摘要:
A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1-xMxP1-ySiyO4 (1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0
摘要:
A method of producing a positive electrode active material, comprising the steps of: preparing a solution by dissolving, in a solvent, respective predetermined amounts of a lithium source, a M source, a phosphorus source and a X source necessary for forming a positive electrode active material represented by the following general formula (1) having an olivine structure; gelating the obtained solution by addition of a cyclic ether; and calcinating the generated gel to obtain a carbon-coated lithium-containing composite oxide, wherein the positive electrode active material is represented by the general formula (1): LixMyP1-zXzO4 (1) wherein M is at least one element selected from the group consisting of Fe, Ni, Mn, Zr, Sn, Al and Y, X is at least one selected from the group consisting of Si and Al, and 0
摘要:
A method of producing a positive electrode active material, comprising the steps of: preparing a solution by dissolving, in a solvent, respective predetermined amounts of a lithium source, a M source, a phosphorus source and a X source necessary for forming a positive electrode active material represented by the following general formula (1) having an olivine structure; gelating the obtained solution by addition of a cyclic ether; and calcinating the generated gel to obtain a carbon-coated lithium-containing composite oxide, wherein the positive electrode active material is represented by the general formula (1): LixMyP1-zXzO4 (1) wherein M is at least one element selected from the group consisting of Fe, Ni, Mn, Zr, Sn, Al and Y, X is at least one selected from the group consisting of Si and Al, and 0
摘要:
A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1-xMxP1-ySiyO4 (1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0
摘要:
A cathode active material of the present invention for use in a nonaqueous secondary battery, the cathode active material includes: a main crystalline phase including a lithium-containing transition metal oxide containing manganese and having a spinel structure; and a sub crystalline phase contained in the main crystalline phase, the sub crystalline phase being identical in oxygen arrangement to the lithium-containing transition metal oxide and different in elementary composition from the lithium-containing transition metal oxide, a main crystalline phase part around the sub crystalline phase and the sub crystalline phase having a same crystal orientation.
摘要:
A positive active material according to the present invention used in a nonaqueous secondary battery, includes a lithium-containing transition metal oxide containing manganese, as a crystal structure of a main crystalline phase, and a sub oxide and tin (IV) oxide, each of which having an oxygen arrangement identical to that of the lithium-containing transition metal oxide however has a different element composition, the sub oxide and tin (IV) oxide being included in a state in which presence of the sub oxide and tin (IV) oxide is confirmable by diffractometry.
摘要:
A cathode active material of the present invention for use in a nonaqueous secondary battery includes: a main crystalline phase including a lithium-containing transition metal oxide containing manganese and having a spinel structure; and a sub crystalline phase which is in a layer shape and which is contained in the main crystalline phase, the sub crystalline phase being identical in oxygen arrangement to the lithium-containing transition metal oxide and different in elementary composition from the lithium-containing transition metal oxide, the main crystalline phase being in an octahedral shape having a plurality of edges, the plurality of edges including a longest edge having a length of not greater than 300 nm.
摘要:
In a multiple inorganic compound structure according to the present invention, elements included in a main crystalline phase and elements included in a sub inorganic compound are present in at least a first region and a second region, the first region and the second region each have an area of nano square meter order, the first region is adjacent to the second region, and the first region and the second region each include an element of an identical kind, which element of the identical kind present in the first region has a concentration different from that of the element of the identical kind present in the second region.
摘要:
An multiple inorganic compound structure according to the present invention is a multiple inorganic compound structure including a main crystalline phase, which main crystalline phase contains a sub crystalline phase inside the main crystalline phase, the sub crystalline phase having a non-metallic element arrangement identical to that of the main crystalline phase. A metal element identical to at least one metallic element included in the sub crystalline phase is formed as a solid solution in the main crystalline phase, and its crystal orientation in a main crystalline phase part is identical to that of the sub crystalline phase.