Universal quick charging method for chargeable battery

A rechargeable battery and fast charging technology, which is applied to battery circuit devices, energy-saving charging equipment, current collectors, etc., can solve the problems of low charging efficiency, slow charging speed, and reduced battery life, and achieve fast charging speed and high charging efficiency. High, small temperature rise effect

Inactive Publication Date: 2004-11-10
时彤
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  • Application Information

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Problems solved by technology

Generally speaking, the charging methods of rechargeable batteries are mostly constant current charging, constant voltage charging and the combination of these two charging methods. These methods have the advantages of simple charging circuit and easy charging method, but they also have the advantages of slow charging speed, Low charging efficiency, shortened battery life and fast charging with high current can easily cause the battery temperature to be too high
With the development and progress of semiconductor components, some more complex charging methods have become possible through the use of integrated circuits and microprocessors. These charging methods can char

Method used

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  • Universal quick charging method for chargeable battery
  • Universal quick charging method for chargeable battery
  • Universal quick charging method for chargeable battery

Examples

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[0016] Example: As shown in the figure, first measure the open circuit voltage of the battery, and then apply a small current (current less than or equal to 1.5C charging rate) to the battery for a certain period of time (5 milliseconds to 5 minutes long), and then stop charging 0- For 5 minutes, measure the battery voltage when the current is applied, the voltage change during the application of the current, and the open circuit voltage after the application of the current. Combine the above measurements (all or part) to determine whether the battery is damaged or fully charged, and it can also be judged Whether it is a rechargeable battery and the type of battery to be charged. If it is determined that it is the type of battery to be charged and can be charged, the charging current or charging voltage shown in Figure 4 is used for charging. Charge each or a group of different currents for a certain period of time, and then apply small current or zero current for a certain period...

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Abstract

The invention discloses a universal fast charging method of batteries which can be charged, measuring receivable extent from battery to current to determine the magnitude and turn-on/off of corresponding charging current, by this, during charging, it can effectively avoid or reduce marginal reactions such as electrolyte electrolysis in a battery, current charging effect enhancement, etc; it can reduce electrode polarization phenomenon, and enhance charging efficiency by finding a charging current according with or lighter than battery charging extent; it also includes intermittent charging method and short-time reversely charging to effectively reduce the phenomena of electrode polarization and heating of battery during charging.

Description

technical field [0001] The invention relates to a charging method for a rechargeable battery. Background technique [0002] The charging methods and devices for various rechargeable batteries are a relatively mature field. Generally speaking, the charging methods of rechargeable batteries are mostly constant current charging, constant voltage charging and the combination of these two charging methods. These methods have the advantages of simple charging circuit and easy charging method, but they also have the advantages of slow charging speed, The disadvantages of low charging efficiency, reduced battery life and fast charging with high current can easily cause the battery temperature to be too high. With the development and progress of semiconductor components, some more complex charging methods have become possible through the use of integrated circuits and microprocessors. These charging methods can charge batteries more quickly and effectively. For example, US patents U...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCY02E70/40Y02E60/10
Inventor 时彤
Owner 时彤
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