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http://techon.nikkeibp.co.jp/english/NEWS_EN/20100113/179223/
Hitachi Ltd and Hitachi Vehicle Energy Ltd developed a lithium-ion battery cell that has a high energy density and a high output density for plug-in hybrid electric vehicles (PHEVs).
The energy density and output density of the new battery cell are 120Wh/kg and 2,400W/kg (SOC: 50%), respectively. While the output density is equivalent to that of an existing battery cell that the companies are producing in volume for hybrid electric vehicles (HEVs), the energy density is about twice as high.
The new battery cell measures 146 x 110 x 30mm and weighs 0.75kg. Its average voltage is 3.6V. Though the companies did not disclose the details, the positive and negative electrodes contain oxide including a manganese substance and a carbon material, respectively. They have already made a test production line and plan to ship samples to automakers in the spring of 2010.
Hitachi Vehicle Energy has been developing battery cells mainly for HEVs. The company defines the cylindrical cell that it is now mass-producing as the second-generation product.
Also, it plans to produce 300,000 units of the third-generation product per month for General Motors Corp's mild hybrid vehicles and other vehicles in 2010. The third-generation product is a cylindrical cell that is 40mm in diameter and 92mm in length. Its current capacity, average voltage and output density are 4.4Ah, 3.6V and 3,000W/kg, respectively.
Furthermore, Hitachi Vehicle Energy has already developed the fourth-generation product, whose output density (4,500W/kg) is 1.5 times higher than that of the third-generation product and started shipping samples in the autumn of 2009. The fourth-generation product is an angular cell that has a high cooling performance. And its positive and negative electrodes are made by using a manganese substance and amorphous carbon (See related article).
Kouji Kariatsumari, Nikkei Electronics
The lithium-ion battery cell for plug-in hybrid electric vehicles. Its capacity is 25Ah.
Hitachi Ltd and Hitachi Vehicle Energy Ltd developed a lithium-ion battery cell that has a high energy density and a high output density for plug-in hybrid electric vehicles (PHEVs).
The energy density and output density of the new battery cell are 120Wh/kg and 2,400W/kg (SOC: 50%), respectively. While the output density is equivalent to that of an existing battery cell that the companies are producing in volume for hybrid electric vehicles (HEVs), the energy density is about twice as high.
The new battery cell measures 146 x 110 x 30mm and weighs 0.75kg. Its average voltage is 3.6V. Though the companies did not disclose the details, the positive and negative electrodes contain oxide including a manganese substance and a carbon material, respectively. They have already made a test production line and plan to ship samples to automakers in the spring of 2010.
Hitachi Vehicle Energy has been developing battery cells mainly for HEVs. The company defines the cylindrical cell that it is now mass-producing as the second-generation product.
Also, it plans to produce 300,000 units of the third-generation product per month for General Motors Corp's mild hybrid vehicles and other vehicles in 2010. The third-generation product is a cylindrical cell that is 40mm in diameter and 92mm in length. Its current capacity, average voltage and output density are 4.4Ah, 3.6V and 3,000W/kg, respectively.
Furthermore, Hitachi Vehicle Energy has already developed the fourth-generation product, whose output density (4,500W/kg) is 1.5 times higher than that of the third-generation product and started shipping samples in the autumn of 2009. The fourth-generation product is an angular cell that has a high cooling performance. And its positive and negative electrodes are made by using a manganese substance and amorphous carbon (See related article).
Kouji Kariatsumari, Nikkei Electronics
The lithium-ion battery cell for plug-in hybrid electric vehicles. Its capacity is 25Ah.
