公开(公告)号：US20190280303A1

公开(公告)日：2019-09-12

申请号：US16296531

申请日：2019-03-08

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Koji TORITA ,  Takuya ASARI ,  Akihiro OCHIAI ,  Yusuke FUKUMOTO ,  Naoyuki WADA

IPC: H01M4/66 ,  H01M4/70 ,  H01M10/0525 ,  H01M4/131 ,  H01M2/26 ,  H01M10/0587

Abstract: A positive electrode includes at least a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is formed on a surface of the positive electrode current collector. The positive electrode current collector includes an aluminum foil and a porous film. The porous film covers a surface of the aluminum foil. The porous film contains at least aluminum oxide. The porous film has a thickness not smaller than 10 nm and not greater than 800 nm. The porous film has a dynamic hardness not lower than 5 and not higher than 200.

公开(公告)号：US20220302460A1

公开(公告)日：2022-09-22

申请号：US17831678

申请日：2022-06-03

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Koji TORITA ,  Takuya ASARI ,  Akihiro OCHIAI ,  Yusuke FUKUMOTO ,  Naoyuki WADA

IPC: H01M4/66 ,  H01M4/70 ,  H01M10/0525 ,  H01M10/0587 ,  H01M4/131 ,  H01M50/531

Abstract: A positive electrode includes at least a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is formed on a surface of the positive electrode current collector. The positive electrode current collector includes an aluminum foil and a porous film. The porous film covers a surface of the aluminum foil. The porous film contains at least aluminum oxide. The porous film has a thickness not smaller than 10 nm and not greater than 800 nm. The porous film has a dynamic hardness not lower than 5 and not higher than 200.