On December 22, Toshiba announced that it has successfully developed a new type of "transmissive cuprous oxide (Cu2O) solar cell", which can be directly installed on the outside of electric vehicles, charged the car under the condition of light, and can provide a maximum cruising range of 35 km in a single day (calculated by power consumption of 12.5 km/kWh).
It is reported that the transmissive copper oxide solar cell is a high-efficiency tandem solar cell, the main material is copper and oxygen compound Cu2O, with low cost, light weight, high application value characteristics.
The scheme features the co-generation of two solar modules to improve the overall power generation efficiency, and the stacking of transmissive copper oxide solar cells on high-efficiency Si solar cells, the overall power generation efficiency is increased to 27.4%.
According to Toshiba, solar cells are installed on the engine cover and roof of electric vehicles, which can replenish up to about 35 kilometers of battery life in one day. It is worth mentioning that this kind of battery installed on the outside of the vehicle needs to be better protected to improve safety and durability.
Of course, because the battery life provided is not large, the solar cell is only used as a way to supplement energy to reduce the frequency of charging and replenishment. But for office workers who commute within 50km every day, this combination can also reduce the number of times the car is charged.
In fact, the concept of solar energy has long been used in many industries. Photoelectric semiconductor sheets that generate electricity directly through sunlight can output voltage and generate current in the case of a loop as long as the illuminance of a certain illuminance condition is met.
In the future, the application technology of solar energy in automobiles mainly has two aspects: "as a driving force" and "increasing auxiliary energy energy". However, due to technical, cost and other reasons, solar cells in the automotive field of the application of rare cases, before Toyota, Hyundai, GAC and other related technology applications, but most of them are to provide energy for 12V vehicle power supply.
If toshiba's research and development results can be popularized, it will improve the energy network structure of new energy vehicles. Since solar cars do not burn fossil fuels, they will not emit harmful substances, which can truly reduce the use of "thermal power".
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