Cell health state estimation method, device and system

A technology for battery health status and health status, which is applied in measurement devices, measurement of electricity, and measurement of electrical variables, etc., can solve the problems of battery health status data uncertainty, long verification test cycle, and test occupied resources.

Inactive Publication Date: 2019-09-20
BEIJING HYPERSTRONG TECH
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  • Abstract
  • Description
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Problems solved by technology

[0004] At present, the service life of the battery is as long as several years, which causes the test to occupy a lot of resou

Method used

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  • Cell health state estimation method, device and system
  • Cell health state estimation method, device and system
  • Cell health state estimation method, device and system

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances ...

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Abstract

The invention provides a cell health state estimation method, device and system. The method comprises the following steps of acquiring a cell parameter; calculating calendar life decay and cycle life decay of a cell according to the cell parameter; and estimating a current health state of the cell according to the calendar life decay and the cycle life decay of the cell. In the invention, the current health state of the cell can be accurately and conveniently estimated, the method can be applied to a cell management system, and the health state of the cell can be accurately estimated in real time.

Description

technical field [0001] The present invention relates to the technical field of lithium batteries, in particular to a battery health state estimation method, device and system. Background technique [0002] With the continuous development of information technology and new energy technology, the demand for batteries in daily life has become increasingly prominent, and the research on battery performance has also attracted much attention. Lithium batteries have been more and more widely used in the field of electric vehicles because of their advantages such as high energy density, high output power, no pollution, wide operating temperature range, and small self-discharge. [0003] The performance of the battery will deteriorate with the deepening of the battery use, so the research on battery life is becoming more and more important. Wherein, the state of health of the battery (state of health, SOH), also referred to as the life state of the battery, is a parameter representin...

Claims

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Application Information

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IPC IPC(8): G01R31/392G01R31/367
CPCG01R31/367G01R31/392
Inventor 高欢杨洸陈鹏魏晓航盖亮
Owner BEIJING HYPERSTRONG TECH
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