POSITIVE ELECTRODE MATERIAL, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY POSITIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

申请公布号：: JP2016192313(A)
申请号：: JP20150071689
申请日期：: 2015.03.31
申请公布日期：: 2016.11.10
申请人：: DENSO CORP
发明人：: SHIMONISHI YUTA;YAMAMOTO NOBUO;KOMINE SHIGEKI;SATO YOSHINOBU;TACHIBANA YUKI
分类号：: H01M4/525;C01G53/00;H01M4/505
主分类号：: H01M4/525
摘要：: PROBLEM TO BE SOLVED: To provide a positive electrode material, a nonaqueous electrolyte secondary battery positive electrode and a nonaqueous electrolyte secondary battery, in which a crystal structure is suppressed from being collapsed during charge/discharge and which are excellent in safety.SOLUTION: A positive electrode material of the present invention is represented by LiNiMMMnO(where, 0.50<α≤1.33, 0.33≤γ≤0.80, 0≤η≤1.00, 0≤β<0.67, β+γ≤0.80 and 0≤ε≤1.00 are satisfied, Mrepresents at least one selected from Co and Ga, and Mrepresents at least one selected from among Ge, Sn and Sb), has a layered structure including a Li layer and a Ni layer, and includes a six-coordinated local structure involving Mand M. In a nonaqueous electrolyte secondary battery positive electrode 14 and a nonaqueous electrolyte secondary battery 1 of the present invention, the positive electrode material is used.SELECTED DRAWING: None