A battery charging method and a battery charging device

A technology of battery charging and battery voltage, applied in battery circuit devices, secondary battery charging/discharging, circuit devices, etc., can solve problems such as battery consumption, and achieve the effect of economical hardware design and low maximum power requirements

Active Publication Date: 2016-03-02
EMERSON NETWORK POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a battery charging method and device, which can effectively reduce the battery loss during the charging process, in view of the defect that the battery is easily consumed during the charging process of the existing battery.

Method used

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  • A battery charging method and a battery charging device
  • A battery charging method and a battery charging device
  • A battery charging method and a battery charging device

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0040] see Figure 4 , is a flowchart of a battery charging method according to a preferred embodiment of the present invention. The battery charging method is especially suitable for lead-acid batteries. Such as Figure 4 As shown, the battery charging method provided by this embodiment includes the following steps:

[0041] First, in step S1, with the maximum constant current I set Charge the battery with a constant current so that the battery voltage V BA reaches the first preset voltage V 1 . Preferably, the maximum constant current I set 10% to 20% of battery capacity. The maximum constant current I set Not less than 10% of the battery capacity, so that most of the charge can be charged to the battery in a short charging time, and at ...

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Abstract

The invention relates to a battery charging method and a battery charging device. The method includes S1) a step of subjecting a battery to constant-current charging with a maximum constant-current current to allow the voltage of the battery to reach a first preset voltage; S2) a step of charging the battery by a current control manner to allow the voltage of the battery to reach a second preset voltage, with the charging current being controlled to be gradually decreased along with increase of the voltage of the battery; and S3) a step of charging the battery through pulse circulation to allow the voltage of the battery to reach the nominal voltage. The charging current is decreased according to the voltage of the battery after large-current constant-current charging, thus ensuring the charging efficiency of the battery, and avoiding use of too much charging current on water decomposition at the same time. Polarization is reduced through the pulse circulation. Requirements on the maximum power of charging control are low. Hardware design is more economical.

Description

technical field [0001] The invention relates to the technical field of battery charging, and more specifically relates to a battery charging method and a battery charging device, which can reduce the loss of rechargeable batteries. Background technique [0002] The service life of a maintainable lead-acid battery has a lot to do with the charging method of the battery, and the general charging method is realized through the control unit according to the designed charging curve. Therefore, the optimization and improvement of the charging curve of the lead-acid battery can achieve better charging effect and prolong the service life of the battery. [0003] The common failure causes of maintainable lead-acid batteries are: (1) The active material attached to the battery electrode gradually falls off; (2) The temperature of the battery electrolyte is high, which is prone to thermal runaway, and high temperature has an adverse effect on the life of the internal unit materials of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H02J7/00
CPCY02E60/10
Inventor 许晓李晨光
Owner EMERSON NETWORK POWER CO LTD
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