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Battery performance evaluation device, electronic apparatus, charger, and battery performance evaluation method

A technology for battery performance and electronic equipment, applied in battery circuit devices, different battery charging, circuit devices, etc., can solve problems such as difficult battery characteristics

Pending Publication Date: 2022-01-11
TOYO SYSTEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in order to describe the transient response waveform of the voltage for several seconds or more, the capacitance value of the capacitor as the time constant element has to use a value of hundreds of F to several thousand F.
Such a value cannot correspond to the AC impedance and its equivalent circuit model, which is an evaluation method of the AC characteristics of the battery, and it is difficult to say that it reproduces the characteristics of the battery.

Method used

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  • Battery performance evaluation device, electronic apparatus, charger, and battery performance evaluation method
  • Battery performance evaluation device, electronic apparatus, charger, and battery performance evaluation method
  • Battery performance evaluation device, electronic apparatus, charger, and battery performance evaluation method

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no. 1 approach

[0040] (Structure of battery performance evaluation system)

[0041] figure 1 The battery performance evaluation system shown as the first embodiment of the present invention is composed of a battery performance evaluation device 100 and an electronic device 200 that can communicate with each other via a network. The battery performance evaluation device 100 is composed of one or more servers capable of accessing the database 10 . The battery performance evaluation device 100 evaluates the performance of the secondary battery 240 mounted on the electronic device 200 as a power source.

[0042] The battery performance evaluation device 100 includes a first control unit 110 , a second control unit 120 , and a third control unit 130 . The first control unit 110, the second control unit 120, and the third control unit 130 are respectively composed of a processor (operation processing device), a memory (storage device), an I / O circuit, and the like.

[0043] In addition to vario...

no. 2 approach

[0092] (Structure of battery performance evaluation system)

[0093] Figure 8The battery performance evaluation system shown as the second embodiment of the present invention is composed of a battery performance evaluation device 100 , an electronic device 200 , and a charger 400 . The battery performance evaluation device 100 can communicate with the charger 400 .

[0094] The charger 400 includes a charger control device 420 and a current generating device 430 . The charger control device 420 includes a first charger control unit 421 , a second charger control unit 422 , and a third charger control unit 423 . The first charger control unit 421 , the second charger control unit 422 and the third charger control unit 423 are respectively composed of a processor (operation processing device), a memory (storage device), and an I / O circuit. Various data such as measurement results of the voltage response characteristics of the secondary battery 240 are stored in this memory o...

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Abstract

The invention provides a device and the like capable of improving the convenience of performance evaluation of a secondary battery. The performance of a secondary battery (240) mounted on an electronic device (200) is evaluated by a battery performance evaluation device (100) on the basis of communication between the electronic device (200) and / or a charger (400) to which the electronic device (200) is connected and the battery performance evaluation device (100), and the battery performance information Info (D) corresponding to the evaluation result is output by an output interface (204) of the electronic device (200). Therefore, the user can grasp the performance evaluation result of the secondary battery (240) without having to take the electronic device (200) or the secondary battery (240) to a professional institution or the like, and thus the convenience of the electronic device (200) to the user can be improved.

Description

[technical field] [0001] The present invention relates to a technique for evaluating the performance of secondary batteries such as lithium ion batteries. [Background technique] [0002] The equivalent circuit is constructed by connecting the internal resistance of the secondary battery in multiple stages with the parallel circuit of the resistance R and the capacitance C, and the change of the behavioral waveform of the current-voltage is discussed. However, in order to describe the voltage transient response waveform of several seconds or more, the capacitance value of the capacitor as a time constant element has to use a value of several hundred F to several thousand F. Such a value cannot correspond to the AC impedance and its equivalent circuit model, which is an evaluation method of the AC characteristics of the battery, and it is difficult to say that it reproduces the characteristics of the battery. [0003] As a characteristic item of the secondary battery, there i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/385G01R31/389G01R31/378G01R31/367G01D21/02
CPCG01R31/385G01R31/389G01R31/378G01R31/367G01D21/02Y02E60/10H02J7/00034H02J7/0047H02J7/005H02J13/00028H01M10/4285G01R31/392G01R31/371G01R19/0038G01R31/388H02J7/00041
Inventor 宗像一郎猪狩俊太郎庄司秀树
Owner TOYO SYSTEM CO LTD