Why Introduce SWIR Sensors into Electric Vehicle Battery Production Monitoring and Quality Control Testing?

To ensure that electric vehicle batteries meet the strict safety, performance, or quality requirements, it is crucial to conduct quality control testing on them. Currently, leak detection methods are slow and inaccurate, and even tiny leaks can shorten the battery’s life, impact performance, and increase warranty costs. Even worse, leaking can shortcircuit electrical systems, set fires, or cause damage to battery components.

A battery can be non-destructive tested before it leaves the factory. Automated radiographic inspection (X-ray inspection) can be used to examine hidden inner structures and identify defects before the cells leave the factory. This prevents defective cells becoming part of battery modules. The cell structure is also important for quality control. Rolled cells can be examined in 2D. Stacked cells, however, require 3D computer tomography. This is more difficult than interpreting a transmissive radiograph image.

Engineers assess a battery’s condition during manufacturing by measuring the state of charge or discharge. Engineers also assess the condition of the battery’s battery’s busbar. This is a conductor that is long and isolated from the ground. It is responsible for discharging current throughout the battery pack. Because the weld resistance of batteries is an important indicator, testing the busbar is an essential part of the process. Any resistance that is too low can lead to excessive heat and early failures. By measuring the resistance before a battery is operational, engineers can remove any defective modules in the shortest time possible.

In addition to performance testing, SoC information is critical to estimate a battery pack’s usable life. It is possible to reduce the usable life of a lithium-ion battery pack by charging it too often or discharging it too frequently. This information is also used by the battery management system (BMS) to maintain the cells within their safe operating limits. BMS must also include a precise charge estimator to calculate SoC.

SoC can’t be measured directly, unlike voltage and temperature. It must be calculated using proprietary parameters.

SWIR can be used to adapt the Lithium-Ion Battery Testing Process

In terms of testing equipment suitable for adaptation to existing production systems, high resolution, wide field-of-view, and extended SWIR cameras can be utilized to overcome important lithium-ion battery inspection challenges, therefore enabling lithium and lithium-ion battery producers to meet increasingly demanding performance and quality specifications.

SWIR Vision’s Acuros SWIR cameras, for example, can provide imaging through the Li:Ion separator using SWIR wavelengths. These cameras – or sensors – provide the necessary alignment accuracy of inter-layer electrodes leading directly to more available energy storage capacity and longer battery lifetimes.

These sensors are able to see through objects and provide high-resolution images at a fast-fire rate. This makes them ideal for quality control throughout the manufacturing process. We expect SWIR cameras to be adopted quickly for battery testing.

Folded doors, bi-folding doors or accordions like Wood Accordion Doors UrbanModernHardware were first developed for use in homes but they’ve since become useful in offices too. These doors can be opened at an angle of up to 90 degrees and they can fold back to conserve space when not in use too! Foldable doors are great because they’re compact when folded up but expand outwards once opened so they can be used as extra closet space.

Accordion doors have been most commonly used as doors to separate rooms and hallways. Homeowners and space planners are now reconsidering the purpose of accordion folding doors.

Traditionally used as a means to divide rooms, several questions have arisen: Does this type of door offer soundproofing? Do they invite bugs into our homes?

The Origin of Accordion Doors

The concept of accordion doors goes back thousands of years, having its roots in ancient Rome, especially in Pompeii, where folding doors were preferred over swinging doors to separate rooms.

While traditional wooden door frames may be used for making an accordion style door, metal ones offer greater strength and longevity.

In fact, patents for folding doors go way back—in 1918, a patent was granted in the United States for a bifolding door. Tomkinson.

Accordion Doors Design Trends

Their use has skyrocketed since they were first introduced. They’re now used for everything from homes to offices, even airplanes!

As technologies develop and new materials become available, so too has the accordion door come back into vogue.

Have They Gone Out of Style?

They’ve been used for decades now and they’re still popular today because they provide an easy way to open up large spaces without having to go through any hassle.

Home builders have recently incorporated accordion doors into their designs for separating living spaces from bedrooms.

Folded doors can be stored away when they’re not needed, which saves valuable storage space.

-Easy to set up: they’re great for beginners!

-With an accordion door system, you don’t need to worry about people peeking through windows when you open them.

They’re still popular and offer an easy solution for dividing spaces or adding privacy if needed.

Accordion doors have traditionally been made from either solid hardwood or wooden grain veneer. However, these days, they’ve evolved into something even better — sleek metal ones!

Materials such as glass, stainless steel, and vinyl laminates of any color, texture — or even printed graphic designs — can now be added to accordion doors for a sophisticated feel.

Accordion Doors Can Still Be Used For Closets

While many people may not think of accordion doors when it comes to their closets or storage areas, these unique doors are still an excellent choice.

Accordion style closet doors like the Woodfold 140 are great additions to any closet because they add extra storage space without taking up too much room.

Accordion doors are not only useful, but they still provide that sense of style and sophistication homeowners crave today.

Accordion doors, especially UrbanModernHardware Wood Accordion Doors , offer several advantages over conventional folding closet doors. They’re easy to install, they don’t require any tools, and they look great too!

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Innerspring Bed mattress

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Memory Foam Cushions

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Latex Mattresses

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Crossbreed Cushions

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Pillow-top Bed mattress

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Airbeds

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