Abstract: An electrical energy storage device for a solar cell includes at least one electrode substrate coated with a oxide or mixed oxides layer. When the electrical energy storage device is electrically connected with a receive unit of the solar unit in parallel, the electrical energy storage device can have the advantages of high electric energy density, enhancing the charging efficiency of the solar cell, and reducing the charging time of the solar cell.
Type:
Grant
Filed:
August 29, 2008
Date of Patent:
March 20, 2012
Assignees:
National Energy Technology Co., Ltd., Apogee Power, Inc.