From 2019 to now, there have been a number of spontaneous combustion and explosion accidents of electric bicycles, causing significant property damage and casualties, the vast majority of which are caused by the charging of lithium batteries of electric bicycles, thus the safety of lithium batteries is receiving more attention.
Because take-out and logistics as well as short-distance peer demand high industry by the original fuel motorcycle means of transportation is gradually converted to electric, the demand for electric bicycles increased. At the same time also pulled the whole electric bicycle consumption growth.
In addition, the electric vehicle power battery market saturation, the last round of power lithium battery wave eliminated under some of the less competitive battery companies transferred to the electric bicycle market, but also increased the safety risks of lithium batteries for electric bicycles.
All along, lead-acid batteries have an absolute cost advantage over lithium batteries, which is also the reason why electric bicycles mainly use lead-acid batteries. Compared with ordinary lead-acid batteries, the price of lithium batteries is about 26% higher.
Due to the introduction of the new national standard, the quality of electric vehicles and motor power and other harsh requirements, forcing electric bicycle manufacturers to use higher energy density and smaller power lithium batteries instead of lead-acid batteries, since then the electric bicycle industry has begun the market trend of replacing lead-acid batteries with lithium batteries.
As the concentration of the new energy vehicle industry continues to increase, the technical requirements to improve, resulting in many small and medium-sized battery companies that have lost the market to the lower technical threshold of small power lithium battery market transformation.
According to the data concerned by Riding Electronics, the shipments of small power lithium batteries mainly for electric bicycles have exceeded 14GWh in 2019, and the scale of output value has exceeded 10 billion, with a growth rate of over 50% for 2 consecutive years. At the same time, as the cost of lithium batteries continues to decline, the cost gap between small power lithium batteries and lead-acid batteries is also shrinking at a rate of nearly 10% per year.
However, lithium batteries can not avoid the safety risk of fire and explosion after a violent collision or high temperature conditions, lithium batteries are still very important to the casualty and protection.
According to statistics, the national average of about 2,000 electric bicycle fires each year, with nearly half of the accidents occurring in the summer.
Therefore, it is very important for the detection of thermal control and external unstable elements in the process of battery leaving the factory, but this in turn increases the production cost of electric bicycle manufacturers.
Riding Electronics believes that, compared to technical standards, more importantly, China's electric bicycle industry currently lacks the relevant responsibility for the identification of the main body, and a number of previous electric bicycle accidents, are difficult to determine responsibility, the battery and electric bicycle manufacturers to blame each other for the problem.
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