Lithium-Ion Batteries

Unsere weltweit führenden Analysegeräte bieten leistungsstarke Lösungen zur Verbesserung der Sicherheit, Energie- und Leistungsdichte sowie der Lebensdauer Ihrer modernen Batterien.

Micromeritics bietet weltweit führende Technologie für die Charakterisierung von Partikeln, Pulvern und porösen Materialien

Fläche

Oberfläche durch Gasadsorption einschließlich BET-Oberfläche

Porosität

Porengröße, -volumen und -verteilung durch Gasadsorption und Quecksilberporosimetrie

Dichte

Absolute Dichte von Feststoffen, Pulvern und Schlämmen durch Gaspyknometrie. Automatisierte Hüllendichte von unregelmäßigen Feststoffen und komprimierte Schüttdichte (T.A.P).

Pulverfluss

Scher- und dynamische Messungen der Pulverrheologie und der Partikelinteraktionen

Tätigkeit

Katalysatoraktivität einschließlich Chemisorption, temperaturprogrammierte Reaktionen und Reaktorsysteme im Labormaßstab

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

Instrumente für jede Komponente Ihrer Batterie

Fläche

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

Particle Size​

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

Dichte

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

Fläche

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

Dichte

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

Pulverfluss

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

Porosität

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

Dichte

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

Partikelgröße

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

Fläche

  • 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.
Consistent precursor
particle size and purity
Electrode and separator
incoming attributes

Electrodes

Separator

Yield improvement in slurry
and dry processes
Monitor coating and
drying process
Confirm pore volume and
size distribution of electrodes and
separator electrolyte filling

Li-ion Battery Instrumentation

Instrumentation by Method

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

Fläche

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.

Dichte

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

Porosität

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.

Partikelgröße

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.

Pulverfluss

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
  • Komprimierbarkeit
  • Durchlässigkeit

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.

Einschlägige Ressourcen

Talk to an Expert​

701Vs00000HPMj9IAH
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.