Title:
非水電解質二次電池用正極の製造方法及び非水電解質二次電池の製造方法
Document Type and Number:
Japanese Patent JP5498386
Kind Code:
B2
Abstract:
A nonaqueous electrolyte secondary battery includes: a positive electrode 4 including a positive electrode current collector and a positive electrode material mixture layer containing a positive electrode active material and a binder and provided on the positive electrode current collector; a negative electrode 5; a porous insulating layer 6 interposed between the positive electrode 4 and the negative electrode 5; and a nonaqueous electrolyte. The positive electrode 4 has a tensile extension percentage of 3.0% or more. The binder is made of polyvinylidene fluoride. The positive electrode current collector has a softening temperature lower than a crystalline melting point of the binder.
Inventors:
Muraoka Yoshiyuki
Hirakawa Yasushi
Miho Tanaka
Hirakawa Yasushi
Miho Tanaka
Application Number:
JP2010528594A
Publication Date:
May 21, 2014
Filing Date:
July 14, 2009
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01M4/139; C22C21/00; C22F1/04; H01M4/13; H01M4/62; H01M4/66; H01M10/0566; H01M10/0585; H01M10/0587; C22F1/00
Domestic Patent References:
| JP2007299724A | 2007-11-15 | |||
| JP2005222936A | 2005-08-18 | |||
| JP2006134762A | 2006-05-25 | |||
| JP2007299724A | 2007-11-15 | |||
| JP2005222936A | 2005-08-18 |
Attorney, Agent or Firm:
Maeda patent office
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