Reducing greenhouse gas emissions and fossil fuel consumption in the transport sector is a major problem for governments world-wide. In Europe, for example, various governments demand automakers to decrease CO2 emissions from the current value of about 140 g for every 1 km driven to 95 g by 2020, and this mandate is expected to decrease further to 75 g km-1 by 2025. Likewise, the Japanese government requires automakers to improve fuel economy from the present value of 15.0 to 20.3 km L-1 by 2015. With such requirements, part of the solution is the development of hybrid electric vehicles (HEVs). Clearly, the latest mild-HEVs, which by using an integrated starter–generator (ISG) have new features of electrification ― such as engine stop during acceleration and coasting, and recuperation during coasting and deceleration ― will become the main stream in the near future to improve fuel economy. This vehicle system does, however, require a battery with outstanding durability and charge acceptability. The 2nd Generation UltraBatteryTM, a combined lead–acid and supercapacitor hybrid energy-storage device, has excellent high-rate, partial state-of-charge (HRPSoC) durability and charge acceptability. This presentation describes the development of a new positive grid technology for the 2nd Generation UltraBatteryTM.
The Furukawa Battery
Masashi Matsushita, a graduate from Tohoku University, Japan, joined Furukawa Electric in 2012. From 2012 to 2015, he researched the negative active material of Li-ion batteries. In 2015 he transferred to Furukawa Battery as a secondee to support R&D activity. From 2015 to present, he has worked in the R&D department, and he is responsible for R&D of positive active material for lead acid batteries.
The Furukawa Battery Co., Ltd.
Dr. Jun Furukawa obtained a Bachelor of Science from the A-o-ya-ma-Ga-ku-in (Aoyama Gakuin) University, Japan, in 1980, and received a Ph.D from the Iwaki Meisei University, Japan in 2014. He joined the Furukawa Battery in 1980 and is now executive manager of UltraBattery division. Recently, Dr Furukawa has commercialized the UltraBatteryTM, an integrated supercapacitor/lead-acid hybrid energy-storage device for micro-HEV and renewable applications. He holds more than 100 patents. He has been awarded: Technical Development Award of The Electrochemical Society of Japan, 2009 and Technical Development Award of Ion-Exchange Society of Japan, 2015. He is a Member of the Electrochemical Society (ECS) of USA and the Institute of Electrical Engineers of Japan (IEEJ).