Title:
非水電解液二次電池
Document Type and Number:
Japanese Patent JP5105341
Kind Code:
B2
Abstract:
A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte, wherein the positive electrode comprises a positive electrode active material comprising a particle of a composite oxide represented by a general formula: LixMe1-y-zMyLzO2. In the general formula, the element Me is at least one transition metal element except Ti, Mn, Y and Zr, the element M is at least one selected from the group consisting of Mg, Ti, Mn and Zn, and the element L is at least one selected from the group consisting of Al, Ca, Ba, Sr, Y and Zr, and 1≰x≰1.05, 0.005≰y≰0.1 (with a proviso that 0.005≰y≰0.5 is satisfied in the case of the element M being Mn) and 0≰z≰0.05 are satisfied. The separator includes a plurality of laminated monolayer films, the plurality of monolayer films each have a microporous structure, and a positive electrode-side monolayer film selected from the plurality of monolayer films which faces the positive electrode is made of polypropylene.
Inventors:
Takashi Takeuchi
Akira Nagasaki
Koji Yoshizawa
Akira Nagasaki
Koji Yoshizawa
Application Number:
JP2005515431A
Publication Date:
December 26, 2012
Filing Date:
November 10, 2004
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01M4/525; C01G45/00; H01M4/505; H01M4/52; H01M10/052; H01M10/0525; H01M10/0566; H01M10/36; H01M50/406; H01M50/417; H01M50/449; H01M50/489; H01M4/133; H01M4/48; H01M4/485; H01M4/50; H01M10/0587; H01M10/44
Domestic Patent References:
| JP2003086154A | 2003-03-20 | |||
| JP2002367587A | 2002-12-20 | |||
| JP2002145623A | 2002-05-22 | |||
| JP2003178759A | 2003-06-27 | |||
| JP2003123724A | 2003-04-25 | |||
| JP2003173776A | 2003-06-20 | |||
| JP2002319386A | 2002-10-31 | |||
| JP2002279956A | 2002-09-27 | |||
| JPH09259857A | 1997-10-03 | |||
| JP2001291518A | 2001-10-19 |
Foreign References:
| WO2002086993A1 | 2002-10-31 |
Attorney, Agent or Firm:
Kazuo Ishii
Shinichi Kawasaki
Shinichi Kawasaki