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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 9722245 B1

PDFFull Text
Date of Patent:
Aug. 01, 2017

Filed:

Apr. 15, 2015

Sulfur-carbon nanocomposites and their application as cathode materials in lithium-sulfur batteries

Applicant:

Ut-battelle, Llc, Oak Ridge, TN (US);

Inventors:

Chengdu Liang, Knoxville, TN (US);

Nancy J. Dudney, Knoxville, TN (US);

Jane Y. Howe, Oak Ridge, TN (US);

Assignee:

UT-Battelle, LLC, Oak Ridge, TN (US);

Attorney:

Scully Scott Murphy & Presser

Primary Examiner:

Maria J Laios

Assistant Examiner:

Robert S Carrico

Int. Cl.
CPC ...
H01M 4/58 (2010.01); H01M 4/133 (2010.01); H01M 4/04 (2006.01); H01M 10/0565 (2010.01); H01M 4/36 (2006.01); H01M 10/0566 (2010.01); H01M 10/0569 (2010.01); H01M 4/1397 (2010.01); C01B 31/12 (2006.01); H01M 4/1393 (2010.01); H01M 4/136 (2010.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 10/0567 (2010.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/5815 (2013.01); C01B 31/12 (2013.01); H01M 4/0402 (2013.01); H01M 4/0416 (2013.01); H01M 4/0471 (2013.01); H01M 4/133 (2013.01); H01M 4/136 (2013.01); H01M 4/1393 (2013.01); H01M 4/1397 (2013.01); H01M 4/362 (2013.01); H01M 4/364 (2013.01); H01M 4/581 (2013.01); H01M 4/587 (2013.01); H01M 4/625 (2013.01); H01M 10/052 (2013.01); H01M 10/0565 (2013.01); H01M 10/0566 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); H01M 2004/021 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract

The invention is directed in a first aspect to a sulfur-carbon composite material comprising: (i) a bimodal porous carbon component containing therein a first mode of pores which are mesopores, and a second mode of pores which are micropores; and (ii) elemental sulfur contained in at least a portion of said micropores. The invention is also directed to the aforesaid sulfur-carbon composite as a layer on a current collector material; a lithium ion battery containing the sulfur-carbon composite in a cathode therein; as well as a method for preparing the sulfur-composite material.

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