Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Reexamination Certificate
2006-12-11
2011-10-18
Apicella, Karie O'Neill (Department: 1726)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
C429S213000
Reexamination Certificate
active
08039148
ABSTRACT:
A non-aqueous electrolyte secondary battery of this invention includes a positive electrode including a positive electrode mixture, a negative electrode including a negative electrode mixture, and a non-aqueous electrolyte. The negative electrode mixture includes a material capable of absorbing and desorbing Li and a carbon material. The material capable of absorbing and desorbing Li includes at least one element selected from the group consisting of Si and Sn, and the amount of the carbon material is 3 to 60% by weight of the negative electrode mixture. At least one of the positive electrode, the negative electrode, and the non-aqueous electrolyte contains a lithium perfluoroalkylsulfonyl imide represented by the following general formula (1):in-line-formulae description="In-line Formulae" end="lead"?LiN(CmF2m+1SO2)(CnF2n+1SO2) (1)in-line-formulae description="In-line Formulae" end="tail"?where m and n each represent an integer of 1 to 5 and may be m=n. The ratio of the weight of the lithium perfluoroalkylsulfonyl imide to the weight of the carbon material is 10−3to 10.
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Apicella Karie O'Neill
McDermott Will & Emery LLP
Panasonic Corporation
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