What Micromeritics Does Best

We are your one stop shop for all Li-ion battery analytical equipment needs to improve your lithium-ion batterys’ safety, energy & power density, and cycle life.

Li-ion Battery Components

Lithium-ion (Li-ion) batteries are an advanced battery technology which have four major components: anode, cathode, separator, and electrolyte.

At Micromeritics we have instrumentation for all stages of battery production starting from the raw material precursors to the final battery cell.

In the future the liquid electrolyte may be replaced by a solid electrolyte for improved safety and performance.

Instruments for every component of your battery

Select category below to see relevant method & instruments

Precursor Materials

Surface Area

  • Increase capacity
  • Facilitates fast charging
  • Improve charge/discharge performance

Particle Size

  • Maximize capacity
  • Critical for high energy density
  • Influence coulomb efficiency

Density

  • Optimize electrode packing density
  • Maximize mass/volume density
  • Minimize irreversible capacity

Anode/Cathode

Surface Area

  • Increase capacity
  • Facilitates fast charging
  • Improve charge/discharge performance
  • Tailor binder needed for adhesion

Density

  • Optimize electrode packing density
  • Maximize mass/volume density
  • Minimize irreversible capacity

Powder Flow

  • Control slurry agglomerates and dispersibility
  • Optimize electrode packing density
  • Improve battery efficiency
  • Longer battery life

The FT4 Powder Rheometer® – a universal powder tester for measuring powder flow properties and powder behavior.

FT4

Separator

Porosity

  • Critical to safety and reliability
  • Improve energy/power density
  • Optimize capacity
  • Longer cycle life

Density

  • Critical to safety and reliability
  • Consistent ceramic material
  • Longer battery life

Solid Electrolyte

Particle Size

 

  • Maximize capacity
  • Critical for high energy density
  • Influence coulomb efficiency

Surface Area

  • Increase capacity
  • Facilitates fast charging
  • Improve charge/discharge performance

Instruments for every step in the Li-ion battery manufacturing process.

Our instruments are there every step of the way from precursor consistency to the electrode slurry preparation, coating, drying, and calendaring, and final cell electrolyte filling.

Li-ion Battery Instrumentation

Micromeritics best-in-class material characterization instrumentation in our core areas of expertise.

Surface Area Measurement

Results Example

Results Example

Adsorption Isotherm and BET Surface Area Plot of Next Generation Anode

 

Value for Battery Industry

  • Understanding the porosity of the electrode materials is important to guarantee the right ion accessibility and charging speed.
  • BET surface area, pore volume and pore size distribution help to optimize your battery components.

Instrument Details

Instrument Details

Our extensive range of gas adsorption analyzers offer convenient solutions to realize your R&D, quality control, and manufacturing needs.

  • Pore size can be measured from 0.3nm to 300nm using a variety of different models
  • Water vapor adsorption studies allow the investigation of a material’s sensitivity towards water

 

Density Measurement

AccuPyc

AccuPyc II Gas Displacement Pycnometry System


GeoPyc

GeoPyc Envelope & Density Analyzer


Results Example

Results Example

Density of NCM Ternary Cathode Material

 

Data Summary

  • Average: 4.5769 g/cm3
  • Standard Deviation: 0.0014 g/cm3

 

Value for Battery Industry

  • High T.A.P. density of precursors is expected to obtain a high volumetric energy density.
  • The true density is a good indicator of purity and composition of the cathode which can be used to improve the overall performance of the battery.
  • Monitoring true density of the electrode material ensures stability of the slurry coating and drying process

Instrument Details

Instrument Details

The AccuPyc uses Gas Pycnometry and the GeoPyc uses a unique displacement technique to determine the:

  • True, absolute, and skeletal density
  • Apparent volume and density
  • Envelope volume and density
  • Bulk volume and density

Combining data from these two techniques enables the determination of the percent porosity and total pore volume

 

Porosity

Results Example

Results Example

Separator Pore Size Distribution from the AutoPore

 

Intrusion Data Summary

  • Total intrusion volume: 0.813 mL/g
  • Median pore diameter: 155 nm
  • Porosity: 53.1%

 

Value for Battery Industry

  • Understanding the porosity of the electrode materials is important to guarantee the right ion accessibility and charging speed.
  • BET surface area, pore volume and pore size distribution help to optimize your battery components.

Instrument Details

Instrument Details

Mercury porosimetry is a uniquely valuable technique which delivers speed, accuracy and the comprehensive characterization of many sample properties:

  • pore size, 3nm to 500 µm
  • total pore volume
  • total pore surface area
  • percent porosity
  • sample densities (bulk and skeletal)
  • particle size

 

Our extensive range of gas adsorption analyzers offer convenient solutions to realize your R&D, quality control, and manufacturing needs.

  • Pore size can be measured from 0.3nm to 300nm using a variety of different models
  • Water vapor adsorption studies allow the investigation of a material’s sensitivity towards water

 

Particle Size

SediGraph

SediGraph III Plus 5125


Results Example

Results Example

 

Value for Battery Industry

  • The SediGraph is the only instrument that can precisely report weight percent of particles <0.1μm.
  • Industry leader for rough electrode and other precursor materials.
  • Optimize particle size ratio of cathode and solid electrolyte to maximize the energy density.

 

Instrument Details

Instrument Details

The SediGraph remains the global standard for particle size analysis by sedimentation after five decades, whether in a rugged production environment or a controlled laboratory setting.

  • Sedimentation uses well understood physical laws and easy to measure properties that do not require trial and error modeling
  • Provides complete sample mass accountability and quantifies the fine content outside the measurement range
  • Uses higher material concentration than many other techniques ensuring a representative sample

 

Powder Flow

FT4

The FT4 Powder Rheometer® – a universal powder tester for measuring powder flow properties and powder behavior.


Results Example

Results Example

 

Value for Battery Industry

  • Understanding a powder’s Specific Energy, an indicator of inter-particular friction and mechanical interlocking, can help reduce agglomerates in the electrode slurry.
  • Determining and optimizing Permeability, a measure of a powder’s ability to release air, can improve slurry dispersion and cavity filling in wet or dry systems.

Instrument Details

Instrument Details

The FT4 provides comprehensive flow property characterization of a powder and is now established as a universal powder tester. Optimize manufacturing processes by quantifying a powder’s.

  • Resistance to flow in motion
  • Shear strength
  • Shear against the wall
  • Bulk density
  • Compressibility
  • Permeability

How Can We Help?

Advancing the future of Li-ion batteries one measurement at a time.

Despite their overall advantages, Li-ion batteries have their drawbacks, and many areas are being investigated that will be commercialized in the coming decade. We are here to provide sustainable solutions to speed your battery development with quality data, customer service, our particle testing lab, and virtual or onsite product demonstrations.