Quality Assurance for Battery Safety and Performance

Challenges

• Capacity, charging behavior, and battery lifetime are all defined by the materials used for the cathode, anode, and separator
• Cell performance is highly influenced by the microscopic structure of these materials, plus the particle chemical composition and impurities

Your benefits with ZEISS

• High-resolution, high-contrast battery material analysis with ZEISS scanning electron microscopes (SEMs)
• Efficient correlative analysis via patented correlative microscopy solution incorporating light microscopes and SEMs

Challenges

• Safe and efficient sample preparation and analytical solutions are needed to ensure cell structure quality and enable high performance
• Original status of cell structure must be analyzed without disassembling the cell

Your benefits with ZEISS

• Safe sample preparation and efficient large-area cross-sectioning
• High-resolution, high-contrast analysis of electron-beam-sensitive battery materials in low kV range with ZEISS GeminiSEM
• High-resolution non-destructive 3D cell structure analysis with ZEISS Xradia X-ray microscope (XRM)
  

Challenges

• Incoming goods check ensures material uniformity and consistency, preventing defects that hugely impact performance and efficiency
• Raw material microstructure visualization and check, cathode particle chemical element ratio, and anode particle purity all crucial for avoiding battery failure

Your benefits with ZEISS

• Meet the highest demands in sub-nanometer imaging, analytics, and sample flexibility with ZEISS GeminiSEM
• Complete sample preparation workflow allows for fast, clear, and seamless imaging of the material microstructure
• Supports high-resolution, high-contrast imaging of non-conductive samples
  

Challenges

• Inspection of foreign particles larger than 5 μm needed due to high contamination risk during transportation and manufacturing
• As electrode cutting may generate burrs, it is crucial to balance quality and cost by finding ideal time for blade replacement

Your benefits with ZEISS

• ZEISS Technical Cleanliness Analysis software distinguishes metal, fiber, and non-metal particles to estimate contamination risk
• ZEISS scanning electron microscopes automatically state chemical composition of each particle to pinpoint root cause of contamination
• Automated burr detection in factory environment and constant feedback to production line
  

Challenges

• To avoid safety hazards and waste, it is essential to check the alignment and position of cell electrodes and identify internal defects
• Quick, high-resolution inspection cycles are required in order to handle high cell production speeds

Your benefits with ZEISS

• High-resolution imaging with ZEISS 2D and 3D X-ray solutions to handle overhang, damaged electrodes, and weld quality
• Fast and efficient full 3D digitization of complex parts in the finest detail via systems such as ZEISS METROTOM
• 100% inline automated evaluation with ZEISS BOSELLO defect detection
  

Challenges

• Size and density of module demands the use of high-performance systems
• Final quality check must detect typical defects including metal contamination, overhang, and electrode misalignment

Your benefits with ZEISS

• High-penetration non-destructive inspection via the compact and robust ZEISS VoluMax 9 titan
• This CT solution handles large, heavy, and dense modules with its high power range and penetration strength