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公开(公告)号：US20210066713A1
公开(公告)日：2021-03-04
申请号：US17002304
申请日：2020-08-25
发明人： Masanori HARATA , Tatsuya EGUCHI , Masakazu MURASE , Jun YOSHIDA , Kazuhiro SUZUKI , Daichi KOSAKA , Shinji NAKANISHI
IPC分类号： H01M4/38 , H01M10/0525 , C22C24/00 , C01B33/02
摘要： Provided is a negative electrode active material that contains silicon clathrate II and that is suitable for a negative electrode of a lithium ion secondary battery. The negative electrode active material includes a silicon material in which silicon clathrate II represented by composition formula NaxSi136 (0≤x≤10) is contained and a volume of a pore having a diameter of not greater than 100 nm is not less than 0.025 cm3/g.
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公开(公告)号：US20210066714A1
公开(公告)日：2021-03-04
申请号：US17002408
申请日：2020-08-25
IPC分类号： H01M4/38 , H01M10/0525 , H01M10/058 , C22C24/00 , C01B33/037
摘要： Provided is a novel production method for producing silicon clathrate II. In the production method for producing silicon clathrate II, in a reaction system in which a Na—Si alloy containing Na and Si and an Na getter agent coexist so as not to be in contact with each other, the Na—Si alloy is heated and Na evaporated from the Na—Si alloy is thus caused to react with the Na getter agent to reduce an amount of Na in the Na—Si alloy.
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公开(公告)号：US20200176768A1
公开(公告)日：2020-06-04
申请号：US16667982
申请日：2019-10-30
发明人： Daichi KOSAKA , Jun YOSHIDA , Tetsuya WASEDA , Takamasa OTOMO
IPC分类号： H01M4/38 , H01M10/0525
摘要： A main object of the present disclosure is to provide an active material whose volume variation due to charge and discharge is small. The present disclosure achieves the object by providing an active material comprising a primary particle including at least one crystal phase of a Type I silicon clathrate and a Type II silicon clathrate, and the primary particle includes a void inside thereof.
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公开(公告)号：US20190221843A1
公开(公告)日：2019-07-18
申请号：US16195279
申请日：2018-11-19
发明人： Daichi KOSAKA , Jun YOSHIDA
IPC分类号： H01M4/505 , H01M10/0585 , H01M4/36 , H01M10/0562 , H01M4/525 , H01M4/62 , H01M4/1391 , H01M4/04
CPC分类号： H01M4/505 , H01M4/0402 , H01M4/0404 , H01M4/1391 , H01M4/366 , H01M4/525 , H01M4/62 , H01M10/052 , H01M10/0562 , H01M10/0585 , H01M10/4235 , H01M2004/028 , H01M2300/0068
摘要： When a layered rock-salt type cathode active material and a sulfide solid electrolyte are mixed to be a cathode mixture, and an all solid-state battery is obtained using this mixture, oxygen is released from the cathode active material when the battery is charged, and the sulfide solid electrolyte is oxidized, increasing the battery internal resistance. To increase the concentration of cobalt inside the active material, and at the same time to lower the concentration of cobalt of the surface of the cathode active material, to suppress oxygen release in charging, specifically, a cathode mixture includes: a cathode active material; and a sulfide solid electrolyte, wherein the cathode active material has a layered rock-salt crystal phase, and is made of a composite oxide containing Li, Ni, Co, and Mn, and the concentration of cobalt inside the cathode active material is higher than that of a surface of the cathode active material.
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公开(公告)号：US20190181432A1
公开(公告)日：2019-06-13
申请号：US16205910
申请日：2018-11-30
发明人： Yuhki YUI , Daichi KOSAKA , Jun YOSHIDA
IPC分类号： H01M4/36 , H01M10/0585 , H01M10/0562 , H01M4/485
摘要： An object of the present disclosure is to provide a cathode mixture with high energy density per volume. The present disclosure achieves the object by providing a cathode mixture to be used in an all solid state battery, the cathode mixture comprising: a first cathode active material, a second cathode active material, and a sulfide solid electrolyte; and a ratio of an average particle diameter of the first cathode active material to an average particle diameter of the second cathode active material is 2.0 or more and 4.3 or less.
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公开(公告)号：US20160380301A1
公开(公告)日：2016-12-29
申请号：US15178250
申请日：2016-06-09
发明人： Daichi KOSAKA , Norihiro OSE , Kengo HAGA , Tomoya SUZUKI , Hajime HASEGAWA , Keisuke OMORI
IPC分类号： H01M10/04 , H01M10/0525
CPC分类号： H01M10/0468 , H01M10/04 , H01M10/0525 , H01M10/0562 , H01M2220/20 , Y02E60/122 , Y02P70/54
摘要： An all-solid battery having stacked therein, in order, a positive electrode laminate, an intermediate solid electrolyte layer, and a negative electrode laminate is manufactured by a first pressing step (i) of applying pressure to the positive electrode laminate, a second pressing step (ii) of applying pressure to the negative electrode laminate, and a third pressing step (iii) of applying pressure to the positive electrode laminate, the intermediate solid electrolyte layer, and the negative electrode laminate.
摘要翻译： 通过对正极层叠体施加压力的第一加压工序（i），制造正极电极层叠体，中间固体电解质层和负极层叠体，依次层压的全固体电池，第二次压制 对负极层叠体施加压力的工序（ii），向正极层叠体，中间固体电解质层和负极层叠体施加压力的第三加压工序（iii）。
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公开(公告)号：US20200020929A1
公开(公告)日：2020-01-16
申请号：US16504210
申请日：2019-07-05
发明人： Jun YOSHIDA , Daichi KOSAKA , Takamasa OTOMO , Tetsuya WASEDA , Hideyuki NAKANO
IPC分类号： H01M4/134 , H01M10/0525 , H01M10/0562 , H01M10/44 , H01M4/131 , H01M4/38 , H01M4/62 , H01M4/1395
摘要： A main object of the present disclosure is to provide a novel active material whose volume variation due to charge/discharge is small. The present disclosure achieves the object by providing an active material having a composition represented by NaxMySi46, wherein M is a metal element other than Na, x and y satisfy 0
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8.发明申请公开(公告)号：US20150270585A1
公开(公告)日：2015-09-24
申请号：US14661541
申请日：2015-03-18
发明人： Tomoharu SASAOKA , Norihiro OSE , Hajime HASEGAWA , Kazuhito KATO , Kengo HAGA , Daichi KOSAKA
CPC分类号： H01M10/0413 , H01M2/1077 , H01M10/0468 , H01M10/052 , H01M10/0562 , H01M10/0585 , H01M2220/20 , H01M2300/0065 , Y02E60/122 , Y02P70/54 , Y10T29/49108
摘要： A solid-state battery comprising a stack including at least one unit cell including a positive electrode layer including a positive electrode active material, a negative electrode layer including a negative electrode active material, and a solid electrolyte layer laminated between the positive and negative electrode layers, and an outer covering accommodating the stack, wherein the solid-state battery further including a pressure receiving member provided on at least a part of a periphery of the outer covering, and wherein the pressure receiving member has a thickness of less than a total thickness of the stack and the outer covering in a stacking direction of the unit cell.
摘要翻译： 一种固体电池，包括：包括至少一个单元电池的堆叠体，所述单元电池包括正极活性物质的正极层，负极活性物质的负极层和层叠在正极层和负极层之间的固体电解质层 以及容纳所述叠层的外壳，其特征在于，所述固态电池还包括设置在所述外覆盖件的周边的至少一部分上的受压构件，并且其中所述受压构件的厚度小于总厚度 和堆叠方向上的外覆盖层。
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公开(公告)号：US20150180076A1
公开(公告)日：2015-06-25
申请号：US14557711
申请日：2014-12-02
发明人： Hajime HASEGAWA , Norihiro OSE , Tomoharu SASAOKA , Kazuhito KATO , Kengo HAGA , Daichi KOSAKA
CPC分类号： H01M10/0468 , H01M10/052 , H01M10/0562 , H01M10/0585 , H01M10/48 , Y02E60/122 , Y02P70/54 , Y02T10/7011 , Y10T29/49004 , Y10T29/49108
摘要： A manufacturing method of an all-solid battery includes fabricating a single battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer arranged between the positive electrode layer and the negative electrode layer; fabricating a plurality of battery packs including the plurality of single batteries; confining a plurality of battery packs by an equal confining pressure; measuring the electrical characteristics of the plurality of confined battery packs; determining the battery pack whose measured electrical characteristics are the worst of the plurality of battery packs; reducing the confining pressures of the other battery packs so that the electrical characteristics of the other battery packs are equal to that of the battery pack whose electrical characteristics have been determined to be the worst; and electrically connecting in parallel the battery packs.
摘要翻译： 全固体电池的制造方法包括制造包括正电极层，负极层和布置在正极层和负极层之间的固体电解质层的单电池; 制造包括所述多个单电池的多个电池组; 以相等的围压限制多个电池组; 测量所述多个限制电池组的电特性; 确定其测量的电特性是所述多个电池组中最差的电池组; 降低其他电池组的限制压力，使得其他电池组的电气特性与电气特性被确定为最差的电池组的电气特性相同; 并且电连接并联电池组。
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公开(公告)号：US20150134172A1
公开(公告)日：2015-05-14
申请号：US14534723
申请日：2014-11-06
发明人： Norihiro OSE , Tomoharu SASAOKA , Hajime HASEGAWA , Kazuhito KATO , Kengo HAGA , Daichi KOSAKA
CPC分类号： B60L11/1851 , B60L7/10 , B60L11/1809 , B60L11/1879 , B60L2240/68 , B60L2240/70 , H01M10/0481 , H01M10/052 , H01M10/0562 , H01M10/0565 , H01M10/445 , H01M2220/20 , Y02E60/122 , Y02T10/7005 , Y02T10/705 , Y02T10/7072 , Y02T10/7291 , Y02T90/14 , Y02T90/16 , Y02T90/161
摘要： An objective of the present invention is to provide a charging system, capable of increasing the rapid charging capacity of an on-vehicle all-solid-state battery, and reducing the effect of confining pressure on the all-solid-state battery. This is achieved by a charging system for an all-solid-state battery to be mounted in a vehicle, the charging system comprising: a charging section that charges an all-solid-state battery, a pressing section that applies confining pressure to the all-solid-state battery, and a pressure control section that controls the confining pressure, wherein the pressure control section directs the pressing section so that the confining pressure during charging is higher than the confining pressure during discharging.
摘要翻译： 本发明的目的是提供一种能够增加车载全固态电池的快速充电能力并减少限制全固态电池的压力的充电系统。 这通过用于安装在车辆中的全固态电池的充电系统来实现，该充电系统包括：对全固态电池充电的充电部分，对所有固态电池施加限制压力的按压部分 固体电池和控制所述围压的压力控制部，其中，所述压力控制部引导所述按压部，使得充电期间的约束压力高于放电期间的约束压力。
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