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.

Date of Patent:
Jul. 28, 2020

Filed:

Sep. 29, 2017
Applicant:

Grst International Limited, Hong Kong, HK;

Inventors:

Kam Piu Ho, Hong Kong, HK;

Ranshi Wang, Hong Kong, HK;

Peihua Shen, Guangdong, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/62 (2006.01); H01M 4/133 (2010.01); H01M 4/1393 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01); H01M 4/139 (2010.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); H01M 4/133 (2013.01); H01M 4/1393 (2013.01); H01M 10/0525 (2013.01); H01M 4/13 (2013.01); H01M 4/139 (2013.01); H01M 2004/021 (2013.01);
Abstract

Provided herein is a lithium-ion battery anode slurry, comprising: an anode active material, a conductive agent, a binder material, and a solvent, wherein the anode active material has a particle size D50 in the range from about 10 μm to about 40 μm, and wherein the slurry coated onto a current collector having a wet film thickness of about 100 μm has a drying time of about 5 minutes or less under an environment having a temperature of about 60° C. to about 90° C. and a relative humidity of about 25% to about 40%. The anode slurry disclosed herein has homogeneous ingredient dispersion and quick drying capability for making a lithium-ion battery with high quality and consistent performance. In addition, these properties of the anode slurry increase productivity and reduce the cost of manufacturing lithium-ion batteries.


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