Title:
LITHIUM ION SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2007188878
Kind Code:
A
Abstract:
To provide a lithium ion secondary battery of which cycle property in the case of repeating intermittent cycles is more heightened than before.
A cathode activator particle contains lithium complex oxide, The lithium complex oxide is expressed by LixM1-yLyO2 (0.85≤x≤1.25, 0≤y≤0.50, M is at least one kind selected from a group composed of Ni and Co, L is at least one kind selected from a group composed of alkali earth element, transition metal element excluding Ni and Co, rare earth element, IIIb group element, and IVb group element). Oxide of molybdenum expressed by LiaMoOb (1≤a≤4, 1≤b≤6 ) exists on the surface of the activator particle.
Inventors:
NAGURA KENSUKE
Application Number:
JP2006337877A
Publication Date:
July 26, 2007
Filing Date:
December 15, 2006
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H01M4/02; H01M4/36; H01M4/485; H01M4/505; H01M4/525; H01M10/05; H01M10/052; H01M10/0569
Domestic Patent References:
| JP2002075367A | 2002-03-15 | |||
| JP2005251716A | 2005-09-15 |
Foreign References:
| WO2002041419A1 | 2002-05-23 |
Attorney, Agent or Firm:
Kazuo Ishii
Shinichi Kawasaki
Susumu Saito
Shinichi Kawasaki
Susumu Saito