Provided is an electrode binder for a biofuel cell, which can provide an electrode slurry that has a low environmental load, a conductive material of which being good in dispersibility, and is suitable for screen printing and allows production of a biofuel...

A positive electrode mixture layer for a lithium-ion secondary battery providing a positive electrode mixture layer for a lithium-ion secondary battery suitable for producing a lithium-ion secondary battery with high rate characteristics at an ordinary tem...

Provided is a sound absorbing material, including: a protective layer; a first substrate layer having a communication hole; and a second substrate layer having a communication hole, in this order, in which a flexibility-toughness value of the protective la...