Lithium ion electrochemical cell

Details Lithium ion electrochemical cell Lithium ion electrochemical cell

1996-06-13

1998-04-28

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429223, 429224, 429 60, H01M 1040, H01M 450, H01M 452

Patent

active

057442649

ABSTRACT:
Non-aqueous solid electrochemical cells with improved performance can be fabricated by employing intercalation based carbon anodes comprising graphitized microbead carbon particles. When employed in a lithium electrochemical cell sufficient cathode material is employed to intercalate the anode active material to attain a specific electrode capacity of greater than about 372 mAh/g. The electrochemical cell has a cycle life of greater than 200 cycles, and has a first cycle capacity loss of only about 10% to 15%.

REFERENCES:
patent: 5344724 (1994-09-01), Ozaki et al.
patent: 5352548 (1994-10-01), Fujimoto et al.
J. Electrochem. Soc., vol. 142, No. 9, Sep. 1995, Charge-Discharge Mechanism of Graphitized Mesocarbon Microbeads, pp. 3048-3051.
J. Electrochem. Soc., vol. 142, No. 2, Feb. 1995, Structural and Kinetic Characterization of Lithium Intercalation into Carbon Anodes for Secondary Lithium Batteries, pp. 371-378.
J. Electrochem. Soc., vol. 142, No. 4, Apr. 1995, Charge-Discharge Characterstics of the Mesocarbon Microbeads Heat-Treated at Different Temperatures, pp. 1041-1046.
Journal of Power Sources, 51 (1994), Lithium-Ion Rechargeable Batteries, pp. 79-104 No Month.

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