Gerald Newman

US Patent:

39909158, Nov 9, 1976

Filed:

Aug 5, 1975

Appl. No.:

5/602142

Inventors:

Gerald H. Newman - Westfield NJ
Joseph A. Shropshire - Westfield NJ

Assignee:

Exxon Research and Engineering Company - Linden NJ

International Classification:

H01M 600

US Classification:

429194

Abstract:

In an electrochemical cell utilizing an alkali metal anode and a non-aqueous electrolyte there is provided a novel cathode formed by reacting a crystaline form of carbon, such as graphite, with an interhalogen fluoride in the presence of hydrogen fluoride. The preferred interhalogen fluoride is ClF. sub. 3.

US Patent:

43083242, Dec 29, 1981

Filed:

Jul 3, 1980

Appl. No.:

6/165624

Inventors:

Gerald H. Newman - Westfield NJ

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

H01M 616

US Classification:

429188

Abstract:

A method is described for purifying electrolytes used in alkali battery systems. An electrolyte is mixed with or fed through a column containing a mercury amalgam of the alkali of the electrolyte salt. The amalgam reduces the alkali-metal reactive impurities within the electrolyte. The electrolyte is also mixed with an oxidizing agent or fed through a column containing the oxidizing agent in order to oxidize impurities in the electrolyte. Electrolytes so treated will exhibit improved cycling capabilities, because the electrolyte will now be devoid of impurities which respectively can react with the anode and cathode of the battery.

US Patent:

40864030, Apr 25, 1978

Filed:

Nov 26, 1976

Appl. No.:

5/744973

Inventors:

M. Stanley Whittingham - Fanwood NJ
Gerald H. Newman - Westfield NJ

Assignee:

Exxon Research & Engineering Co. - Linden NJ

International Classification:

H01M 614

US Classification:

429194

Abstract:

An improved rechargeable, high energy density electrochemical cell comprising an anode having as its active material an alkali metal, a cathode having as its active material a transition metal trichalcogenide and a nonaqueous electrolyte containing at least one ionizable salt of the anode-active material dissolved in a dioxolane solvent. A specific example is an electrochemical cell with an anode-active material of lithium or alloys thereof, a cathode of niobium triselenide and an electrolyte of lithium perchlorate dissolved in dioxolane.

US Patent:

40525392, Oct 4, 1977

Filed:

Jan 17, 1977

Appl. No.:

5/760156

Inventors:

Joseph A. Shropshire - Westfield NJ
Gerald H. Newman - Westfield NJ

Assignee:

Exxon Research and Engineering Company - Linden NJ

International Classification:

H01M 614

US Classification:

429194

Abstract:

A battery is disclosed having a nonaqueous electrolyte, an alkali metal anode and a cathode comprising a compound of grahite formed by reacting graphite with ClF. sub. 3 and a Lewis acid fluoride of an element selected from B, Si, Ge, Sn, Pb, P, As, Sb, Bi, Ti, Zr, Hf, V, Nb and Ta.

US Patent:

40753972, Feb 21, 1978

Filed:

Mar 1, 1977

Appl. No.:

5/773284

Inventors:

Robert W. Francis - Linden NJ
Gerald H. Newman - Westfield NJ

Assignee:

Exxon Research & Engineering Co. - Linden NJ

International Classification:

H01M 1044

US Classification:

429 50

Abstract:

A novel electrochemical cell is disclosed utilizing: (a) an anode which contains as the anode-active material an alkali metal, (b) a cathode which contains as the cathode-active material a chalcogenide of the empirical formula M'A. sub. p wherein M' is one or more metals selected from the group consisting of titanium, zirconium, hafnium, niobium, tantalum and vanadium, A is one or more chalcogens selected from the group consisting of oxygen, sulfur, selenium and tellurium, and p is a numerical value between about 1. 8 and about 3. 2; and (c) a solid electrolyte consisting essentially of one or more solvated metal-alkali metal-halogen compounds of the formula ZMX. sub. n wherein Z is an alkali metal, M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P and As, and wherein X is one or more halogens selected from the group consisting of chlorine, fluorine, bromine and iodine and n is a numerical value equal to one plus the valence of the metal M. Preferred are the cells wherein the anode is lithium, the cathode contains as its cathode-active material TiS. sub. 2, and the electrolyte consists essentially of a solid solvated metal-lithium-halogen salt.

US Patent:

40740196, Feb 14, 1978

Filed:

Mar 1, 1977

Appl. No.:

5/773283

Inventors:

Paul A. Malachesky - Berkeley Heights NJ
Gerald H. Newman - Westfield NJ

Assignee:

Exxon Research & Engineering Co. - Linden NJ

International Classification:

H01M 1044

US Classification:

429 50

Abstract:

A novel electrochemical cell is disclosed utilizing an alkali metal anode, a fluorinated carbon cathode and a solid electrolyte consisting essentially of one or more solvated metal-alkali metal-halogen compounds of the formula ZMX. sub. n wherein Z is an alkali metal, M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P and As, wherein X is one or more halogens selected from the group consisting of chlorine, fluorine, bromine and iodine, and wherein n is a numerical value equal to one plus the valence of the metal M. Preferred are the cells wherein the anode is lithium, the cathode is C. sub. 2 F, and the electrolyte consists essentially of solid solvated metal-lithium-halogen salt.