Title:
An electrode, a lithium secondary battery, a battery pack, electric vehicles, an electric power storage system, a power tool, and electronic equipment
Document Type and Number:
Japanese Patent JP6135253
Kind Code:
B2
Abstract:
(A) A cathode active material of a cathode includes a lithium phosphate compound represented by LiaM1bPO4 (M is Fe and the like, 0≰a≰2, b≰1). (B) Fine pore distribution of the cathode measured by a mercury intrusion method indicates a peak P1 in a range where a pore diameter is equal to or more than about 0.01 micrometers and less than about 0.15 micrometers, and indicates a peak P2 in a range where the pore diameter is from about 0.15 micrometers to about 0.9 micrometers both inclusive. (C) A ratio I2/I1 between intensity I1 of the peak P1 and intensity I2 of the peak P2 is from about 0.5 to about 20 both inclusive. (D) Porosity of the cathode is from about 30 percent to about 50 percent both inclusive.
Inventors:
Tadashi Matsushita
Takaaki Matsui
Takehiko Ishii
Takaaki Matsui
Takehiko Ishii
Application Number:
JP2013076641A
Publication Date:
May 31, 2017
Filing Date:
April 02, 2013
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H01M4/136; H01M4/36; H01M4/58; H01M10/052; H01M10/0566
Domestic Patent References:
| JP2010225366A | ||||
| JP2009152188A | ||||
| JP2010015904A |
Foreign References:
| WO2012063369A1 | ||||
| WO2011089702A1 |
Attorney, Agent or Firm:
Patent Business Corporation Tsubasa International Patent Office
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