Graphene Solar Cells-- Patent Layout

Currently, energy consumption mainly from fossil fuels, due to the limited reserves of fossil fuels as well as the environmental pollution problems, people began to look toward renewable energy. Such as wind, biomass, tidal energy, hydroelectric and geothermal environment-friendly, renewable energy sources, solar powered portable generator is the most broad application prospects.

With 1954 the first practical solar cell semiconductor advent marks the development of solar cells started; and graphene is the ideal solar cell conductive electrode material in a solar cell, by introducing graphene material, effectively improve photoelectric conversion efficiency of the solar cell.

Advances in solar cell technology based on the development of solar cell industry needs and modification of graphene, the State Intellectual Property Office patent analysis popularization project that graphene battery research group from the patent portfolio, technology trends, research and development team three perspectives, graphene solar cell technology in-depth analysis.

PART 1-- Patent Layout

Applications of graphene solar cell technology(LifePO4 battery pack) is rapidly growing in the world and China, patent portfolio mainly in China, the United States, Japan and South Korea, and the United States, Japan and South Korea are also actively layout in China, Jiangsu, Beijing and other major cities is the domestic applications source.

Global patent applications of graphene solar cells from 3 in 2007, after five years of development, the rapid increase of 169 in 2012, showing a rapid increase in the overall trend. Annual growth in patent filings China graphene solar cells similar to the global, but also a steady increase year by year.

Graphene solar cell patent filings worldwide mainly from China, followed by South Korea, the United States and Japan, suggesting that the major market countries of graphene solar cells are China, South Korea, the United States and Japan.

Graphene solar cell patent application in China is 37% of foreign applications in China, mainly from the United States, South Korea, Japan, indicating that the United States, Japan, South Korea actively pursued the patent layout in China.

Chinese domestic applicants of graphene solar cell patent applications mainly from Jiangsu, Beijing and other regions, and Jiangsu and Beijing is the relevant enterprises and research institutions in areas densely distributed concern, indicating that graphene solar cells as a new technology concerned by domestic widespread enterprises, research institutions and colleges.