The energy consumption caused by insufficient tire pressure has a great impact on hybrid and electric vehicles. When the automotive industry develops toward electric vehicles and autonomous driving, tire gas retention is particularly important. This requires manufacturers to increase the amount of butyl rubber in the production of tires and improve the airtightness of the tires. In addition, tire users are more concerned about the operating cost per kilometer, which is the profit from the cost of the tire. They are more inclined to accept leak-proof tires, and tire manufacturers can produce leak-proof tires with built-in chips and replaceable power systems.