POSITIVE ELECTRODE AND SECONDARY BATTERY USING SAME

WIPO Patent Application WO/2016/021684

A1

The present invention relates to a positive electrode which is characterized by containing an Mn composite oxide having a tetragonal structure represented by formula (1) Lia(MxMn2-x-yYy)(O4-wZw) (wherein 1 < a ≤ 2.6, 0 ≤ x ≤ 1.2, 0 ≤ y, x + y < 2, 0 ≤ w ≤ 1; M represents at least one element selected from among Co, Ni, Fe, Cr and Cu; Y represents at least one element selected from among Li, B, Na, Mg, Al, Ti, Si, K and Ca; and Z represents F and/or Cl) and a composite oxide having a lamellar structure represented by formula (2) Li(LixM1-x-yYy)O2 (wherein 0 ≤ x < 0.3, 0 ≤ y < 0.3; M represents at least one element selected from among Co, Fe, Ni and Mn; and Y represents at least one element selected from among Mg, Al, Zr, Ti and Zn). The present invention is capable of providing a lithium secondary battery which has high capacity and excellent cycle characteristics.

WO/2012/024499	STATIONARY, FLUID REDOX ELECTRODE
JP7191071	Positive electrode active material and secondary battery comprising the positive electrode active material
JP6087101	Accumulating electricity device

TAKAHASHI MAKIKO (JP)
NOGUCHI TAKEHIRO (JP)
KATOU YUUKOU (JP)

PCT/JP2015/072345

February 11, 2016

August 06, 2015

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NEC CORP (JP)

H01M4/505; C01G53/00; H01M4/131; H01M4/36; H01M4/38; H01M4/525; H01M10/052; H01M10/0525; H01M10/0566

JP2007103339A	2007-04-19
JP2008084743A	2008-04-10
JP2013051202A	2013-03-14
JP2010198899A	2010-09-09
JP2000260423A	2000-09-22
JP2013520782A	2013-06-06
JP2002203558A	2002-07-19
JP2001126731A	2001-05-11
JP2003331824A	2003-11-21

ITO, Katsuhiro et al. (JP)
Katsuhiro Ito (JP)

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