Materials Analysis, Testing, and Characterization

Battery Characterization & Testing

NEI offers cost-effective and comprehensive battery characterization & electrochemical testing services, which includes custom electrode sheet fabrication, as well as lithium-ion coin cell and pouch cell fabrication and testing. Our extensive battery research and characterization facility, with multi-channel cell testers, provide you with the tools you need to implement your materials into the next generation of batteries.

The product engineers and scientists at NEI have extensive backgrounds in fundamental materials science and battery testing at the cell level, enabling us to make correlations between materials characteristics and cell performance. This unique ability, coupled with our vast experience in manufacturing custom tailored materials, helps us offer you insight in to how to better optimize your materials in order to attain the best cell performance.

Available Services

A full list of our battery characterization & cell testing services can be found in the table below.

Characterization / Test

Options

Lead Time

Half & Full Cell Testing (coin & pouch cells)• Capacity (under constant current) at room temperature
• Capacity (under constant current) at high or low temperatures
• Capacity retention (under different current densities) at room temperature
• Capacity retention (under different current densities) at high or low temperatures
• Rate capability testing
• Cycle life
• Varies (depending on parameters)
• Varies (depending on parameters)
• Varies (depending on parameters)
• Varies (depending on parameters)
• Varies (depending on parameters)
• Varies (depending on parameters)
Ionic Conductivity• Single point (room temperature)
• Multiple points (-20°C to 100°C)
• 2 - 3 business days
• 4 - 5 business days
Electrochemical Impedance Spectroscopy (EIS)• Temperature Range: -10°C to 150°C• 3 - 5 business days
Particle Size Analysis (Microtrac S3500)
(Range: 10nm - 1000μm)
• Water-based Dispersion
• Alcohol-based (ethanol or isopropanol)
• Special Solvent
• 3 - 5 business days
• 3 - 5 business days
• Varies (contact)
BET Surface Area• Single Point
• Multiple Points
• Pore Size Distribution (need multiple points)
• 3 - 5 business days
• 3 - 5 business days
• 3 - 5 business days
X-ray Diffraction (XRD)• XRD Pattern Acquisition
• Data Analysis (phase identification)
• Data Analysis (crystallite size)
• Crystal Density
• 1 - 2 business days
• 2 - 3 business days
• 1 - 2 business days
• 1 - 2 business days
Thermal Gravimetric Analysis (TGA)• One Heating Condition
• Multiple Heating Conditions (different rate, soak, or temperature)
• 3 - 5 business days
• Varies (contact)
Differential Scanning Calorimetry (DSC)• Glass Transition Temperature and Melting Point of Polymer
• Enthalpy
• 2 - 3 business days
• Varies (contact us)
Infrared Spectroscopy• Transmission Range (Wavenumber: 500 - 4000 cm-1)
• IR spectra functional group analysis
• 1 - 2 business days
• 4 - 5 business days
Scanning Electron Microscopy (SEM)• 3 Micrographs (200x - 50,000x)
• Each Additional Micrograph
• Elemental Mapping (EDS at a single magnification)
• 5 - 10 business days
• Varies (contact)
• Varies (contact)
Optical Microscopy• Bright field (Mag.: 50x, 200x, 500x, & 1000x)
• Additional images using light polarizer
• Interference contrast image
• Dark field images
• 2 - 3 business days
• 2 - 3 business days
• 2 - 3 business days
• 2 - 3 business days
UV-Vis Spectroscopy (Range: 190 - 1100 nm)• Water soluble solids• 1 - 2 business days
Tap Density• N/A• 1 business day
Powder Density (Helium Pycnometer)• N/A• 1 - 2 business days