Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Reexamination Certificate
2007-08-21
2007-08-21
Yuan, Dah-Wei (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
C429S094000, C429S246000, C029S623500
Reexamination Certificate
active
10781948
ABSTRACT:
To provide a non-aqueous electrolyte secondary battery adapted to prevent an internal short circuit between an positive electrode and a negative electrode caused by the penetration of electrically conductive micro particles through a separator, which occurs when winding up electrodes, and manufacturing methods of an electrode used therein, whereby the non-aqueous electrolyte secondary battery having a coiled electrode assembly is formed through the multilayer winding of an positive electrode90having a metallic collector76coated with an positive electrode mixture78composed of an positive electrode active material that occludes and liberates lithium ions, a negative electrode86having a metallic collector82coated with a negative electrode mixture84, composed of a negative electrode active material that occludes and liberates lithium ions, and a separator72interposed between the positive electrode and the negative electrode, wherein the positive electrode90has an insulating layer100formed by means of the dried coating method, the heat seal tape method, or the hot melt coating method on a portion of the metallic collector76which is uncoated with the positive electrode mixture78and opposed to the negative electrode86coated with the negative electrode mixture84, through the separator72.
REFERENCES:
patent: 4610956 (1986-09-01), Fuchizawa et al.
patent: 5631102 (1997-05-01), Spillman et al.
patent: 6387564 (2002-05-01), Yamashita et al.
patent: 2003/0224242 (2003-12-01), Kaito et al.
patent: 09213338 (1997-08-01), None
patent: 10-2411737 (1998-09-01), None
patent: 2000-030742 (2000-01-01), None
patent: 2000-188115 (2000-07-01), None
patent: 2002-042881 (2002-02-01), None
patent: 2004-164867 (2004-06-01), None
patent: WO98/38688 (1998-09-01), None
patent: WO 02/101854 (2002-12-01), None
Miyamoto Yoshikumi
Ohshita Ryuji
Okazaki Jun
Okumura Yoshinobu
Tanaka Hitoshi
Nixon & Vanderhye P.C.
O'Neill Karie
Sanyo Electric Co,. Ltd.
Yuan Dah-Wei
LandOfFree
Non-aqueous electrolyte secondary battery and manufacturing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-aqueous electrolyte secondary battery and manufacturing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-aqueous electrolyte secondary battery and manufacturing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3876077