Weima was sent to the center of public opinion by the owner media some time ago, around the Weima locking incident, the owner excitedly claimed to send Weima to 315. However, with the gradual recovery of temperature, according to personal observations in the WM Forum, many car owners have also reacted to the situation of "locking the electricity" has been restored, and the endurance has reached the previous level. The "power lock incident" that makes the owner angry and the car company back the pot is likely to be just the shortening of the endurance caused by the temperature
The low temperature in winter is a big problem that has been plaguing electric vehicle manufacturers and users. After entering the winter, the temperature decreases, which will lead to a decrease in the electrochemical performance of the battery, a decrease in the charging rate of electric vehicles, and even a serious problem of battery waste, slow charging, difficulty in charging and plummeting vehicle performance. For ternary lithium, lithium iron phosphate batteries, they are all essentially lithium batteries. In the low temperature environment, the negative electrode analysis phenomenon of lithium batteries is more serious, and the precipitated metal lithium reacts with the electrolyte, and its products will be deposited on the electrode material, resulting in an increase in the interface thickness of the solid electrolyte. At the same time, the low temperature makes the concentration of the electrolyte increase and the diffusion coefficient decrease, resulting in a significant increase in the charge transfer impedance inside the battery. In addition, the cold winter, the use of air conditioning by car owners, is also one of the important reasons.
Therefore, for the public opinion of WM "locking electricity" some time ago, but now there are not many car owners in Kaichun, and it is not difficult to understand that the battery life has been restored. With the temperature rising, most of the "locked" users have now relaxed and the battery life has returned to normal levels.