Powdered graphite and nonaqueous electrolyte secondary battery

Details Powdered graphite and nonaqueous electrolyte secondary battery Powdered graphite and nonaqueous electrolyte secondary battery

2011-07-12

2011-07-12

Yuan, Dah-Wei D (Department: 1727)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S122000

Reexamination Certificate

active

07976984

ABSTRACT:
A powdered graphite and a nonaqueous electrolyte secondary battery are provided. A nonaqueous electrolyte secondary battery is provided which has a highly efficient charge and discharge performance and superior cycle properties. Spheroidizing treatment is appropriately performed for natural graphite having a high capacity by grinding and/or applying impact to form a negative electrode active material, and a negative electrode active layer formed therefrom is provided on a metal electrode foil. Subsequently, the metal electrode foil is applied with a magnetic field so that the spheroidized natural graphite is oriented, followed by drying and compression molding, thereby forming a negative electrode. By the use of this negative electrode, a nonaqueous electrolyte secondary battery can be formed having superior battery properties such as the cycle properties and peeling strength.

REFERENCES:
patent: 6139990 (2000-10-01), Kubota et al.
patent: 6573007 (2003-06-01), Majima et al.
patent: 6623888 (2003-09-01), Omaru et al.
patent: 6730135 (2004-05-01), Choi et al.
patent: 7326497 (2008-02-01), Matsubara et al.
patent: 2004/0072076 (2004-04-01), Matsubara et al.
patent: 11-263612 (1999-09-01), None
patent: 2000-067871 (2000-03-01), None
patent: 2000-223120 (2000-08-01), None
patent: 2001-338640 (2001-12-01), None
patent: 2002216757 (2002-08-01), None
patent: 2003-068301 (2003-03-01), None
patent: 2003-119014 (2003-04-01), None
patent: 2003-197182 (2003-07-01), None
patent: 2003-197185 (2003-07-01), None
patent: 2003-197189 (2003-07-01), None
patent: 2003-346804 (2003-12-01), None
IPDL machine translation of JP 2003-068301.
Machine translation of JP 2002-216757.

Affiliated with

Also associated with

Rating

Powdered graphite and nonaqueous electrolyte secondary battery does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Powdered graphite and nonaqueous electrolyte secondary battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Powdered graphite and nonaqueous electrolyte secondary battery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2727992