Intelligent activated lithium battery charging device

Abstract

The invention discloses an intelligent activated lithium battery charging device. The intelligent activated lithium battery charging device is mainly loaded with an action circuit which is composed of a charging power supply input end, a charging power supply controlling output end, a charging gate control circuit, a discharging gate control circuit, a discharge quantity consumption circuit and a control circuit from a shell, the control circuit contains a microprocessor, and all parts form a connection architecture. The charging power supply input end is connected with an output end of the conventional external charging power supply circuit; the charging power supply controlling output end is connected with a charging terminal of the conventional external charged device; an input end of the charging gate control circuit is supplied by a DC charging power supply output by the conventional external charging power supply circuit through the charging power supply input end, while an output end is branched into three; and a first output point of the control circuit is connected to a gate control end of the charging gate control circuit, a second output point of the control circuit is connected to a gate control end of the discharging gate control circuit, and a power supply input end of the control circuit is supplied by the DC charging power supply of the conventional external charged device through the charging power supply input end. The intelligent activated lithium battery charging device achieves battery over-voltage protection.

Description

technical field [0001] The invention relates to a charging device, in particular to an intelligent activated lithium battery charging device. Background technique [0002] Since lithium batteries have a longer standby time than ordinary rechargeable batteries after charging, many chargers such as mobile phones, notebook computers, digital cameras, and rechargeable electric drills have recently used lithium batteries as charging and discharging power sources. However, after a period of time, the endurance of lithium batteries will gradually decrease after each charge, which is commonly known as battery aging. The main reason for battery aging is that after the electrode undergoes long-term stable multiple chemical reactions, the deposition on the electrode surface reduces the effective area of ​​the electrode to perform chemical reactions, and the deposition on the electrode surface forms an increase in the equivalent impedance of the input and output. [0003] When the batt...

AI Technical Summary

Problems solved by technology

[0006] At present, only billions of mobile phones are in use in the market, and the use of lithium batteries will encounter the aging process. The battery capacity of mobile phone batteries can decline within two years, and the battery capacity of some poor-quality batteries declines faster. It is even more felt that users often feel that the battery life is insufficient due to the aging of the battery, and it is a pity to replace the battery because it is expensive. Sometimes, even because the mobile phone model is replaced quickly, the original battery model of the mobile phone is discontinued, and it is not easy to buy. To replace the new battery, the entire mobile phone has to be discarded for replacement. Globally speaking, the number of scrapped batteries is astonishing, and people develop the habit of easily discarding rechargeable electrical appliances, which increases the pollution load of unnecessary waste items on the environment. It is everyone's trouble. If these aging batteries can be fully charged, and the batteries can be gradually activated during each charging process, this can greatly prolong the service life of the batteries, and it is beneficial to the personal, earth resources, and Earth's environmental protection will be of great help

[0007] At present, mobile phone chargers such as travel chargers are required to be small and easy to carry, so that their functions are very simple, just like the step-down charger (also known as AC to DC circuit) plugged into the mains 110V socket, or plugged into the car battery. The DC buck-boost charger (also known as DC to DC circuit) of the cigarette lighter socket and the computer USB power socket, and then the built-in protection circuit of the lithium battery is used to protect the abnormal voltage, temperature, and current, and the mobile phone itself does it Fully charged control and display. In addition, for battery charging, the charging time is also an important point. In order to shorten the charging time, the travel charger also charges the battery with DC current after voltage transformation and step-down. The DC charging efficiency of new batteries can be very high, but the only disadvantage is that there is no activation function for each charging, which will lead to a sudden decrease in battery life after recharging after a period of use, which is very unsatisfactory.

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