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Lithium battery manufacturing

Vacuum solutions for the lithium-ion battery manufacturing process.

lithium_battery

Lithium-ion batteries are at the heart of e-mobility. They can currently store more charge per unit of mass than other battery types – and make reasonable ranges possible.

Key processes during their manufacture are performed under vacuum. Our vacuum solutions are operated at major lithium-ion battery production sites the world over. They are renowned for their reliability in all stages of the lithium-ion battery production.

Lithium-ion battery manufacturing process

Vacuum is a critical requirement in every stage of the manufacturing process of lithium-ion batteries.
From mixing, drying, filling, degassing up to sealing. Without vacuum, many steps wouldn’t even be possible.

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Slurry mixing

The initial mixing process of the slurry with lithium metal oxides, binding agents and solvents takes place under vacuum.
This prevents air bubbles from getting into the process and ensures a pure, homogenous paste.

The result: improved cell capacity.

Matching products
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Slurry drying

Vacuum is used in the drying process to gently remove moisture and other solvents.

Vacuum drying can be performed in batches (single chamber) or in-line (multi-chamber system, typically seven to nine chambers).

Matching products
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Electrolyte filling

The cell is evacuated with the help of vacuum to ensure that there is no remaining moisture or air. Afterwards the electrolyte filling also takes place under vacuum for an even distribution of the electrolyte within the cell.

Matching products
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Impregnating of the lithium-ion battery cell

The contact between the electrode and electrolyte is essential for the function and efficiency of the battery cell.

Vacuum assists this process to ensure that contact is without voids.

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Degassing of the electrolyte

The electrolyte is degassed under vacuum to eliminate air bubbles. Thus, lithium-ions are able to move freely enabling efficient charging and discharging of the battery.

Matching products

Our matching products

Our vacuum solutions are operated at major lithium-ion battery production sites. The world over. And are renowned for their reliability. In all stages of the lithium-ion battery production.

 
Slurry mixing
Slurry drying
Elecrolyte filing
Impregnation
Degassing
 
Vacuum pumps
 
 
 
 
 
R5 RA
✓
✓
✓
✓
✓
COBRA NC/NX
✓
✓
✓
✓
✓
MINK MM/MV
 
 
✓
 
 
Measurement equipment
 
 
 
 
 
VACTEST vacuum gauges
✓
✓
✓
✓
✓

Product details

R5 RA

  • Oil-lubricated rotary vane vacuum pumps
  • Improved cooling system for colder pump body
  • Reduced maintenance costs due to extended interval between oil changes
  • Higher ambient temperature possible
  • Manufactured in an IATF (International Automotive Task Force) 16949:2016 certified plant

Learn more about the R5 RA series

MINK MM/MV

  • Latest dry claw vacuum technology
  • Nearly maintenance-free
  • Low energy consumption

Learn more aobut:

VACTEST

  • Full measurement range (1600 to 5 · 10⁻¹⁰ mbar)
  • State-of-the-art micro-controller technology
  • Insensitive to shock venting

Learn more about the VACTEST product family

Unlock the full potential of your vacuum process

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with expert insights from Vacuum Diagnostics

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The Busch promise

Products

Wide range of different vacuum technologies perfectly suited for all vacuum-assisted stages of lithium-ion battery production

IATF

Manufacturing in IATF-certified plants (International Automotive Task Force 16949: 2016)

Systems

Extensive centralized systems building competence

Service

Large variety of service packages, including our OO digital services

Savings

Up to 55% energy savings with our Busch solutions