cr2032 button battery.Talking about "Building Tesla in Minutes" from the perspective of battery technology

　　In response to BYD Wang Chuanfu's statement that "Tesla can be built in minutes, the author analyzes Tesla models from a technical perspective. The source of the data comes from the Internet. It includes data, evaluation, actual measurement, video, and technical information. Combined with the basics of automotive technology Principles, and the most basic common sense of physics, chemistry, computers, materials knowledge, battery knowledge, hybrid power, etc. Strive to be objective and fair.

　　1. What is the core technology of Model S?

　　The core technology is software, which mainly includes battery management software, motors and electronic control technology for vehicle-mounted equipment. The most important thing is battery control technology.

　　Model S's acceleration performance, cruising range, and handling performance are all based on battery control technology. Without battery control technology, everything would be lost.

　　2. What are the features of Model S’s battery control technology?

　　The top-of-the-line Model S uses nearly 7,000 Panasonic NCR186503100mah lithium batteries. The lithium batteries are grouped twice and connected in series and parallel. Set up sensors to sense the working status and temperature of each lithium battery, which are controlled by the battery control system. Prevent dangerous situations such as overheating, short circuit, and temperature differences.

　　In daily use, the safety of lithium batteries is ensured under high current charge and discharge.

　　Other manufacturers use large batteries, only a few hundred at most, and do not have accurate control systems for each battery.

　　3. Why do we need to develop such a complicated battery control system?

　　In order to be able to use high-performance 18650 cobalt lithium batteries. High-performance lithium batteries bring high-performance cars. Because of the high risk of 18650 cobalt lithium batteries, safety cannot be guaranteed without a reliable system. This is why most manufacturers, regardless of whether they are electric vehicles, plug-in vehicles, or hybrid vehicles, dare not use cobalt-lithium batteries, especially large-capacity cobalt-lithium batteries.

　　Panasonic NCR186503100mah, in addition to having the best test consistency, many charge and discharge times, and relatively good safety, the most important thing is that it has high energy, light weight, and low price.

　　Due to its high energy and light weight, more batteries can be packed into the car within the weight limit of 2 tons, thereby ensuring a longer cruising range. Because the battery output current is limited, the more batteries, the greater the output current, the greater the power, and the greater the motor power that can be used. The greater the power of the motor, which is equivalent to the greater power of the engine, the vehicle will have faster acceleration performance and can maintain it for a longer period of time.

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