At present, the main products of bipolar plates for flow batteries are conductive PP plates, conductive PE plates, flexible graphite plates, and isostatic pressed impregnated sealed graphite plates. The high internal resistance of conductive PP and conductive PE plates severely restricts the improvement of battery energy density. Flexible graphite sheets have poor toughness, low strength, cracking, and are easily damaged during assembly. Isostatic pressure impregnation sealed graphite plate has a thick thickness, heavy weight, high brittleness, and is difficult to apply in bulk. The composite flexible graphite bipolar plate prepared by our company is reinforced with carbon fiber skeleton, which has high strength, high conductivity, low density, and thin thickness. Can adapt to various flow battery systems and application scenarios.
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Composite flexible graphite bipolar plate |
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Compressive strength |
Tensile strength |
Resistance value (Square resistance) |
Specific conductance |
Thickness |
Work temperature |
Density |
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≥100Mpa |
≥50Mpa |
20-40mΩ |
300-550S/cm |
0.5-0.9mm |
-30-180℃ |
1.4-1.6g/cm3 |

Can be 360 ° bend, no cracking deformation
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