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How to quickly charge the UPS battery?

by:Vglory      2021-04-27
How to improve the fast charging of UPS power supply battery 1. Improve UPS power supply battery design to reduce ohmic internal resistance. According to the fast charging target specified by ALABC, if a 100Ah starting battery is required to charge the battery capacity from 20% to 50% within 5 minutes, then charge it The power is 100×(0.5-0.2)u003d30Ah, then the charging current should not be less than 30u0026pide;(5u0026pide;60)u003d360A, that is 3.6(A), at this time the battery ohm drops to 360×6×u003d0.216V, the battery voltage Reach 1.97+0.216+0.030+0.006u003d2.23V, and the gassing voltage is not reached, the battery can be safely charged. 2. Increasing the diffusion rate of reactive ions. This is to increase the diffusion current density of the UPS power battery, that is, to delay the time when the limit diffusion current of the battery appears during the charging process, that is, to delay the time for the battery voltage to reach the gassing voltage, thereby allowing increased charging Electric current, fast charging. Reducing the thickness of the electrode plate, the porosity of the new active material, and the contact area between the new grid and the active material are all conducive to the diffusion process of reactants and products, reducing concentration polarization, and increasing allowable charging The current value realizes fast charging. However, considering the life of lead-acid batteries, the plates cannot be made too thin. 3. Improving the charging method of UPS power battery. The theoretical basis of the pulse fast charging method is to superimpose negative pulses of a certain frequency, width, and height in the charging current or short-term stop charging, so that the ions participating in the reaction can be generated and improved. The concentration allows the generated sum ions to move away from the vicinity of the electrode surface. The overall effect is to reduce the concentration polarization, allowing the charging current to be increased and the charging time to be shortened. 4. Pulse charging method. This charging method not only follows the inherent charging acceptance rate of UPS power batteries, but also improves the battery charging acceptance rate, thereby breaking the limit of the battery exponential charging acceptance curve. This is also a new development of battery charging theory. The pulse charging method first charges the battery with pulse current, and then stops the battery charging for a period of time, and so on. The UPS battery can absorb more power. The intermittent pulse enables the battery to have a sufficient reaction time, reduces the amount of gassing, and improves the charging current acceptance rate of the battery. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What types of UPS batteries are there?
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