Page 22 - Guide to Lithium-ion Battery Solutions

Internal Structure Evaluation

Non-destructive observation of internal structures and deterioration evaluation after charging and discharging Purpose Samples

Internal observation of cells that have been Small-capacity Lithium-ion Battery that has
charged and discharged 100 to 1500 times been charged / discharged
Microfocus X-Ray CT System

inspeXio SMX -225CT series
™
™
• Non-destructive internal observation is possible Data
• Data can be confirmed immediately after shooting by high-speed
calculation
• Confirmation of detailed parts with a high-resolution detector

The X-ray CT device can observe the internal structure non-destructively. Therefore, it is used for analysis of defective
products, comparison of non-defective products / defective products, comparison before and after charging / discharging,
and observation of internal structures in cycle tests. In many cases, it is used for finished battery products. It is also used
for observing the three-dimensional structure of minute parts such as electrodes.

Purpose Samples

Non-destructive observation of the current Large Lithium-ion Battery for a vehicle.
collector and of the lower part of the battery W114mm×D48mm×H184mm

Data

Cross-sectional image of a Lithium-ion Battery in a charge-discharge cycle test (100 ~ 1500 times)

Result

This data shows results from repeatedly charging and discharging the Lithium-ion Battery and scanning at 100 times, 500
times, 1000 times, and 1500 times. Because X-ray CT can observe the inside non-destructively, it is not necessary to prepare
The X-ray CT image of a large Lithium-ion Battery for a vehicle a lot of samples for a cycle test. Therefore, it is possible to track the state changes over time for the same sample.

Result

The green frame is the positive electrode current collector, the red frame is the negative electrode current collector, and
the blue frame is the X-ray CT image of the lower part of the battery. You can see in detail how the negative electrode is
bent.

Click here for product page Click here for product page

22 23
index index