Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Reexamination Certificate
2011-07-19
2011-07-19
Maples, John S (Department: 1728)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
C429S231500, C423S594800
Reexamination Certificate
active
07981545
ABSTRACT:
A negative active material for a rechargeable lithium battery includes a lithium vanadium composite oxide represented by LixMyVzO2+d, where:in-line-formulae description="In-line Formulae" end="lead"?0.1≦x≦2.5, 0≦y≦0.5, 0.5≦z≦1.5, 0≦d≦0.5,in-line-formulae description="In-line Formulae" end="tail"?and M is selected from the group consisting of Al, Cr, Mo, Ti, W, Zr, and combinations thereof) and a compound attached to the surface of the vanadium composite oxide. The compound includes an element selected from the group consisting of Groups 2 to 15 elements and combinations thereof. The negative active material can provide good energy density per volume and high-capacity, to provide a battery having good cycle-life and safety.
REFERENCES:
patent: 2005/0079417 (2005-04-01), Kim et al.
patent: 2008/0038635 (2008-02-01), Sheem et al.
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Kim Sung-soo
Takamuku Akira
Bushnell , Esq. Robert E.
Maples John S
Samsung SDI & Co., Ltd.
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