Title:
LITHIUM-ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2015/056412
Kind Code:
A1
Abstract:
The positive-electrode active material of this lithium-ion secondary battery comprises a first active material and a second active material that has a lower operating potential than the first active material and a higher operating potential than a negative-electrode active material. The first active material comprises a lithium/transition-metal oxide that contains lithium and at least one of the transition metals nickel, cobalt, and manganese. The second active material comprises a polyanionic material that contains both lithium and a transition metal. This lithium-ion secondary battery is designed such that discharging thereof is stopped at the operating potential of the first active material.
Inventors:
KOJIMA AKIRA (JP)
NIWA JUNICHI (JP)
SHIMO TOSHIHISA (JP)
IKEUCHI YUTA (JP)
KOJIMA TOSHIKATSU (JP)
SAKAI TETSUO (JP)
NIWA JUNICHI (JP)
SHIMO TOSHIHISA (JP)
IKEUCHI YUTA (JP)
KOJIMA TOSHIKATSU (JP)
SAKAI TETSUO (JP)
Application Number:
PCT/JP2014/004971
Publication Date:
April 23, 2015
Filing Date:
September 29, 2014
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
NAT INST OF ADVANCED IND SCIEN (JP)
NAT INST OF ADVANCED IND SCIEN (JP)
International Classes:
H01M10/052; H01M4/36; H01M4/38; H01M4/48; H01M4/505; H01M4/525; H01M4/58; H01M10/0566
Foreign References:
| JP2011238490A | 2011-11-24 | |||
| JP2010257592A | 2010-11-11 | |||
| JP2013089523A | 2013-05-13 | |||
| JP2013178935A | 2013-09-09 |
Attorney, Agent or Firm:
KYORITSU INTERNATIONAL (JP)
Patent business corporation Joint establishment (JP)
Patent business corporation Joint establishment (JP)
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