Nitto-denko Corporation

Chiharu Odane

Kazutaka Hara

Shunsuke Noumi

Shigenori Morita

Tomohiro Kontani

Hiroyoshi Take

Takuji Shintani

Mayu Ozaki

Manabu Miyazaki

The present invention provides a sensor cell that has excellent measurement accuracy in repetitive measurement. An optical waveguide of the present invention includes a cladding layer and a core layer buried in the cladding layer so that at least one surface of the core layer is exposed. A water contact angle of a surface of the cladding layer on which the core layer is exposed is 80&#xb0; or more. An SPR sensor cell and a colorimetric sensor cell of the present invention each include the optical waveguide of the present invention.

Optical waveguide, and SPR sensor cell and colorimetric sensor cell each using same

A battery separator () of the present invention includes a porous film () serving as a substrate and a crosslinked polymer layer () supported on the porous film (). The crosslinked polymer layer () contains a crosslinked polymer and inorganic particles, and is non-porous. The crosslinked polymer is obtained by reacting a reactive polymer having a functional group in its molecule with a polyfunctional compound reactive with the functional group so as to crosslink at least a part of the reactive polymer. A lithium ion secondary battery of the present invention includes a positive electrode (), a negative electrode (), the battery separator () of the present invention disposed between the positive electrode () and the negative electrode (), and a non-aqueous electrolyte solution. The battery separator () is disposed so that the porous film () faces the negative electrode () and the crosslinked polymer layer () faces the positive electrode ().

Battery separator and method for producing the same, and lithium ion secondary battery and method of producing the same

Growing community of inventors

Ibaraki, Japan

Chiharu Odane