vehicle battery was invented by Dr. Masahiko Oshitani, of the GS Yuasa Corporation, and Stanford Ovshinsky, the founder of the Ovonics Battery Company. The current trend in the industry is towards the development of lithium-ion (Li-Ion) technology to replace NiMH in electric vehicles. Some manufacturers maintain that NiMH batteries are important to the commercialization of plug-in hybrid electric vehicles (PHEV)s and battery electric vehicles (BEVs) because Li-Ion technology, while functionally superior due to its higher specific energy and specific power, is prohibitively expensive and relatively untested with regards to its long-term reliability.
General Motors and the US Auto Battery Consortium
The Ovonics technology was acquired by General Motors for use in its EV1 electric car, but production was ended shortly after the NiMH batteries began to replace the lead-acid batteries of earli... [more]
