If you want to buy which electric car you want the most, it is not the Tesla Model S. As of December 2015, the car has sold more than 100,000 units. Many industry critics praise the safety, mileage and design of this car. However, if you know what incredible raw materials are used in this car, then you won't be surprised. Let's take a look at what is inside the Tesla ModelS: Body and chassis Bauxite: The Tesla Model S body and chassis are made of almost all aluminum and are made from bauxite ore. The weight of aluminum is extremely light, and this material helps Tesla travel longer than other electric vehicles. The model S uses a total of 410 pounds (190 kg) of aluminum. Boron steel: High strength boron steel strengthens the critical safety of aluminum. Boron steel is made from iron, boron, coking coal, and other additives. Titanium: The bottom material of the Tesla Model S is high-strength titanium, which protects the battery from road external forces or perforation damage. Interior Rare Earth Metals: Tesla's engines and TVs do not use rare earths, but high-end car speakers and other electronic components use rare earth materials such as pins. Plastics: Most of the plastics in the car come from petrochemicals. Leather: The leather inside the Tesla car comes from animal skin, mainly cowhide. Silicon: Model S's windows and other accessories are made of silicon. The raw materials for other interior components also include conversational avant-garde and copper wire. wheel Bauxite: Model S's aluminum alloy wheels are made of bauxite. Rubber: Natural rubber is taken from rubber trees, but today 70% of the US rubber is synthetically made from petrochemical products. Induction engine: Copper: The Tesla high-performance copper rotor engine delivers 300 horsepower and weighs 100 pounds (45.4 kg). Steel:: Engine firmware, fixing piece, material used for steel and copper. battery The Tesla battery pack weighs 1200 pounds (540 kg), which is 26% of the weight of the vehicle. At the same time, Tesla's center of gravity is only 44.5 inside the ground, so the vehicle has unprecedented driving stability. The battery itself contains 7104 lithium-ion cells, and the materials in each cell are mainly: Cathode: The Tesla Model S battery cathode uses the American Association of Communications standard material combinations with a ratio of 80% nickel, 15% cobalt and 5% aluminum. In addition, a small amount of lithium is also used. Anode: The negative electrode wiring uses natural or synthetic graphite to keep lithium ions. In addition, the anode also uses a small amount of silicon. Electrolyte: The material of the electrolyte is mainly lithium salt. In addition, copper and/or aluminum foil is used in the battery. Solar Panel, also known as "solar chips" or "photovoltaic cells", are thin slices of photovoltaic semiconductor that generate electricity directly from sunlight.
The photoelectric conversion efficiency of monocrystalline solar panels is about 15%, with the highest reaching 24%, which is the highest among all kinds of solar panels. However, the production cost is so high that it cannot be widely used.
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The photoelectric conversion efficiency of polysilicon solar panels is much lower, which is about 12%.
In terms of production cost, it is cheaper than monocrystalline, material manufacturing is simple, save power consumption, the total production cost is lower, so it has been developed in large quantities.