Ngk Insulators, Inc.

Naoto Ohira

Tsutomu Nanataki

Hirofumi Yamaguchi

Yukinobu Yura

Shinsuke Yano

Natsumi Shimogawa

Shigeki Okada

Yoshihiro Tanaka

Koji Kimura

Ryuta Sugiura

Shohei Yokoyama

Shuichi Ozawa

Kouichi Kondou

Miho Endo

Yura Yukinobu

A positive electrode is configured by plurality of mutually bonded primary particles respectively composed of a lithium composite oxide having a layered rock-salt structure. An average orientation angle of the plurality of primary particles relative to a plate face direction parallel to a plate face is more than 0&#xb0; and less than or equal to 30&#xb0;. An aggregate surface area of primary particles that have an aspect ratio of greater than or equal to 4 is greater than or equal to 70% relative to a total area of the plurality of primary particles, in cross section.

Positive electrode

A positive electrode is configured by a plurality of mutually bonded primary particles respectively composed of a lithium composite oxide having a layered rock-salt structure. An average orientation angle of the plurality of primary particles relative to a plate face direction parallel to a plate face is more than 0&#xb0; and less than or equal to 30&#xb0;. An aggregate area of primary particles that have an orientation angle relative to the plate face direction of more than 0&#xb0; and less than or equal to 30&#xb0; is greater than or equal to 70% relative to a total area of the plurality of primary particles, in a cross section.

The plate-shaped lithium composite oxide is configured by a plurality of mutually bonded primary particles respectively composed of a lithium composite oxide having a layered rock-salt structure. When fully charged, an expansion-contraction ratio E in a plate face direction parallel to a plate face is less than or equal to 0.5%.

Plate-shaped lithium composite oxide

The present invention relates to a composite electronic component having a dielectric body portion inside of which a conductive body is provided, and a magnetic body portion inside of which a conductive body is provided. In the present invention, a layer made of a metal material is arranged between the dielectric body portion and the magnetic body portion as an intermediate layer.

Composite electronic component

The present invention relates to a method for manufacturing cathode active material for a lithium secondary battery. The manufacturing method according to the present invention is characterized by including: (1) an intermediate generation process, wherein an intermediate which is powder or a shaped object containing the first material compound which is a compound of the transition metal other than lithium, which constitutes said lithium composite oxide, is generated, (2) a lithium source compound addition process, wherein the second material compound which is a lithium compound is added so that the second material compound in the shape of film may adhere to the surface of said intermediate, and (3) a sintering process, wherein lithium composite oxide is generated by sintering said intermediate in the state where said second material compound has adhered to its surface.

Method for manufacturing cathode active material for lithium secondary battery

An easily-administered technology which demonstrates the intrinsic thermal conductivity improvement effect by addition of non-oxide system compound crystal phase (filler particles) and makes it possible to sufficiently raise the thermal conductivity of a glass-ceramics composite material is provided. In the glass phase which constitutes a glass-ceramics composite material, the quantity of aluminum oxide (AlO) component is increased under a condition where at least either of zinc oxide (ZnO) component or magnesium oxide (MgO) component exists in a predetermined quantity or more. Thereby, the unintended reaction between a non-oxide system compound crystal phase and a glass phase can be suppressed, and the intrinsic thermal conductivity improvement effect by addition of non-oxide system compound crystal phase (filler particles) can be demonstrated.

Glass-ceramics composite material

A glass-ceramics composite material suitable for a low-temperature firing use, which has high moisture resistance and thermal conductivity, is provided. In the glass-ceramics composite material which contains aluminum nitride (AlN) particles as a filler, even in a case where boron oxide (BO) is blended as a flux of a glass phase, by adjusting the composition of raw materials which forms the glass phase to a specific conditions to make the crystal phase which contains boron (B) precipitate at the time of firing of the glass-ceramics composite material.

The first invention relates to powders for producing a Ni&#x2014;Cu&#x2014;Zn system ferrite ceramics sintered body, comprising ferrite calcined powders and NiO powders, wherein the specific surface area of said ferrite calcined powders is within the range of 4.0 m/g to 14.0 m/g, the spinel included in said ferrite calcined powders is such that Ni does not solve, the composition of said spinel is such that FeOis within the range of 49.0 mol % to 60.0 mol % and the remaining comprises CuO and ZnO, and the ratio of ZnO relative to CuO in mole percent is within the range of 1.0 to 4.0.

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Nagoya, Japan

Naoto Ohira