Hitachi develops a 48V lithium-ion battery pack made by a hybrid vehicle

The Hitachi car system has developed a high-power output 48V lithium ion battery pack for medium-power vehicles that reduce fuel consumption through small batteries and electrical assistance when driven by the engine. Since this summer, Hitachi will start supplying samples to automakers 'customers and is committed to mass production in 2018.

In recent years, hybrid power systems driven by batteries and motors, especially those using 48V lithium-ion batteries, have received extensive attention in the automotive market in China and Europe as a technology to improve car fuel consumption. At present, in Japan, strong hybrid vehicles equipped with more than 100V Gaodianya batteries are the mainstream of the market, while for small-displacement models, lithium ion batteries with a voltage of less than 12V or medium-hybrid vehicles with storage capacitance * 1 have limited development.

In contrast, the hybrid power system equipped with 48V lithium-ion batteries has a good effect of reducing fuel consumption and a high price for money, so it can surely be quickly popularized in Europe and China. It is expected that by 2023, China's annual production of mixed power vehicles will exceed 4 million vehicles, and Europe will reach 2 million * 2 vehicles, and the market will further expand in the future.

Hitachi completed the basic design of the lithium ion battery pack for the 48V hybrid car in March 2016. The newly developed 48V lithium-ion battery pack has the characteristics of strong assemblability and high reliability by loading the BMS substrate, battery monomer, relay and fuse group into the same box.

The built-in square lithium-ion battery monomer has excellent performance in low-temperature resistance and its output density is 1.5 times that of Hitachi battery monomer. When using the 48V system to accelerate the motor, it can fully exert its torque performance-achieving a maximum output power of 10 kW or more and a maximum input power of 13 kW or more within 10 seconds. At the same time, the compact design of the battery pack increases the degree of freedom in the configuration of the car.

This product is developed and sold by Hitachi Automobile System and manufactured by Hitachi Vehicle Energy, which produces lithium-ion batteries for vehicles. It will take the lead in the "2016(14th) Beijing International Automobile Exhibition" held in Beijing from April 27th to May 4th, and the "Car Technology Exhibition People and Vehicles Technology Exhibition held in Yokohama, Japan from May 25th to May 27th. Yokohama 2016".

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