(19)
(11) EP 2 187 467 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
08.02.2012 Bulletin 2012/06

(45) Mention of the grant of the patent:
08.06.2011 Bulletin 2011/23

(21) Application number: 09014302.5

(22) Date of filing: 16.11.2009
(51) International Patent Classification (IPC): 
H01M 4/58(2010.01)
H01M 4/136(2010.01)
 H01M 10/052(2010.01)

(54)

Cathode active material, cathode, and nonaqueous secondary battery

Aktives Kathodenmaterial, Kathode und nichtwässerige Sekundärbatterie

Matériau actif à cathode, cathode, et batterie secondaire non aqueuse

(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

(30) Priority: 18.11.2008 JP 2008294707

(43) Date of publication of application:
19.05.2010 Bulletin 2010/20

(73) Proprietor: Sharp Kabushiki Kaisha
Osaka-shi, Osaka 545-8522 (JP)

(72) Inventors:
  • Ohira, Koji
    Osaka-shi Osaka 545-8522 (JP)
  • Nishijima, Motoaki
    Osaka-shi Osaka 545-8522 (JP)
  • Tanaka, Isao
    Kyoto-shi Kyoto 606-8501 (JP)
  • Koyama, Yukinori
    Kyoto-shi Kyoto 606-8501 (JP)

(74) Representative: Müller - Hoffmann & Partner 
Patentanwälte Innere Wiener Strasse 17
81667 München
81667 München (DE)


(56) References cited: : 
EP-A- 1 246 290
US-A1- 2006 014 079
 JP-A- 2004 178 835
   
  • XIE H ET AL: "Physical and electrochemical properties of mix-doped lithium iron phosphate as cathode material for lithium ion battery" ELECTROCHIMICA ACTA, ELSEVIER SCIENCE PUBLISHERS, BARKING, GB, vol. 51, no. 10, 1 February 2006 (2006-02-01), pages 2063-2067, XP025167856 ISSN: 0013-4686 [retrieved on 2006-02-01]
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).