Ruixue Zhaofeng years, the grain is harvested; half-seven here I wish you all the best in the new year, good luck, good luck, want to come!
Near the Spring Festival, most of the country also ushered in a heavy snow, this temperature is also the brush down, the big cotton jacket, down jacket, screaming up ~~~ people if frozen This body is uncomfortable and affects health. If the battery used in the plant protection drone is "frozen", it will not be normal~~~~(OK, enter the main article)
What is the significant impact of low temperature on plant protection drone batteries ?
First of all, everyone knows that the damage to the plant protection battery is very high, especially in the three days, the small partners who are out of the operation have a deep understanding, because the plant protection battery belongs to the category of high-rate lithium batteries, when working again, due to the large The current and the influence of the weather environment, the speed of the internal temperature rise of the battery is obvious. When the internal temperature of the battery exceeds 45 °C, the chemical balance inside the battery is directly destroyed. The essence of the charge and discharge process of the battery is actually a chemical reaction, and the high temperature directly leads to Internal molecules produce some side reactions that directly affect the life of the battery;
The direct effect of low temperature on the battery is that the discharge performance of the battery will be greatly attenuated, which is commonly known as "the rate is not reached". This is because, among all environmental factors, the temperature affects the charge and discharge performance of the lithium battery. Extremely, the electrode and electrolyte are regarded as the heart of the battery. If the temperature drops, the reaction rate of the electrode will also decrease. If the battery's own voltage remains constant, then the battery's own power decreases with the temperature. The output will also decrease, and the diffusion rate of lithium ions in the carbon negative electrode will be slower. It is easy to have lithium precipitation, which is the so-called "extraction of lithium" in the industry. It is convenient for everyone to understand. Definition;
"Definition of Lithium Analysis"
Lithium-ion batteries can no longer charge the battery in an environment where the temperature is lower than 0 °C. Although it shows that the charging is normal, there is a phenomenon of metal lithium precipitation on the surface of the anode. This process is irreversible. If the battery is recharged at low temperature, the battery may be damaged. To reduce the safety of the battery, especially by external extrusion, impact, etc.;
Classroom summary
1. Plant protection battery can not be directly charged under low temperature conditions. It is best to use physical heating. Wait until the battery temperature rises to about 10 °C to charge. As for the discharge, this does not require (after all, the low temperature environment, discharge performance) Reduce, the current does not meet the take-off requirements of the aircraft, and your aircraft can't fly.)
2, remember to handle lightly, collide and squeeze at low temperature, the damage to the battery itself is extremely high
3. When storing the battery for a long time, the plant protection battery should be placed in a sealed explosion-proof box. The temperature environment is recommended to be 10 °C ~ 25 °C.
PS: So the effect of temperature on the whole battery is very huge. The small partners in the plant protection industry must control the battery temperature well, the control is good, the battery life is longer, and the control is not good. This battery is also fast ~~~~~
Oh, yes, half a sensation, the new Ouhe series smart battery from Zhengfang Technology will add temperature control protection, automatic heating and other functions.
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