三问三解 | 你以为对电池好，其实是在放血

Group 1 - The core viewpoint of the articles emphasizes the importance of proper battery management to prolong the lifespan of electric vehicle batteries, highlighting common misconceptions about charging practices [1][2][4][10][13] - As of the end of 2024, the total number of new energy vehicles in China is expected to reach 31.4 million, accounting for 8.90% of the total vehicle population, with pure electric vehicles making up 70.34% of new energy vehicles [1] Group 2 - Overcharging lithium batteries can lead to the formation of "dead lithium," which reduces overall battery capacity and can cause structural instability in the battery [4][9] - It is recommended to charge lithium batteries to a range of 80%-95% to balance charging speed and battery longevity, while lithium iron phosphate batteries can be fully charged periodically for voltage calibration [9][10] - Deep discharging batteries to very low levels can cause irreversible damage to the battery's structure, leading to a significant reduction in usable capacity [10][12] Group 3 - Fast charging technologies, while convenient, can negatively impact battery health if not managed properly, as they can lead to overheating and the formation of lithium dendrites [14][18] - Effective thermal management during high-speed charging is crucial to prevent battery degradation, as elevated temperatures can convert lithium ions into dead lithium [18]