Mixed new material and improved heat radiation

(Translation from Japanese)


On solar battery

Improved 10% power generation efficiency.

rEfEj Inc. venture company for material for new energy (Hiratsuka City Kanagawa Prefecture :Jeremiah Suzuki C.E.O) and  Hamaguchi urethane Co.Ltd.( Hamamatsu City Shizuoka prefecture: Hamaguchi Mutsumi President) have developed new materials that raises the power generation efficiency of the solar battery.

If you mix it with the backseat (protection material) and the resin to bond the power generation element (cell) you can keep down temperature rise.

And you can raise the power generation efficiency by 10% or more if you use for the crystal type solar battery.

This new material is made of alumina and silicon dioxide, mixed with special carbon material and by baking it they developed an original ceramic material.

 They say when you mix it with the resin for bonding material you can increase the thermal conductivity to ten times that of an existing product.

By improving heat radiation, the temperature of the solar battery is suppressed. And it is assumed to decrease the power generation efficiency by 0.45% when the temperature rises at 1.

In case of domestic use the surface temperature of the solar cell module rise about 80 maxim. But you can keep down it up to about 55 and the power generation efficiency will rise by about 11%.

The price of the bonding material mixed new materials is expected to become about 250 yen per square meter.

And they are planning to promote the sales to a domestic and foreign solar battery material manufacturer starting this summer.

And also they are examining to provide know-how and the mass production technology.

Not only the solar battery but also the cellular phone and the personal computer, etc. it becomes a big problem to improve the heat radiation of parts.

The development of new materials to make long life for the digital devices etc. seems to accelerate around Japanese manufacturers in the future.


The structure of the solar battery and how used the new material of rEfEj Inc.


The glass board, resin bond, , , and