The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2014
Filed:
Dec. 21, 2007
Joong Kee Lee, Seoul, KR;
Byung Won Cho, Seoul, KR;
Kyung Yoon Chung, Seoul, KR;
Hyung Sun Kim, Seoul, KR;
IL Doo Kim, Seoul, KR;
Chan Wook Jeon, Seoul, KR;
Yong Sang Kim, Yongin-si, KR;
Joong Kee Lee, Seoul, KR;
Byung Won Cho, Seoul, KR;
Kyung Yoon Chung, Seoul, KR;
Hyung Sun Kim, Seoul, KR;
Il Doo Kim, Seoul, KR;
Chan Wook Jeon, Seoul, KR;
Yong Sang Kim, Yongin-si, KR;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
A photovoltaic-charged secondary battery system is provided, in which an electrode for optical power generation and an electrode for charging and discharging generated electrical energy are integrated into a single cell structure, and the potential difference between the electrodes is systematically controlled, thus maximizing the conversion efficiency of optical energy, maximizing the utilization rate of cell energy, and extending the life span of the battery. Thus, the photovoltaic-charged secondary battery system may include a transparent electrode capable of transmitting light; a PN semiconductor layer formed on the transparent electrode and generating a current by incident light; and a secondary battery layer, formed on the PN semiconductor layer, in which the current generated by the PN semiconductor layer is charged.