Battery has become the core issue in the development of electric vehicles

With the gradual formation of the "automobile society," the number of car ownership continues to show an upward trend, while vehicles such as petroleum and other resources are gradually becoming scarce and gasoline as fuel continues to emit large amounts of harmful gases and pollutants. Energy conservation and consumption reduction are imperative. The ultimate solution is not to restrict the development of the auto industry. Instead, it is to develop new energy vehicles that replace petroleum, and batteries are the “heart” of new energy vehicles. Their product-related problems have also become a matter of choice. Key issues for purchasing new energy vehicles.

The battery life is short and the weight is heavy, and the cost of the later maintenance can be deterred
Although the average life of a single lithium battery can reach more than 1500 charge and discharge, if it is combined into a car battery pack, the product life may drop to about 500 times, and the interest rate of the product is greatly reduced. A pure electric car that can continue for more than 150 kilometers will have a battery box weighing more than 200 kilograms. Therefore, quick battery replacement also poses a problem.

Battery quality problems, safety is difficult to guarantee
In April and July 2011, there were two accidents of spontaneous combustion of new energy vehicles in Shanghai and Hangzhou. The underlying reason may be due to a lack of power management system that caused the battery pack to overheat. The public questioned the safety of new energy vehicles, directly affecting the public's confidence in the consumption of new energy vehicles.

Supporting resources are scarce and the battery is expensive
The domestic electric car manufacturers' pure electric vehicle production capacity does not exceed 10,000 vehicles. The supply chain is still far from being scaled. Not to mention its parts and components are not marketized, replacing batteries has become another problem. Batteries as a necessary consumables, to a certain extent, restrict people's desire to buy.

Lack of charging facilities, long charging time, high labor costs
According to relevant statistics, by the end of December 2009, China Southern Power Grid had already built and put into operation the first batch of electric vehicle charging stations in Shenzhen. A total of 2 charging stations and 134 charging piles were used, but this is far from enough to promote electric vehicles. Even if the owner is able to use the household power source for charging, it takes at least 4 to 6 hours to fully charge the power in this mode. For such a long charging time, the user will have to use a lot of inconvenience. Moreover, at present, many owners do not have private gardens or private garages. They can only park their cars on open-air parking spaces or on the side of roads. Without corresponding auxiliary facilities, the charging can basically not be completed. Especially now that the housing is mainly high-level, for its owner, how to connect the power supply to the electric vehicle has also become a big problem.