Panasonic Intellectual Property Management Co., Ltd.

Kazuko Asano

Kensuke Nakura

Akira Kano

Junichi Sakamoto

Tooru Matsui

Mitsuhiro Hibino

Jin Zhang

Ryuichi Natsui

Kiyoshi Kanamura

Tsuyoshi Ichinose

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 active material for a fluoride ion secondary battery includes a metal composite fluoride. The metal composite fluoride contains at least one metal selected from the group consisting of an alkali metal, an alkaline earth metal, scandium, yttrium, and a lanthanoid; a first transition metal; a second transition metal different from the first transition metal; and fluorine.

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

A lithium secondary battery includes: a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and a nonaqueous electrolyte solution filled between the positive electrode and the negative electrode. The negative electrode includes: an electrically conductive layer having a surface; and lithium metal pieces arranged spaced from each other on the surface of the electrically conductive layer. There is no lithium metal on an imaginary line extending from a first end to a second end opposite to the first end of the surface of the electrically conductive layer and traversing a space between the lithium metal pieces.

Lithium secondary battery including lithium metal as negative electrode active material

A lithium secondary battery includes: a positive electrode; a negative electrode including a negative electrode collector having a surface, on which a lithium metal is deposited during charge; a separator disposed between the positive electrode and the negative electrode; and a nonaqueous electrolyte solution filled between the positive electrode and the negative electrode. The negative electrode collector includes projection portions projecting from the surface toward the separator. There is no projection portion on an imaginary line extending from a first end to a second end opposite to the first end of the surface of the negative electrode collector and traversing a space between the projection portions.

A lithium metal secondary battery includes a positive electrode, a negative electrode, a solid electrolyte, and a soft electrolyte. The negative electrode includes a negative electrode current collector having at least one hole, in which lithium metal is deposited in a charged state. The solid electrolyte is disposed on the surface, which face negative electrode current collector, of the positive electrode. The soft electrolyte fills the space between the negative electrode current collector and solid electrolyte and entering into the at least one hole. The solid and soft electrolytes have lithium ion conductivity.

Lithium metal secondary battery using lithium metal as negative electrode active material

A negative electrode active material contains a lithium-containing transition metal oxynitride having a crystal structure belonging to the space group Fm3m. An electrochemical device includes a negative electrode which contains a negative electrode active material containing a lithium-containing transition metal oxynitride having a crystal structure belonging to the space group Fm3m; a positive electrode; and an electrolyte.

Negative electrode active material and electrochemical device

A negative electrode active material includes a compound represented by a composition formula of MgMeOH, where Me is at least one selected from the group consisting of Mn, Fe, Co, Ni, and Cu, and 0.5&#x2264;x&#x2264;0.9.

Negative electrode active material for rechargeable battery using conversion reaction, and battery including the same

A positive-electrode active material contains a compound that has a crystal structure belonging to the space group FM3-M and that is represented by the composition formula (1):LiMeOF&#x2003;&#x2003;(1)

Positive-electrode active material and battery

A positive electrode material includes an active material represented by LiMnNiMoO(where 0&#x3c;x&#x3c;0.4).

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Osaka, Japan

Kazuko Asano