Lithium ion batteries are composed of positive and negative plates, binders, electrolytes and diaphragms. In industry, lithium cobalt, lithium manganate, lithium nickel cobalt manganate and lithium ferrous phosphate are used as cathode mate...
Xinhua News Agency, Beijing, July 5 (Xinhua) - U.S. researchers have designed a new type of silicon solar cell. By changing the passivation layer material, the energy conversion efficiency of silicon solar cells can be increased from about ...
