Data source: True Lithium Research. August 20th, 2016. In 2015, nearly half of the production and sales of new energy vehicles were achieved in November and December, which is referred to as "rush to install" in the capital market. With the deepening of the fraud c...

Data source: The vehicle production data for 2016 comes from China Automotive Center, while other data comes from True Lithium Research. August 20th, 2016. From Table 4, it can be seen that the total demand for power lithium batteries in China's new energy vehicle produc...

Part 2: Development of New Energy Vehicles and Automotive Power Lithium Batteries in 2016 1.6 Production of new energy vehicles and demand for lithium batteries in the first half of the year According to statistics from China National Automobile Corporatio...

3 Conclusion This article proposes a micro short circuit diagnosis method for battery packs to address the safety issues during their aging process. After a micro short circuit occurs in the battery, it will continuously consume electrical energy, causing the relative chargi...

Conduct consistency analysis of Kn-n-1 and j values for the remaining modules, and the box plots of Kn-n-1 and j values for each module are shown in Figure 11. According to the statistics of module numbers with abnormal Kn-n-1 and j values, as shown in Table 3, module 1 and module 2 are abnorm...

Analyzing the battery pack Δ At the same time as C, inspect the battery pack's various modules Δ U for analysis. Figure 5 shows the voltage curves of each module at the end of each charge in three battery pack tests, which can be calculated Δ U. Each module Δ The U-curve is shown in Fi...

(2) Calculate the difference between the voltage of each module at the end of each charging of the battery pack and the voltage of each module at the end of the subsequent charging Δ U and compare with each other, select Δ The corresponding charging data with a smaller U value can be selecte...

The Kn-n-1 and j values of a certain monomer are abnormal and repeated the most frequently as abnormal values, which may be due to the high DC internal resistance of the monomer. Screening the monomer based on DC internal resistance does not affect the diagnostic results and can improve the ac...

1.2 Diagnosis of battery pack micro short circuit After obtaining the relative charging time of each individual charge in the battery pack, the difference in relative charging time between two adjacent charges of the individual can be calculated, and the Kn-n-1, j values can...

The battery pack composed of these six units in series stopped charging when the No. 6 unit first reached the charging cut-off voltage of 3.65V at tn and 0:00, while the other five units were not fully charged. If it is possible to continue charging a single unit that is not fully charged in t...