Safety instructions for using lithium iron phosphate batteries on intelligent cleaning robots
Release Time:
Jan 26,2024
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The discharge performance of lithium iron phosphate batteries: At room temperature (-10~45 ° C), the battery can support up to 3km, but at high temperatures (referring to ambient temperatures of 50-60 ° C), the stroke will be affected. Although the discharge performance of lithium iron phosphate batteries is not resistant to high temperatures, their performance in terms of thermal stability (thermal failure) is much better than that of ternary lithium batteries. In the needle puncture test, the temperature of the lithium iron phosphate battery only increased to 400, and except for the phenomenon of smoking, the battery will not self ignite. Therefore, although the discharge performance of lithium iron phosphate batteries may weaken in high temperature environments above 50 ℃, from a safety perspective, the batteries can withstand normal summer high temperatures.
In addition, regarding the impact resistance performance of batteries, generally speaking, physical impact on the battery body is dangerous. The ignition, deflagration, and other phenomena of lithium batteries are mostly caused by the internal diaphragm piercing caused by impact deformation, and the short circuit of positive and negative electrodes generates a large amount of heat energy. The rapid release of energy in a closed space can easily form the above phenomena. It is precisely because of the safety of equipment operation that Detian's cleaning robot was designed with lithium iron phosphate batteries to reduce risks. It has the following safety characteristics:
-Lithium iron battery cells with low energy density;
-The grouping capacity is small (10-20Ah) and the energy is also small;
-Low charge discharge rate;
-The electrode material requires a high temperature for reaction and is not easily combustible;
-The battery pack is equipped with a protective plate to avoid overcharging and discharging;
In addition, in the assembly process, the battery is firmly fixed in the electrical box through a fixed strap, and the contact point strap is supplemented with soft materials for shock absorption, effectively buffering the impact of vibration.
Based on the above, the robot uses iron lithium batteries that balance energy density and safety, making outdoor use relatively safe.
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