Battery Materials for Cell Manufacturing
Kynar® PVDF's Key Applications in a Lithium Ion Battery
- Electrodes (anode & cathode)
- Active material (LFP, LCO, NMC, Graphite, others)
- Electrode binder (Kynar® PVDF - HSV series)
- Separator (polyolefins, others)
- Separator coating (Kynar Flex® PVDF - LBG series)
Global network of centers of excellence to drive battery innovation
Battery Cell Separator Coating based on Kynar® PVDF
The separator plays a major role in preventing short circuits while enabling ion movement between the electrodes. Our expertise with Kynar® PVDF focuses on optimizing separator performance across the entire cell lifecycle. By fine‑tuning dry adhesion between the separator and electrodes, PVDF solutions support precise alignment during manufacturing and offer superior electrolyte wettability compared with polyolefin separators. PVDF also contributes to improved safety thanks to its enhanced thermal dimensional stability, particularly when paired with ceramic coatings.
Battery cell cathode binder
Arkema’s Kynar® PVDF material which became an industry reference for its high electromechanical resistance, high purity, mechanical stability and advantages in processing. The electrode manufacturing process begins with the mixing of active materials, binders, and conductive agents to create a homogeneous slurry, a critical step in obtaining the slurry with a controlled viscosity. The centre of excellence operates a state-of-the-art dry room with coating and drying equipment to further advance our cathode expertise.
State-of-the-Art R&D Facilities: Battery Cell Pouch Assembly & Testing
Arkema's global network of advanced R&D laboratories drives innovation through strategic partnerships, responding to the rapidly evolving demands of the battery industry. Our cutting-edge facilities feature comprehensive capabilities for precision assembly and rigorous testing of both coin and pouch cell configurations, enabling the development of next-generation energy storage solutions.
Electrode binders: Kynar® HSV series
- Easy processing
- High adhesion/lower loading
- Lower swelling in electrolyte
- Lower electrode resistivity
- High voltage stability
Separator coatings: Kynar Flex® LBG series
- High electrode adhesion (wet & dry)
- High voltage stability
- High dimensional stability
- Controlled crystallinity
- Nanoceramic compatibility for solvent & waterborne technologies
PVDF by Emulsion: the go-to Enabler for Solvent-free Technology in Battery Cell Manufacturing
Download the white paper
In this white paper, we delve into the dynamic world of a battery electrode and separator coating manufacturing, examining the case of a new battery cell manufacturing process versus PVDF emulsion technology. Polyvinylidene Fluoride (PVDF), a well-established binder in the Lithium or Sodium-ion battery cell manufacturing industry, satisfies simultaneously the most pivotal material characteristics as a cathode binder or separator coating.
Arkema's R&D Hub For Battery Cell Expertise
Expanded in 2021, Arkema’s Battery Center, in Lyon, plays a key role in this transition and strives to develop high-performing materials for current lithium cell technologies as well as next-generation batteries, such as semi-solid, solid and sodium. Closely connected with other research centers, in Asia and the USA, the center is equipped with cutting-edge technologies allowing battery manufacturers to leverage reliable and real-life data to speed up the development of the next generation of batteries.
Discover more about Arkema's Battery Center