Nickel as an important raw material for the manufacture of ternary lithium batteries, in recent days all the way up, Shanghai nonferrous network big data director Wang Cong recently said in an interview, because of import and export problems, domestic Nie raw materials formed a tight supply situation, resulting in nickel prices rise, and even led to many enterprises to stop production, but this is only a short-term phenomenon, follow-up import and export problems have been solved, nickel prices will gradually stabilize.
At present, the demand for China's new energy vehicle market is high, the domestic charging infrastructure is becoming more and more perfect and the safety level of new energy vehicles has been greatly improved, so that many consumers have secretly agreed, the nickel price rise has led to many new energy vehicle companies have carried out product price adjustments, the main reason is the increase in battery costs, and people once again focus on the battery quality of new energy vehicles.
The strength fully recognized by the industry - the safety of Tesla batteries
Since Tesla first introduced lithium batteries into the industry, the safety of electric vehicles has gained a qualitative leap. Initially, the industry generally believed that the 18650 ternary lithium-ion battery could not be managed in large quantities, but Tesla solved this problem through an intelligent battery management system and began to continue to improve the safety performance and life of the 18650 battery.
In order to make the cell more stable, Tesla also set a fuse at both ends of each cell, each battery brick, each cell, once the battery is overheated or the current is too large, it will be immediately fused, disconnect the output to avoid abnormal conditions due to a battery and affect the normal operation of the entire battery pack. This means that the battery fire rate of Tesla vehicles is extremely low, even if there is an accident in a battery unit, it will not affect other units, and the danger can be "snuffed out" in time, whether it is charging or driving in the rain, it can maximize the safety of the battery.
Tesla also successfully applied silicon carbon anode material on the battery cell, which greatly improved the energy density of the battery cell and stored more energy in a smaller volume. On the battery pack, Tesla's innovative design of the large module not only effectively improves the volume utilization rate, but also can accommodate more cells, and parallels the battery cells into groups to improve the instantaneous discharge ability of the battery pack and the mileage of a single charge.
At the same time, Tesla's BMS battery management system controls the charge and discharge of each battery, adjusts to meet the optimal performance, and reduces or avoids damage to the battery when charging. At the same time, Tesla also uses an advanced thermal management system to accurately and instantly control the battery pack temperature, so that it works at the best temperature, even at low temperature and low power, the battery cell can maintain balance and consistency, reduce the damage of temperature factors to the battery and the impact on battery life, and extend battery life.
With low failure rates and high satisfaction, Tesla vehicles have won the favor of users around the world
With industry-leading new energy technology, Tesla guarantees the low attenuation rate of the battery, effectively extends the use time of the vehicle, and improves the retention rate.
According to statistics, after 50,000 miles of driving, most Tesla vehicles (statistical models are Tesla Model S/X/3) batteries are only attenuated by 5%, after 100,000 miles, it is only less than 10%, even after 200,000 miles, most of them are less than 15%.
In the "2020 Tesla Impact Report", official data is also given. The chart shows that after 200,000 miles of driving, the tesla Model S/X's battery attenuation level remains around 85%, in line with the above data.
The low attenuation of the battery largely determines that Tesla vehicles have a very high retention rate. In the 2021 Ranking of China's Pure Electric Vehicle Retention Rate, Tesla Model 3 and Model Y won the championship of the retention rate of cars and SUVs respectively, and the annual retention rate was as high as 72.84% and 78.67% in the first year, which became a "reassuring pill" for many consumers when buying a car.
In addition, Tesla's low vehicle failure rate and low insurance rate have won high user satisfaction, and in the survey of consumer reports, an authoritative magazine under the American Consumer Alliance, Tesla has repeatedly topped the list of "america's most popular car brands". Ms. Yang, a Tesla owner, said that since the purchase of the Model 3 in 2020, "I have not encountered any failures in two years, I have not had an insurance once, and the maintenance is also cost-saving and worry-free, and I am very satisfied."
Tesla CEO Musk said that "safety is Tesla's primary goal", Tesla in the protection of vehicle active and passive safety at the same time, but also in the battery safety to achieve the ultimate. At the same time, Tesla has made progress with more industry partners through open patents, continuously improving the safety of green travel, and making leading new energy technologies benefit more consumers.