Flexible Battery – FlexEl

Based on an aqueous electrolyte chemistry, FlexEl’s flat battery is designed to be thin and flexible. The electrodes are designed for performance and capacity retention. The choice of chemicals and components makes the product a cheaper and safer alternative to Li-Ion in disposable devices. The technology is also bio-compatible, and uses proven chemicals, parts, and manufacturing techniques so that production scale-up is readily managed.


The technology is available to select customers. Custom dimensions can be developed on demand. Inquire regarding product technical data sheets and samples availability.


  • Operating voltage: 1.45-1.05V
  • Capacity: 10 – 15 mAh/cm2 (60-90 mAh/inch2)
  • Rate: 2C maximum
  • Thickness: 0.5 – 1.0 mm (20-40 mils)
  • Other dimensions on demand

FlexEl, building on its flexible primary flat battery product technology, is designing a rechargeable battery using a proven cathode electrode, an innovative anode and an aqueous electrolyte. The choice of materials and components makes the product less costly than the traditional NiMH batteries. The electrolyte choice makes the product a safer alternative to Lithium based products.


The technology availability is pending. Inquire regarding product development status and technical data sheet.


  • Operating voltage: 1.6 V
  • Energy density: 250 – 350 Wh/l
  • Specific energy: 100 – 150 Wh/kg
  • Capacity: 80 – 100 Ah/l
  • Power output: 150 – 180 mW/cm2

About the Author


Hi, I'm John, editor-in-chief of an Flexel Battery online magazine!

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