At a time when environmental pollution continues to be difficult to solve and oil and gas prices fluctuate drastically, there is really no alternative to power energy. In this context, the concept of electric vehicles has been in the world for many years. The Tesla Model S electric vehicle, which was launched last year, became popular because of its cool appearance, relatively reliable price, and performance that is not inferior to gasoline power. purple. Related domestic industries are also stepping up their layout.

　　For electric vehicles, the problem of charging efficiency is not difficult to solve, but how to charge is a troublesome matter. It is not realistic to use the owner's household power supply to charge a car hundreds of meters away, and setting up a charging facility in a parking lot also requires a large-scale transformation of the infrastructure. The solution for the government and manufacturers is to build charging stations covering both urban and rural areas. Tesla is cooperating with China Minsheng Bank, Yintai and China Unicom to build charging piles around its branches.

　　 But can charging stations really solve the battery life problem of electric vehicles? Regardless of the 9.6 million square kilometers of land, how to build sufficient charging facilities in the sparsely populated central and western regions; only in more than 650 large and small cities, the construction of sufficient self-charging equipment requires the completion of a huge power grid transformation project , And occupy a large amount of land, which is obviously a serious waste in urban areas with tight land resources; after the widespread popularity of electric vehicles, in first-tier cities with dense users, even 5 minutes of charging time will still cause congestion in nearby roads, and The construction of more intensive facilities is obviously impossible. This series of problems, the difficulty of charging after the popularization of electric vehicles may severely restrict the development of the industry.

　　 It's better to plan ahead. To solve the charging problem may require another way: "replacement of batteries" for electric vehicles seems to be a better choice than charging around charging piles. According to the population and user density, the establishment of battery rental stores, and the pre-prepared charged battery modules are provided to users for replacement. It can indeed avoid a lot of trouble. According to Tesla’s introduction, replace the entire battery pack for Model S electric vehicles. The process takes only 90 seconds, which greatly reduces user time, improves efficiency, and reduces possible congestion; secondly, compared to charging stations, battery rental outlets can be greatly reduced, and the cost of land and grid transformation is also reduced. In areas with large areas and sparsely populated areas, users can also double the range of their vehicles by bringing their own backup batteries, avoiding the short-legged shortcomings of electric vehicles. In fact, in Tesla's future plans, its charging service stations include battery replacement services.

However, there is still a lot to go for the replacement of car batteries. On the one hand, various automakers are developing their own battery modules, and it is difficult to harmonize standards with each other; under the current technical conditions, replacement of batteries is not a household appliance. It's that simple and requires professional and technical personnel. To solve these problems, I am afraid that the overall planning of the management department and the progress of technology research and development are needed.

In any case, the electric vehicle industry is already on the eve of rapid expansion. Effectively solve the problem of supporting facilities, choose the development path accurately, remove stumbling blocks on the path in advance, avoid falling halfway, and let the entire industry subject to individual problems. This may be management Department’s top priority. Over the years, the low-level mistakes of too many cars and fewer roads and fewer cars caused by the unmatched development of the transportation industry should be taken as a warning.