Material for positive electrode and secondary battery

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C429S224000, C429S231100, C429S231300

Reexamination Certificate

active

06884543

ABSTRACT:
Disclosed is a non-aqueous electrolyte secondary battery having an excellent preservation characteristic at a high temperature and charging/discharging cycle characteristic. A rolled body in which a strip-shape positive electrode and negative electrode are rolled with a separator in-between is provided inside a battery can. The positive electrode contains LixMn2-yMayO4(where, Ma is at least one element selected from the group consisting of metal elements other than Mn, and B) and LiNi1-zMbzO2(where, Mb is at least one element selected from the group consisting of metal elements other than Ni, and B). By replacing part of Mn and Ni with other elements, the crystal structure can be stabilized. Thereby, the capacity retention ratio after preservation at a high temperature, and a heavy load discharging power under a high electric potential cutoff can be improved. The mean particle size of particles of the above-mentioned oxides are preferable to be 30 μm and below so that an excellent charging/discharging cycle characteristic can be obtained.

REFERENCES:
patent: 5429890 (1995-07-01), Pynenburg et al.
patent: 5683834 (1997-11-01), Fujimoto et al.
patent: 5952125 (1999-09-01), Bi et al.
patent: 6030726 (2000-02-01), Takeuchi et al.
patent: 6255020 (2001-07-01), Yamashita et al.
patent: WO 9953556 (1999-10-01), None
patent: WO 9959214 (1999-11-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Material for positive electrode and 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 Material for positive electrode and secondary battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Material for positive electrode and secondary battery will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3422793

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.