Valence Technology, Inc.

Other

J Lee Morris

Jeremy Barker

Wade W Guindy

Frederik Flemming

Jeffrey L Swoyer

A method of fabricating electrochemical cells wherein precursors thereof can be stored for extended periods of time following extraction of plasticizer therefrom to form porous structures in the polymeric layer and the polymer binder materials of the anode and cathode is provided. Electrochemical cells are produced when the precursors are activated by the addition of an electrolyte solvent and salt.

Method of preparing electrochemical cells

Non-aqueous solid electrochemical cells with improved performance can be fabricated by employing intercalation based carbon anodes comprising a mixture of carbon particles having different morphologies and selected from platelet-type, microbead-type and/or fiber-type structures. The anodes exhibit good cohesion and adhesion characteristics. When employed in an electrochemical cell, the anode can attain a specific electrode capacity of at least 300 mAh/g. The electrochemical cell has a cycle life of greater than 1000 cycles, and has a first cycle capacity loss of only about 5-15%.

Lithium ion electrochemical cell

Electrode sections, such as anode and cathode sections, of a battery cell include current collectors with exposed portions. The exposed portions contain slits which form tabs. These tabs can be spot welded together to form connections between the electrode sections.

Growing community of inventors

Henderson, NV, United States of America

J Lee Morris