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Intelligent activating method for accumulator

A battery and battery pack technology, applied in secondary battery charging/discharging, secondary battery repair/maintenance, etc., can solve problems such as inability to guarantee accuracy, lack of scientific basis for manual judgment, and high professional skills requirements for operators. The effect of reducing professional skill requirements, reducing activation time, and improving activation efficiency

Inactive Publication Date: 2009-12-16
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the battery charger products on the market have single functions and can only charge specific types of batteries. Although a few products have an activation function, users need to manually set many parameters, such as activation times, charging rate, and discharge. The choice of rate, charging strategy, discharge termination voltage, etc. requires high professional skills of the operator. In addition, whether the battery needs to be activated before charging needs to be determined by the operator, and manual judgment lacks scientific basis, and the accuracy cannot be guaranteed. If professional testing is used The equipment tests the batteries one by one in advance, which is time-consuming and laborious, and the efficiency is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: Input the type data of a battery pack (model 20GNYG4.5) to be activated to the main control CPU of the charger, and perform constant current at a rate of 0.5C for the battery pack (model 20GNYG4.5) to be activated Voltage-limited charging operation (because this type of battery is prone to memory effect, the remaining power has been discharged before charging), during the charging process, the voltage negative incremental method is used to detect its charging state, when the charging is carried out for 1 hour, the battery terminal A voltage drop of 100 millivolts gradually appeared, indicating that the battery was fully charged this time. At this time, the main control CPU records the number of ampere hours C used for charging 1 =0.5C×4.5×1=2.25Ah, equal to the nominal capacity C of the battery 0 = 0.5 times of 4.5Ah, the battery needs to be activated to restore its capacity, and the main control CPU controls the battery to automatically enter the activat...

Embodiment 2

[0037] Embodiment 2: Input the type data of a certain type of equipment battery pack (model 20GNYG4.5) to be activated to the main control CPU of the charger, and perform constant current at a rate of 0.2C for the battery pack to be activated (model 20GNYG4.5) Voltage-limited charging operation (because this type of battery is prone to memory effect, so the remaining power has been discharged before charging), the charging state is detected by the voltage negative increment method during the charging process, and the battery terminal is charged after 3.5 hours. A voltage drop of 100 millivolts gradually appeared, indicating that the battery was fully charged this time. At this time, the main control CPU records the number of ampere hours C used for charging 1 =0.2C×4.5×3.5=3.15Ah, equal to the nominal capacity C of the battery 0 = 0.7 times of 4.5Ah, the battery needs to be activated to restore its capacity, and the main control CPU controls the battery to automatically enter...

Embodiment 3

[0040] Embodiment 3: Input the type data of a battery pack (model 20QNY7.0) to be activated to the main control CPU of the charger, and perform constant current at a rate of 0.5C for the battery pack (model 20QNY7.0) to be activated Voltage-limited charging operation (assuming that the remaining power has been discharged before charging), during the charging process, the voltage zero-increment method is used to detect the charging state. When the charging is carried out for 1 hour, the battery terminal voltage does not rise and has a downward trend. Indicates that the battery is fully charged this time. The main control CPU records the number of ampere hours C used for charging 1 =0.5C×7.0×1h=3.5Ah, equal to the nominal capacity C of the battery 0 = 0.7 times (less than 0.8 times) of 7.0Ah, the main control CPU automatically controls the battery to enter the active working mode to restore its capacity. The specific activation process is as follows:

[0041] The first cycle:...

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Abstract

The invention belongs to the technical field of accumulator, and relates to an intelligent activating method for an accumulator. The invention simplifies the professional activating operation to the normal charging / discharging operation of the battery, which comprises: comparing the charging AH of the accumulator to be activated with the norminal capacitance by a master control CPU of a charger; determining whether the accumulator enters into activation mode; when the master control CPU determines, automatically entering the circulation mode of discharging firstly and then charging; during the activation mode, detecting the activation recovery condition continuously by the master control CPU; exiting the activation mode instantly when determining the accumulator is activated, and charging the accumulator. The invention prevents decline of battery discharge capacity caused by directly charging batteries of declined capacity as a result of manual misjudgement, and lowers professional skill requirement to the operators. The activating method is scientific and is capable of prolonging the service life of the accumulators, the batteries pack after activation is in a fully charged state and is capable of being used for equipment directly.

Description

Technical field [0001] The invention belongs to the technical field of accumulators and relates to an intelligent activation method for accumulators, which is especially suitable for the activation treatment of nickel-cadmium and nickel-hydrogen accumulator sets. Background technique [0002] In various fields of the national economy, batteries are widely used. Due to factors such as memory effect and internal resistance increase caused by unreasonable charge and discharge or maintenance during use and storage, the capacity and life of batteries are greatly reduced, and even unusable Phenomena often occur, which in turn affects the performance of the equipment. Therefore, timely and necessary maintenance must be carried out to the storage battery. Activation is an important part of battery maintenance. Activation can improve the availability of battery packs and reduce battery damage. [0003] At present, most of the battery charger products on the market have a single func...

Claims

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Application Information

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IPC IPC(8): H01M10/42H01M10/44
CPCY02E60/12Y02E60/10
Inventor 程庆生
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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