Tuball™ Batt

TUBALL™ BATT is a dispersion of single wall carbon nanotubes in NMP or water.

It is a ready-to-use dispersion designed to easily incorporate TUBALL™ into electrode formulations during the battery manufacturing process. TUBALL™ BATT provides a complete or partial substitute for carbon black in battery electrodes and can replace several percent of carbon black with 0.05-0.1% of TUBALL™.

TUBALL™ forms conductive 3D networks between active material particles at very low concentrations. It reinforces the electrode structure and improves its mechanical stability during cycling. It also improves adhesion by establishing strong ties between the particles, reducing the amount of binder required.

How It Works

Tuball™ Batt Nmp Pvdf

Recommended for use in Li-ion battery cathodes as a replacement for carbon black, MWCNTs, VGCF or other conductive additives

Key Features

  • Ultra-low loadings: less than 0.1% of TUBALL™ SWCNT required for high conductivity of the cathode
  • Increased energy density due to higher % of active material
  • Increased energy density through higher achievable press density
  • Improved processability: faster slurry preparation
  • Superior performance at cost-competitive price

Recommended Recipes

Starting Formulation For Lco

Component Concentration Mass
LCO 99.14% 991.4 g
TUBALL™ 0.06% 300 g of 0.2% TUBALL™ BATT NMP PVDF
(contains 0.6 g of SWCNT and 6 g of PVDF)
PVDF 0.8% 2 g (other 6 g of PVDF are in the dispersion)

Starting formulation for LFP

Component Concentration Mass
LFP 98.4% 984 g
TUBALL™ 0.1% 500 g of 0.2% TUBALL™ BATT NMP PVDF
(contains 1 g of SWCNT and 10 g of PVDF)
PVDF 1.5% 5 g (other 6 to 10 g of PVDF are in the dispersion)

Starting formulation for NCM

Component Concentration Mass
NCM 98.0% 980 g
TUBALL™ 0.1% 500 g of 0.2% TUBALL™ BATT NMP PVDF (contains 1 g of SWCNT and 10 g of PVDF)
Super P 0.4% 4 g
PVDF 1.5% 5 g (other 10 g of PVDF are in the dispersion)

Mixing Recommendations

  • Take TUBALL™ BATT
  • Add PVDF and mix for 1 hour or until PVDF is dissolved
  • Slowly add active materials and other additives while mixing
  • Mix until slurry is homogeneous
  • Add NMP during the mixing if necessary to reduce viscosity

Indemendent Performance Validation

Trial in 10 Ah cells with 0.2% TUBALL™ BATT NMP PVDF

Benefits demonstrated

  • Significantly higher % active
  • Increased press density
  • Better rate performance
  • Shorter mixing time

Tuball™ Batt H2O

Recommended for use in graphite anodes and Si anodes of Li–ion batteries

Key Features

  • Ultra-low loadings – less than 0.1% of TUBALL™ SWCNT is required in anode formulation
  • Faster charge rates
  • Increased energy density through higher % of active material
  • Significantly improved cycle life with Si anode
  • Superior performance at a cost-competitive price

Anodes With Tuball™

  • Si and Si—graphite composites are next-generation materials for Li-ion anodes
  • Si particles expand and contract during charge and discharge
  • The stress caused by particle volume change leads to rapid failure
  • TUBALL™ mechanically reinforces the anode and ensures good contact between the particles
  • Cycle life improvement is the main benefit of using TUBALL™ in Si anodes

Mixing Recommendations

  • Take TUBALL™ BATT
  • Add water calculated based on target % solids in the slurry; mix for 10 min
  • Add CMC; mix until CMC is dissolved
  • Add other conductive additives such as carbon black
  • Mix until the slurry is homogeneous
  • Gradually add active material while mixing
  • Mix until the slurry is homogenous
  • Add SBR; finish the mixing

Indemendent Performance Validation

Validation in Si anodes in high-energy 18650 cells

The recommendations above are for a water-based anode with CMC and SBR binders.

Room temperature cycling

Test conditions

  • Temperature: 22.5±2.5C
  • Charge: CC/CV 0.5C 4.2 V cut−off
  • Current: 0.01C
  • Discharge: CC 0.5C
  • End-of-discharge voltage: 2.5 V

Tuball™ Batt Applications

TUBALL™ BATT dispersions have been shown to be used successfully in a wide range of applications:

  • Li-ion cells
  • Lithium primary cells
  • Alkaline cells
  • Lead−acid batteries
  • Supercapacitors
  • Fuel cells
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