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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10508038 B1

PDFFull Text
Date of Patent:
Dec. 17, 2019

Filed:

Feb. 16, 2016

Carbon material, method for manufacturing same, and use thereof

Applicant:

Showa Denko K.k., Minato-ku, Tokyo, JP;

Inventors:

Akihisa Tonegawa, Tokyo, JP;

Daisuke Kohno, Tokyo, JP;

Daisuke Harada, Tokyo, JP;

Yasuaki Wakizaka, Tokyo, JP;

Assignee:

SHOWA DENKO K.K., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Jane J Rhee

Int. Cl.
CPC ...
H01M 6/16 (2006.01); C01B 32/205 (2017.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 10/0569 (2010.01); C01B 32/05 (2017.01); H01M 4/133 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/583 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01);
U.S. Cl.
CPC ...
C01B 32/205 (2017.08); C01B 32/05 (2017.08); H01M 4/133 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/583 (2013.01); H01M 4/587 (2013.01); H01M 4/623 (2013.01); H01M 4/625 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); H01M 10/0569 (2013.01); C01P 2002/72 (2013.01); C01P 2002/74 (2013.01); C01P 2002/82 (2013.01); C01P 2004/51 (2013.01); C01P 2004/60 (2013.01); C01P 2006/10 (2013.01); C01P 2006/11 (2013.01); C01P 2006/12 (2013.01); H01M 2220/10 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01); Y02T 10/7011 (2013.01);
Abstract

The present provides a carbon material containing 50 to 1,000 ppm by mass of vanadium (V), wherein a mean particle diameter D50 is 3 to 7 μm; a tapping density after 400 times of tapping is 0.40 to 1.00 g/cm; a BET specific surface area is 4.0 to 12.0 m/g; an R value (ID/IG) measured in the spectrum observed by Raman spectroscopy is 0.10 to 0.30; and an interplanar spacing dof plane (002) (nm) and Lc(nm) as being the size in the c-axis direction of the graphite crystals satisfy the relationship represented by the following formulae (1) and (2)0.3362≤d≤0.3370  (1)−23660×+8010≤≤−23660×+8025  (2);which is suitable for a non-aqueous electrolytic secondary battery having a low resistance and a high coulomb efficiency; a method for producing the same; a carbon material for a battery electrode; an electrode; and a lithium-ion secondary battery using the above-described carbon material.

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