PTFE Dispersing Element
We have successfully developed a PTFE dispersion for particles of nanometric order of magnitude.
Advantages
01 : Particles of nano-order.
Particle size
NMP
MEK
02 : Not easily fibrillated.
Normal
Fibrillation
Development
No Fibrillation
Examples of Solvents.
■ Methyl ethyl ketone (MEK)
■ N-methyl-2-pyrrolidone (NMP)
■ Isopropyl alcohol (IPA)
■ Water
EFFECT
01 : Smooth surface.
Normal
Development
02 : Ability to obtain thin layer films
03 : Easy to mix.
04 : Stability
PTFE binder for batteries
PTFE binder for batteries
Advantages of using PTFE as a binder
1）High chemical stability: PTFE has excellent chemical resistance, which extends battery life and maintains performance over time, even in environments exposed to corrosive electrolytes
２）High thermal stability: PTFE has superior thermal stability compared to PVDF and can maintain stable battery performance under high temperature conditions.
Charge and Discharge Test Results
Binder composition for above test
PTFE binders are superior to PVDF ones with superior charge/discharge behavior regarding C-rate
Sample variety
| No. | sample name | solvent | concentration (wt%) |
viscosity (mPa・s) |
particle size (nm) |
| 1 | MPT-N8B1 | NMP | 40 | 3000 | 390 |
| 2 | MPT-W18 | Water | 60 | 13 | 230 |
| 3 | MPT-W18B1 | Water | 60 | 800 | 320 |
※The specifications are typical values and are not guaranteed values.
Summary of PTFE Binder Features
・High C-rate characteristics
・Superior cycle characteristics
・Process Advantages
