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公开(公告)号：US20230022742A1
公开(公告)日：2023-01-26
申请号：US17851065
申请日：2022-06-28
Inventor： Shengbo LU , Yong ZHU , Wai Yin WONG , Wing Lung HON , Qiuhong LI , Chenmin LlU
IPC: H01M50/411 , H01M50/403 , H01M50/449
Abstract: The invention discloses a method of manufacturing an electrochemical cell having a polymer separator membrane for separation of electrodes in the electrochemical cell, including providing a cathode and providing a polymer separator membrane. At least one cycle of irradiating the polymer separator membrane is performed by an energy beam under a radiation dose ranging between 50 and 200 kGy to effect a cross-linking in the polymer separator membrane. The polymer separator membrane is maintained at a temperature between 30° C. and 70° C. An anode is then provided. Subsequently, the polymer separator membrane is compressed between the cathode and the anode. An electrolyte is provided to form the electrochemical cell.
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公开(公告)号：US20200044236A1
公开(公告)日：2020-02-06
申请号：US16599139
申请日：2019-10-11
Inventor： Juncao BIAN , Shengbo LU , Chenmin LIU , Wai Yin WONG , Hong ZHAO
IPC: H01M4/133 , H01M10/0525 , H01M4/66
Abstract: A fast charge lithium ion battery capable of being charged or discharged with 80% capacity retention at C rate of at least 2C is provided in the present invention, which includes a fast charge graphite-based anode; a cathode; and a separator, wherein the anode includes an anode current collector and a fast charge graphite layer deposited on at least one surface of the anode current collector, the fast charge graphite having a lattice constant equals to or larger than 0.3374 nm, a D-band to G-band integrated area ratio (ID/IG) of 0.03 to 0.3, and a surface morphology of a plate-like crystal structure under a scanned electron microscope; the cathode includes a cathode current collector and one or more active materials deposited on at least one surface of the cathode current collector.
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