Non-aqueous electrolyte secondary battery

Details Non-aqueous electrolyte secondary battery Non-aqueous electrolyte secondary battery

2007-01-26

2010-06-15

Weiner, Laura S (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S218100, C429S221000, C429S223000, C429S231500, C429S232000, C429S231950, C427S058000, C427S122000

Reexamination Certificate

active

07736808

ABSTRACT:
A non-aqueous electrolyte secondary battery of the present invention includes a positive electrode including a positive electrode material mixture, a negative electrode including a negative electrode material mixture, and a non-aqueous electrolyte including a non-aqueous solvent and a first lithium salt and a second lithium salt dissolved in the non-aqueous solvent. The negative electrode material mixture includes a material capable of absorbing and desorbing lithium ions, and carbon nanofibers. The material capable of absorbing and desorbing lithium ions has a ratio A/B of a volume A in a charged state to a volume B in a discharged state of 1.2 or more. The first lithium salt is at least one selected from the group consisting of LiBF4and LiB(C2O4)2. The second lithium salt is a salt other than the first lithium salt. The first lithium salt is included in the non-aqueous electrolyte at a weight ratio of 10−4or more relative to the carbon nanofibers. The first lithium salt included in the non-aqueous electrolyte has a concentration of 0.05 mol/dm3or less.

REFERENCES:
patent: 2007/0099081 (2007-05-01), Matsuda et al.
patent: 2008/0160409 (2008-07-01), Ishida et al.
patent: 2002-367602 (2002-12-01), None
patent: 2002-373653 (2002-12-01), None
patent: 2003-45488 (2003-02-01), None
patent: 2004-296186 (2004-10-01), None
patent: 2004-349056 (2004-12-01), None
patent: 2005-79057 (2005-03-01), None
patent: 2005-353758 (2005-12-01), None
Sakaguchi, H., “Tanso no Tsugi o Ukagau Fukyoku Zairyo ‘Kinzokukan Kagobutsu’”, Chemistry, Apr. 1, 2000, p. 60-61, vol. 55, No. 4.
Shu, J., et al., “Cage-like carbon nanotubes/Si composite as anode material for lithium ion batteries,” Electrochemistry Communications, 2006, p. 51-54, vol. 8, Elsevier B.V.

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