Negative electrode carbon material for lithium ion secondary...

Details Negative electrode carbon material for lithium ion secondary... Negative electrode carbon material for lithium ion secondary...

2011-07-19

2011-07-19

Mayes, Melvin C (Department: 1732)

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C423S460000, C429S212000, C429S231400, C429S209000, C429S213000, C429S231800, C429S231900, C429S218200

Reexamination Certificate

active

07981395

ABSTRACT:
A negative electrode carbon material for a lithium ion secondary battery manufactured by calcinating a rice starch portion obtained by removing the pericarp and tests from unpolished rice and a method for manufacturing the same. The rice starch portion is preferably middle-grade white bran or high-grade white bran each obtained when unpolished rice is polished. The above negative electrode carbon material may have a relatively broad peak at a 2θ of 40 to 50° and a sharp peak at a 2θ of 42 to 44° in its powder X-ray (CuKα) diffraction. According to the present invention, a negative electrode carbon material for a lithium ion secondary battery which has the same quality as the prior art product can be manufactured at a low cost by making effective use of middle-grade white bran or high-grade white bran of rice.

REFERENCES:
patent: 4466932 (1984-08-01), Koyama et al.
patent: 5733829 (1998-03-01), Tange et al.
patent: 5834138 (1998-11-01), Yamada et al.
patent: 5972536 (1999-10-01), Yamada et al.
patent: 6335122 (2002-01-01), Yamada et al.
patent: 2001/0033971 (2001-10-01), Zhao et al.
patent: 2007/0189986 (2007-08-01), Wang et al.
patent: 2009/0208780 (2009-08-01), Sun et al.
patent: 2001-266850 (2001-09-01), None
patent: 2004-210464 (2004-07-01), None
patent: 2006-032091 (2006-02-01), None
European Search Report for European Application No. 06250214, mailed May 21, 2007.

Affiliated with

Also associated with

Rating

Negative electrode carbon material for lithium ion secondary... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Negative electrode carbon material for lithium ion secondary..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Negative electrode carbon material for lithium ion secondary... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2681924