Title:
LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2017/126682
Kind Code:
A1
Abstract:
Provided is a lithium ion secondary battery having an excellent endurance and high output characteristics. A lithium ion secondary battery of the present invention is provided with a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte containing lithium ions. The negative electrode includes a negative electrode current collector and a negative electrode active material layer that includes a negative electrode active material and is disposed on one face or both faces of the negative electrode current collector. The positive electrode includes a positive electrode current collector and a positive electrode active material layer that includes a positive electrode active material and is disposed on one face or both faces of the positive electrode current collector. The positive electrode active material includes a transition metal oxide capable of occluding and releasing lithium ions. The positive electrode active material layer contains a specific lithium compound in the proportion of 3.8×10-9mol/g-3.0×10-2mol/g per unit mass of the positive electrode active material layer.
Inventors:
UMETSU KAZUTERU (JP)
MORITA HITOSHI (JP)
OKADA NOBUHIRO (JP)
KUSUZAKA KEITA (JP)
KAMIJO TAKESHI (JP)
MORITA HITOSHI (JP)
OKADA NOBUHIRO (JP)
KUSUZAKA KEITA (JP)
KAMIJO TAKESHI (JP)
Application Number:
PCT/JP2017/001995
Publication Date:
July 27, 2017
Filing Date:
January 20, 2017
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
H01M10/058; H01G11/06; H01G11/46; H01G11/86; H01M4/131; H01M4/62; H01M10/052; H01M10/0569
Foreign References:
| JP2005197174A | 2005-07-21 | |||
| JP2010232469A | 2010-10-14 |
Other References:
LIU ET AL.: "Surface phenomena of high energy Li (Ni1/3Co1/3Mn1/3) 02/graphite cells at high temperature and high cutoff voltages", J. POWER SOURCES, vol. 269, 2014, pages 920 - 926, XP029043945
NANDA ET AL.: "Local State-of-Charge Mapping of Lithium-Ion Battery Electrodes", ADV.FUNCT.MATER., vol. 21, 9 September 2011 (2011-09-09), pages 3282 - 3290, XP001571448
See also references of EP 3392954A4
NANDA ET AL.: "Local State-of-Charge Mapping of Lithium-Ion Battery Electrodes", ADV.FUNCT.MATER., vol. 21, 9 September 2011 (2011-09-09), pages 3282 - 3290, XP001571448
See also references of EP 3392954A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Download PDF:
Previous Patent: LIGHTING DEVICE AND CULTIVATION EQUIPMENT
Next Patent: TRANSMISSION TYPE THIN FILM SOLAR CELL
Next Patent: TRANSMISSION TYPE THIN FILM SOLAR CELL