Lithium secondary battery

Details Lithium secondary battery Lithium secondary battery

1996-11-22

1998-05-19

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429218, 423445R, 423448, H01M 1040

Patent

active

057533873

ABSTRACT:
This invention provides a lithium secondary battery comprising a positive electrode, a negative electrode comprising a carbonaceous material which is capable of absorbing and desorbing lithium ions, and a nonaqueous electrolyte, wherein the carbonaceous material has a region of amorphous carbon structure and a region of graphite structure, and the carbonaceous material has a true density of 1.8 g/cm.sup.3 or more and a peak in powder X-ray diffraction which corresponds to not more than 0.340 nm in an interplanar spacing d.sub.002 derived from (002) reflection.

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patent: 5312611 (1994-05-01), Takami et al.
patent: 5340670 (1994-08-01), Takami et al.
J. S. Xue, et al. "Dramatic Effects of Oxidation on Lithium Insertion in Carbons Made from Epoxy Resins", J. Electrochem. Soc., (pp. 3668-3677), vol. 142, No. 11, Nov. 1995.
Tao Zheng, et al. "Lithium Insertion in High Capacity Carbonaceous Materials", J. Electrochem. Soc., (pp. 2581-2590), vol. 142, No. 8, Aug. 1995.
Aisaku Nagai, et al. "Lithium Storage Mechanism in Nongraphitizable Carbon", Mat. Res. Soc. Symp. Proc., (pp. 339-343), vol. 393, Apr. 17-20, 1995.
Akihiro Mabuchi, et al., "Charge-Discharge Characteristics of the Mesocarbon Microbeads Heat-Treated at Different Temperatures", J. Electrochem. Soc., (pp. 1041-1046), vol. 142, No. 4, Apr. 1995.
A.M. Wilson, et al. "Lithium Insertion in Carbons Containing Nanodispersed Silicon", J. Electrochem. Soc., (pp. 326-332), vol. 142, No. 2, Feb. 1995.

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