PowerBinder natural-polymer water-based electrode binder for sustainable battery manufacturing
Alginate/gelatin/chitosan-based water-processable binders replacing NMP-solvent PVDF systems for lithium-ion battery cathodes, enabling safer, lower-cost, environmentally friendly electrode manufacturing.
Problem solved
Conventional Li-ion battery cathode manufacturing uses PVDF binder dissolved in NMP (N-methyl-2-pyrrolidone), a toxic, flammable organic solvent requiring expensive solvent recovery systems and posing worker safety and environmental risks. PowerBinder enables water-based cathode slurry processing, eliminating NMP entirely.
Application contexts
- Lithium-ion battery cathode manufacturing
- Next-gen high-capacity Ni-rich cathode processing
- NMP-free battery production lines
- Sustainable battery supply chains
Technical principle
Natural polymers (alginic acid from seaweed, gelatin from animal sources, chitosan) serve as functional binders that maintain electrode structural integrity during cycling. Proprietary pH stabilization technology enables water-based coating of NCA/NCM cathodes. The binders also provide HF scavenging (protecting cathode from acid damage) and improved active material dispersion for better conductive network formation.
Typical use cases
- Water-based NCA cathode slurry for EV battery cells
- NMP-replacement for battery gigafactory sustainability compliance
- Ni-rich cathode processing with improved cycle life
Partnership route
How global engineering teams typically engage this asset.
Helpful to include: target cathode chemistry (NCA, NCM811, etc.) · slurry solid content requirement · mixing and coating process parameters · rate capability and cycle life targets · annual binder volume requirement
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- Source: PowerBinder | 株式会社アイ・エレクトロライト
- Original language: JA
- Summary AI-assisted; translation status: Unreviewed