Jeffrey Lee Phillips

US Patent:

RE40727, Jun 9, 2009

Filed:

Nov 9, 2006

Appl. No.:

11/598153

Inventors:

Jeffrey Phillips - La Jolla CA, US

Assignee:

PowerGenix Systems, Inc. - Yukon

International Classification:

H01M 4/48

US Classification:

429231, 429229, 429223, 429232, 429206, 429207, 429209

Abstract:

A nickel zinc alkaline cell has a zinc oxide negative electrode supported on a conductive substrate, an alkaline electrolyte, and a positive electrode having nickel hydroxide paste supported on a conductive substrate. The negative zinc oxide electrode comprises 85% to 95% zinc oxide powder, 1% to 10% bismuth oxide, 1% to 2% of a binder, and 0. 05% to 5% by weight of a fluoride salt chosen from the group consisting of: sodium, potassium, rubidium, caesium, lithium, and mixtures thereof. Typically, the fluoride salt is potassium fluoride, in the amount of 0. 5% by weight of the zinc oxide.

US Patent:

7550230, Jun 23, 2009

Filed:

Feb 1, 2006

Appl. No.:

11/346861

Inventors:

Jeffrey Phillips - La Jolla CA, US
Samaresh Mohanta - San Diego CA, US

Assignee:

PowerGenix Systems, Inc. - San Diego CA

International Classification:

H01M 6/04

US Classification:

429206, 429229, 429231, 429223, 429207, 429347

Abstract:

Electrodes and electrolytes for nickel-zinc secondary battery cells possess compositions that limit dendrite formation and other forms of material redistribution in the zinc electrode. In addition, the electrolytes may possess one or more of the following characteristics: good performance at low temperatures, long cycle life, low impedance and suitability for high rate applications.

US Patent:

7816030, Oct 19, 2010

Filed:

Jun 1, 2009

Appl. No.:

12/476166

Inventors:

Jeffrey Phillips - La Jolla CA, US
Samaresh Mohanta - San Diego CA, US

Assignee:

Powergenix Systems, Inc. - San Diego CA

International Classification:

H01M 6/04

US Classification:

429206, 429229, 429231, 429223, 429207, 429347

Abstract:

Electrodes and electrolytes for nickel-zinc secondary battery cells possess compositions that limit dendrite formation and other forms of material redistribution in the zinc electrode. In addition, the electrolytes may possess one or more of the following characteristics: good performance at low temperatures, long cycle life, low impedance and suitability for high rate applications.

US Patent:

7931988, Apr 26, 2011

Filed:

Oct 5, 2007

Appl. No.:

11/868337

Inventors:

Feng Feng - San Diego CA, US
Jeffrey Phillips - La Jolla CA, US
Samaresh Mohanta - San Diego CA, US
Jeff Barton - San Diego CA, US
Zeiad M. Muntasser - San Diego CA, US

Assignee:

Powergenix Systems, Inc. - San Diego CA

International Classification:

H01M 4/66
H01M 4/42
H01M 4/48
C25D 3/22
C25D 3/30

US Classification:

429245, 429231, 429229, 205300, 205305

Abstract:

An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 μIn maximizes formation of an intermetallic compound CuSn that helps to suppress the copper diffusion from under plating layer to the surface and eliminates formation of an intermetallic compound CuSnduring baking to provide adequate corrosion resistance during battery operation.

US Patent:

8048558, Nov 1, 2011

Filed:

Mar 25, 2009

Appl. No.:

12/411282

Inventors:

Jeffrey Phillips - La Jolla CA, US
Franz Josef Kruger - Frankenthal, DE
Samaresh Mohanta - San Diego CA, US
Sean Clinton - San Diego CA, US
Ernest M. Rimanosky - San Diego CA, US
Jason Zhao - Suisun City CA, US
Cecilia Maske - San Diego CA, US
Zheng Gang Fan - Shenzhen, CN

Assignee:

PowerGenix Systems, Inc. - San Diego CA

International Classification:

H01M 2/02
H01M 2/00
H01M 6/04
H01M 2/12

US Classification:

429166, 429164, 429163, 429178, 429 53, 429188

Abstract:

A nickel-zinc battery cell is formed with a negative can, a positive cap, and a jelly roll of electrochemically active positive and negative materials within. The inner surface of the can is protected with an anticorrosive material that may be coated or plated onto the can. Good electrical contact between the jelly roll and the cap is achieved through folding the nickel substrate over to contact a positive current collection disk.

US Patent:

8048566, Nov 1, 2011

Filed:

Apr 29, 2009

Appl. No.:

12/432639

Inventors:

Mingming Geng - San Diego CA, US
Jeffrey Phillips - La Jolla CA, US
Samaresh Mohanta - San Diego CA, US

Assignee:

Powergenix Systems, Inc. - San Diego CA

International Classification:

H01M 4/13
H01M 4/42
H01M 4/48
H01M 4/32
H01M 10/26

US Classification:

429231, 429229, 429223, 429206

Abstract:

The nickel hydroxide particles for a nickel hydroxide electrode may be treated using an alkaline solution of a strong oxidizing agent such as sodium or potassium persulfate to modify the surface nickel hydroxide structure. The resulting modified surface structure has been found to impart various benefits to electrodes formed from the nickel hydroxide. It is believed that the oxidation of cobalt compounds at the surface of the nickel hydroxide particles results in a highly conductive cobalt compound that plays an important role in the high reliability, high stability and high capacity utilization of nickel electrodes as described herein.

US Patent:

8182946, May 22, 2012

Filed:

Mar 23, 2011

Appl. No.:

13/069879

Inventors:

Feng Feng - San Diego CA, US
Jeffrey Phillips - La Jolla CA, US
Samaresh Mohanta - San Diego CA, US
Jeff Barton - San Diego CA, US
Zeiad M. Muntasser - San Diego CA, US

Assignee:

Powergenix Systems, Inc. - La Jolla CA

International Classification:

H01M 4/66
H01M 4/42
H01M 4/48
C23C 28/00
C25D 3/22
C25D 3/30

US Classification:

429245, 429231, 429229, 205191, 205300, 205305

Abstract:

An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 μIn maximizes formation of an intermetallic compound CuSn that helps to suppress the copper diffusion from under plating layer to the surface and eliminates formation of an intermetallic compound CuSnduring baking to provide adequate corrosion resistance during battery operation.

US Patent:

8372542, Feb 12, 2013

Filed:

Apr 20, 2012

Appl. No.:

13/452629

Inventors:

Feng Feng - San Diego CA, US
Jeffrey Phillips - La Jolla CA, US
Samaresh Mohanta - San Diego CA, US
Jeff Barton - San Diego CA, US
Zeiad M. Muntasser - San Diego CA, US

Assignee:

PowerGenix Systems, Inc. - La Jolla CA

International Classification:

H01M 4/66
H01M 4/42
H01M 4/48
C23C 28/00
C25D 3/22
C25D 3/30

US Classification:

429245, 429231, 429229, 205191, 205300, 205305

Abstract:

An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 μIn maximizes formation of an intermetallic compound CuSn that helps to suppress the copper diffusion from under plating layer to the surface and eliminates formation of an intermetallic compound CuSnduring baking to provide adequate corrosion resistance during battery operation.