Lithium-ion batteries are widely used because of their light weight, large capacity, and no memory effect—many digital devices today use lithium-ion batteries as power sources, although they are relatively expensive. Lithium-ion batteries have high energy density, their capacity is 1.5 to 2 times that of nickel-metal hydride batteries of the same weight, and they have a very low self-discharge rate. In addition, lithium-ion batteries have almost no "memory effect" and the advantages of no toxic substances are also important reasons for their widespread use.

리튬 이온 배터리 안전 성능

Please pay attention to the safety of lithium-ion batteries. Lithium-ion batteries are prone to short circuits during charging. While most Li-ion batteries come with protection circuits against short circuits, there are also explosion proof cords. But this circuit may not necessarily be useful in various situations. The use of explosion-proof wire is also limited. So, what conditions should lithium-ion batteries meet in terms of safety performance?

Safety Features of Lithium-Ion Batteries

Regarding the assessment indicators of the safety performance of lithium-ion batteries, very strict standards are stipulated internationally. A qualified lithium-ion battery should meet the following conditions in terms of safety performance:

1. Short circuit: no fire, no explosion

2. Overcharge: no fire, no explosion

3. Hot box experiment: no fire, no explosion (150℃ constant temperature for 10min)

4. Needle prick: no fire, no explosion (penetrate the battery with Ф3mm nails)

5. Flat impact: no fire, no explosion (10kg weight hits the battery from a height of 1M)