Ke C Gong

US Patent:

20140004403, Jan 2, 2014

Filed:

Jun 14, 2013

Appl. No.:

13/918452

Inventors:

Shuang GU - Newark DE, US
Ke GONG - Newark DE, US

Assignee:

University of Delaware - Newark DE

International Classification:

H01M 8/20

US Classification:

429107, 429105, 296231

Abstract:

A redox flow battery is provided. The redox flow battery involves multiple-membrane (at least one cation exchange membrane and at least one anion exchange membrane), multiple-electrolyte (one electrolyte in contact with the negative electrode, one electrolyte in contact with the positive electrode, and at least one electrolyte disposed between the two membranes) as the basic characteristic, such as a double-membrane, triple electrolyte (DMTE) configuration or a triple-membrane, quadruple electrolyte (TMQE) configuration. The cation exchange membrane is used to separate the negative or positive electrolyte and the middle electrolyte, and the anion exchange membrane is used to separate the middle electrolyte and the positive or negative electrolyte.

US Patent:

20140004402, Jan 2, 2014

Filed:

Jun 14, 2013

Appl. No.:

13/918444

Inventors:

Shuang Gu - Newark DE, US
Ke Gong - Newark DE, US

Assignee:

University of Delaware - Newark DE

International Classification:

H01M 8/20

US Classification:

429105

Abstract:

A novel design has been invented for redox flow batteries. Different from the single-membrane, double-electrolyte redox flow battery as a basic structure, the design of the present invention involves double-membrane (one cation exchange membrane and one anion exchange membrane), triple-electrolyte (one electrolyte in contact with the negative electrode, one electrolyte in contact with the positive electrode, and one electrolyte positioned between and in contact with the two membranes) as the basic characteristic. The cation exchange membrane is used to separate the negative or positive electrolyte and the middle electrolyte, and the anion exchange membrane is used to separate the middle electrolyte and the positive or negative electrolyte. This particular design physically isolates, but ionically connects, the negative electrolyte and positive electrolyte. The physical isolation offers a great freedom in choosing redox pairs in the negative electrolyte and positive electrolyte, making high voltage of redox flow batteries possible. The ionic conduction not only makes the design functional, but also drastically reduces the overall ionic crossover between negative electrolyte and positive one, leading to high columbic efficiency.

US Patent:

20210020972, Jan 21, 2021

Filed:

Jul 18, 2019

Appl. No.:

16/515426

Inventors:

- South Windsor CT, US
Ke GONG - Ellington CT, US

International Classification:

H01M 8/04276
H01M 8/0267
H01M 8/2465
H01M 8/0258

Abstract:

An illustrative example fuel cell assembly includes a plurality of fuel cells arranged in a stack including a first end fuel cell near a first end of the stack and a second end fuel cell near a second end of the stack. Each of the fuel cells includes a matrix containing an electrolyte, an anode and a cathode on opposite sides of the matrix, and respective flow fields adjacent the anode and the cathode. An electrolyte supply associated with the anode flow field of the first end fuel cell includes a porous material containing electrolyte. An electrolyte collector associated with the cathode flow field of the second end fuel cell includes a porous material configured to collect electrolyte from at least the cathode of the second end fuel cell.