Lithium secondary cell with high charge and discharge rate...

Details Lithium secondary cell with high charge and discharge rate... Lithium secondary cell with high charge and discharge rate...

2010-09-13

2011-12-20

Michener, Jennifer (Department: 1728)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S231800

Reexamination Certificate

active

08080338

ABSTRACT:
A high capacity, high charge rate lithium secondary cell includes a high capacity lithium-containing positive electrode in electronic contact with a positive electrode current collector, said current collector in electrical connection with an external circuit, a high capacity negative electrode in electronic contact with a negative electrode current collector, said current collector in electrical connection with an external circuit, a separator positioned between and in ionic contact with the cathode and the anode, and an electrolyte in ionic contact with the positive and negative electrodes, wherein the total area specific impedance for the cell and the relative area specific impedances for the positive and negative electrodes are such that, during charging at greater than or equal to 4 C, the negative electrode potential is above the potential of metallic lithium.

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