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公开(公告)号：US11342132B2
公开(公告)日：2022-05-24
申请号：US16931705
申请日：2020-07-17
发明人： Daniel Qi Tan , Dayarker Gandla , Guanghui Song
摘要： The present disclosure relates to an electrode for supercapacitor, preparation method and use thereof. The electrode has an electrode terminal, an active layer and a coating layer from inside to outside. A material for preparing the coating layer includes an oxygenated compound, which contains at least one of transition metal elements or is doped with a substance containing a transition metal element. The coating layer on the surface of the active layer prevents organic electrolytes from being easily adsorbed and nucleated in the porous structure of the electrode surface due to interface defects, and facilitates to weaken the interface problems existing between the electrolyte and the electrode surface. The capacitor can significantly increase the operating voltage window (may be up to above 4V) and capacitance of the supercapacitor, and further increase energy density thereof.
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公开(公告)号：US20220064396A1
公开(公告)日：2022-03-03
申请号：US17038210
申请日：2020-09-30
发明人： Daniel Qi Tan , Guanghui Song , Xudong Wu
摘要： The disclosure belongs to the field of film materials, and discloses a high-temperature resistant modified polypropylene film, and a preparation method and use thereof. The modified polypropylene film includes a polypropylene film, and an oxide layer and/or nitride layer, each of which has a thickness of 20-500 nm, on the surface of the polypropylene film. It can significantly improve the thermal stability and high-temperature withstand voltage property of the polypropylene film by depositing the oxide layer or nitride layer of appropriate thickness on the surface of the polypropylene film by an ALD technology. The modified polypropylene film has high-temperature resistance, such as resistance to at high temperature of 150° C., and very small deformation quantity at high temperature, and can withstand a high breakdown voltage at high temperature. For example, the modified polypropylene film can withstand a voltage of 580 kV/mm at 140° C. The modified polypropylene film has widespread applications in the field of electronic products with high temperature requirements, such as the field of capacitors.
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公开(公告)号：US20210335556A1
公开(公告)日：2021-10-28
申请号：US16931705
申请日：2020-07-17
发明人： Daniel Qi TAN , Dayarker GANDLA , Guanghui SONG
IPC分类号： H01G11/46
摘要： The present disclosure relates to an electrode for supercapacitor, preparation method and use thereof. The electrode comprises an electrode terminal, an active layer and a coating layer from inside to outside. A material for preparing the coating layer comprises an oxygenated compound, which contains at least one of transition metal elements or is doped with a substance containing a transition metal element. Providing the coating layer on the surface of the active layer prevents organic electrolytes from being easily adsorbed and nucleated in the porous structure of the electrode surface due to interface defects, and facilitates to weaken the interface problems existing between the electrolyte and the electrode surface. The capacitor prepared by means of the electrode according to the embodiments of the present disclosure can significantly increase the operating voltage window (may be up to above 4V) and capacitance of the supercapacitor, and further increase energy density thereof.
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公开(公告)号：US11597808B2
公开(公告)日：2023-03-07
申请号：US17038210
申请日：2020-09-30
发明人： Daniel Qi Tan , Guanghui Song , Xudong Wu
摘要： A method for preparing a modified polypropylene film, the modified polypropylene film comprising a polypropylene film; and, an oxide layer and/or nitride layer, each of which has a thickness of 20-500 nm, on a surface of the polypropylene film; the method comprising: depositing the oxide layer or nitride layer on a surface of the polypropylene film by an Atomic Layer Deposition (ALD) process to obtain the modified polypropylene film; wherein the step of depositing the oxide layer or nitride layer comprises: placing the polypropylene film in an ALD reaction chamber; vacuumizing; heating up; introducing a carrier gas; and, passing at least two precursors into the reaction chamber alternately for reaction, resulting in the modified polypropylene film; wherein the precursors comprise a precursor for providing a metal element or Si, and a precursor for providing an oxygen or nitrogen element.
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