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Amid calls for conversion to clean energy, people are highly looking to the lithium-ion battery that is mounted on eco-car (hybrid car, electric car, electric motorcycle etc.) and can store much energy in small size and light weight.

In 2009, NKK officially entered into the market of lithium-ion battery separator made of cellulose plant fiber first in the world. It is more superior in heat resistance and durability than those of polyolefin separator made of synthetic resin adopted by other companies and it can bear off severe environment in lithium-ion battery.

 
 
 

The item necessary for the dynamo that uses natural energy such as store power generation and wind force power generation for "energy generation" is the capacitor that can charge and discharge large amount of electric energy instantaneously called electric double layer capacitor.

 
 

The electric double layer capacitor is expected to be expanded to wide application to "energy saving" field such as vehicle with idling stop function and regeneration energy of rail in addition to "energy generation" field.
NKK will promote the technology development aiming at the further business expansion in this field without satisfying with the estate as global brand.

 
 
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