Title:
二次電池の製造方法
Document Type and Number:
Japanese Patent JP7274855
Kind Code:
B2
Abstract:
To provide a secondary battery having higher safety than a conventional lithium-ion secondary battery, a method of shortening a manufacturing process of a lithium ion secondary battery, and a method of manufacturing a lithium-ion secondary battery with high productivity using a roll-to-roll manufacturing apparatus.SOLUTION: The method includes: forming a layer containing particles of an active material on a first current collector; forming a first gel polymer layer containing an electrolytic solution on the layer containing particles of the active material; forming a second gel polymer layer containing the electrolytic solution on the first gel polymer layer; stacking a current collector in which a layer containing a second active material is formed on the second gel polymer layer; applying heat and pressure to temporarily turn the first gel polymer layer into a sol and place it between the particles of the active material; and making a state where the second gel polymer layer and the particles of the active material are in contact with each other.SELECTED DRAWING: Figure 1
Inventors:
Kazutaka Kuriki
Yumiko Yoneda
Mayumi Mikami
Yumiko Yoneda
Mayumi Mikami
Application Number:
JP2018229971A
Publication Date:
May 17, 2023
Filing Date:
December 07, 2018
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H01M10/0585; H01M4/13; H01M4/139; H01M4/62; H01M10/0565
Domestic Patent References:
| JP2002208435A | ||||
| JP2003217664A | ||||
| JP2005347018A | ||||
| JP2001210370A |
Foreign References:
| WO2000013252A1 |