Lithium ion rechargeable battery

Details Lithium ion rechargeable battery Lithium ion rechargeable battery

2006-10-06

2011-11-15

Lorengo, Jerry A (Department: 1731)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S231900, C429S218100, C429S209000

Reexamination Certificate

active

08057935

ABSTRACT:
A high power lithium-ion secondary battery having an increased capacity and capable of maintaining high discharge voltage and repeating charging/discharging high current. A lithium-ion secondary battery having an electrode group formed by laminating or winding a negative electrode layer and a positive electrode layer so as to interpose a separator made of synthetic resin, the negative electrode layer containing a material capable of intercalating/deintercalating lithium-ion, and the positive electrode layer including a lithium-containing metallic oxide; and a non-aqueous electrolyte containing lithium salt, where the electrode group is immersed. The positive electrode material unit contains a fluorinated lithium-containing metallic oxide as a main material, and the separator possesses a hydrophilic group. Further, the positive electrode material preferably contains a main material including LiNixCoyMnzO2, where 0.6≦x<1, 0<y≦0.2, 0<z≦0.2, and x+y+z=1.

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Office Action issued Apr. 19, 2011, Japanese Application No. 2005-319647, filed Nov. 2, 2005 (with English-language Translation).
Japanese Office Action dated Aug. 17, 2011 issued in the corresponding Japanese Patent Application No. 2005-319647, filed Nov. 2, 2005.

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