公开(公告)号：US20210057781A1

公开(公告)日：2021-02-25

申请号：US16991963

申请日：2020-08-12

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Sachie TOMIZAWA ,  Daigo ITO ,  Chie KAWAMURA

IPC: H01M10/0585 ,  H01M10/0562 ,  H01M4/62

Abstract: An all-solid battery includes: a solid electrolyte layer mainly composed of oxide-based solid electrolyte; a first electrode layer formed on a first principal face of the solid electrolyte layer, the first electrode layer containing an active material; a second electrode layer formed on a second principal face of the solid electrolyte layer, the second electrode layer containing another active material, wherein no collector layer that is in contact with the second electrode layer is provided in a direction in which the solid electrolyte layer, the first electrode layer, and the second electrode layer are stacked, and the second electrode layer includes board-shaped carbon.

公开(公告)号：US20200313230A1

公开(公告)日：2020-10-01

申请号：US16780414

申请日：2020-02-03

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Daigo ITO ,  Takato SATO ,  Sachie TOMIZAWA ,  Chie KAWAMURA ,  Masashi SEKIGUCHI

IPC: H01M10/0562 ,  H01M4/80 ,  H01M4/62

Abstract: An all-solid battery includes: a multilayer chip having a substantially rectangular parallelepiped shape and including solid electrolyte layers and electrodes alternately stacked, the electrodes being alternately exposed to two edge faces facing each other of the multilayer chip, wherein cover layers are provided between two faces, which face in a stacking direction of the solid electrolyte layers and the electrodes, of four faces other than the two edge faces of the multilayer chip and a cell reaction region where two adjacent electrodes exposed to different edge faces face each other across the solid electrolyte layer, and an active material layer containing an electrode active material is provided between the cover layers and the cell reaction region, no cell reaction occurring between the active material layer and an outermost electrode in the cell reaction region, the solid electrolyte layer being located between the active material layer and the cell reaction region.

公开(公告)号：US20200168919A1

公开(公告)日：2020-05-28

申请号：US16684394

申请日：2019-11-14

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Xinyu LI ,  Chie KAWAMURA

IPC: H01M8/0258 ,  H01M8/1246 ,  H01M8/0206 ,  H01M8/0276 ,  H01M8/0282 ,  H01M8/2425

Abstract: A fuel cell includes: a solid oxide electrolyte layer that has oxygen ion conductivity; an electrode layer that is provided on the solid oxide electrolyte layer; a separator that is provided on the electrode layer and is made of a metal material; and a sealing member that is provided from a circumference region of the solid oxide electrolyte layer to a circumference region of the dense metal layer, wherein the electrode layer, the separator and the sealing member demarcate at least a part of a gas passage, wherein at least a part of the sealing member is a mixed layer of a ceramic and a metal.

公开(公告)号：US20200168917A1

公开(公告)日：2020-05-28

申请号：US16684454

申请日：2019-11-14

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Xinyu LI ,  Chie KAWAMURA

IPC: H01M8/0232 ,  H01M8/0258 ,  H01M8/2425

Abstract: A fuel cell stack includes: a first fuel cell and a second fuel cell, each of which has a structure in which a solid oxide electrolyte layer having oxygen ion conductivity is provided between two electrode layers; and an interconnector that is provided between the first fuel cell and the second fuel cell and has a separator made of a metal material, wherein the interconnector has a first metal porous part and a first gas passage on a first face of the separator on a side of the first fuel cell, wherein the interconnector has a second metal porous part and a second gas passage on a second face of the separator on a side of the second fuel cell.

公开(公告)号：US20190131654A1

公开(公告)日：2019-05-02

申请号：US16177204

申请日：2018-10-31

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Daigo ITO ,  Takato SATOH ,  Sachie TOMIZAWA ,  Chie KAWAMURA

IPC: H01M10/0562 ,  H01M2/04

Abstract: An all solid battery includes: a solid electrolyte layer; a positive electrode layer provided on a first face of the solid electrolyte layer, a part of the positive electrode layer extending to a first edge portion of the solid electrolyte layer; a first margin layer that is provided on an area of the solid electrolyte layer where the positive electrode is not provided; a negative electrolyte layer provided on a second face of the solid electrolyte layer, a part of the negative electrolyte layer extending to a second edge portion of the solid electrolyte layer; a second margin layer that is provided on an area of the second face of the solid electrolyte layer where the negative electrolyte layer is not provided; wherein a main component of the first margin layer and the second margin layer is solid electrolyte of which ionic conductivity is lower than that of the solid electrolyte layer.

公开(公告)号：US20160189865A1

公开(公告)日：2016-06-30

申请号：US14945388

申请日：2015-11-18

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Chie KAWAMURA ,  Tetsuo SHIMURA ,  Minoru RYU ,  Koichiro MORITA ,  Yukihiro KONISHI ,  Yoshiki IWAZAKI

IPC: H01G4/12 ,  H01G4/012 ,  H01G4/30

CPC classification number: H01G4/1227 ,  C04B35/4682 ,  C04B2235/3224 ,  C04B2235/3239 ,  C04B2235/3251 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3418 ,  C04B2235/5409 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/6025 ,  C04B2235/785 ,  H01G4/012 ,  H01G4/12 ,  H01G4/30

Abstract: A multilayer ceramic capacitor has a laminate including dielectric layers laminated alternately with internal electrode layers of different polarities, wherein the dielectric layer contains ceramic grains having Ba, Ti, and X (wherein X represents at least one type of element selected from the group consisting of Mo, Ta, Nb, and W) and a variation in the concentration distribution of X above in the ceramic grain is within ±5%. The multilayer ceramic capacitor can offer excellent service life characteristics even when the thickness of the dielectric layer is 0.8 μm or less, as well as excellent bias characteristics.

Abstract translation: 多层陶瓷电容器具有层叠体，其具有与不同极性的内部电极层交替层叠的电介质层，其中，所述电介质层含有具有Ba，Ti和X的陶瓷颗粒（其中，X表示选自由以下组成的组中的至少一种元素： Mo，Ta，Nb和W），并且陶瓷晶粒中X的浓度分布的变化在±5％以内。 即使介电层的厚度为0.8μm以下，多层陶瓷电容器也能够提供优异的使用寿命特性，以及良好的偏置特性。

公开(公告)号：US20130343983A1

公开(公告)日：2013-12-26

申请号：US13688041

申请日：2012-11-28

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Daigo ITO ,  Chie KAWAMURA ,  Masaki MOCHIGI ,  Toshimasa SUZUKI

IPC: H01M4/485

CPC classification number: H01M4/485 ,  C01G23/005 ,  C01P2006/12

Abstract: A lithium-titanium complex oxide whose total water generation amount and total carbon dioxide generation amount measured by thermal decomposition GC-MS are preferably 1500 wt ppm or less and 2000 wt ppm or less, respectively, is obtained by subjecting a mixture of titanium compound and lithium compound to a heat treatment at 600° C. or above, cooling the obtained reaction product to 50° C. or below, and then subjecting the cooled reaction product to a reheat treatment involving heating to the maximum temperature of 300 to 700° C. and then cooling, wherein the dew point of the ambience of the reheat treatment is controlled at −30° C. or below at a temperature of 200° C. or above.

Abstract translation: 通过热分解GC-MS测定的总发热量和总二氧化碳产生量分别优选为1500重量ppm以下且2000重量ppm以下的锂钛复合氧化物，通过使钛化合物和 锂化合物在600℃以上进行热处理，将得到的反应产物冷却至50℃以下，然后对冷却后的反应产物进行再加热处理，包括加热至最高温度为300〜700℃ 然后冷却，其中再热处理的环境的露点在温度为200℃以上的情况下控制在-30℃以下。

公开(公告)号：US20130095387A1

公开(公告)日：2013-04-18

申请号：US13625681

申请日：2012-09-24

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Chie KAWAMURA ,  Masaki MOCHIGI ,  Daigo ITO ,  Akitoshi WAGAWA ,  Yoichiro OGATA ,  Toshiyuki OCHIAI ,  Isao TAKAHASHI ,  Toshimasa SUZUKI

IPC: H01M4/485

CPC classification number: H01M4/485 ,  C01G23/005 ,  C01P2002/32 ,  C01P2002/52 ,  C01P2002/74 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C04B35/462 ,  C04B35/6261 ,  C04B35/62625 ,  C04B35/62655 ,  C04B2235/3201 ,  C04B2235/3251 ,  C04B2235/34 ,  C04B2235/402 ,  C04B2235/42 ,  C04B2235/422 ,  C04B2235/424 ,  C04B2235/442 ,  C04B2235/447 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/549 ,  C04B2235/72 ,  C04B2235/727 ,  C04B2235/80 ,  C04B2235/963 ,  H01M10/0525

Abstract: A ceramic material offering both high capacity and high rate characteristics includes, as a main constituent, titanium oxide, and 0.004 to 0.249 percent by mass of potassium, 0.013 to 0.240 percent by mass of phosphorous and 0.021 to 1.049 percent by mass of niobium, has a spinel structure, and preferably has a peak intensity measured on the Li27.84Ti36.816Nb1.344O90 (310) plane by powder X-ray diffraction corresponding to 3/10 of the peak intensity of the Li4Ti5O12 (111) plane or less, or preferably has a maximum primary particle size of 2 μm or less. The ceramic material is used in an electrode which is used in a lithium ion secondary battery.

Abstract translation: 提供高容量和高速率特性的陶瓷材料包括氧化钛作为主要成分，0.004至0.249质量％的钾，0.013至0.240质量％的磷和0.021至1.049质量％的铌，具有 尖晶石结构，并且优选具有通过对应于Li 4 Ti 5 O 12（111）面的峰强度的3/10以下的粉末X射线衍射而在Li 27.84 Ti 36.8 16 Nb 1.334 O 90（310）面上测量的峰强度，或 优选具有2μm以下的最大一次粒径。 陶瓷材料用于锂离子二次电池中使用的电极中。

公开(公告)号：US20240429456A1

公开(公告)日：2024-12-26

申请号：US18692591

申请日：2022-08-17

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Chie KAWAMURA ,  Maki INOUE

IPC: H01M10/0585

Abstract: An all solid battery includes a multilayer body in which each of a plurality of electrode layers and each of a plurality of solid electrolyte layers are alternately stacked, wherein at least one of the plurality of electrode layers includes an end portion, a first portion in which a film thickness thereof increases at a first increase rate of 0.15 or more from the end portion to a first point, and a second portion in which the film thickness increases at a second increase rate of 0.1 or less from the first point to a second point, wherein the film thickness of the at least one of the plurality of electrode layers at the second point is a local maximum thickness and is 1.5 times or less as an average film thickness of the at least one of the plurality of electrode layers.

公开(公告)号：US20240332733A1

公开(公告)日：2024-10-03

申请号：US18604883

申请日：2024-03-14

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Chie KAWAMURA ,  Hajime HASEGAWA

IPC: H01M50/431 ,  H01M4/62 ,  H01M10/0562 ,  H01M50/449

CPC classification number: H01M50/431 ,  H01M4/625 ,  H01M10/0562 ,  H01M50/449

Abstract: An all solid battery includes a solid electrolyte layer, and electrode layers that are provided on both main faces of the solid electrolyte layer and include an electrode active material and a fibrous conductive auxiliary agent. In cross sections of the electrode layers, an average diameter of the conductive auxiliary agent is 2 nm or more and 150 nm or less, an area ratio occupied by the conductive auxiliary agent is 0.5% or more and 5.0% or less, and an area ratio occupied by the electrode active material is 28% or more and less than 80%. A thickness of the solid electrolyte layer is 5 μm or more and 20 μm or less.