Detailed explanation of the application of 18650 batteries in electric vehicles

1、 The moral control and system skills of 18650 are so strong that it is not suitable for mass use of lithium batteries for customized processing in the field of passenger cars

    According to the control ability of internationally produced battery factories, the effective probability of batteries is about ppb level. If the loading capacity of a passenger car is 100 kWh, that is, one out of 100000 vehicles (calculated based on 10 Wh of a single battery) presents an insurance problem; If the control level is at the ppm level, there is a high probability that one out of 100 vehicles will take effect, considering only the control ability of the battery manufacturing process.

    Secondly, the battery system assembled from tens of thousands of 18650 batteries not only poses a great challenge to the assembly skills of the batteries, but also to the management skills of the batteries, with a high level of skill requirements. It cannot be denied that good assembly and management techniques may make the problem battery controllable, that is, the probability of landing the problem battery; On the contrary, it will accelerate the degradation of the battery and accelerate the rate at which problematic batteries take effect.

2、 18650 may be utilized in microcars; Non complementary;

    The characteristics of micro electric vehicles are small and maneuverable, but they have a higher range than traditional low-speed electric vehicles, and these two interdependent requirements pose a relatively high demand for battery adaptability. The characteristic of 18650 batteries is high energy density, which can achieve as much loading capacity as possible in a very small space. these two items. Small; The combination may achieve the maximization of vehicle efficiency, which is one of them.

    Secondly, the energy requirements for micro electric vehicles are individually between 10-20 kWh, and the demand for 18650 batteries per vehicle is individually between 1000-2000 units. This does not pose a significant challenge to the assembly and connection of the battery system. Currently, there are many distinctive 18650 battery system integrators in China that may satisfy customer needs; At the same time, because there are fewer passenger cars connected in series, it is easy to govern and the skills of the governance system are also mature. This is also an important guarantee that 18650 may be well utilized in microcars.

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