Denso Corporation

Toyota Jidosha Kabushiki Kaisha

Denso Corpora Tion

Uchiyama Manufacturing Corp.

Naohiro Hayashi

Hiromasa Suzuki

Hiroyuki Matsubara

Oji Kuno

Masakazu Murata

Keita Takahashi

Shingo Ohta

Masaki Watanabe

Masahiro Oonishi

Kenichi Ito

Kazuya Yoshijima

Yuki Aoki

Koji Tamai

Hiroyuki Sato

Ryohei Yamamoto

Suguru Imamura

Shunsuke Yamakawa

Ikuna Satou

Hitoshi Onodera

Naohisa Miyashita

Daisuke Uotani

Naoto Matsubara

Kenji Takeuchi

A positive electrode layer for an all-solid-state battery, includes a first phase including a positive electrode active material containing Li, a second phase including a garnet-type solid electrolyte containing Li, Bi, M2, and O, and a third phase different from the first phase and the second phase. The third phase includes a Li—Bi-M2-O-based compound containing Li, Bi, M2, and O, and M2 is at least one element selected from the group consisting of Ca, Sr, Ba, Mg, Y, and Rb.

Positive electrode layer for all-solid-state battery, manufacturing method of positive electrode layer for all-solid-state battery, and all-solid-state battery

A lithium-ion secondary battery includes: a single cell that includes a first electrode, a separator stacked on the first electrode, and a second electrode stacked on the separator. The first electrode includes a porous body that includes at least one LLZ-based solid electrolyte of a lithium lanthanum zirconate or the lithium lanthanum zirconate doped with an atom other than a Li atom, a La atom, and a Zr atom, and has a pore, and an active material held in the pore. The separator has a relative density of 80% or more, and includes the at least one LLZ-based solid electrolyte of the lithium lanthanum zirconate or the lithium lanthanum zirconate doped with the atom other than the Li atom, the La atom, and the Zr atom, and at least one of a B atom, a P atom, or a Si atom.

Lithium-ion secondary battery and manufacturing method thereof

The sintered body has an average particle size in the range of 0.1 &#x3bc;m or more and 5 &#x3bc;m or less, includes gamet-type oxide base material particles having at least Li, La, and Zr, has 8% by volume or more of voids, and has an ionic conductivity of 1.0&#xd7;10S/cm or more at temperature of 25&#xb0; C.

Sintered body and method for manufacturing thereof

A honeycomb structure includes a central area and a reinforced outer peripheral area. For a boundary cell having cell walls with different wall thicknesses on two sides parallel with an imaginary parallel line, a thin wall thickness t&#x3c;a thick wall thickness t, an inner wall thickness t&#x3c;an outer wall thickness t, t=t, and t=t. The honeycomb structure includes a cross-shaped unit having a thin wall, an inner wall, a cell wall, and a cell wall and a cross-shaped unit having a thick wall, an outer wall, a cell wall, and a cell wall. The honeycomb structure also includes cross-shaped units extending vertically and horizontally from alternate cell vertexes arranged from a cell vertex as a starting point. In the central area and the reinforced outer peripheral area, the cell walls of each cross-shaped unit have a substantially equal wall thickness.

Honeycomb structure and die

A honeycomb structure includes a central area and a reinforced outer peripheral area. A reference boundary cell with an inner wall orthogonal to an imaginary straight line, adjacent to the honeycomb center, and thinner than an outer wall adjacent to the honeycomb periphery has a reference wall different in wall thickness from the other three cell walls among the remaining four cell walls excluding the inner wall and the outer wall. The honeycomb structure includes a reference Y-shaped unit having the reference wall, the outer wall, and a cell wall. The honeycomb structure includes a plurality of Y-shaped units extending in the same directions as the reference Y-shaped unit. For every Y-shaped unit in the central area and the reinforced outer peripheral area of the honeycomb structure, the cell walls of each Y-shaped unit has an equal wall thickness.

A method performs evaluation of properties of a clay rod, with which a honeycomb structural body is produced. The method mixes raw materials to produce a clay, and extrudes the clay and compresses the extruded clay to produce a clay rod. The method performs NMR to detect at least one of a T1 relaxation time and a T2 relaxation time in each of a normal part and an abnormality part extracted from the clay rod. Each of the T1 relaxation time and the T2 relaxation time corresponds to a relaxation time of nuclear spins of water protons magnetically excited in each of the normal part and the abnormality part. The method performs the evaluation of uniformity of a mixed state and a compression state of the clay rod based on a difference in T1 relaxation time and T2 relaxation time between the normal part and the abnormality part.

Evaluation method for clay and manufacturing method of extrusion molded body

A flow speed control plate is provided for use in combination with a die for forming a monolith. The flow speed control plate includes: a base plate having both a clay supply surface and a clay outflow surface that is to be superposed on a clay inflow surface of the die; clay flow holes which each penetrate the base plate and through which the clay flows from the clay supply surface to the clay outflow surface; and a positioning mechanism provided to position the flow speed control plate with respect to the die so that each of the clay flow holes of the flow speed control plate has its central axis arranged coaxially with a central axis of a corresponding one of clay inflow holes of the die. Moreover, a diameter of the clay flow holes is set to be smaller than a diameter of the corresponding clay inflow holes.

Flow speed control plate

A honeycomb structure body has an inner side base section and an outer side base section having a cylindrical shape. Inner side cells are formed in the inner side base section at a constant cell density. Outer side cells are formed in the outer side base section. A cell density of the outer side cells varies a radius direction. The outer side cells are formed on the basis of a relational equation of y=a(x&#x2212;b)+c, where x is a distance on the outer side base section measured from a central point on a radial cross section, y indicates the number of the outer side cells per one cmat the distance x, a is a negative constant, b is a radius of the inner periphery of the outer side base section, c is the number of the inner side cells per one cm, and n is a degree.

Honeycomb structure body and method of designing the same

Evaluation method of exhaust gas simulation capable of simply and appropriately evaluating the validity of the simulation is provided. In analysis data, an analysis amplitude curve is calculated in which a change in the concentration of virtual exhaust gas at the observation point in the converged pipe portion is plotted, and an analysis time interval between the zero point and the reference point in the analysis amplitude curve is plotted. In actual measurement data, an actual amplitude curve is provided in which a change in the specific gas component at an observation point is measured with time, and an actual time interval is provided in which a time interval from a zero point to a reference point in the actual amplitude curve. The analysis data is determined as valid when a difference between the analysis time interval and the actual time interval is within a predetermined correlation range.

Method for evaluating exhaust gas simulation

A honeycomb structure body has main cells having a tubular shape and main cell walls. Each main cell is surrounded by the main cell walls. A virtual base structure body has base cell walls and base cells. The honeycomb structure body has an improved structure obtained by modifying a structure of the virtual base structure body. Each base intersecting point, at which base cell walls intersect, is determined by a polar coordinate (r, &#x3b8;) using a radius vector r and a deflection angle &#x3b8;. Each main intersecting point is formed on a polar coordinate (r', &#x3b8;) using the deflection angle &#x3b8; and a main radius vector r&#x2032; which is obtained by multiplying the radius vector r and a constant magnification without changing the deflection angle &#x3b8;. A cell density varying section varies its cell density and is formed in at least a part of the honeycomb structure body.

Honeycomb structure body and method of designing honeycomb structure body

A method feeds raw material into a metal die and extrudes the raw material to produce a honeycomb molded body. The method fires the honeycomb molded body to make a honeycomb structural body. The metal die has a first metal die and a second metal die arranged at an upstream side of an extrusion direction of the raw material and a second metal die arranged at a downstream side of the extrusion direction of the raw material. The first metal die has a projection section and the second metal die has a penetration hole. The projection section is fitted to the penetration hole to assemble the first metal die and the second metal die. Communication holes formed in the second metal die communicate with raw material second feeding holes formed in the first metal die.

Method of producing honeycomb structural body

A double sump oil pan includes a separator made of plastic that partitions the interior of the oil pan into an inner sump and an outer sump, a plate, and an elastically deformable sealing member attached to the plate. The sealing member closely contacts the inner wall of the oil pan and seals the outer sump. The plate and the separator are fixed to each other.

Oil pan

A honeycomb structural body is made of cordierite ceramic and composed of partition walls and cells. A cell density is changed continuously or step by step from a central section to an outer peripheral section in a radial direction. The honeycomb structural body has a relationship of M1&#x3e;M2&#x3e;M3, and a relationship of K1&#x3c;K2. M1 is an average cell density of a first section formed from a center to not more than &#x2153; R from the center. M2 is an average cell density of a second section formed within a range from &#x2153; R to &#x2154; R. M3 is an average cell density of a third section formed of more than &#x2154; R from the center to an outer peripheral surface. K1 and K2 are average cell density change rates of the first and second sections, respectively. R is a radius of the honeycomb structural body.

Growing community of inventors

Kariya, Japan

Naohiro Hayashi