Scott A Gustafson

US Patent:

6451480, Sep 17, 2002

Filed:

Aug 11, 2000

Appl. No.:

09/636686

Inventors:

Scott D. Gustafson - Jacksonville FL 32216
Loel R. Nelson - Jacksonville FL 32258
Joseph T. Antonucci - Jacksonville FL 32223

International Classification:

H01M 462

US Classification:

429217, 296235

Abstract:

A polyimide-based lithium ion battery is presented. The battery comprises at least one anode and at least one ionically conductive and electrochemically active cathode; or at least one ionically conductive and electrochemically active anode and a cathode; or at least one ionically conductive and electrochemically active anode and at least one ionically conductive and electrochemically active cathode. The source of the ionic conductivity and electronic activity. in either the anode, the cathode (or both) lies in a solid electrolyte polyimide binder comprising a lithium salt and a pre-imidized soluble, amorphous, thermoplastic polyimide powder. The batteries of the present invention do not require adhesives or interlayer bonding which may fail and they have at least one ionically conductive and electrochemically active electrode, enhancing the overall performance of the battery.

US Patent:

58886729, Mar 30, 1999

Filed:

Feb 9, 1998

Appl. No.:

/021027

Inventors:

Scott D. Gustafson - Jacksonville FL
Joseph T. Antonucci - Jacksonville FL

International Classification:

H01M 618
H01M 1040

US Classification:

429314

Abstract:

A battery having at least one anode, at least one cathode, and at least one electrolyte disposed between the anode and the cathode is presented. Each anode comprises an anode current collector, a first soluble, amorphous, thermoplastic polyimide; an electronic conductive filler; and an intercalation material. Each cathode comprises a cathode current collector; a second soluble, amorphous, thermoplastic polyimide; an electronic conductive filler; and a metal oxide. Lastly, each electrolyte comprises a third soluble, amorphous, thermoplastic polyimide and a lithium salt. The process for preparing the battery comprises the steps of preparing an anode slurry, a cathode slurry, and an electrolyte solution. Casting a film of the electrolyte solution to form an electrolyte layer. Coating the anode slurry and the cathode slurry on each respective current collector to form an anode and a cathode.