Li Ion Battery 12V 24V 36V 20AH Lithium Ion Battery Pack Customized 18650 battery For Electric Bike
|Model||18650 li-ion battery pack|
|Voltage||12V 24V 36V|
|Discharge cut-off voltage||21V|
|Maximum Charge voltage||29.4V|
|Standard charge current||0.5C|
|Standard discharge current||1C|
|Working temperature||Charge:0-60 degree|
|Storage temperature||minus 20 – 55 degree|
But that theoretical promise has been limited in practice because of three issues: the need for high voltages for charging, a low efficiency with regard to getting back the amount of energy put in, and low cycle lifetimes, which result from instability in the battery’s oxygen electrode. Researchers have proposed adding lithium iodide in the electrolyte as a way of addressing these problems. But published results have been contradictory, with some studies finding the LiI does improve the cycling life, “while others show that the presence of LiI leads to irreversible reactions and poor battery cycling,” Shao-Horn says.
Previously, “most of the research was focused on organics” to make lithium-air batteries feasible, says Michal Tulodziecki, the paper’s lead author. But most of these organic compounds are not stable, he says, “and that’s why there’s been a great focus on lithium iodide [an inorganic material], which some papers said helps the batteries achieve thousands of cycles. But others say no, it will damage the battery.” In this new study, he says, “we explored in detail how lithium iodide affects the process, with and without water,” a comparison which turned out to be significant.