一、Hydrogen fuel cell

Hydrogen fuel cell is a power generation device that converts the chemical energy of hydrogen and oxygen directly into electrical energy. The basic principle is the reverse reaction of electrolytic water, which supplies hydrogen and oxygen to the anode and cathode respectively, and the hydrogen diffuses outward through the anode and reacts with the electrolyte, releasing electrons to the cathode through the external load.

二、All-vanadium flow battery

      Vanadium flow battery is a kind of REDOX battery with vanadium as the active substance circulating in liquid state. The electric energy of the vanadium battery is stored as chemical energy in sulfuric acid electrolyte of vanadium ions of different valence states, and the electrolytic hydraulic pressure is put into the battery pile through an external pump. Under the action of mechanical power, it circulates in different liquid storage tanks and the closed loop of the half battery. The proton exchange membrane is used as the diaphragm of the battery pack, and the electrolyte solution flows parallel to the electrode surface and electrochemical reaction occurs. An electric current is collected and conducted through a double electrode plate, thus converting chemical energy stored in solution into electrical energy.

三、Solar photovoltaic

    Solar photovoltaic system, also known as photovoltaic, referred to as Photovoltaics; Origin "photo -" light, "voltaics volts), refers to the use of solar light born v effect of semiconductor materials and facilities can convert solar energy into direct current. At the heart of the photovoltaic facility are solar panels. The main semiconductor materials used for power generation are: monocrystalline silicon, polysilicon, amorphous silicon and cadmium telluride. Because countries are actively promoting the application of renewable energy in recent years, the development of the photovoltaic industry is very rapid.

四、Lithium battery

      Lithium battery is a class of lithium metal or lithium alloy as a positive/negative electrode material, the use of non-aqueous electrolyte solution of the battery. In 1912, the lithium metal battery was first proposed and studied by Gilbert N. Lewis. In the 1970s, M. S. Whittingham proposed and began to study lithium-ion batteries. Due to the very active chemical characteristics of lithium metal, the processing, preservation and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become the mainstream.