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An efficient and scalable method has been developed to obtain hierarchically constructed microporous PVDF-HFP separators for lithium-ion batteries as shown in Figure 5.1 [106]. Figure 5.1 – Schematic representation of the large-scale preparation of PVDF-HFP separators [106]. This method produces separator membranes with excellent mechanical strength, notable porosity and high ionic conductivity, allowing battery operation over 1000 cycles with near-zero capacity fading even at 10 C [106]. Table 5.1 – Recent advances in different separator membrane types with the indication of their main properties. Types Polymer matrix Filler /Polymer Porosity/ % Ionic conductivity / mS.cm at RT Capacity / mAh.g-1 Ref Composites PVDF-HFP CuO ---- 0.028 637.2 mAh.g-1 for Graphene oxide electrode [105] 22PDF Image | Synthetic Polymer-based Membrane for Lithium Ion
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CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
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