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Patent Searching and Data


Title:
NICKEL-MANGANESE-BASED COMPOSITE OXIDE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2018/169004
Kind Code:
A1
Abstract:
Provided is a nickel-containing lithium-manganese composite oxide in which the amount of transition metal ions in a Li layer is small, which exhibits excellent cycle characteristics, and which can be advantageously used in a lithium ion secondary battery. The nickel-containing lithium-manganese composite oxide is represented by general formula (1): Li1+x(NiyMn1-y)1-xO2 [in the formula, x and y are such that 0.0 ≤ x < 1/3 and 0.3 ≤ y ≤ 0.6]. The nickel-containing lithium-manganese composite oxide contains a layered halite crystal phase, has a lattice constant a of 2.870 Å or less, and has a lattice volume of 102.0 Å3 or less.

Inventors:
TABUCHI MITSUHARU (JP)
KATAOKA RIKI (JP)
Application Number:
PCT/JP2018/010239
Publication Date:
September 20, 2018
Filing Date:
March 15, 2018
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Assignee:
AIST (JP)
International Classes:
C01G53/00; H01M4/505; H01M4/525
Foreign References:
JP2003017049A2003-01-17
JPH05283076A1993-10-29
JP2007184145A2007-07-19
JP2003068298A2003-03-07
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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