Dinh Bao Le

US Patent:

7875388, Jan 25, 2011

Filed:

Feb 6, 2007

Appl. No.:

11/671601

Inventors:

Dinh Ba Le - Saint Paul MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

H01M 4/62

US Classification:

429217, 4292181, 429212, 2521821

Abstract:

Provided is an electrode composition comprising a powdered material capable of undergoing lithiation and delithiation, and a non-elastomeric binder comprising lithium polyacrylate, along with methods of making and using the same, as well as electrochemical cells incorporating the same.

US Patent:

7906238, Mar 15, 2011

Filed:

Sep 1, 2006

Appl. No.:

11/469561

Inventors:

Dinh Ba Le - Saint Paul MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

H01M 4/1395
H01B 1/04

US Classification:

4292181, 4292315, 4292318, 429232, 252516, 2525213

Abstract:

An electrode composition for a lithium ion battery having the formula SiSnMCwhere q, x, y, and z represent atomic percent values and (a) (q+x)>2y+z; (b) q≧0, (c) z≧0; and (d) M is one or more metals selected from manganese, molybdenum, niobium, tungsten, tantalum, iron, copper, titanium, vanadium, chromium, nickel, cobalt, zirconium, yttrium, or a combination thereof. The Si, Sn, M, and C elements are arranged in the form of a multi-phase microstructure comprising: (a) an amorphous phase comprising silicon; (b) a nanocrystalline phase comprising a metal silicide; and (c) a phase comprising silicon carbide phase when z>0; and (d) an amorphous phase comprising Sn when q>0.

US Patent:

8071238, Dec 6, 2011

Filed:

Jan 20, 2011

Appl. No.:

13/009981

Inventors:

Dinh Ba Le - Saint Paul MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

H01M 4/1395
H01B 1/04

US Classification:

4292181, 4292319, 42923195, 429232, 2525201, 2525213

Abstract:

An electrode composition for a lithium ion battery having the formula SiSnMCwhere q, x, y, and z represent atomic percent values and (a) (q+x)>2y+z; (b) q≧0, (c) z≧0; and (d) M is one or more metals selected from manganese, molybdenum, niobium, tungsten, tantalum, iron, copper, titanium, vanadium, chromium, nickel, cobalt, zirconium, yttrium, or a combination thereof. The Si, Sn, M, and C elements are arranged in the form of a multi-phase microstructure comprising: (a) an amorphous phase comprising silicon; (b) a nanocrystalline phase comprising a metal silicide; and (c) a phase comprising silicon carbide phase when z>0; and (d) an amorphous phase comprising Sn when q>0.

US Patent:

20110086268, Apr 14, 2011

Filed:

Dec 15, 2010

Appl. No.:

12/968738

Inventors:

Dinh Ba LE - Saint Paul MN, US

International Classification:

H01M 4/13
H01M 4/62
H01M 4/04

US Classification:

429217, 2521821, 4271266

Abstract:

Provided is an electrode composition comprising a powdered material capable of undergoing lithiation and delithiation, and a non-elastomeric binder comprising lithium polyacrylate, along with methods of making and using the same, as well as electrochemical cells incorporating the same.

US Patent:

60133910, Jan 11, 2000

Filed:

Jun 12, 1997

Appl. No.:

8/873757

Inventors:

Dinh Ba Le - Minneapolis MN
William H. Smyrl - New Brighton MN
Boone B. Owens - Wrightsville Beach NC
Stefano Passerini - Minneapolis MN

Assignee:

Regents of The University of Minnesota - Minneapolis MN

International Classification:

H01M 448

US Classification:

4292312

Abstract:

Nominal composition V. sub. 2 O. sub. 4. 5 (OH) materials suitable for intercalations of greater than 2. 4 Li per V. sub. 2 O. sub. 5 to yield theoretical energy density of greater than 970 Wh/Kg of cathode active material, the intercalation being completely reversible and synthesis of the materials from sol and gels, and devices incorporating these materials.

US Patent:

56746423, Oct 7, 1997

Filed:

Jun 2, 1995

Appl. No.:

8/460492

Inventors:

Dinh Ba Le - Minneapolis MN
William H. Smyrl - New Brighton MN
Boone B. Owens - Wrightsville Beach NC
Stefano Passerini - Minneapolis MN

Assignee:

Regents of the University of Minnesota - Minneapolis MN

International Classification:

H01M 402

US Classification:

429218

Abstract:

Nominal composition V. sub. 2 O. sub. 4. 5 (OH) materials suitable for intercalations of greater than 2. 4 Li per V. sub. 2 O. sub. 5 to yield theoretical energy density of greater than 970 Wh/Kg of cathode active material, the intercalation being completely reversible and synthesis of the materials from sol and gels, and devices incorporating these materials.