Toyota January 22, 2010, with the Japan International Automotive Electronics Technology Exhibition “and” EV and HEV Drive System Technology Show (EV Japan) “(1 20 ~ 22, Tokyo Big Sight International Exhibition Center Organizer: RN873，GW240,Reed Exhibitions Japan), at the same time holding the technical seminar on the company’s lithium-ion rechargeable battery delivered a speech on the trend of development.
Toyota HV Materials Technology Department Minohara Hung-Min to “HV Toyota with its rechargeable batteries and development trends” in the title, first a brief presentation of the environmental agenda of the Toyota and nickel-metal hydride (Ni-MH) The situation of replacing the battery, and then focuses on the company’s lithium-ion battery development program of batteries.
Toyota Lithium-ion rechargeable battery was first applied to the “Yaris (Vitz)” without idling, from February 2003 to 2008 in December, a total of 4900 product group. The current monthly production of 60 ~ 100 groups. Each group consists of four unitary cells, the cell voltage of 3.6V, the current capacity of 12Ah, the power density 2250W/kg, the energy density of 74Wh/kg. Sony VGP-BPS2，Sony VGP-BPS2A
The company began in late 2009, the Prius plug-in hybrid is equipped with a hybrid car is being developed lithium-ion rechargeable battery. Although not open the battery of specific targets but said before the adoption of real vehicle is equipped with five sites around the world, paid a three-year evaluation test of endurance, has confirmed that no problem.
According to reports, the test is to use the test vehicle 150 in Japan, the United States, Canada, Germany and Spain, and the total travel distance of about 10.5 million km. Vehicles traveling from the farthest to travel to the United States had 57 million 4000 km. In addition, some vehicles is also expected that most of the time the parking situation, moving only a hundred km away. Toyota Minohara said that thanks to -30 ~ 40 ℃ ambient conditions of the test, “has finally been developed to meet all the requirements of lithium-ion rechargeable battery.” Battery deterioration Minohara also said: “We had a period of three years, over 500,000 km of road to the internal resistance of the evaluation to determine the final outcome of the battery compared to the initial value has changed little. ” PA3399U-1BAS，PA3399U-2BAS
Regarding future plans for the automotive industry, Toyota is currently working with to reduce costs and develop the cars, while also considering a new generation of electric cars and vehicles for personal mobility, used. Among them, the battery electric vehicle aims for mass production around 2012. Society to consider a two-stage development of batteries, “First of all understand the limits of existing technology, then reaching the final shape of the battery, in-depth field of scientific research beyond the limits existing technologies. “blog