1.18650 aku

18650 lithium battery is a standard battery set by Sony to save money. “18” indicates a diameter of 18mm, “65” indicates a length of 65mm, and “0” indicates a cylindrical battery. There are only scale types of batteries, which can be divided into lithium iron phosphate batteries, lithium cobalt oxide batteries, and lithium batteries according to different negative electrode information.

That year, the Tesla sports car used a 18650 lithium cobalt oxide battery, which was later changed to a ternary data battery customized by Panasonic, that is, a nickel-cobalt-aluminum ternary positive data battery. Model-S uses more than 8,000 batteries, 1,000 more than Roadster, but the price is 30% cheaper. What is lithium cobalt oxide? What is ternary lithium battery? You can make it clear! Hey, don’t worry, you can read on, beautiful friend…

2. Lithium cobalt ion battery

Li-cobalt ion battery is a kind of lithium battery with stable structure, high capacity ratio and outstanding sensing function. However, its safety is poor and the cost is high. It is very important for the production of mobile phones, laptops and other portable electronic devices. Tesla is the only company that uses 18650 lithium cobalt-ion batteries in its first electric car, the Roadster.

3. Ternary lithium battery

Ternary lithium battery is a lithium battery made of lithium nickel cobalt manganese (Li(NiCoMn)O2) negative electrode data. It is related to lithium cobalt acid battery and has high safety. It is suitable for small batteries. The energy density of the ternary lithium battery is much higher than that of the lithium iron phosphate battery, about 200Wh/kg, which means that the ternary lithium battery of the same composition has a longer life than the lithium iron phosphate battery.

Sanyo, Panasonic, Sony, LG, Samsung and other five major battery brands in the world have successively launched three data batteries. Low-power and high-power batteries at home and abroad use the most positive data.

Representative models: Tesla MODEL S, BAIC Saab EV, EV200, BMW I3, JAC, iEV5, Chery eQ

4. Lithium iron phosphate battery

Lithium iron phosphate battery is a lithium battery with lithium iron phosphate as the positive data. Its most prominent feature is thermal stability, which ranks first in automotive lithium batteries. Therefore, it has become one of the important categories of electric vehicle batteries.

Representative model: BYD E6

Vesinikkütus

Hydrogen fuel cells use the chemical element hydrogen to make batteries that store energy. The basic principle is the reverse reaction of electrolyzed water, which provides hydrogen and oxygen to the cathode and anode respectively. Hydrogen diffuses outward through the attack reaction of the cathode and the electrolyte, and electrons are released to the anode through the external load, leaving only water and heat. The power generation efficiency of fuel power cells can reach more than 50%, which is determined by the conversion properties of fuel power cells. The fuel power cell directly converts chemical energy into electrical energy, without the need for centralized conversion of thermal energy and mechanical energy (generators).

Now, Toyota’s first mass-produced hydrogen fuel cell sedan, Mirai, will be launched in Japan on December 15, with an estimated price of 723,000 yen, a power of 114 kilowatts, and a cruising range of about 650 kilometers. Other representative models: Honda FCV concept car, running b-class fuel cell sedan