| Summary |
Using PVDF-HFP, lithium salt, LLZOplasticizer to prepare HSE membrane (ơi=4.6×10-4 S/cm, 25oC). The Free-standingcathode-supported membranes in the pouch-type NCM811HSELi ASSLBs were designed to enhance the mechanical strength (Li-Nafion-coated cellulose support, the total membrane thickness is 40-60 µm), improve Li-ion conductivity (Doped LLZO/Li salt), reduce interfacial impedance (PVDF-HFP/Li salt/plasticizer),inhibit Li dendritic deposition. The energy density of the ASSLBs has reached 300 Wh/kg, which exceeds the current best LIBs by 50.
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| Scientific Breakthrough |
Our team attempted to increase the active material (≧50) of composite cathodereduce the weights of HSE membrane (30)lithium metal (30). The NCM811 HSE (ơi=4.6×10-4 S/cm, 25oC) Li pouch-type ASSLBs (Area: 3 cm × 5 cm, 15 cm2), the energy densities at 0.1C, 4.5 V are 310 Wh/kg (35oC)317 Wh/kg (45oC), respectively. |
| Industrial Applicability |
Our team’s ASSLB technology has applied for 7 multi-country invention patents as the layout of global patents the related technologies may be technically transferred to AzTrong, Cheng Uei Precision,PST Co., E-Current Co., Formosa Lithium Iron Oxide Corp., Formosa Plastics (Transport) Corp., Nan Ya Plastics, DynaPack, Smaindus, Runner Group, etc. The technology can be extended to the next generation of positive/negative materials such as ASSLBs with higher-energy-density Li-O2Li-S,can also be applied to supercapacitors, flexible micro batteries,lithium-ion capacitors.
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