Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Apparatus and test method for aging test of multiple cells in a squeezed state

An aging test and multi-battery technology, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems of not being able to provide enough accurate data and not being able to collect the deformation of the battery separately, and achieve simple structure, low cost, and comprehensive The effect of temperature monitoring

Active Publication Date: 2022-07-05
NANJING TECH UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a device and method for performing aging tests on multiple batteries in a squeezed state, so as to solve the problem that the mechanical load used in the battery performance test in the prior art can only collect a single deformation, and for multiple batteries, then The deformation of each battery cannot be collected separately, resulting in the technical problem of not being able to provide enough accurate data during the test

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
  • Apparatus and test method for aging test of multiple cells in a squeezed state
  • Apparatus and test method for aging test of multiple cells in a squeezed state
  • Apparatus and test method for aging test of multiple cells in a squeezed state

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] like Figure 1-10 As shown, an aging test device for multiple batteries in a squeezed state includes a base bracket 19 , six splints 2 , two motors 9 , a positioning plate 1 , a pressure sensor 10 and a laser distance meter 5 .

[0065] The base bracket 19 is fixedly provided with a bottom plate 6, four polished rods 7 are vertically arranged on the bottom plate, four limit holes 8 and two positioning holes 20 are opened on the splint, and the limit holes and the positioning holes are all light holes. ; All the splints are movably sleeved on the polished rod through the limit holes, and are located above the bottom plate, each limit hole corresponds to a polished rod; The seven plywood are stacked, and recorded from bottom to top: the first layer of plywood, the second layer of plywood The plywood, ..., the seventh plywood, the battery 3 is placed between the two adjacent plywoods; the positioning plate 1 is located on the seventh plywood, and the positioning plate 1 is...

Embodiment 2

[0091] Based on the above-mentioned test method for the device for aging testing of multiple batteries in a squeezed state, the following steps are included:

[0092] Step 1. Put the 6 batteries to be tested into the above-mentioned device, and place a battery between two adjacent plywoods, which are recorded as the first battery, the second battery, ..., the sixth battery from bottom to top. ;

[0093]Step 2. Start two motors at the same time. The speed and direction of rotation of the two motors are the same. The motor drives the lead screw to rotate, thereby driving the positioning plate to move down, and squeeze the seventh layer of plywood, so that the seven plywood are all along the polished rod after being stressed. Move down and squeeze the battery, that is, apply a mechanical load to the battery; at the same time, the first layer of splint transmits the pressure to the pressure sensor, and the pressure sensor collects the pressure signal in real time to the control sy...

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 invention discloses an aging test device and a test method for multiple batteries in a squeezed state. The device includes a base bracket, N splints, two motors, a positioning plate and a laser range finder. A base plate is fixedly arranged on the base bracket, M polished rods are vertically arranged on the base plate, and all the splints are sleeved on the polished rods through the limit holes; N-layer plywood; M and N are positive integers greater than or equal to 3; the motor output shaft is fixedly connected with a vertically arranged screw rod, and the screw rod passes through the corresponding positioning holes of all plywood plates and is threadedly connected to the positioning plate; the plywood is provided with Through holes, the laser range finder is arranged on the base plate, and (N-1) reflective lenses are arranged at equal intervals on the base plate. The multi-layer structure testing device designed by the invention can load the same mechanical load on the lithium ion battery in batches, and can cooperate with the battery tester to realize the battery cycle aging and other multiple abuse tests under the mechanical load in batches.

Description

technical field [0001] The invention belongs to the technical field of lithium ion batteries, and in particular relates to a device and a test method for performing an aging test on multiple batteries in a squeezed state. Background technique [0002] Due to its superior energy storage density and working performance, lithium-ion batteries are widely used in new energy vehicles and energy storage stations. , safety, and changes in physical and chemical properties have always been the focus of research in the industry. [0003] For the cyclic aging test of lithium-ion batteries at different temperatures and different charge-discharge rates, the test can be completed using a battery charge-discharge instrument and an incubator. Since the battery pack of a new energy vehicle is generally used as a chassis at the same time, the battery pack may be subjected to various mechanical shocks during the driving of the car, causing the battery to be squeezed; except for the deformation...

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 Patents(China)
IPC IPC(8): G01R31/392
CPCG01R31/392Y02E60/10G01R31/3644H01M10/4285
Inventor 王志荣白金龙
Owner NANJING TECH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com