Denso Corporation said it had developed a lithium-ion battery pack that further increases the fuel efficiency of vehicles with stop/start systems.
The new battery pack allows the stop/start system to use more regenerative power than current conventional systems that use a single lead-acid battery. The battery pack consists of a battery management unit and power supply control switch, as well as battery cells that are provided by a third-party source.
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The lithium-ion battery pack stores regenerated power and then supplies the stored regenerated power to the electrical and electronic components. This reduces the power generation required by the alternator which results in an overall load reduction on the engine and improves the vehicle’s fuel economy.
The new battery pack is naturally air-cooled and therefore does not require a dedicated cooling system. Because there is no need for auxiliary cooling components, this allows the battery to be lighter and more compact. This enables automakers more packaging design flexibility.
Denso has developed different types of starters to meet the specific needs of customers for stop/start systems. It supplies the lithium ion battery pack, the TS starter and cold storage evaporator for the redesigned Suzuki Wagon R, launched in Japan earlier this month.
Denso said it would continue its efforts to expand these technologies to other automakers and global regions.
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By GlobalData
