Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Reexamination Certificate
2008-07-10
2011-10-11
Lee, Cynthia (Department: 1726)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
C429S209000
Reexamination Certificate
active
08034487
ABSTRACT:
An electrode for a non-aqueous electrolyte battery includes a current collector formed of aluminum foil or aluminum alloy foil, and an active material-containing layer formed on a surface of the current collector and containing an active material, a conductive agent and a binder. The conductive agent comprises a carbon particle group containing first carbon particles each exhibiting an aspect ratio of more than one. A portion of each of the first carbon particles is embedded into the current collector to the depth corresponding to 20 to 50% of the thickness of the current collector. A major axis of each of the first carbon particles has a length of 1.05 to 1.50 times as large as the thickness of the active material-containing layer.
REFERENCES:
patent: 6406817 (2002-06-01), Wariishi et al.
patent: 2005/0221188 (2005-10-01), Takami et al.
patent: 2000-277393 (2000-10-01), None
patent: 2002-83601 (2002-03-01), None
patent: 2006-286427 (2006-10-01), None
Office Action issued Sep. 18, 2009, in Chinese Patent Application No. 200810136076.1 (with English translation).
Inagaki Hiroki
Morishima Hideaki
Saruwatari Hidesato
Takami Norio
Kabushiki Kaisha Toshiba
Lee Cynthia
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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