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System and method for rapidly charging energy-feedback type lead-acid battery

A lead-acid battery, fast charging technology, applied in the field of electricity, can solve the problems of energy waste and consumption, achieve the effect of reducing energy loss, increasing charging speed, and prolonging the number of cycles

Inactive Publication Date: 2014-07-23
QINGDAO UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] However, in the existing positive and negative pulse charging method, the negative discharge pulse is generated by the parallel circuit discharge of the lead-acid battery to the resistor and the capacitor, and the energy in the capacitor is consumed by the resistor, and finally dissipated to the surrounding environment in the form of heat energy go, resulting in a waste of energy

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  • System and method for rapidly charging energy-feedback type lead-acid battery
  • System and method for rapidly charging energy-feedback type lead-acid battery
  • System and method for rapidly charging energy-feedback type lead-acid battery

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Embodiment Construction

[0019] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] refer to figure 1 , a fast charging system for an energy-feeding lead-acid battery, comprising an EMI filter circuit, a full-bridge rectifier filter circuit, a single-ended forward conversion circuit, a first voltage detection circuit, a first current detection circuit, a battery charge and discharge management main circuit, The second voltage detection circuit, the second current detection circuit, the auxiliary power supply A, the dedicated analog controller, the first comparison conditioning circuit, the first optocoupler, the auxiliary power supply B, the single-chip microcomputer control circuit, the second comparison conditioning circuit, the second optical Coupler, drive circuit and signal display.

[0021]The EMI filter circuit is used to filter out electromagnetic interference; the full-bri...

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Abstract

The invention discloses a system and method for rapidly charging an energy-feedback type lead-acid battery. Negative discharge pulses generated when the lead-acid battery discharges electricity to a circuit through which a resistor and a capacitor are connected in parallel is converted into front-end electrolytic capacitor charging feedback energy, electric energy stored in an electrolytic capacitor is then transmitted to the lead-acid battery when positive pulse charging is conducted, and the charging method has the energy conservation effect; as the second improvement, three triangular current waves are used for being equivalent to positive pulses and negative pulses generated through an existing positive and negative pulse type charging method, the problem of polarization in the rapid charging process of the lead-acid battery is further solved, the pressure, temperature and inductance inside the battery are decreased, energy loss is reduced, the charge acceptance capacity of the lead-acid battery is enhanced, electric energy is more effectively converted into chemical energy to be stored, charging efficiency is improved, the charging speed is further increased, charging time is shortened, the number of times of circulated use of the lead-acid battery is increased, and the system and the method are suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of electricity and relates to a charging method, in particular to a fast charging system and method for an energy-feeding lead-acid storage battery. Background technique [0002] The charging and discharging of lead-acid batteries is a complex electrochemical process. There are many factors that affect the charging during the charging process, such as the concentration of the electrolyte, the concentration of the active material on the plate, and the ambient temperature. The traditional charging methods include constant current charging, constant voltage charging, staged charging, etc. These charging methods have no depolarization measures, which will affect the charging time, capacity and service life of the battery. The positive and negative pulse charging method is a new charging method studied in recent years. After the positive pulse charging, stop charging for a period of time, and then discharge the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/10
Inventor 王春芳郑建芬朱世盘陈杰民
Owner QINGDAO UNIV
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