What are the electrochemical performance requirements for 18650 lithium battery testing?

Electrochemical performance requirements for 18650 lithium battery testing 1. Normal temperature discharge performance conditions: at 1 standard atmosphere, ambient temperature 20℃±5℃, relative humidity 45%~75%, after standard charging of the battery (if there is nothing special below Note, all placed under this condition, all according to this charging method), put it aside for 30min, respectively discharge at 1C; A, 10C5A, 15C; A to the termination voltage, and cycle three times. When one reaches the standard, it meets the standard requirement. The requirements meet: A) 1C5A≥1h; B) 10C5A≥5.4min; C) 15CsA≥3.2min2. Conditions of charge retention capacity at room temperature: After standard charging of the battery, leave it in an open circuit for 28 days, and then discharge at 0.2C5A to the termination voltage. Requirements to meet the standard: discharge time ≥255min3, cycle life conditions: 1CsA/13C5A discharge to the termination voltage, set aside for 30min, and cycle 300 times in this mode; requirements: discharge time ≥3.23min4 after 300 cycles, overcharge and overdischarge performance Condition: After the battery is standard charged, it is charged to 4.8V with a current of 3CsA, and then transferred to a constant voltage charging to the cut-off current of 0.01CsA. After the battery is standard charged, it is discharged with 1CsA to the termination voltage, and then the positive and negative poles of the battery are connected with a 10Q resistor and left for 14 days. Requirements: non-fire, non-explosive lithium battery is a high-capacity, long-life, environmentally friendly battery with many advantages and is widely used in fields such as energy storage, electric vehicles, and portable electronic products. Electrode pole pieces are the basis of lithium-ion power lithium-ion batteries, which directly determine the electrochemical performance and safety of the battery. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the important functions of the lithium iron phosphate battery pack management system?