Why can't lithium-battery electric cars be popularized?



According to the relevant research report, the China Electric Bike Association published the data of China's electric bicycles from 2014 to 2016: among them, lithium-ion electric bicycles account for less than 3 million, accounting for less than 10%, and have a very low share of the entire electric bicycle.There are many reasons for this: first, the safety of lithium batteries, through the impact of the lithium explosion in the past, people have doubts about the safety of lithium batteries; second, the price, half of lithium batteries electric vehicles (larger and higher journeys); third, the practicality, people have a lot of tools for short-distance travel, such as sharing bicycles.For these three fundamental reasons, in order to increase the market share of lithium-ion battery electric bicycles, these problems must be solved and the direction of development must be found.            In the retail market, there are few stores specializing in lithium-ion bicycles, even in big cities like Shenzhen and ShangShang in the north; at most, in some large-scale electric vehicle stores, lithium-ion bicycles are placed in corners, which is not the focus of sales.At the Tianjin Bicycle Show, besides the launch of several lithium-ion bicycle products on the new day, even large enterprises such as Emma, Green Source and Table Bell hardly see the shadow of lithium-ion bicycles. Similarly, those who are strong bike makers are almost quitting the manufacture of lithium-ion bicycles.Therefore, lithium-ion bicycles can not be mainstream in the current domestic market.So what is the reason for the slow promotion of lithium-ion bikes over the years?            Black Horse Future Star High-end Lithium Battery            Lithium-ion bikes can only be marketed in some areas.For example, in some markets such as Beijing, Nanjing and Jinan, the sales proportion of lithium-ion bicycles is higher, especially in Beijing, the sales proportion in the last two years has reached more than 30%.The main reasons for the increase in sales of lithium-ion bikes in Beijing are road congestion and government support for the use of lithium-ion bikes.In contrast, in Shanghai, sales of lithium-ion bikes have only accounted for 3-5% in the last two years.            Only about 6% of sales are sold in cities in Guangdong.In small and medium-sized cities, lithium-ion bikes are less popular, while in rural markets, there are fewer and fewer.The biggest problem restricting the promotion of lithium-ion bicycles is maintenance.If you are in Beijing, it will be convenient for you to repair. Merchants will replace the batteries in question, temporarily replace the old batteries with the old ones for consumers, and wait about 10 days before you go to the store to replace the batteries that were originally repaired.This treatment is not available in every region, which limits the sales of lithium-ion bikes.            E-GOBIKE high-end lithium tram            The lithium-ion bike is too delicate to be used as a walking tool.After heavy goods are loaded on the lithium tram, there will be a lot of problems, such as shorter travel distance, shorter service life, etc. If the quality of the charger is not good, and there is a problem with the protective panel of the lithium battery, there will be a fire during the charging process, which makes consumers feel a little afraid to use.            The quality of lithium batteries themselves needs to be improved.Unlike lead-acid batteries, lithium batteries pay great attention to the consistency and stability of batteries in the assembly and distribution of batteries. For example, with type 18650 batteries, in series-parallel connection, the voltage of each battery should be kept in absolute consistency.If the voltage of the cores is inconsistent, the short plate effect will appear.In order to reduce costs, many whole-vehicle enterprises often make choices about chargers; those small lithium-ion battery enterprises also make mistakes on the protective plates and cores. The result is obvious that the capacity of lithium-ion batteries can no longer guarantee the mileage of lithium-ion bicycles when the lithium-ion batteries are not in use within the stipulated warranty period.            It is reported that at present, the highest repairing rate of lithium batteries for electric vehicles in China is about 13%, and the lowest is about 5%.Now many lithium-ion battery enterprises for electric bicycles operate at the profit and loss point basically. Battery enterprises have almost no net profit because of excessive capacity, and large-scale enterprises fight to the death in price.            Although the prospects of lithium-ion bicycles are good, the quality of lithium-ion bicycles can not be improved. If the lithium-ion bicycles can not be replaced and maintained as easily as lead-acid batteries after sale, it may enter the bottleneck of development.