X-ray particle contaminant analyzer
For lithium-ion rechargeable batteries, contamination by foreign matters directly reduce battery performance, safety, and yield rate. Hitachi High-Tech's X-ray particle contaminant analyzer EA8000A is an inspection device that quickly detects and identifies 20μm-class microscopic metal foreign matters that may cause problems in lithium-ion rechargeable batteries. Just selecting inspection conditions and starting measurements automatically execute the process from capturing the X-ray transmission image to detecting metallic foreign matters and identifying its elements. This greatly contributes to failure analysis and inspection at manufacturing sites for lithium-ion rechargeable batteries.
Approximately 5 minutes, the inspection of foreign matter in a range equivalent to A4 size can be completed with a transmission X-ray image.
Metallic foreign matter in fine powder with a small atomic number can be detected by putting an appropriate amount in a bag and spreading the particles thinly.
Metallic foreign matter in fine powder with a small atomic number can be detected by putting an appropriate amount in a bag and spreading the particles thinly.
Measurement of coated cathode and anode plates enables production management.
By periodically measuring the setup tape, the amount of dust generated by the device and its fluctuations, and the composition of the generated dust are comprehensible, and the device can be managed too.
Fe that could not be found by visual inspection of short circuit marks alone is detected. Metallic foreign matter may become mixed during the separator manufacturing process. Even if aging does not cause a problem, repeated charging and discharging may cause a defect.
