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NEXT-GENERATION BATTERY SOLUTIONS From Advanced Materials to Next-Generation Battery Solutions. PIOTREK supports technical challenges in LIB, LMB and sodium-ion batteries through advanced materials, components and system technologies. EXPLORE PRODUCTS DEVELOPMENT & TESTING

OUR STRENGTHS Materials. Engineering. Testing. PIOTREK supports technical challenges in LIB, LMB and sodium-ion batteries through advanced materials, components and system technologies. 01 Advanced Materials Ion-conductive polymers, ionic liquids, ion-conductive binders and conductive membranes. 02 Battery Engineering & Prototyping Electrodes, cells and practical-model prototypes including film batteries. 03 Evaluation & Safety Testing Electrochemical evaluation, material and cell testing, safety testing and contract development.

CORE TECHNOLOGY Technology & Solutions Lithium-Metal Batteries Development of practical-model non- flammable lithium-metal batteries. LEARN MORE > Conductive Polymer & Membranes Conductive coating and conductive-sheet technologies. LEARN MORE > Sodium-Ion Battery Materials Na cathode, hard carbon and non-flammable electrolyte materials. LEARN MORE > Safety & Non-Flammability Safety evaluation including nail penetration, overcharge and over-discharge testing. LEARN MORE >

PRODUCTS & MATERIALS Products & Materials Ionic Liquids Ionic-liquid electrolytes and functional materials Positive & Negative Electrodes Electrodes according to application and specification Ion-Conductive Binders Binders for porous electrode fabrication Conductive Separators CP coating separator and related materials Conductive Membranes Current-collector and solid- electrolyte processing High- Purity LiFSI Next- generation LIB electrolyte formulations Sodium- Ion Materials Na cathodes, hard carbon and non- flammable electrolytes Sulfur Battery Materials Materials for emerging sulfur battery systems Li Metal / Cu Laminates Conductive- polymer processed laminate products Contract Electrodes & Cells Specified fabrication and evaluation

CONTRACT DEVELOPMENT &TESTING FromMaterials toCell Testing Contract support covering conductivemembrane processing, electrode andcell fabrication, electrochemicaltesting, practical-model film batteriesand safety testing. 1 Materials 2 Electrodes 3 Cells 4 Performance 5 Safety Testing 6 Practicalization Turn a materials challenge into a practical battery solution. Connect technical consultation to concrete prototyping through specified material production, electrode and cell fabrication, evaluation and safety testing. START A TECHNICAL DISCUSSION >

SOLUTIONS Explore by Challenge Explore lithium-metal batteries > Prototype film batteries > Explore conductive membranes > Explore sodium-ion materials > Specify custom electrodes > Request cell fabrication & testing > Request material/formulationdevelopment > Request safety testing > NEWS News & Topics 2026  {html.escape(x)} 2026  {html.escape(x)} 2026  {html.escape(x)}

CONTACT Let’s discuss your next battery development challenge. customer@piotrek-il.co.jp Kyoto Office / Battery Materials Sales +81-75-257-0888 SEND AN INQUIRY EMAIL >

PIOTREK PIOTREK Co., Ltd. PRODUCTS Ionic liquids / Electrodes / Conductive membranes TECHNOLOGY Lithium-metal / Sodium-ion batteries CONTACT customer@piotrek-il.co.jp c PIOTREK Co., Ltd. All Rights Reserved.