EMEA
NA
SA
APAC

L-Series

The C-NERGY™ L -Series is a grade of high purity, speciality, primary synthetic graphites designed and optimized for lithium-ion batteries.

C-NERGY L-series - high-grade specialty graphite for lithium-ion batteries

The C-NERGY L-series graphites is a range of high purity, speciality, primary synthetic graphites designed and optimized for both positive and negative electrodes of lithium-ion batteries. These grades are characterised by their very high purity, electrical conductivity, reversible capacity, density, low spring back and very efficient electrolyte wettability. 
 
The comparative high degree of conductivity comes from their very high crystallinity. This allows manufacturers to achieve the same level of conductivity with a lower loading, enabling a higher degree of flexibility when it comes to anode design and cathode material mix. The structure also gives the battery a high charge acceptance and cycling stability, making it both easier to charge the battery itself and slower to decrease the charge loss with each consecutive recharge.
 
Due to its high electrode density and low spring back, the electrode will not rebound or expand when compressed. This allows manufacturers to design more compact batteries and optimise space. This compressibility enables improved mechanical stability, leading to improved battery safety and longevity.
 
The efficient wettability of C-NERGY L-series graphites makes them easily dispersible within the electrode slurry, resulting in improved battery performance because of efficient anode wetting by the electrode.

Key benefits

  • Enables the utilization of more economical active materials in the electrodes
  • Enables reduced electrochemical inactive components dosage in the negative electrode
  • Reduction of global additives cost 
  • No additional pre-dispersing unit is required
  • No need for a dispersing agent
  • Faster electrolyte absorption
  • Higher production output
  • Improved safety and lower rejection rate

 

L-Series for the positive electrode of lithium-ion batteries

 

SFG6L

KS6L

Ash (%)

0.01

0.01

Fe (ppm)

10

10

Cl⁻ (ppm)

5

5

SO²⁻ ₄ (ppm) (2)

25

25

Amount of magnetic particles/gram of product*

<1

<1

Time to absorb DMC electrolyte solvent (msec) (1)

200

200

In-plane electrical conductivity of LFP electrodes at 2wt% of graphite (mS/cm) (2)

32

31

In-plane electrical conductivity of NMC electrodes at 2wt% of graphite (mS/cm) (2)

52

51

Density of LFP electrodes at 2wt% of graphite (g/cm²) (3)

2.2

2.2

Density of NMC electrodes at 2wt% of graphite (g/cm²) (3)

3.0

3.0

Spring-back (%)

10

12

More data available upon request. 1) Defined as time it takes to reach a contact angle of 0°. 2) Measured in presence of 1 wt% of C-NERGY™ SUPER C65, not densified. 3) Measured in presence of 1wt% of C_NERGY™ SUPER C65, densified uniaxially at 32 kN/cm² *Based on SEM-EDX method

L-Series for the negative electrode of lithium-ion batteries

 

Ash (%)

Fe (ppm)

CI⁻ (ppm)

SO²⁻ ₄ (ppm)

Amount of magnetic particles/gram of product*

Time to absorb DMC electrolyte solvent (msec)

Time to absorb water (msec)

Electrode density (g/cm3)

Spring-Back (%)

Reversible capacity (Ah/kg)

SFG15L

0.01

10

5

25

<1

100

300

>1.75

10

365

KS15L

0.01

10

5

25

<1

200

400

>1.75

13

335

More data available upon request. 1) Defined as time it takes to reach a contact angle of 0°. *Based on SEM-EDX method

Contact us
Need help to find the right solution with our experts?