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Battery Sorting Method Based on Working Condition Test and Simplified Impedance Spectroscopy Equivalent Circuit Model

A technology of equivalent circuit model and impedance spectrum, which is applied in the direction of measuring electricity, measuring electrical variables, sorting, etc., can solve problems such as low reliability, slow battery sorting speed, and few sorting parameters

Active Publication Date: 2017-07-28
HARBIN INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] However, these battery sorting methods generally have the problems of slow battery sorting speed, low reliability, and few sorting parameters.

Method used

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  • Battery Sorting Method Based on Working Condition Test and Simplified Impedance Spectroscopy Equivalent Circuit Model
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  • Battery Sorting Method Based on Working Condition Test and Simplified Impedance Spectroscopy Equivalent Circuit Model

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specific Embodiment approach 1

[0110] Specific implementation mode 1. Combination figure 1 To illustrate the specific implementation mode, the present invention discloses a dynamic sorting method for power batteries, including steps: A) simultaneously charge or discharge multiple batteries to be sorted; B) detect in real time whether multiple batteries are charging or discharging The voltage value at the start time and the voltage value at the end time of a specific time period before the end of the discharge operation, so as to obtain the difference between the voltage value at the start time and the voltage value at the end time of multiple batteries in a specific time period before the end of the charging or discharging operation ; C) Using the difference between the voltage value at the start moment and the voltage value at the end moment of the battery at a specific time period before the end of the charging or discharging operation as a standard, sorting and matching multiple batteries to form multiple...

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Abstract

The invention discloses a battery sorting method based on working condition testing and a simplified impedance spectroscopy equivalent circuit model, relates to a battery sorting method, and aims to improve the speed and the reliability in battery sorting. The battery sorting method comprises the following steps: (A) performing charge or discharge operation on a plurality of batteries to be sorted; (B) detecting initial time voltage values and ending time voltage values of the plurality of batteries within a specific time section before the charge or discharge operation is ended in a real-time manner, so as to respectively obtain the difference between the initial time voltage values and ending time voltage values of the plurality of batteries within the specific time section before the charge or discharge operation is ended; (C) by taking the difference between the initial time voltage values and ending time voltage values of the batteries within the specific time section before the charge or discharge operation is ended as the standard, sorting and grouping the plurality of batteries, so as to form a plurality of battery packs. The battery sorting method is applicable to battery sorting.

Description

technical field [0001] The invention relates to a battery sorting method. Background technique [0002] At present, there are mainly the following public documents for battery sorting technology: [0003] Publication No. CN102343334, titled "A Dynamic Sorting Method and System for Power Batteries"; [0004] The publication number is CN102886352, and the title is "A Method for Sorting Groups of Lithium Iron Phosphate Batteries"; [0005] Publication No. CN103560277, titled "A Method for Reorganizing and Sorting Decommissioned Electric Vehicle Batteries"; [0006] The publication number is CN103769374, and the name is "Sorting Method for Lithium Ion Batteries"; [0007] Publication No. CN103817091, titled "Battery Sorting Method and System"; [0008] However, these battery sorting methods generally have the problems of slow battery sorting speed, low reliability, and few sorting parameters. Contents of the invention [0009] The purpose of the invention is to improve th...

Claims

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Application Information

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IPC IPC(8): G01R31/36B07C5/344
Inventor 朱春波李晓宇逯仁贵王婷婷
Owner HARBIN INST OF TECH
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