Shufu Peng

US Patent:

20110143018, Jun 16, 2011

Filed:

Sep 3, 2010

Appl. No.:

12/876079

Inventors:

Shufu Peng - Sunnyvale CA, US
Lawrence S. Pan - Los Gatos CA, US

International Classification:

B05D 5/12
C23C 14/54
B82Y 30/00
B82Y 40/00

US Classification:

427 9, 427600, 427457, 427 78, 977948, 977842, 977742

Abstract:

The invention provides, in preferred embodiments, methods, systems, and devices arising therefrom for making battery electrodes, in particular, for lithium-ion batteries. Unlike conventional slurry coating methods that use mechanical means to coat thick pastes of active material, other materials, and solvent(s) onto a substrate, the invention provides for a method to produce electrode coatings onto support in a multi-layer approach to provide highly uniform distribution of materials within the electrode. Problems of differential sedimentation of particles in slurries found in conventional methods are minimized with the methods of the present invention. Also included are systems for producing in large-scale the battery electrodes of the invention. Further included are electrodes produced by the methods and systems described herein.

US Patent:

20110183203, Jul 28, 2011

Filed:

Jan 27, 2011

Appl. No.:

12/931320

Inventors:

Chunsheng Du - Fremont CA, US
Clark Dong - Los Gatos CA, US
Lawrence S. Pan - Los Gatos CA, US
Shufu Peng - Sunnyvale CA, US

International Classification:

H01M 4/62
B05D 5/12
B82Y 30/00

US Classification:

429217, 427 77, 427 78, 427470, 977742

Abstract:

Methods and devices arising from the practice thereof for making and using battery electrodes formed onto ion permeable, electrically non-conductive substrates, preferably battery separators are disclosed herein. Electrodes are formed onto substrates using a variety of methods including, but not limited to, spray coating and electrophoretic deposition. Electrically conductive layers may be applied to the electrode coating layer side opposite or adjacent to the substrate to act as current collectors for the battery. Multilayer devices having alternating layers of conductive layers, electrode layers and substrates, wherein the conductive layers may be in electrical communication with other conductive layers to form a battery.

US Patent:

20110311855, Dec 22, 2011

Filed:

Sep 3, 2010

Appl. No.:

12/876090

Inventors:

Shufu Peng - Sunnyvale CA, US
Lawrence S. Pan - Los Gatos CA, US
Clark Dong - Los Gatos CA, US

International Classification:

H01M 2/16
H01M 4/62
B05D 5/12

US Classification:

429144, 427466, 427 58, 429232

Abstract:

The invention provides solutions to the problems and needs stated above by providing battery separators that are inexpensive and easy to produce, provide superior performance over traditional separators, and provide robust safety. Towards those ends, the invention provides, in one aspect, the invention provides for a battery electrode comprising: an electrode having a surface, the electrode comprising: a plurality of active material particles; and, a plurality of electrically conductive particles, wherein the active material particles are capable of reversibly storing ions; a separator layer upon the electrode surface, the separator layer having top and bottom surfaces, the bottom surface facing each electrode surface, the separator layer comprising: a plurality of organic polymer particles, each particle having a gross cross sectional dimension between 0.1 μm and 250 μm and comprising a plurality of organic polymer chains, wherein at least some of the organic polymer chains are covalently cross-linked to each other; and, a polymeric binder, wherein the plurality of organic polymer particles are embedded in the polymeric binder.

US Patent:

20110123866, May 26, 2011

Filed:

Sep 3, 2010

Appl. No.:

12/876035

Inventors:

Lawrence S. Pan - Los Gatos CA, US
Shufu Peng - Sunnyvale CA, US
Anna Lynne Heinkel - Coyote CA, US

International Classification:

H01M 4/525
H01M 4/62
H01M 4/485
H01M 4/04

US Classification:

429221, 429232, 4292315, 427 58, 427458

Abstract:

The invention disclosed herein provides for methods and apparatuses that yield electrodes having at least one functional gradient therein. In many embodiments, the electrodes comprise an electrode matrix having a plurality of layers, where at least two of the layers differs functionally, in composition, structure, or, organization. High-throughput electrode screening apparatuses are disclosed that include array formers and testers. Electrodes and battery cells arising from the methods and apparatuses disclosed herein are likewise disclosed. The methods, apparatuses, and resulting electrode and cell devices are, in some embodiments, ideally suited for use in lithium-ion batteries.

US Patent:

20210384511, Dec 9, 2021

Filed:

Oct 16, 2019

Appl. No.:

17/285817

Inventors:

- Wilmington DE, US
Shufu PENG - Hockessin DE, US

Assignee:

HERCULES LLC - Wilmington DE

International Classification:

H01M 4/62
H01M 4/38
H01M 4/587
H01M 10/0525
H01M 4/04

Abstract:

An aqueous binder composition comprising a cationic copolymer derived from at least one cationic monomer and at least one nonionic monomer is disclosed. Additionally, the present disclosure relates generally to electrode compositions and methods of making electrodes, especially anodes, with the binder composition.

US Patent:

20200259159, Aug 13, 2020

Filed:

Oct 3, 2018

Appl. No.:

16/753687

Inventors:

- Wilmington DE, US
Shufu PENG - Hockessin DE, US
Donghai WANG - State College PA, US
Jiangxuan SONG - Xi'an jiaotong University, CN
Qingquan HUANG - State College PA, US
Kelly Anne BRUSH - Newark DE, US

Assignee:

HERCULES LLC - Wilmington DE

International Classification:

H01M 4/04
H01M 4/62
H01M 10/0525
H01M 10/0565
C08G 18/32
C08G 18/76
H01M 4/66
H01M 4/38
H01M 4/583
H01M 4/46

Abstract:

The present disclosure relates generally to a coated electrode for use in preparation of lithium ion batteries and methods of preparing such. More particularly, the present disclosure relates to a polymer coating composition for coating electrodes of the lithium ion batteries (LIBs). The polymer coating composition comprises a polyurethane gel polymer electrolyte (GPE) formed by a reaction of an isocyanate and a polyol.

US Patent:

20180019457, Jan 18, 2018

Filed:

Jan 28, 2016

Appl. No.:

15/546773

Inventors:

- Wilmington DE, US
Sung Gun CHU - Springfield PA, US
Alan Edward GOLIASZEWSKI - Hockessin DE, US
David K. HOOD - Basking Ridge NJ, US
Shufu PENG - Hockessin DE, US
Michael A. A. TALLON - Aberdeen NJ, US
Bruce FILLIPO - Springfield PA, US

International Classification:

H01M 2/16
C04B 26/14
C04B 24/02
C04B 14/02
C04B 26/06
C04B 24/26
H01M 10/0525
C04B 24/12
C04B 111/00
C04B 103/00

Abstract:

A ceramic binder composition is disclosed as well as a method of making and using the same. Additionally, a ceramic coated separator used in, for example but without limitation, lithium ion batteries is disclosed.

US Patent:

20150243994, Aug 27, 2015

Filed:

Feb 20, 2015

Appl. No.:

14/627249

Inventors:

- Wilmington DE, US
Feng Gao - Hockessin DE, US
Alan Edward Goliaszewski - Hockessin DE, US
Shufu Peng - Hockessin DE, US

International Classification:

H01M 4/62
H01M 4/525
H01M 4/505
H01M 4/66
H01M 4/38
H01M 4/48
H01M 4/13
H01M 4/58
H01M 4/587

Abstract:

The presently disclosed and/or claimed inventive concept(s) relates generally to a composition of a slurry for use in preparation of a lithium ion battery. The slurry comprises a binder composition comprising a modified guaran for use in battery electrodes and methods of preparing such. The presently disclosed and/or claimed inventive concept(s) also relates to compositions and methods of making electrodes, either anodes and/or cathodes, with the binder composition comprising the modified guaran.