26650 Safety Performance Detection Method of Lithium Ion Battery

　　Author ：Iflowpower – Portable Power Station Supplier

The safety performance detection of the 26650 lithium-ion battery is as follows: 1. After the precharge performance 26650 lithium-ion battery standard is charged, the initial state of the battery is measured. When the battery status is normal, the current is charged to 10.

0V, and then the rotary pressure charger is as of Termination when current is 0.01c. Observe the appearance of the battery.

RESULTS: Do not afford the fire, not exploded 2, over-release performance 26650 lithium ion battery standard charging, measure the initial state of the battery, when the battery is normal, discharged from 0.5c to 0V. Observe the appearance of the battery.

RESULTS: Do not afford the fire, not exploding 3, the external short circuit 26650 lithium-ion battery standard is charged, measure the initial state of the battery, placed in the explosion-proof cover straight short circuit to its positive and negative poles (the total electrical resistance is not more than 50m), when the battery temperature dropped At the end of the experiment at about 10 ¡ã C lower than the peak temperature. Observe the temperature and appearance of the battery. RESULTS: No fire, not exploded 4, thermal abuse measurement 26650 lithium-ion battery initial state, battery standard is charged, placed in an oven, temperature (5±2 ¡ã C) / min rises to 130±2 ¡ã C and heat insulation for 30 min.

Observe the appearance of the battery. RESULTS: Do not afford the fire, not exploding 5, the initial capacity of the 26650 lithium-ion battery, the standard charging, measure the initial state of the battery, vertical, the experimental battery is vertical, the horizontal direction is free to fall into the horizontal direction On the cement floor, it is required to fall 2 times. RESULTS: No fire, not exploded 6, heavy material impact places a steel rod of a diameter of 15.

8mm in the middle of the full-electric battery; then the weight of 10kg is free to fall from 1.0m high to the upper part of the battery. RESULTS: Do not affont fire, do not explode 7, extrusion detection cells are placed between the two extruded surfaces of the extruded equipment, the cylindrical core shaft is parallel to the extrusion surface, gradually adding pressure to 13KN, holding pressure 1min.

Result: Do not afford fire, do not expl.