Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Yuka Okada

Akiko Murata

Tsuguhiro Korenaga

Takamasa Ando

Masa-aki Suzuki

Norihisa Takahara

Tatsutoshi Suenaga

Shinji Ando

Sho Shibata

Masaki Fujikane

Mari Onodera

The present disclosure provides a flow battery comprising a flexible lithium ion conductive film having durability against a highly reductive non-aqueous electrolyte liquid. The flow battery according to the present disclosure comprises a first non-aqueous electrolyte liquid, a first electrode, a second electrode, and a lithium ion conductive film. The first non-aqueous electrolyte liquid contains lithium ions and further biphenyl, phenanthrene, stilbene, triphenylene, anthracene, acenaphthene, acenaphthylene, fluorene, fluoranthene, o-terphenyl, m-terphenyl, or p-terphenyl. The lithium ion conductive film comprises a composite body. The composite body contains a lithium ion conductive polymer and polyvinylidene fluoride. The lithium ion conductive polymer includes an aromatic ring into which a lithium salt of an acidic group has been introduced. The lithium ion conductive polymer and the polyvinylidene fluoride have been mixed with each other homogeneously in the composite body.

Non-aqueous flow battery with lithium ion conductive film

The flow battery according to the present disclosure comprises a first non-aqueous liquid, a first electrode in contact with the first non-aqueous liquid, a second electrode which serves as a counter electrode of the first electrode, and a lithium ion conductive film which separates the first electrode and the second electrode from each other. The lithium ion conductive film is formed of a polymer base material containing an ionic polymer. The polymer base material has an interspace which communicates with an outside thereof. The polymer base material is formed of at least one kind of resin selected from the group consisting of a thermosetting resin and a thermoplastic resin which has a melting point of not less than 150 degrees Celsius. The ionic polymer is contained in an inside of the interspace of the polymer base material. The ionic polymer is represented by  

Flow battery

A flow battery includes a first liquid containing a first nonaqueous solvent; a first electrode immersed in the first liquid; a second electrode which is a counter electrode to the first electrode; and a separator separating the first electrode from the second electrode. The separator includes a solid electrolyte containing: a metal compound and a nonionic polymer which includes a poly(alkylene oxide) and cross-linking points. At least one of alkylene oxide units forming the poly(alkylene oxide) is composed of a tetramethylene oxide unit.

Flow battery including separator containing nonionic polymer

A liquid treatment method according to an aspect of the present disclosure comprises: starting application of a power between a pair of electrodes to generate plasma, which causes active species to be produced in a liquid; measuring the hydrogen ion concentration in the liquid while the plasma is generated; measuring a time elapsed after the starting the application of the power; and stopping the application of the power when a value calculated by (a) multiplying the hydrogen ion concentration by the elapsed time or (b) integrating the hydrogen ion concentration with respect to the elapsed time is larger than a first threshold.

Liquid treatment method and liquid treatment apparatus for treating a liquid with plasma

In a diffraction optical element having a structure in which a base and an optical adjustment layer adhere to each other, defects such as cracks and peeling occur in the optical adjustment layer, when the adhesive strength between the base and the optical adjustment layer is degraded. In a diffraction optical elementof the present invention, a plurality of anchor groovesare formed in a planar second regionof a base. Further, a depth of an anchor groove of the plurality of anchor grooves, which is positioned on an outermost side, is designed so as to be smaller than a depth of another anchor groove of the plurality of anchor grooves, which is positioned on an innermost side. An optical adjustment layeradheres so as to cover a first regionin which a diffraction gratingis formed and the second regionin which the anchor groovesare formed of the base

Diffraction optical element and production method therefor

A diffraction grating lens according to the present invention is a diffraction grating lensincluding: a lens body; and a plurality of diffraction steps relative to a base shape and a plurality of diffraction gratingsinterposed between the diffraction steps, provided on a surface of the lens body. The lens bodyis made of a first material having a refractive index n(&#x3bb;) at a used wavelength &#x3bb;; the diffraction gratingis in contact with air; and the relationship of an inequality below is satisfied, where d is a design step length of the diffraction steps, and m is an order of diffraction. Each of the plurality of annular zones includes an intermediate portion and a pair of end portions sandwiching the intermediate portion along a radial direction, and in at least one of the plurality of annular zones, either one of a recessand a protrusionis provided in at least a portion of one of the pair of end portions, and the other one of the recessand the protrusionis provided in at least a portion of the other of the pair of end portions. Between two kinds of diffraction stepsA andB of the diffraction grating, one is provided at a position where the phase difference from the base shape given the design wavelength &#x3bb;is not 2 nm&#x3c0;. 

Diffraction grating lens and imaging device in which the same is used

A diffractive optical element according to the present invention includes: a bodybeing composed of a first optical material containing a first resin, and having a diffraction gratingon a surface thereof; and an optical adjustment layerbeing composed of a second optical material containing a second resin, and provided on the body so as to cover the diffraction grating. A difference between a solubility parameter of the first resin and a solubility parameter of the second resin is 0.8 [cal/cm]or more, and the first resin and the second resin each have a benzene ring.

Diffractive optical element

A diffractive optical element according to the present invention includes: a bodybeing composed of a first optical material containing a first resin, and having a diffraction gratingon a surface thereof; and an optical adjustment layerbeing composed of a second optical material containing a second resin, and provided on the bodyso as to cover the diffraction grating. The first optical material has a refractive index which is smaller than a refractive index of the second optical material; the refractive index of the first optical material has a wavelength dispersion which is greater than a wavelength dispersion of the refractive index of the second optical material; and a difference in solubility parameter between the first resin and the second resin is no less than 0.8 [cal/cm]and no more than 2.5 [cal/cm].

Diffractive optical element and manufacturing method thereof

According to a method for producing a diffraction optical element, the center of a molding face and the center of a substrate are positionally aligned to each other based on a marker of a prescribed shape which is formed at the center of the molding face of a mold and the shape of a diffraction grating of the substrate. A nanocomposite material is located between the molding face and the diffraction grating, and the material is pressed by the mold and the substrate to form an optical adjusting layer on the diffraction grating.

Method for producing diffractive optical element, and diffractive optical element, including a diffraction grating and molded optical adjusting layer

A second region () composed of a plane is formed around a first region () having a lens function, and a third region () is formed between the first region and the second region. A protection film () is formed on the surface of the first region. The first region is protruded relative to the second region, the third region is formed throughout the rim of the first region, and the surface of the third region is recessed relative to a virtual curved surface () that is a curved surface along the surface shape of the first region being extended to the second region. Consequently, it is possible to form throughout the first region a protection film having a surface shape that substantially matches the surface shape of the first region.

Lens having protection film and method for manufacturing such lens

A diffractive optical element () includes a substrate (), a protective film (), and a diffraction grating () disposed between the substrate () and the protective film (), wherein the diffraction grating () is formed of a composite material containing a resin and inorganic particles, a volume ratio of the inorganic particles with respect to the composite material is equal to or smaller than 50% by volume, and the diffraction grating () has a thickness of equal to or smaller than 20 &#x3bc;m. Since the diffractive optical element () uses the composite material containing the resin and the inorganic particles as a material for the diffraction grating (), which is relatively difficult to process, the moldability improves compared with the conventional case of using glass, etc.

Diffractive optical element with improved light transmittance

A composite material () includes a resin (), and first inorganic particles () dispersed in the resin and containing at least zirconium oxide. The composite material has a refractive index at the d line nof not less than 1.60 and an Abbe's number &#x3bd;of not less than 20, and satisfies a relationship n&#x2267;1.8&#x2212;0.005 &#x3bd;. This composite material exhibits both a high refractive index and low dispersion in good balance, and has excellent workability. Accordingly, using this composite material makes it possible to realize a small optical component having favorable wavelength characteristics.

Growing community of inventors

Hyogo, Japan

Yuka Okada