Lithium-Ion Batteries

Our world leading analytical equipment offers high performing solutions to improve your advanced battery’s safety, energy & power density, and cycle life

Micromeritics provides world-leading technology for the characterization of particles, powders, and porous materials

Surface Area

Surface area by gas adsorption including BET surface area

Porosity

Pore size, volume, and distribution by gas adsorption and mercury porosimetry

Density

Absolute density of solids, powders, and slurries by gas pycnometry. Automated envelope density of irregular solids and compressed bulk density (T.A.P).

Powder Flow

Shear and dynamic measurements of powder rheology and particle interactions

Activity

Catalyst activity including chemisorption, temperature-programmed reactions, and lab-scale reactor systems

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.

Instrumentation by component

Instruments for every component of your battery

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

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

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

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

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

Instrumentation by Method

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

Surface Area

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

Results Example

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.

Density

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

Results Example

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

Porosity

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

Results Example

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.

Particle Size

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

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.

Powder Flow

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

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.

Relevant Resources

Application Notes / Brochures / Webinars

Analytical Equipment For Lithium-ion Batteries

Analytical Methods to Ensure Battery Raw Material and Electrode Performance

Assessing Batch-to-Batch Variability of Bulk Chemicals Using the FT4 Powder Rheometer®

Characterization of Carbons Using a Micromeritics 3Flex

Characterizing Advanced Battery Anodes with Gas Adsorption BET Surface Area and DFT Surface Energy

Characterizing Li-Ion Battery Separators – Pore Structure Determination

Exploiting Multiple Gas Adsorption Isotherms for Consistent Pore Size Analysis

Lithium-ion Battery Separator: Pore Structure Determination Using Mercury Intrusion Porosimetry

Optimizing Li-Ion Battery Electrode Manufacturing – Yield Case Study

Optimizing Yield for Li-Ion Battery Electrode Manufacturing for Both Wet and Dry Processes

Particle Size Determination of Porous Powders Using the SediGraph

Physical Characterization Methods for Cathode Powders

Sample Preparation and the Impact on Results

Techniques Applicable to the Study of Porous Materials

Understanding Density Measurement Techniques

Understanding Surface Area Measurements Webinar

Unified Approach to Understanding Porous Materials

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Customers choose Micromeritics for our diverse world-leading high-performance systems, expert application staff, and factory-trained engineers spanning many industries around the globe. We are here to provide sustainable solutions for Net-Zero Technologies and accelerate both R&D and commercialization with quality data, customer service, our particle testing lab, and virtual or onsite product demonstrations.

Products

CE Declarations of Conformity

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Electrodes
TriStar	AccuPyc	GeoPyc
Separator
AutoPore	AccuPore

Lithium-Ion Batteries

Micromeritics provides world-leading technology for the characterization of particles, powders, and porous materials

Surface Area

Porosity

Density

Powder Flow

Activity

Li-ion Battery Components

Instrumentation by component

Instruments for every component of your battery

Surface Area

Particle Size​

Density

Surface Area

Density

Powder Flow

Porosity

Density

Particle Size

Surface Area

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

Manufacturing process

Electrodes

Separator

Li-ion Battery Instrumentation

Instrumentation by Method

Surface Area

Results Example

Value for Battery Industry

Density

Results Example

Value for Battery Industry

Porosity

Results Example

Value for Battery Industry

Particle Size

Results Example

Value for Battery Industry

Powder Flow

Results Example

Value for Battery Industry

Relevant Resources

Talk to an Expert​

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Particle Size

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

Talk to an Expert