Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Reexamination Certificate
2007-09-25
2007-09-25
Maples, John S. (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
C429S326000, C429S331000
Reexamination Certificate
active
10803036
ABSTRACT:
Objects of the present invention is to provide a carbon material having a superior reversibility in lithium intercalation-deintercalation reaction, and a non-aqueous secondary battery using the carbon material as an active material for a negative electrode, which has a high energy density and an excellent rapid charging and discharging characteristics.Graphite powder having a maximum particle diameter of less than 100 μm and an existing fraction of rhombohedral structure in the crystalline structure of less than 20% is used as an active material for the negative electrode of the non-aqueous secondary battery. The graphite powder can be obtained by pulverizing raw graphite with a jet mill, and subsequently treating the powder at a temperature equal to or higher than 900° C.
REFERENCES:
patent: 4013760 (1977-03-01), Huschka et al.
patent: 4221773 (1980-09-01), Tsukagashi et al.
patent: 5340670 (1994-08-01), Takami et al.
patent: 5554462 (1996-09-01), Flandrois et al.
patent: 5672327 (1997-09-01), Bennett et al.
patent: 6447955 (2002-09-01), Takahashi et al.
patent: 0573266 (1993-12-01), None
patent: 0660432 (1995-06-01), None
patent: 1087046 (1967-10-01), None
patent: 62-23433 (1987-05-01), None
patent: 5-121066 (1993-05-01), None
patent: 6-168724 (1994-06-01), None
patent: 6-168725 (1994-06-01), None
patent: 6-239607 (1994-08-01), None
patent: 6-318459 (1994-11-01), None
H. Abe, et al. “Performance of Lithium Ion Rechargeable Batteries Using Graphite Wiskers as the Anode Material”, The 34thBattery Symposium in Japan, p. 7-8, Hiroshima, Nov. 22-24, 1993.
K. Tatsumi, et al., “A Novel Modification in the Preparing Process of Graphite Wiskers for the Anode Performance of Lithium Ion Secondary Batteries”, The 34thBattery Symposium in Japan, p. 97-98, Hiroshima, Nov. 22-24, 1993.
K. Tatsumi, et al. “Anode Performance of Vapor-Grown Carbon Fibers in Secondary Lithium-Ion Batteries”, J. Electrochem. Soc., vol. 142, No. 4. 1090-1096, Apr. 1995.
Honbo Hidetoshi
Horiba Tatsuo
Ishii Yoshito
Momose Hideto
Muranaka Yasushi
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Maples John S.
LandOfFree
Non-aqueous secondary battery having negative electrode... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-aqueous secondary battery having negative electrode..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-aqueous secondary battery having negative electrode... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3760470