Secondary cell and its manufacturing method

Details Secondary cell and its manufacturing method Secondary cell and its manufacturing method

2011-06-14

2011-06-14

Yuan, Dah-Wei D (Department: 1727)

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

C429S137000, C429S140000, C429S141000, C429S147000

Reexamination Certificate

active

07960050

ABSTRACT:
A secondary battery includes an electrode group5formed by winding a positive electrode plate1and a negative electrode plate2with a separator3interposed therebetween. Each of the positive and negative electrode plates1and2includes a current collector1and mixture layers8and9each containing an active material and formed on the surface of the current collector1. A plurality of trenches30are formed in the surfaces of the mixture layers8and9of at least one of the positive electrode plate1and the negative electrode plate2. The trenches30have curvature portions at side edges30band bottom centers30athereof.

REFERENCES:
patent: 2005/0053833 (2005-03-01), Hayashida et al.
patent: 2006/0051669 (2006-03-01), Hayashida et al.
patent: 2009/0325045 (2009-12-01), Miyahisa et al.
patent: 08-153515 (1996-06-01), None
patent: 11-154508 (1999-06-01), None
patent: 2001-023612 (2001-01-01), None
patent: 2002-015764 (2002-01-01), None
patent: 2003-197265 (2003-07-01), None
patent: 2004-006275 (2004-01-01), None
patent: 2004-158441 (2004-06-01), None
patent: 2005-285607 (2005-10-01), None
patent: 285607 (2005-10-01), None
patent: 2006-107853 (2006-04-01), None
patent: WO 98/48466 (1998-10-01), None
Japanese Office Action, with English translation, issued in Japanese Patent Application No. JP 2008-542132, mailed Jan. 20, 2009.
Chinese Office Action, issued in Chinese Patent Application No. 200780035787.3, dated Sep. 21, 2010.

Affiliated with

Also associated with

Rating

Secondary cell and its manufacturing method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Secondary cell and its manufacturing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secondary cell and its manufacturing method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2691423