Nonaqueous electrolyte secondary battery

Details Nonaqueous electrolyte secondary battery Nonaqueous electrolyte secondary battery

2011-01-11

2011-01-11

Mayes, Melvin C (Department: 1732)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S231800, C429S231950

Reexamination Certificate

active

07867654

ABSTRACT:
The nonaqueous electrolyte secondary battery according to one aspect of the present invention includes a lithium-transition metal compound as a positive electrode active material that is capable of intercalating and deintercalating a lithium ion and is represented by Li1+aNixCOyMzO2(wherein M is at least one element selected from Mn, Al, Ti, Zr, Nb, B, Mg and Mo; and 0≦a≦0.3, 0.1≦x≦1, 0≦y≦0.5, 0≦z≦0.9, a+x+y+z=1), and carbon as a negative electrode active material that is capable of intercalating and deintercalating a lithium ion and is added with a powder of a compound having an imide bond. In the nonaqueous electrolyte secondary battery of the present invention, by incorporating a compound having an imide bond, the initial efficiency of the negative electrode is lowered, so that at a low state of charge of 20% or less, an increasing rate of the IV resistance value becomes small. With such a constitution, a nonaqueous electrolyte secondary battery in which a change in the IV resistance value at a low state of charge is suppressed, which is excellent in output properties and regeneration properties, and which is suitable for an electric vehicle (EV) and a hybrid electric vehicle (HEV), for example, can be provided.

REFERENCES:
patent: 6451480 (2002-09-01), Gustafson et al.
patent: 2002/0001752 (2002-01-01), Yao et al.
patent: 06-163031 (1994-06-01), None
patent: 2000-182621 (2000-06-01), None
patent: 2000-195553 (2000-07-01), None
patent: 2001-093583 (2001-04-01), None
patent: WO 2004066422 (2004-08-01), None

Affiliated with

Also associated with

Rating

Nonaqueous electrolyte secondary battery does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nonaqueous electrolyte secondary battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonaqueous electrolyte secondary battery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2727570