Perovskites cannot be connected in parallel like silicon batteries, but the output energy is higher when connected in series. The structure of a perovskite solar cell sequentially includes a first electrode, a first carrier transport layer, a perovskite layer, a second carrier transport layer, and a second electrode. For large-area components, perovskite solar cells are typically connected in series, where several small cells (or sub-cells) are assembled together to achieve higher output performance.
The difference between perovskite cells and solid-state batteries
Perovskite solar cell (PSC) is a solar cell that includes commonly used perovskite structure compounds . mixed inorganic materials of lead or tin halides as an active light trapping layer.
Perovskite materials, such as methylammonium lead halide and fully inorganic cesium halide, are inexpensive to produce and easy to manufacture.
The solar cell efficiency of devices using these materials increased from 3.5% in 2009. 8% to 25% in 2020. 5% in single junction architecture and 29.1% in silicon-based tandem cells, surpassing the cellular efficiency achieved by single-junction silicon solar cells. Therefore, perovskite solar cells are currently the fastest growing solar technology.
Perovskite solar cells have the potential to achieve higher efficiencies and extremely low production costs and have become commercially attractive.
Perovskite batteries and solid-state batteries are two different types of batteries. The main differences lie in theirrs electrolytic materials and their operating principles. Perovskite cells use liquid or gel electrolytes, and their electrode materials are perovskite structure materials, such as perovskite oxide, so they are also called perovskite solar cells. Compared with traditional silicon solar cells, perovskite cells have higher photoelectric conversion efficiency and lower manufacturing costs. Solid-state batteries use solid electrolytes, such as alumina, lithium sulfide, etc., and the electrode materials can be lithium, sodium, etc. Solid-state batteries have the advantages of high energy density, good safety and long life, and are suitable for electric vehicles, portable electronic devices and other fields. Compared to traditional wet batteries, solid-state batteries also have higher temperature resistance and shock resistance. Generally speaking, perovskite batteries and solid-state batteries have differences in electrolytic materials and working principles, and therefore have different application scenarios, advantages and disadvantages.