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Excess temperature protection method of battery module

A battery module, over-temperature protection technology, used in the repair/maintenance of secondary batteries, secondary batteries, battery pack components, etc.

Inactive Publication Date: 2008-06-25
ADVANTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the technical problem that the present invention intends to solve is to actively detect the ambient temperature of the entire application system and the temperature generated by the battery module itself through simple hardware circuit and design, so as to control the charging and discharging of the battery module , the switch of the application system, or even generate warning information, etc., to achieve the purpose of automatic protection measures for the battery module when the temperature is too high or too low, thereby reducing the characteristic attenuation or damage of the battery module

Method used

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Embodiment Construction

[0021] figure 1 It is a block diagram of an embodiment of an over-temperature protection device for a battery module of the present invention. As shown in the figure, the present invention provides an over-temperature protection device 1, which is applied to an application system 2 and used as an over-temperature protection for a battery module 50 Measures, wherein, the battery module 50 is, for example, a lead acid battery (Lead Acid Battery), a nickel cadmium battery (Nickel Cadmium Battery), a nickel metal hydride battery (Nickel Hydrogen Battery), a lithium ion battery (Lithium Ion Battery) or a polymer lithium battery ( Polymer Lithium Battery), and the battery module 50, in addition to providing the power required for the application system 2, can also pass through the components contained therein such as: a thermistor (Thermistor), a thermal diode (Thermal Diode) or a thermocouple ( Thermal Couple) (not shown), to sense the internal temperature of the battery module 50 ...

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Abstract

The invention relates to an over-temperature protection method of a battery module, which is applied to an application system. The invention is characterized in that the over-temperature protection method comprises the following steps: firstly, whether the internal temperature of the battery module is higher than a first setting value or lower than a second setting value or not is judged, if the internal temperature of the battery module is higher than the first setting value or lower than the second setting value, whether the battery module is in the charging state or not is judged, if the battery module is in the charging state, a first switching unit is turned off to stop the charging state, and a second switching unit is turned off to stop the power supply of the battery module to the application system; therefore the purpose that the protective measures are performed to the battery module because of over high temperature or over low temperature is attained.

Description

technical field [0001] The invention relates to an over-temperature protection method, in particular to an over-temperature protection method applied to a battery module. Background technique [0002] In recent years, due to the rapid development of the 3C industry, the application of batteries has become more extensive. In order to meet the needs of various powerful products and long-term use, various companies have introduced solutions to increase battery efficiency and extend battery life. Program. [0003] And we all know that temperature has a great relationship with the storage capacity and life of the battery. Since the migration rate of the battery in the electrolyte and the electrode sheet is closely related to the temperature, the fluctuation of the temperature will significantly affect the characteristics of the battery. Therefore, the battery The temperature during storage or charging and discharging is limited to a certain extent. For example, due to the liquid...

Claims

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Application Information

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IPC IPC(8): H01M2/34H01M10/42H01M10/48H01M10/44H01M10/50H01M10/617H01M10/633H01M10/637H01M50/581
CPCY02E60/10
Inventor 游经东许博承
Owner ADVANTECH CO LTD
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