公开(公告)号：US20210376325A1

公开(公告)日：2021-12-02

申请号：US17400910

申请日：2021-08-12

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kiyohiro ISII ,  Takuma ASARI ,  Chiho NOBUMORI ,  Yasuyuki ITO ,  Nao MATSUMURA

IPC: H01M4/60 ,  H01G11/06 ,  H01G11/48 ,  H01G11/50 ,  H01M4/137 ,  H01M4/1399 ,  H01G11/86 ,  H01M10/0566 ,  H01M10/058 ,  H01M10/052 ,  H01G11/82 ,  H01G11/58 ,  H01G11/66 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0585

Abstract: A method for manufacturing an electrochemical device includes the following steps: a step of preparing a positive electrode, the positive electrode including a first current collector and a positive electrode layer containing a conductive polymer; a step of preparing a negative electrode, the negative electrode including a second current collector and a negative electrode layer; and a step of sealing the positive electrode, the negative electrode, and an electrolytic solution in an exterior body. The step of preparing the positive electrode includes a step of holding the positive electrode in depressurized atmosphere and then introducing gas containing CO2 as a primary component into the depressurized atmosphere.