Technology:
Sekisui Chemical developed a new material for lithium-ion battery that can store three
times more electricity than the existing material. The new material will allow
an electric vehicle to travel 600 km per charge. The company also developed a
material that can simplify the production process of a lithium-ion battery, and
the new material is expected to reduce the production cost of lithium-ion
battery by 60%. Sekisui Chemical will start to ship samples to battery makers
both at home and abroad in 2014. Mass production is scheduled for 2015.
The company
used silicon in place of carbon-based material for the material to store
electricity because silicon can store more electricity. It created an alloy by
combining the new material with metal and successfully increased the durability
that is the critical problem in practical application of silicon. It also
developed a new material for electrolyte. Because what is required is to apply
it to silicon, equipment to inject liquid into battery is not necessary. Furthermore,
battery production per hour will increase 10 times.
An EV is loaded with a battery that costs two million yen to build. The new material from Sekisui Chemical will reduce the cost by more than 60%. That is, the production cost of a lithium-ion battery will go down from 100,000 yen per kW to 30,000 yen per kW. The auto industry reckons that the price of an EV will become as low as a gasoline vehicle should the battery price per kW go down to 30,000 yen.
An EV is loaded with a battery that costs two million yen to build. The new material from Sekisui Chemical will reduce the cost by more than 60%. That is, the production cost of a lithium-ion battery will go down from 100,000 yen per kW to 30,000 yen per kW. The auto industry reckons that the price of an EV will become as low as a gasoline vehicle should the battery price per kW go down to 30,000 yen.
The performance of a lithium-ion battery improves fast
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