Modified graphite particles derived from scaly natural ones, pro

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4292314, 423445R, 423448, 423460, 423461, H01M 458, C01B 3104, C09C 156

Patent

active

061399906

ABSTRACT:
There are provided modified and rounded graphite particles derived from scaly natural graphite particles by modification so as to bring their form close to a spherical form and satisfying all the following requirements (a) to (c): (a) that the degree of circularity should be not less than 0.86; (b) that, upon microscopic observation, the broken-out section should show a cabbage-like appearance with graphite slices taking various directions; and (c) that, upon X ray diffraction, the peak intensity ratio (Ih.sub.110 /Ih.sub.002) between the 002 face (parallel to graphite layers) and 110 face (perpendicular to graphite layers), which serves as an index of the randomness of orientation, should be not less than 0.0050. They retain good qualities of the raw material scaly natural graphite particles and are additionally unique in structure and characteristics. A method of producing such modified particles is also provided. Further provided are secondary cells or batteries in which the modified particles showing good slurry characteristics are used as an electrode material and with which the decrease in discharge capacity is small even at high discharge current values.

REFERENCES:
patent: 5426006 (1995-06-01), Delnick et al.
patent: 5612155 (1997-03-01), Takami et al.
patent: 5951959 (1999-09-01), Nishimura
B.D. Cullity, Elements of X-Ray Diffraction, 2nd Ed., pp. 401-402, 1978.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Modified graphite particles derived from scaly natural ones, pro does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modified graphite particles derived from scaly natural ones, pro, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modified graphite particles derived from scaly natural ones, pro will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2049036

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.