Title:
LITHIUM ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2017/082083
Kind Code:
A1
Abstract:
A lithium ion secondary battery which comprises: a positive electrode that contains, as a positive electrode active material, a lithium nickel composite oxide having a layered rock salt structure; a negative electrode that contains a negative electrode active material which is capable of absorbing and desorbing lithium ions; an electrolyte; and an outer package. The lithium nickel composite oxide is represented by composition formula LiNixM1-xO2 (wherein x represents a number of 0.75-1 and M represents at least one metal element other than Ni occupying a nickel site), and has, when fully charged, a crystal phase having an interplanar spacing d(003) that is larger than the interplanar spacing d(003) at the time of complete discharge.
Inventors:
YAMAMOTO YOSHIMASA (JP)
Application Number:
PCT/JP2016/082080
Publication Date:
May 18, 2017
Filing Date:
October 28, 2016
Export Citation:
Assignee:
NEC ENERGY DEVICES LTD (JP)
International Classes:
H01M4/525; H01M4/505; H01M50/443
Domestic Patent References:
| WO2012124244A1 | 2012-09-20 | |||
| WO2015156400A1 | 2015-10-15 |
Foreign References:
| JPH09270260A | 1997-10-14 | |||
| JP2000294240A | 2000-10-20 |
Other References:
YAMADA SHUJI: "Synthesis and properties of LiNiO2 as cathode material for secondary batteries", JOURNAL OF POWER SOURCES, vol. 54, no. 2, 1995, pages 209 - 213, XP004044406
See also references of EP 3376573A4
See also references of EP 3376573A4
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
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