Panasonic Intellectual Property Management Co., Ltd.

Kyoto University

Mitsuhiro Hibino

Kensuke Nakura

Ryuichi Natsui

Hiroshi Kawada

Kazuko Asano

Jin Zhang

Takeshi Yao

Masahisa Fujimoto

Akiko Murata

Junko Matsushita

Kosuke Kuroda

Youshin Lee

Hidetaka Okada

Takanori Omae

Masako Yokoyama

Takeshi Yabutsuka

Seiji Yamaguchi

This positive electrode active material for nonaqueous electrolyte secondary batteries contains a lithium transition metal composite oxide that is represented by composition formula LiMnNiPMOF(wherein M represents at least one element that is selected from among Ti, Co, Si, Sr, Nb, W, Mo, Ca, Mg, Sb, Na, B, V, Cr, Fe, Cu, Zn, Ge, Zr, Ru, K and Bi; 1.0<x≤1.2; 0.4≤y≤0.8; 0≤z≤0.4; 0<a<0.01; 0<b<0.05; 0<c<0.1; and (x+y+z+a+b)≤2).

Positive electrode active material for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery

This charging method is A method for charging a nonaqueous electrolyte secondary cell containing a lithium-rich positive-electrode active material. When constant-current charging is performed to a predetermined voltage Vwhich is equal to or higher than a setting voltage Vand then constant-current discharging is performed to a predetermined voltage VV<V≤Vis satisfied. Cell capacity Cat Vcell capacity Cat Vand cell capacity Cat Vsatisfy 0.99C≤C<C

Method for charging nonaqueous electrolyte secondary cell having lithium-transition metal positive electrode active material

The positive electrode active material for a secondary battery includes a lithium-transition metal composite oxide. The lithium-transition metal composite oxide is represented by the general formula Li[LiMnCoMe]O(in the formula, Me is at least one selected from Ni, Fe, Ti, Bi, and Nb, 0.5<α<1, 0.05<x<0.25, 0.4<y<0.7, 0<z<0.25) and has a crystal structure of O2 structure. The particle size distribution of the lithium-transition metal composite oxide has a first peak on the small particle size side and a second peak on the large particle size side.

Positive electrode active material for secondary battery, and secondary battery

This positive electrode active material is for a secondary battery and contains a lithium transition metal complex oxide. The lithium transition metal complex oxide is represented by general formula LiMnNiSbOF(x+y+z+a≤b+c=2, 1≤x≤1.2, 0.4≤y≤0.8, 0≤z≤0.4, 0<a<0.01, and 1.8<b<2 are satisfied) and does not include Co.

A positive electrode active material for nonaqueous electrolyte secondary batteries according to the present invention comprises: a lithium transition metal composite oxide which has a spinel structure; and a coating layer which is provided on the surface of the lithium transition metal composite oxide, while having a spinel structure, and which contains Li but does not contain Mn.

This positive electrode active material for nonaqueous electrolyte secondary batteries includes a lithium transition metal complex oxide that has a spinel structure and that is represented by general formula LiNiMnGeMO(in the formula, 0≤α<0.2, 0≤x<0.2, 0<y<0.45, and 0≤z<0.2 are satisfied, and M represents at least one element selected from the group consisting of Mg, Al, Sc, Ti, Cr, V, Fe, and Co). In a secondary particle of the lithium transition metal complex oxide, the mole number (Ge) of Ge at the surface portion when the total number of moles of metal elements other than Li is defined as 2 is larger than the mole number (Ge) of Ge at the center portion when the total number of moles of metal elements other than Li is defined as 2.

A positive-electrode active material for a magnesium secondary battery contains a composite oxide represented by the following composition formula:M1M2O,where M1 is sodium, M2 is nickel and manganese, and 0<x+y≤2.

Positive-electrode active material and battery

A charge/discharge method of an air battery is a charge/discharge method of an air battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte liquid containing a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, the nonaqueous electrolyte liquid being interposed between the positive electrode and the negative electrode, the charge/discharge method includes: discharging the air battery; and supplying a charging liquid different from the nonaqueous electrolyte liquid from the outside to the inside of the air battery so that a discharge product generated by the discharging is desorbed from the positive electrode while being in the form of a solid.

Air battery and method for using the same

Provided is an active material for a fluoride-ion secondary battery, the active material containing a composite fluoride. The composite fluoride has a layered structure and is represented by a composition formula AMF, where A is an alkali metal, M is a transition metal, 0&#x3c;m&#x2264;2, 1&#x2264;n&#x2264;2, and 3&#x2264;x&#x2264;4. The alkali metal may be at least one kind selected from the group consisting of Na, K, Rb, and Cs. The transition metal may be a 3transition metal.

Active material for fluoride-ion secondary battery and fluoride-ion secondary battery using same

An active material for a fluoride ion secondary battery includes a composite fluoride which contains: an alkali metal or NH; a transition metal; and fluorine.

Active material including composite fluoride for fluoride ion secondary battery, and fluoride ion secondary battery using the same

An object of the present invention is to provide a method for producing bioactive composites having imparted thereto bioactivity, to thereby form and grow in vivo or in vitro a coating layer containing a calcium phosphate compound as the major component with a high adhesion strength on the surface of various types of porous substrates such as a porous shaped body comprising an organic polymer. The means for solving the problem is characterized by comprising at least (1) a step of immersing a porous substrate in a solution containing at least calcium ions and hydrogenphosphate ions, thereby distributing the solution to the inside of at least a part of the pores of the substrate, and (2) a step of depositing fine particles containing a calcium phosphate compound as the major component inside the pores into which the solution is introduced.

Method for producing bioactive composites

The present invention provides a method for stabilizing fine particles of calcium phosphates without lowering their solid phase forming activity. It is possible to stabilize the fine particles of calcium phosphates by stopping the growth of the fine particles formed in an aqueous solution supersaturated with respect to calcium phosphates. More specifically, the fine particles of calcium phosphates were stabilized by lowering the inorganic ion concentration of a fine-particle-forming solution containing fine particles of calcium phosphates by dialysis, ion exchange, dilution, or the like, or by separating the fine particles of calcium phosphates from the fine-particle-forming solution by filtration, centrifuging, or the like.

Method for stabilizing calcium phosphates fine particles, method for manufacturing calcium phosphates fine particles by using the method, and use thereof

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Kyoto, Japan

Mitsuhiro Hibino