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公开(公告)号：US20230246200A1
公开(公告)日：2023-08-03
申请号：US18159048
申请日：2023-01-24
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Jinhee LEE , Hyo-jung SONG , Minjae KIM , Mihwa YANG , Kyoseon KOO , Jeunggi MOON , Duckjae YOU
Abstract: An electrode including a current collector; an electrode active material layer on a surface of the current collector and including internal pores; an inner coating layer filled in the internal pores of the electrode active material layer and including an adhesive material; and an outer coating layer disposed on a surface of the electrode active material layer and including an adhesive material. A total weight of the inner coating layer and the outer coating layer per area of one surface of the current collector is about 0.1 g/m2 to about 0.7 g/m2. In addition, the electrode active material layer has a porosity of about 13% to about 16% in a cross section having a depth of about 20 μm from the surface of the electrode active material layer to the current collector.
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公开(公告)号：US20230122856A1
公开(公告)日：2023-04-20
申请号：US17966593
申请日：2022-10-14
Applicant: SAMSUNG SDI CO., LTD.
Inventor： Hyo-jung SONG , Kyoseon KOO , Minjae KIM , Junghyun NAM , Jeunggi MOON , Mihwa YANG , Duckjae YOU , Jinhee LEE
IPC: H01M10/0583 , H01M10/0525 , H01M50/46
Abstract: An electrode assembly and a rechargeable lithium battery including the same are disclosed herein. The electrode assembly includes an electrode and a separator, wherein the electrode includes a current collector, an electrode active material layer on the current collector, and an adhesive layer on the electrode active material layer; and wherein the separator has a larger surface area than the adhesive layer of the electrode; and a surface of the separator opposing the adhesive layer of the electrode is divided into an adhesive region in contact with the adhesive layer of the electrode and an overhang region not in contact with the adhesive layer of the electrode.
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