Title:
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2018/123526
Kind Code:
A1
Abstract:
According to the present invention, a nonaqueous electrolyte secondary battery which uses a lithium titanium composite oxide as a negative electrode active material is configured to use a first positive electrode active material that is a Co-containing lithium transition metal oxide and has a volume per mass of 8 mm3/g or more with respect to pores having a pore diameter of 100 nm or less and a second positive electrode active material that has a volume per mass of 5 mm3/g or less with respect to pores having a pore diameter of 100 nm or less. In addition, the volume per mass of the pores having a pore diameter of 100 nm or less in the first positive electrode active material is set to 4 times or more the volume per mass of the pores having a pore diameter of 100 nm or less in the second positive electrode active material; and the content of the first positive electrode active material is set to 30% by mass or less of the total amount of the first positive electrode active material and the second positive electrode active material. In addition, this nonaqueous electrolyte secondary battery uses a nonaqueous electrolyte that contains a lithium salt which comprises an oxalato complex as an anion.
Inventors:
MORIKAWA YUKI
BABA YASUNORI
KO TAKASHI
NIINA FUMIHARU
YANAGIDA KATSUNORI
BABA YASUNORI
KO TAKASHI
NIINA FUMIHARU
YANAGIDA KATSUNORI
Application Number:
PCT/JP2017/044301
Publication Date:
July 05, 2018
Filing Date:
December 11, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M10/052; H01M4/13; H01M4/36; H01M4/485; H01M4/505; H01M4/525; H01M4/587; H01M4/62; H01M10/0567
Domestic Patent References:
| WO2012111813A1 | 2012-08-23 |
Foreign References:
| JP2007173150A | 2007-07-05 | |||
| JP2010050079A | 2010-03-04 | |||
| JPH10162860A | 1998-06-19 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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