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A multi-stage intelligent charging method

An intelligent charging method and multi-stage technology applied in the charging field of rechargeable batteries to prevent shock, prolong battery life and restore battery capacity

Active Publication Date: 2015-08-19
SHANGHAI POWER STATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

About the charging method of the present invention for rechargeable battery, there is no report yet

Method used

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  • A multi-stage intelligent charging method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0044] Taking a 12V battery and a 10A charger as an example, the full voltage of the 12V battery is 14.6V. For the multi-stage intelligent charging method for aging batteries, please refer to figure 1 The charging curve diagram includes the following steps:

[0045] (1) Diagnosis, detecting the battery voltage, and judging the next action of the charger;

[0046] (2) Pulse desulfurization, remove the sulfide on the battery plate with pulse current and voltage, and restore the battery capacity;

[0047] (3) Precharge, when the battery voltage is lower than 12V, in order to protect the battery, charge the battery with a small current until the battery voltage reaches a safe value;

[0048] (4) Soft start, the charging current rises slowly from small to large, preventing the sudden change of charging current from impacting the battery and protecting the battery;

[0049] (5) Constant current one, charge the battery with current I1 until the battery voltage reaches 13.6V;

[0...

Embodiment 2

[0065] Taking a 12V battery and a 10A charger as an example, the full voltage of the 12V battery is 14.6V. For the multi-stage intelligent charging method for normal batteries, please refer to image 3 The charging curve diagram includes the following steps:

[0066] (1) Diagnosis, detecting the battery voltage, and judging the next action of the charger;

[0067] (2) Soft start, the charging current rises slowly from small to large, preventing the sudden change of charging current from impacting the battery and protecting the battery;

[0068] (3) Constant current one, charge the battery with current I1 until the battery voltage reaches 13.6V;

[0069] (4) Constant current 2, charge the battery with current I2 until the battery voltage reaches 14V;

[0070] (5) Constant current three, charge the battery with current I3 until the battery voltage reaches the full voltage of 14.6V;

[0071] (6) Constant voltage, the battery voltage remains unchanged, slowly reduce the chargi...

Embodiment 3

[0077] Taking a 12V battery and a 10A charger as an example, the full voltage of the 12V battery is 14.6V. For the multi-stage intelligent charging method for normal low-voltage batteries, please refer to Figure 4 The charging curve diagram includes the following steps:

[0078] (1) Diagnosis, detecting the battery voltage, and judging the next action of the charger;

[0079] (2) Pre-charging, when the battery voltage is lower than 12V, in order to protect the battery, charge the battery with a small current until the battery voltage reaches a safe value;

[0080] (3) Soft start, the charging current rises slowly from small to large, preventing the sudden change of charging current from impacting the battery and protecting the battery;

[0081] (4) Constant current one, charge the battery with current I1 until the battery voltage reaches 13.6V;

[0082] (5) Constant current 2, charge the battery with current I2 until the battery voltage reaches 14V;

[0083] (6) Constant ...

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Abstract

The invention discloses a multistage intelligent charging method which is suitable for rechargeable batteries. The multistage intelligent charging method comprises a diagnosis step of detecting the voltage of a battery, a soft starting step of enabling charging current to slowly rise from low to high, steps of performing charging under constant current I, charging under constant current II, charging under constant current III, charging under constant voltage, full charging and recharging, and steps of performing pulse devulcanization, precharging and high-voltage restoration. The multistage intelligent charging method has the precharging function and the soft starting function, so that damage, caused by high current, to the normal battery can be alleviated, and the service life of the battery can be prolonged; due to the devulcanization function, the capacity of a battery which is severely vulcanized can be improved; by virtue of the restoration function, the capacity of an aged battery can be recovered.

Description

technical field [0001] The invention relates to a charging method for a rechargeable battery, in particular to a multi-stage intelligent charging method. Background technique [0002] Rechargeable batteries, especially lead-acid batteries (6V, 12V, 24V) are widely used in daily life, and correct and good charging methods can ensure the battery life. How to charge the battery better, how to charge to reduce the damage to the battery, how to repair the battery and prolong the life of the battery have become problems that people need to consider and solve. The patent document with the application number 201210275223.X discloses a multi-stage battery module charging method and its device. The method is to divide the constant current charging into several stages, and each stage has a different current value and charging time. When the charging reaches a predetermined voltage After that, charge at a constant voltage. This charging method can stabilize voltage and improve battery...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/44H02J7/00
CPCH01M10/446H02J7/007Y02E60/10
Inventor 范振明叶远军武强
Owner SHANGHAI POWER STATION
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