Wavelength conversion type sealing material sheet and solar battery module

A solar battery module comprising a solar battery cell and a sealing material sheet that protects the solar battery cell, characterized in that:

• the sealing material sheet is mixed with a needle resin having a fluorescent substance sealed therein, and the sealing material sheet has a thickness (c);
• when an average long diameter of the needle resin is defined as “a” and an average short diameter of the needle resin is defined as “b”, there are relations of “a>b” and “a>c”;
• the fluorescent substance to be sealed in the needle resin is MMgAl10O17:Eu,Mn, wherein M is one kind or plural kinds of elements of Ba, Sr, and Ca;
• and
• the needle resin and the solar battery cell are laminated in this order from the sunlight incident side.

A solar battery module comprising a front glass having an antireflection film formed on the outside surface thereof and, in the inside of the front glass, a protective sealing material sheet between the front glass and a solar battery cell, characterized in that:

• the antireflection film is mixed with a needle resin having a fluorescent substance sealed therein, and the antireflection film has a thickness (c);
• when an average long diameter of the needle resin is defined as “a” and an average short diameter of the needle resin is defined as “b”, there are relations of “a>b” and “a>c”;
• the fluorescent substance to be sealed in the needle resin is MMgAl10O17:Eu,Mn, wherein M is one kind or plural kinds of elements of Ba, Sr, and Ca;
• and
• the needle resin and the solar battery cell are laminated in this order from the sunlight incident side.

A solar battery module comprising a front glass having a wavelength conversion film formed on the outside surface thereof and, in the inside of the front glass, a protective sealing material sheet between the front glass and a solar battery cell, characterized in that:

• the wavelength conversion film is mixed with a needle resin having a fluorescent substance sealed therein, and the wavelength conversion film has a thickness (c);
• when an average long diameter of the needle resin is defined as “a” and an average short diameter of the needle resin is defined as “b”, there are relations of “a>b” and “a>c”;
• the fluorescent substance to be sealed in the needle resin is MMgAl10O17:Eu,Mn, wherein M is one kind or plural kinds of elements of Ba, Sr, and Ca;
• and
• the needle resin and the solar battery cell are laminated in this order from the sunlight incident side.