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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 10665863 B1

PDFFull Text
Date of Patent:
May. 26, 2020

Filed:

Aug. 21, 2015

Additives for fast chargeable lithium ion batteries

Applicant:

Nec Corporation, Tokyo, JP;

Inventors:

Qian Cheng, Tokyo, JP;

Noriyuki Tamura, Tokyo, JP;

Assignee:

NEC CORPORATION, Minato-ku, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Alexander Usyatinsky

Int. Cl.
CPC ...
H01M 10/0525 (2010.01); H01M 4/62 (2006.01); H01M 4/587 (2010.01); C01B 32/192 (2017.01); C01B 32/184 (2017.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/625 (2013.01); C01B 32/184 (2017.08); C01B 32/192 (2017.08); H01M 4/587 (2013.01); H01M 10/0525 (2013.01); C01B 2204/02 (2013.01); C01B 2204/04 (2013.01); C01B 2204/22 (2013.01); C01P 2006/10 (2013.01); C01P 2006/14 (2013.01); C01P 2006/16 (2013.01); H01M 10/052 (2013.01); H01M 2220/20 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract

A porous graphene material with 1 to 200 graphene layers, wherein: at least one monolayer graphene is included; pores with the size of 70 nm to 200 nm are scattered over the surface of the material and the number of pores is 10 to 500 per μm; an oxygen concentration is below 0.8 atomic %; and the ratio of the peak height (I) of D band in a Raman scattering spectrum of the material to that of the peak height (I) of G band at 1,570 to 1,596 cmin the spectrum (I/I) is between 1 and 1.35. The porous graphene material is suitable for conductive additives for electrodes of Lithium ion battery.

Find Patent Forward Citations

Cheng, Qian. (2020). Additives for fast chargeable lithium ion batteries (U.S. Patent No. 10665863). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10665863

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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