SOLAR CELL MODULE AND SOLAR CELL
A ratio of an area in which a first exposed portion 12 b is formed to an area of a first main surface A (a first value v) is smaller than a ratio of an area in which a second exposed portion 13 b to an area of the second main surface B (a second value w). A ratio of the first value v to the second value w is smaller than a ratio of a third value x to a fourth value y, where the third value x is a ratio of an area in which the first connecting portion 12 a is formed to an area of a region C, and the fourth value y is a ratio of an area in which the second connecting portion 13 a is formed to an area of a region D.
1 . A solar cell module comprising:
a solar cell;
an one wiring member connected on a light receiving surface of the solar cell; and
an other wiring member connected on a back surface opposite to the light receiving surface of the solar cell; wherein
the solar cell comprises: a first member group that includes at least a plurality of first fine-line electrodes formed on the light receiving surface; and a second electrode formed on the back surface,
the first member group includes a first connecting portion that is connected to the one wiring member and a group of first exposed portion exposed from the one wiring member,
the second electrode includes a second connecting portion that is connected to the other wiring member and a second exposed portion exposed from the other wiring member,
a first ratio that is a ratio of an area in which the first exposed portion is formed to an area of the light receiving surface is smaller than a second ratio that is a ratio of an area in which the second exposed portion are formed to an area of the back surface, and
a ratio of the first ratio to the second ratio is smaller than a ratio of a third ratio to a fourth ratio, the third ratio being a ratio of an area in which the first connecting portion are formed to an area of a region to which the one wiring member is connected on the light receiving surface, the fourth ratio being a ratio of an area in which the second connecting portion are formed to an area of a region to which the other wiring member is connected on the back surface.
2 . The solar cell module according to claim 1 , wherein the second electrode has a plurality of second fine-line electrodes, and
the plurality of second fine-line electrodes each have the second connecting portion and the second exposed portion.
3 . The solar cell module according to claim 1 , wherein the first connecting portion is connected to the one wiring member in direct contact with the one wiring member.
4 . The solar cell module according to claim 1 , wherein the second connecting portion is connected to the other wiring member in direct contact with the other wiring member.
5 . The solar cell module according to claim 2 , wherein among the plurality of second fine-line electrodes, at least two second fine-line electrodes are combined into one in the region to which the other wiring member is connected.
6 . The solar cell module according to claim 1 , wherein among the plurality of first fine-line electrodes, at least one first fine-line electrode is branched into a number of lines in the region to which the one wiring member is connected.
7 . The solar cell module according to claim 1 , wherein the first member group includes an island-shaped member formed into an island shape within the region to which the one wiring member is connected.
8 . A solar cell module comprising:
a solar cell;
an one wiring member connected on a light receiving surface of the solar cell; and
an other wiring member connected on a back surface opposite to the light receiving surface of the solar cell; wherein
the solar cell comprises: a first electrode formed on the light receiving surface; and a second electrode formed on the back surface,
the first electrode includes a first connecting portion that is connected to the one wiring member and a first exposed portion exposed from the one wiring member,
the second electrode includes a second connecting portion that is connected to the other wiring member and a second exposed portion exposed from the other wiring member,
an area of the first exposed portion is smaller than an area of the second exposed portion, and
a ratio of the area of the first exposed portion to the area of the second exposed portion is smaller than a ratio of an area of the first connecting portion to an area of the second connecting portion.
9 . A solar cell comprising:
a photoerectic conversion body;
a first member group including at least a plurality of first fine-line electrodes formed on a first main surface of the photoerectic conversion body; and
a second electrode formed on a second main surface of the photoerectic conversion body; wherein
an one wiring member is electrically connected to the plurality of first fine-line electrodes, and an other wiring member is electrically connected to the second electrode,
the first member group includes a first connecting portion that is connected to the one wiring member and a first exposed portion exposed from the one wiring member,
the second electrode includes a second connecting portion that is connected to the other wiring member and a second exposed portion exposed from the other wiring member,
a first ratio that is a ratio of an area of the first exposed portion to an area of the first main surface is smaller than a second ratio that is a ratio of an area of the second exposed portion to an area of the second main surface, and
a ratio of the first ratio to the second ratio is smaller than a ratio of a third ratio to a fourth ratio, the third ratio being a ratio of an area of the first connecting portion to an area of a region to which the one wiring member is connected on the first main surface, the fourth ratio being a ratio of an area of the second connecting portion to an area of a region to which the other wiring member is connected on the second main surface.
10 . A solar cell comprising:
a photoerectic conversion body;
a first electrode formed on a first main surface of the photoerectic conversion body; and
a second electrode formed on a second main surface of the photoerectic conversion body; wherein
an one wiring member is electrically connected to the first electrode, and an other wiring member is electrically connected to the second electrode,
the first electrode includes a first connecting portion that is connected to the one wiring member and a first exposed portion exposed from the one wiring member,
the second electrode includes a second connecting portion that is connected to the other wiring member and a second exposed portion exposed from the other wiring member,
an area of the first exposed portion is smaller than an area of the second exposed portion, and
a ratio of the area of the first exposed portion to the area of the second exposed portion is smaller than a ratio of an area of the first connecting portion to an area of the second connecting portion.
11 . The solar cell module according to claim 2 , wherein the first connecting portion is connected to the one wiring member in direct contact with the one wiring member.
12 . The solar cell module according to claim 2 , wherein the second connecting portion is connected to the other wiring member in direct contact with the other wiring member.
13 . The solar cell module according to claim 2 , wherein among the plurality of first fine-line electrodes, at least one first fine-line electrode is branched into a number of lines in the region to which the one wiring member is connected.
14 . The solar cell module according to claim 2 , wherein the first member group includes an island-shaped member formed into an island shape within the region to which the one wiring member is connected.