(19)
(11) EP 3 522 284 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
25.09.2019 Bulletin 2019/39

(43) Date of publication:
07.08.2019 Bulletin 2019/32

(21) Application number: 17856152.8

(22) Date of filing: 26.09.2017
(51) International Patent Classification (IPC): 
H01M 10/0525(2010.01)
H01M 4/36(2006.01)
H01M 4/505(2010.01)
 H01M 4/131(2010.01)
H01M 4/485(2010.01)
H01M 4/525(2010.01)
(86) International application number:
PCT/JP2017/034791
(87) International publication number:
WO 2018/062202 (05.04.2018 Gazette 2018/14)
(84) Designated Contracting States:
AL 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 RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(30) Priority: 29.09.2016 JP 2016191759

(71) Applicants:
  • KABUSHIKI KAISHA TOSHIBA
    Minato-ku Tokyo 105-8001 (JP)
  • Toshiba Infrastructure Systems & Solutions Corporation
    Kawasaki-shi, Kanagawa 212-0013 (JP)

(72) Inventors:
  • HARA, Ryo
    Tokyo 105-8001 (JP)
  • YAMAMOTO, Dai
    Tokyo 105-8001 (JP)
  • NAMBA, Kazuhiro
    Tokyo 105-8001 (JP)

(74) Representative: Hoffmann Eitle 
Patent- und Rechtsanwälte PartmbB Arabellastraße 30
81925 München
81925 München (DE)

   


(54) NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK


(57) According to one embodiment, provided is a nonaqueous electrolyte battery including a positive electrode 3, a negative electrode 4, and a nonaqueous electrolyte. The positive electrode 3 includes a spinel type lithium-manganese composite oxide and a lithium cobalt oxide as a positive electrode active material, the spinel type lithium-manganese composite oxide and the lithium cobalt oxide satisfying formula (1): 0.01 ≤ B/(A + B) < 0.05. The negative electrode 4 includes a titanium-containing oxide. The nonaqueous electrolyte battery satisfies formula (2): 0.3 ≤ C/D ≤ 0.8. A is a weight ratio (wt%) of the spinel type lithium-manganese composite oxide in the positive electrode active material, B is a weight ratio (wt%) of the lithium cobalt oxide in the positive electrode active material, C is a pore specific surface area (m2/g) of the positive electrode according to mercury porosimetry, and D is a pore specific surface area (m2/g) of the negative electrode according to mercury porosimetry.