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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 9548167 B1

PDFFull Text
Date of Patent:
Jan. 17, 2017

Filed:

Nov. 30, 2015

Aqueous polyvinylidene fluoride composition

Applicant:

Arkema Inc., King of Prussia, PA (US);

Inventors:

Ramin Amin-Sanayei, Malvern, PA (US);

Ravi R. Gupta, Pottstown, PA (US);

Assignee:

Arkema Inc., King of Prussia, PA (US);

Attorney:

Thomas F. Roland

Primary Examiner:

Ula C Ruddock

Assistant Examiner:

Matthew Van Oudenaren

Int. Cl.
CPC ...
H01G 11/48 (2013.01); H01G 11/52 (2013.01); H01M 10/052 (2010.01); H01M 2/16 (2006.01); H01M 4/131 (2010.01); H01M 4/136 (2010.01); H01M 4/62 (2006.01); H01M 4/86 (2006.01); H01M 8/10 (2016.01); H01M 4/04 (2006.01); H01M 4/139 (2010.01); H01M 4/1391 (2010.01); H01M 4/1393 (2010.01); H01M 4/1397 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01G 11/48 (2013.01); H01G 11/52 (2013.01); H01M 2/1673 (2013.01); H01M 4/0404 (2013.01); H01M 4/131 (2013.01); H01M 4/136 (2013.01); H01M 4/139 (2013.01); H01M 4/623 (2013.01); H01M 4/8668 (2013.01); H01M 8/1004 (2013.01); H01M 10/052 (2013.01); H01M 4/1391 (2013.01); H01M 4/1393 (2013.01); H01M 4/1397 (2013.01); H01M 4/621 (2013.01); H01M 10/0525 (2013.01); H01M 2008/1095 (2013.01); Y02E 60/122 (2013.01); Y02E 60/13 (2013.01); Y02P 70/54 (2015.11);
Abstract

The invention relates to an aqueous fluoropolymer, and preferably polyvinylidene fluoride (PVDF), composition for manufacturing electrodes for use in non-aqueous-type electrochemical devices, such as batteries and electric double layer capacitors. The composition contains aqueous PVDF binder, and one or more powdery electrode-forming materials. In one embodiment, the composition is free of fluorinated surfactant In another embodiment, one or more fugitive adhesion promoters are added. The electrode formed from the composition of the invention exhibits interconnectivity and irreversibility that is achieved from the use of aqueous PVDF binder.

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