Professor Beatty of Columbia University in the United Kingdom said: "Using the new architecture can help people imagine building solar pools that acquire and store energy."
On November 2, 2012, the University of British Columbia (UBC) announced that it will apply for an international patent for solar/light energy conversion cells.
Production and storage can be performed within a single solar cell. According to the University, photosynthesis can be used to make use of abundant, easily replenished and renewable biomaterials.
New type of solar storage battery meets natural intermittent photovoltaic system
"Unlike optoelectronics, solar storage cells rely on a very thin absorber layer and transparent electrodes. This new technology operates with parallel light reaching the electrode surface, allowing thick devices to store large amounts of energy," said Prof. J. Thomas Beatty.
The purpose of this invention is to allow industrial installation of a complete solar energy photovoltaic (PV) system for energy storage components. This type of system satisfies naturally intermittent photovoltaic systems, providing a solution to reduce the total demand on the grid due to the movement of the module clouds and the demand for nighttime power.
Commercialization of grid-connected power generation and off-grid power generation of solar photovoltaic systems will increase market value.
The device is expected to provide a simple and effective method for energy arbitrage by directly or indirectly storing solar energy for later use. The commercialization of technological achievements will allow greater integration of solar photovoltaic power generation into the total energy supply and management system, so this invention has the potential to increase the market value of grid-connected generation and off-grid generation of solar photovoltaic systems worldwide.
The invention is an interdisciplinary risk research led by Prof. J. Thomas Beatty, who studies microbiological photosynthesis, and John D. Madden, a professor of electrical and computer engineering.
This new method involves batteries that absorb light like cells, two electrodes, and electrolytes. The light harvesting molecules in the electrolyte absorb light and the charge-activated light harvesting molecules transfer to intermediate molecules to achieve near-perfect quantum efficiency.
The mediator stores the harvested energy and can extract it on the electrode when needed. The essence of this technology is the development of highly selective electrodes. Each electrode that first reacts chemically has only one type of mediator.
“Using the new architecture, one can imagine building a solar pool for acquiring and storing energy. This is a very versatile new method,†Professor Beatty emphasized.
The Columbia University team is strongly supported by the Canadian Natural Science and Engineering Research Association. Researchers from the University of South Florida and the Centre for Excellence in Electronic Materials Science in Australia also participated.
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