Device and method for acquiring internal state distribution of lithium ion battery

A lithium-ion battery, internal state technology, used in measurement devices, secondary battery testing, secondary battery repair/maintenance, etc., can solve problems such as the inability to obtain battery internal consistency

Active Publication Date: 2018-12-07
无锡领声科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can only get the overall performance of the battery, but not the internal consistency of the battery.
At present, there is no device or technology that can obtain the distribution of the internal state of the battery without destroying the battery, and make a comprehensive evaluation and analysis of the internal state of the battery.

Method used

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  • Device and method for acquiring internal state distribution of lithium ion battery
  • Device and method for acquiring internal state distribution of lithium ion battery
  • Device and method for acquiring internal state distribution of lithium ion battery

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0031] The invention provides a device and method for obtaining the internal state distribution of lithium-ion batteries, wherein the device for obtaining the internal state distribution of lithium-ion batteries consists of four parts: an ultrasonic detection unit, a scanning unit, an electrical performance testing unit, and an auxiliary frame unit composition.

[0032] Specifically, the ultras...

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PUM

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Abstract

The invention discloses a device and method for acquiring internal state distribution of a lithium ion battery and belongs to the field of lithium ion battery detection. The device comprises an ultrasonic detecting unit, a scanning unit and a frame auxiliary unit. The ultrasonic detecting unit and the scanning unit are arranged on the frame auxiliary unit. The frame auxiliary unit comprises a thermostatic tank and a support rack. The support rack provides an installation and support place for the ultrasonic detecting unit and the scanning unit. The ultrasonic detecting unit comprises a liquidimmersing ultrasonic probe. The scanning unit realizes relative movement of the ultrasonic detecting unit and a lithium ion battery to be detected. The invention also provides the detection method using the device. The device and method do not damage the battery structure, do not influence the original performance of the battery, realize detection of the internal state distribution of the batteryand acquire the internal state distribution of the lithium ion battery.

Description

technical field [0001] The invention belongs to the field of detection of lithium-ion batteries, and more specifically relates to a device and method for obtaining internal state distribution of lithium-ion batteries. Background technique [0002] Lithium-ion battery is an important secondary battery, which has the advantages of high voltage platform, high storage energy density, relatively long life, high output power and no memory effect, etc., and has become the choice of various advanced portable electronic products. The main supporting power supply also has absolute advantages in the fields of electric vehicles and energy storage power stations. [0003] With the development of demand, the single capacity of lithium-ion batteries is getting bigger and bigger, and the volume is also increasing. With the increase of battery volume, the problem of uneven distribution of active materials and electrolyte in the battery becomes more important. The internal inconsistency of ...

Claims

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Application Information

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IPC IPC(8): H01M10/42G01D21/02
CPCG01D21/02H01M10/4285Y02E60/10
Inventor 邓哲沈越刘磊黄震宇黄云辉
Owner 无锡领声科技有限公司
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