Check patentability & draft patents in minutes with Patsnap Eureka AI!

Measurement method and measurement device for resistance of electric power storage component

A technology of a storage element and a measuring device, which is applied in the direction of measuring devices, measuring resistance/reactance/impedance, measuring electricity, etc., can solve problems such as deterioration, and achieve the effects of ease and cost, reduction of measurement errors, and increase of detection voltage.

Inactive Publication Date: 2019-01-04
NIPPON CHIMI CON CORP
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This DCIR is not a fixed value, and it deteriorates according to the state of use and the time of use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Measurement method and measurement device for resistance of electric power storage component
  • Measurement method and measurement device for resistance of electric power storage component
  • Measurement method and measurement device for resistance of electric power storage component

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0054] As a first embodiment of the present invention, the method for measuring the resistance of an electric storage element may include the following steps: charging or discharging the electric storage element to be measured; and when the voltage of the electric storage element to be measured reaches a predetermined voltage, Stopping the charging or discharging of the power storage element to be measured; detecting the voltage of the power storage element to be measured at the time of stopping charging or discharging and the voltage of the power storage element being measured for a predetermined time from the time of stopping the charging or discharging. and amplifying the voltage difference; and calculating the resistance of the measured energy storage element using the amplified voltage.

[0055] The electricity storage element to be measured as a measurement object is not limited to capacitors such as electric double layer capacitors and hybrid capacitors, and may be a sto...

no. 2 Embodiment approach

[0059]As a second embodiment of the present invention, the device for measuring the resistance of an electrical storage element may include the following means: a charging and discharging control unit that charges or discharges the electrical storage element to be measured, and when the electrical storage element to be measured When the voltage reaches a predetermined voltage, the charging or discharging of the measured power storage element is stopped; the amplifying unit detects the voltage of the measured power storage element at the time of the stop of the charging or the discharge and the measured power storage element A voltage difference between voltages after a predetermined time from the stop of the charging or the discharging is amplified; a voltage measuring unit that measures an output voltage of the amplifying unit; and an arithmetic unit that uses The resistance of the power storage device to be measured is calculated from the output voltage of the amplification u...

no. 1 Embodiment

[0065] figure 1 The resistance measuring device of the electric storage device to be measured according to the first embodiment of the present invention is shown. figure 1 The shown structure is an example, and the present invention is not limited to this structure.

[0066] This resistance measuring device 2 includes a charge / discharge control unit 6 for the capacitor 4 to be measured, a voltage output circuit 8 , a differential amplifier 10 , a voltage measuring device 12 , and a resistance value calculation unit 14 .

[0067] The capacitor 4 to be measured is an example of a power storage element to be measured as a measurement object of DCIR (direct current internal resistance). Capacitor 4 to be measured is, for example, an electric double layer capacitor, or other capacitors, and may be a storage battery.

[0068] The charge / discharge control unit 6 is an example of charge / discharge control means for the energy storage element to be measured. The charge / discharge cont...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a measurement method and measurement device for the resistance of an electric power storage component. With the measurement method and measurement device adopted, the detection accuracy of the voltage change of a measured electric power storage component is improved, so that the reliability of the calculation result of DCIR (direct-current internal resistance) is improved. The measurement method includes the following steps that: a measured electric power storage component (a measured capacitor 4) is made to be charged or perform discharging; when the voltage ofthe measured electric power storage component reaches a predetermined voltage, the charging or discharging of the measured electric power storage component is stopped; voltage difference between the voltage of the measured electric power storage component at a charging or discharging stop time point and the voltage of the measured electric power storage component after a specified time period starting from the charging or discharging stop time point is detected, and the voltage difference is amplified through a differential amplifier (10); and the DCIR of the measured electric power storage component is calculated on the basis of a voltage which is obtained according to the amplified voltage difference.

Description

technical field [0001] The invention relates to resistance measurement technology of electric storage elements such as capacitors and rechargeable batteries. Background technique [0002] As an example of an electric storage element, a DC internal resistance (Direct-Current Internal Resistance, hereinafter referred to as "DCIR") in a capacitor and its characteristics are used as parameters representing the performance of the capacitor. Therefore, DCIR is extremely important in maintaining the performance of assembled equipment. This DCIR is not a fixed value, but deteriorates according to the state of use and the time of use. Therefore, for capacitors, it is necessary to measure DCIR at the time of manufacture and judge whether it is good or bad. In order to maintain the performance of assembly equipment, it is required to monitor the DCIR characteristics of capacitors from the time of assembly to after assembly. [0003] As for the measurement of this DCIR, there is know...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/08G01R31/389
CPCG01R27/08
Inventor 秋叶直树
Owner NIPPON CHIMI CON CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com