Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Panasonic Holdings Corporation

Tomoyuki Komori

Takashi Kubo

Eiji Fujii

Akihiro Sakai

Tetsuya Asano

Yuji Zenitani

Takashi Otsuka

Izuru Sasaki

Hidekazu Arase

Tomoko Suzuki

Atsushi Omote

Takashi Nishihara

Takashi Ohtsuka

Takahiro Hamada

Akihiro Itoh

Kensuke Wakasugi

Keita Mizuno

Takehiro Tanaka

Mikiya Fujii

An active material contains a composite metal fluoride containing Al, F, and Ti and can occlude and release fluoride ions. The composite metal fluoride is represented by a compositional formula: AlTiF, where x satisfies 0.01≤x≤0.9 and y satisfies, 2≤y≤4.

Active material, negative electrode active material, and fluoride ion secondary battery

A battery includes a first portion and a second portion, in which the first portion includes a first positive electrode layer, a first negative electrode layer, and a first solid electrolyte layer located between the first positive electrode layer and the first negative electrode layer, in which the second portion includes a second positive electrode layer, a second negative electrode layer, and a second solid electrolyte layer located between the second positive electrode layer and the second negative electrode layer, in which the first portion and the second portion are in contact with each other, the second portion is more sharply bent than the first portion, the first solid electrolyte layer contains a first binder, the second solid electrolyte layer contains a second binder, and the second solid electrolyte layer containing the second binder has higher flexibility than a flexibility of the first solid electrolyte layer containing the first binder.

Battery

A fluoride ion conductor contains potassium, at least one alkaline earth metal selected from the group consisting of calcium, barium, and strontium, and fluorine. The fluoride ion conductor includes a phase of a compound containing potassium, at least one alkaline earth metal, and fluorine.

Fluoride ion conductor containing potassium, alkaline earth metal, and fluorine, and fluoride ion secondary battery including the same

A fluoride ion conductor contains rubidium, magnesium, and fluorine. In an average composition of the fluoride ion conductor, the ratio of the number of moles of the magnesium to the total number of moles of the rubidium and the magnesium is less than 0.4.

Fluoride ion conductor containing rubidium, magnesium, and fluorine, and fluoride ion secondary battery including the same

A fluoride shuttle secondary battery includes a positive electrode layer, a negative electrode layer, and an electrolyte layer. The electrolyte layer is located between the positive electrode layer and the negative electrode layer. At least one layer selected from the group consisting of the positive electrode layer, the negative electrode layer, and the electrolyte layer includes lanthanum fluoride and strontium fluoride.

Fluoride shuttle secondary battery

A battery cell includes a first resistance change member having first and second terminals, a first power generation element including a first positive electrode, a first negative electrode, and a first electrolyte interposed between the first positive electrode and the first negative electrode, a first case enclosing the first power generation element and the first resistance change member, and first positive and negative electrode terminals. At least one of the first positive electrode, the first negative electrode, and the first electrolyte contains a first sulfur-based material. The first resistance change member contains a first resistance change material of which electrical resistance is changed by a chemical reaction with hydrogen sulfide. The first and second terminals of the first resistance change member are exposed to the outside of the first case, and the first resistance change member is not electrically connected to any of the first positive and negative electrode terminals.

Battery cell, battery module, detection system, and determination system

An exemplary lithium secondary battery includes: a positive electrode including a positive-electrode active substance layer; a negative electrode; and a solid electrolyte layer. The positive-electrode active substance layercomprises lithium cobaltate, and has an &#x3b1;-NaFeOtype crystal structure. The positive-electrode active substance layerincludes a lower layer, and an upper layerinterposed between the lower layer and the solid electrolyte layer. The lower layeris oriented in the (110) plane. The upper layeris composed only of first regionsoriented in the (110) plane and second regionsoriented in the (018) plane, the first and second regions being mixedly present in the xy plane of the positive-electrode active substance layer. The solid electrolyte layercomprises lithium lanthanum titanate, and has a tetragonal perovskite-type crystal structure. The solid electrolyte layeris oriented in the (110) or (102) plane.

All-solid lithium secondary battery

An exemplary all-solid lithium secondary battery includes a positive electrode including a positive-electrode active substance layer, a negative electrode, and a solid electrolyte layer interposed between the positive electrode and the negative electrode. The positive-electrode active substance layer is composed of lithium cobaltate, and has an &#x3b1;-NaFeOtype crystal structure. The positive-electrode active substance layer has a (018) plane oriented in a normal direction of a principal face of the positive-electrode active substance layer. The solid electrolyte layer is composed of lithium lanthanum titanate and has a tetragonal perovskite-type crystal structure. The solid electrolyte layer has a (110) plane or a (102) plane oriented in a normal direction of a principal face of the solid electrolyte layer.

A lithium secondary battery includes: a positive electrode including a positive-electrode active material layer; a negative electrode including a negative-electrode active material layer; and an ion conductor being lithium ion conductive and interposed between the positive electrode and the negative electrode. The positive-electrode active material layer is composed of lithium cobaltate, and has an &#x3b1;-NaFeOtype crystal structure. The positive-electrode active material layer is composed only of first regions oriented in the (110) plane and second regions oriented in the (018) plane, the first regions and the second regions being mixedly present in the xy plane of the positive-electrode active material layer, where x and y axes are defined as two axes that are parallel to the principal face of the positive-electrode active material layer, and a z axis is defined as an axis perpendicular to the principal face.

Lithium secondary battery

A solar cell element includes: a transparent body; a MgAglayer (0.001&#x2266;x&#x2266;0.045) having a thickness (2-13 nm); a ZnO layer having an arithmetical mean (Ra: 20-870 nm); and a transparent conductive layer. A photoelectric conversion layer including n-type and p-type layers further includes n-side and p-side electrodes. The ZnO layer is composed of ZnO columnar crystal grains grown on the MgAglayer, and each ZnO grain has a longitudinal direction along a normal line of the body, has a width increasing from the MgAglayer toward the transparent conductive layer, has a width which appears by cutting each ZnO grain along the normal line, and has a R2/R1 ratio (1.1-1.8). R1 represents the width of one end of the ZnO grain, and the one end is in contact with the surface of the MgAglayer, and R2 represents the width of the other end of the ZnO grain.

Solar cell element

A proton conductor includes an electrolytic layer having first and second main surfaces; and a plurality of catalyst particles. The first main surface of the electrolytic layer includes a flat portion and a plurality of recessed portions. The plurality of catalyst particles are respectively located in the plurality of recessed portions. The flat portion of the first main surface and parts of surfaces of the plurality of catalyst particles exposed from the plurality of recessed portions form a third main surface. The electrolytic layer is formed of a single crystal of a perovskite-type oxide having a proton conductivity. The catalyst particles are formed of a single crystal of a noble metal material. The perovskite-type oxide of the electrolytic layer) has a crystal orientation that matches a crystal orientation of the noble metal material of the plurality of catalyst particles.

Proton conductor and proton conductor device

The present invention provides an entire solid lithium secondary battery comprising: a cathode; an anode; and a solid electrolyte layer interposed between the cathode and the anode. The solid electrolyte layer is formed of a LiNbOcrystal (where 0.10&#x2266;x&#x2266;0.35) having a trigonal ilmenite crystal structure. This entire solid lithium secondary battery has a high charge-discharge property.

Entire solid lithium secondary battery

The present invention provides an entire solid lithium secondary battery comprising: a cathode; an anode; and a solid electrolyte layer disposed between the cathode and the anode. The solid electrolyte layer is formed of a LiTaOcrystal (where 0.12&#x2266;x&#x2266;0.46) having a trigonal ilmenite crystal structure. This entire solid lithium secondary battery has a good charge-discharge property.

Growing community of inventors

Osaka, Japan

Tomoyuki Komori