A battery performance evaluation method based on multi-dimensional hierarchical charging process

A technology of battery performance and charging process, applied in the direction of measuring electricity, measuring electrical variables, instruments, etc., can solve the problems of inability to meet the cascade utilization, unscientific, etc., and achieve the effect of avoiding asymmetry, high accuracy, and accurate evaluation results

Active Publication Date: 2022-01-07
蓝谷智慧(北京)能源科技有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is unscientific to simply evaluate and test the battery as a whole, and it cannot meet the requirements of cascade utilization

Method used

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  • A battery performance evaluation method based on multi-dimensional hierarchical charging process

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Embodiment 1

[0030] Such as figure 1 As shown, a battery performance evaluation method based on multi-dimensional hierarchical charging process, including the following steps:

[0031] (1) Establish battery evaluation algorithm, benchmark model and database

[0032] Collect and summarize relevant information about electric vehicles, taking BAIC BJEV EU260 as an example, and enter it into the database to retrieve the benchmark model for battery evaluation;

[0033] vehicle manufacturer BAIC New Energy car model EU260 battery manufacturer Beijing Pride Battery Co., Ltd. Cell manufacturer CATL New Energy Co., Ltd. Battery Type Ternary material battery system voltage 328.5V Battery system capacity 120Ah Cell nominal capacity 40 connection method 3P90S

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Abstract

The invention discloses a battery performance evaluation method based on the multi-dimensional step-by-step charging process, which includes collecting the basic information of the vehicle power battery system, entering it into a database, and evaluating the battery performance; the advantage of the invention is that: by analyzing the inherent characteristics of the battery Combined with real-time and historical data, it is compatible with different data sources and data types to achieve fast, accurate, multi-dimensional, and step-by-step evaluation of battery performance.

Description

technical field [0001] The invention relates to a battery performance evaluation method, in particular to a battery performance evaluation method based on a multi-dimensional step-by-step charging process, and belongs to the field of battery performance evaluation methods. Background technique [0002] With the rapid growth of the new energy industry in recent years, the amount of scrapped power batteries will also increase in the future. From 2015 to 2017, the sales of new energy vehicles in my country will continue to increase. According to the operating mileage of about 100,000-200,000 kilometers, the use of 3-5 years It is estimated that 300,000 vehicles will enter the used car market in 2019. According to the 8-year scrapping period, it is estimated that the amount of scrapping in 2019 will reach 322,000 tons. The market is huge, and the recycling and utilization of power batteries is imminent. [0003] For such a large amount of decommissioned batteries, according to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/3842G01R31/392
Inventor 张津伟李玉军车晓刚董海书由勇范凤松申子垒陈丽贝张绍贤李晓峰李鹏飞李阳
Owner 蓝谷智慧(北京)能源科技有限公司
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