David M Pasquariello

US Patent:

6419880, Jul 16, 2002

Filed:

Nov 15, 1999

Appl. No.:

09/440607

Inventors:

David M. Pasquariello - Pawtucket RI

Assignee:

EIC Laboratories, Inc. - Norwood MA

International Classification:

B01J 2034

US Classification:

422 94, 436139, 436140, 436141, 436142, 436143, 436151, 436152, 436174, 436183, 204406, 422 95, 422 96, 422 98, 422105, 502 34

Abstract:

The invention includes systems and methods which allow reactivation of supported noble metal catalysts. The method involves heating the catalyst in the presence of a gaseous hydrocarbon in the absence of oxidizing agents. Systems of the invention provide for in situ reactivation of catalytic material.

US Patent:

58585737, Jan 12, 1999

Filed:

Aug 23, 1996

Appl. No.:

8/703577

Inventors:

Kuzhikalail M. Abraham - Needham MA
James F. Rohan - Cork City, IE
Conrad C. Foo - Dedham MA
David M. Pasquariello - Pawtucket RI

Assignee:

EIC Laboratories, Inc. - Norwood MA

International Classification:

H01M 1040

US Classification:

429198

Abstract:

This invention features the use of redox reagents, dissolved in non-aqueous electrolytes, to provide overcharge protection for cells having lithium metal or lithium-ion negative electrodes (anodes). In particular, the invention features the use of a class of compounds consisting of thianthrene and its derivatives as redox shuttle reagents to provide overcharge protection. Specific examples of this invention are thianthrene and 2,7-diacetyl thianthrene. One example of a rechargeable battery in which 2,7-diacetyl thianthrene is used has carbon negative electrode (anode) and spinet LiMn. sub. 2 O. sub. 4 positive electrode (cathode).

US Patent:

6060025, May 9, 2000

Filed:

Sep 23, 1997

Appl. No.:

8/935946

Inventors:

David M. Pasquariello - Pawtucket RI

Assignee:

EIC Laboratories, Incorporated - Norwood MA

International Classification:

G01N 2716

US Classification:

422 94

Abstract:

The invention includes systems and methods which allow reactivation of supported noble metal catalysts. The method involves heating the catalyst in the presence of a gaseous hydrocarbon in the absence of oxidizing agents. Systems of the invention provide for in situ reactivation of catalytic material.

US Patent:

48574236, Aug 15, 1989

Filed:

Dec 9, 1988

Appl. No.:

7/284746

Inventors:

Kuzhikalail M. Abraham - Needham MA
David M. Pasquariello - Pawtucket RI

Assignee:

EIC Labotatories, Inc. - Norwood MA

International Classification:

H01M 614
H01M 616

US Classification:

429194

Abstract:

The invention features the use of redox reagents, dissolved in non-aqueous electrolytes, to provide overcharge protection for cells having alkali metal negative electrodes (anodes). In particular, the invention features the use of organometallic compounds, known as metallocenes, as redox shuttle reagents to provide overcharge protection. Specific examples of this invention are bis(cyclopentadienyl)iron, known as ferrocene; bis(n-butyl-cyclopentadienyl)iron, known as butylferrocene; bis(cyclopentadienyl)nickel, known as nickelocene; and bis(cyclopentadienyl)cobalt, known as cobaltocene. An example of a rechargeable battery in which these redox reagents are used as an Li negative electrode and a TiS. sub. 2 positive electrode.

US Patent:

53326318, Jul 26, 1994

Filed:

Apr 19, 1991

Appl. No.:

7/689085

Inventors:

Kuzhikalail M. Abraham - Needham MA
Mohamed Alamgir - Dedham MA
David M. Pasquariello - Pawtucket RI

Assignee:

E.I.C. Corp. - Norwood MA

International Classification:

H01M 614

US Classification:

429 48

Abstract:

An electrochemical cell, comprising a lithium anode, a cathode, and a liquid electrolyte of lithium tetrachloroaluminate dissolved in thionyl chloride, has a coating of a Li ion conductive solid polymer electrolyte on the anode. An example of the solid polymer electrolyte is a Li salt complex of poly[bis(methoxyethoxyethoxy)phosphazene].

US Patent:

49349228, Jun 19, 1990

Filed:

Jan 9, 1989

Appl. No.:

7/294816

Inventors:

Kuzhikalail M. Abraham - Needham MA
David M. Pasquariello - Pawtucket RI

Assignee:

EIC Laboratories, Inc. - Norwood MA

International Classification:

H01M 436

US Classification:

429194

Abstract:

A secondary, rechargeable, battery comprising as a cathode-active material, a transition metal oxysulfide having the formula: M. sub. y. sup. 1 M. sub. l. sup. 2. sub. --Y O. sub. x S. sub. n--x wherein M. sup. 1 and M. sup. 2 are transition metals, y is higher than zero but not higher than 1, x is higher than zero and less than 1, and n is half the sum of the oxidation states of the transition metals M. sup. 1 and M. sup. 2, preferably molybdenum oxysulfide; an anode active material; and an electrolyte. Also disclosed is a method of making such a transition metal oxysulfide by mixing at least one transition metal oxide and at least one transition metal sulfide in aqueous ammonia, removing the ammonia and then decomposing the residue at elevated temperature under non-oxidizing conditions.