Altus Corporation

John C Hall

On-Kok Chang

Jeffrey Phillips

Lenard F Silvester

Lenard F Sylvester

An electrochemical cell and method for improving voltage regulation of said cell. The cell employs lithium as an anode, lithium tetrachloroaluminate as an electrolyte, sulfur dioxide as a solvent, and high surface area carbon black containing cupric chloride as a cathode. Oxidizing agents such as halides and oxyhalides are employed to improve voltage regulation.

Electrolyte additives to improve voltage regulation in the

A rechargeable non-aqueous electrochemical cell. The cell has a positive terminal, a negative terminal, a cathode collector attached to the positive terminal and an anode of alkaline metal connected to the negative terminal. The cell further possesses a non-aqueous electrolyte solution in contact with the cathode and anode. The cathode collector is composed of a chrome foil plated upon a core of nickel.

Positive current collector for lithium secondary system

A rechargeable electrochemical cell which resists venting in an over-discharge condition. A first microporous membrane is provided as a separator between the cell's anode and cathode, which allows for the passage of cell electrolyte, but inhibits the passage of metal dendrites. A tab extends from the anode to the cell casing and between the tab and inner wall of the cell casing is provided a second microporous membrane characterized as being less resistant to the passage of alkaline metal dendrites than the first microporous membrane.

Overdischarge protection for rechargeable cells

A rechargeable electrochemical cell having a cell casing housing a stack of spirally wound elements which include an alkaline metal anode, a cathode or cathode collector and a separator. A method is provided for preventing alkaline metal dendrites from forming on any surface within the cell casing and external to the stack of spirally wound elements.

Cell design for spirally wound rechargeable alkaline metal cell

An electrochemical cell and method for improving voltage regulation of said cell. The cell employs lithium as an anode, lithium tetrachloroaluminate as an electrolyte, sulfur dioxide as a solvent, and high surface area carbon black containing cupric chloride as a cathode. A lithium halide, such as LiCl or LiBr, is employed to improve voltage regulation.

Growing community of inventors

San Jose, CA, United States of America

John C Hall