Gel poly ion liquid electrolyte for solar battery and method for manufacturing the same

Abstract

The invention discloses a solar cell-used jellylike polyion liquid electrolyte and is characterized in that: the weight percentage of components are: poly-histidine-ester ion liquid: 98 to 96 percent; iodine: 1 to 2 percent and lithium iodide: 1 to 2 percent and the total amount is 100 percent; the monomer of the poly-histidine-ester ion liquid is (R1NHCOOHCH2C3H2NR2NR3)<+>X<->, wherein, R1 is benzoyl or Boc base; R2 and R3 are alkane base, and X is I<->, SeCN<-> or SCN<->. The electrolyte has the advantages of innocuity, environmental protection and low price; furthermore, the jellylike electrolyte of the histidine derivative series has excellent bonding property which can lead platinum electrodes to be adhered firmly, thus improving the filling factors of cells and forming solid electrolyte dye sensitization nanometer crystal solar cells with good stability.

Description

technical field [0001] The invention relates to a gel-like polyionic liquid electrolyte for solar cells and a preparation method thereof, which is particularly suitable for dye-sensitized nanocrystalline solar cells. Background technique [0002] There are two forms of electrolytes for dye-sensitized solar cells: liquid and solid. Among them, liquid electrolytes mostly use organic solvents as electrolyte solvents, such as acetonitrile. Such liquid electrolytes have disadvantages such as volatile, difficult packaging, and poor stability. [0003] In recent years, a new type of electrolyte for dye-sensitized solar cells, ionic liquid electrolyte, has emerged. Ionic liquids are a class of low-temperature molten salts that exist in liquid form at room temperature. Further, adding SiO to the liquid electrolyte prepared from ionic liquid 2 Nanoparticles can use the hydrogen bond interaction between them to make the above-mentioned ionic liquid electrolyte form a gel-state elec...

AI Technical Summary

Problems solved by technology

However, the existing ionic liquids for electrolytes mostly use organic heterocyclic rings such as methylimidazole as raw materials. These raw materials are mostly toxic reagents. After the electrolyte is formed, the adhesion of this type of electrolyte to the platinum electrode is poor, and due to its high viscosity, Make the fill factor of the battery smaller