公开(公告)号：US20180175447A1

公开(公告)日：2018-06-21

申请号：US15735355

申请日：2016-07-01

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryoji KANNO ,  Satoshi HORI ,  Yuki KATO

IPC: H01M10/0562 ,  C01B33/32 ,  H01M10/0585 ,  H01M10/0525

Abstract: The problem of the present invention is to provide a sulfide solid electrolyte material with favorable reduction resistance. The present invention solves the problem by providing a sulfide solid electrolyte material having a peak at a position of 2θ=30.26°±1.00° in X-ray diffraction measurement using a CuKα ray, and having a composition of Li(4−x−4y)Si(1−x+y)P(x)S(4−2a−z)O(2a+z) (a=1−x+y, 0.65≤x≤0.75, −0.025≤y≤0.1, −0.2≤z≤0).

公开(公告)号：US20160149258A1

公开(公告)日：2016-05-26

申请号：US14896281

申请日：2014-05-29

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryoji KANNO ,  Masaaki HIRAYAMA ,  Yuki KATO ,  Takamasa OHTOMO ,  Hisatsugu YAMASAKI

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01B1/10 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M2220/30 ,  H01M2300/0068 ,  Y02T10/7011

Abstract: The present invention aims to provide a sulfide solid electrolyte material with favorable ion conductivity, in which charge and discharge efficiency may be inhibited from decreasing. The object is attained by providing a sulfide solid electrolyte material, including: a Li element; a P element; and a S element, characterized in that the material has a peak at a position of 2θ=30.21°±0.50° in X-ray diffraction measurement using a CuKα ray, and the sulfide solid electrolyte material does not substantially include a metallic element belonging to the third group to the sixteenth group.

Abstract translation: 本发明旨在提供一种具有良好的离子传导性的硫化物固体电解质材料，其中可以抑制充放电效率的降低。 本发明的目的是提供硫化物固体电解质材料，其包括：Li元素; 一个P元素; 和S元件，其特征在于，使用CuKα射线的X射线衍射测定中，该材料在2θ的位置具有峰值= 30.21°±0.50°，硫化物固体电解质材料基本上不包括属于 到第三组到第十六组。

公开(公告)号：US20150357673A1

公开(公告)日：2015-12-10

申请号：US14760344

申请日：2013-12-18

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryoji KANNO ,  Masaaki HIRAYAMA ,  Yuki KATO ,  Hisatsugu YAMASAKI

IPC: H01M10/0562 ,  H01M10/052

CPC classification number: H01M10/0562 ,  H01B1/10 ,  H01B1/122 ,  H01M4/62 ,  H01M10/052 ,  H01M2220/30 ,  H01M2300/0068 ,  Y02T10/7011

Abstract: The problem is to provide a sulfide solid electrolyte material with favorable Li ion conductivity in a low-temperature environment. The problem is overcome by providing a sulfide solid electrolyte material comprising an M1 element (such as an Li element and an Mg element), an M2 element (such as a Ge element and a P element) and a S element, wherein the sulfide solid electrolyte material has a peak at a position of 2θ=29.58°±0.50° in X-ray diffraction measurement using a CuKα ray, does not have a peak at a position of 2θ=27.33°±0.50° or slightly having the peak, and a substituted amount δ(%) of the divalent element in the M1 element is in such a range that the sulfide solid electrolyte material exhibits higher Li ion conductance at 0° C. than the case of δ=0.

Abstract translation: 问题在于提供在低温环境下具有良好的Li离子传导性的硫化物固体电解质材料。 通过提供包含M1元素（例如Li元素和Mg元素），M2元素（例如Ge元素和P元素）和S元素的硫化物固体电解质材料来克服该问题，其中硫化物固体 在使用CuKα射线的X射线衍射测定中，电解质材料在2θ= 29.58°±0.50°的位置处具有峰值，在2θ的位置处没有峰值; = 27.33°±0.50°或略高于峰值 ，并且M1元素中的二价元素的取代量δ（％）在使得硫化物固体电解质材料在0℃下表现出比δ= 0的情况下更高的Li离子传导的范围。

公开(公告)号：US20170155168A1

公开(公告)日：2017-06-01

申请号：US15319317

申请日：2015-06-08

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryoji KANNO ,  Masaaki HIRAYAMA ,  Kota SUZUKI ,  Satoshi HORI ,  Yuki KATO

IPC: H01M10/0562 ,  H01M10/0525 ,  C01B25/14

CPC classification number: H01M10/0562 ,  C01B17/22 ,  C01B25/14 ,  C01P2002/72 ,  C01P2006/40 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525 ,  H01M2300/0068 ,  Y02T10/7011

Abstract: A sulfide solid electrolyte material has favorable ion conductivity and resistance to reduction. The sulfide solid electrolyte material includes a peak at a position of 2θ=29.86°±1.00° in X-ray diffraction measurement using a CuKα ray, and a composition of Li2y+3PS4 (0.1≦y≦0.175).

公开(公告)号：US20160240886A1

公开(公告)日：2016-08-18

申请号：US15024989

申请日：2014-09-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hisatsugu YAMASAKI ,  Yuki KATO ,  Takamasa OHTOMO ,  Masatsugu KAWAKAMI

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01B1/10 ,  H01M10/0525 ,  H01M2300/0068

Abstract: A sulfide solid electrolyte material includes Li, K, Si, P and S elements; a peak at 2θ=29.58°±0.50° and not having a peak at a position of 2θ=27.33°±0.50° in X-ray diffraction measurement using a CuKα ray, or when a diffraction intensity at the peak of 2θ=29.58°±0.50° is regarded as IA and a diffraction intensity at the peak of 2θ=27.33°±0.50° is regarded as IB having a peak at the position of 2θ=27.33°±0.50°, a value of IB/IA is less than 1; a P element molar fraction (P/(Si+P)) to a Si element total and the P element satisfies 0.5≦P/(Si+P)≦0.7, and a K element molar fraction (K/(Li+K)) to a Li element total and the K element satisfies 0

Abstract translation: 硫化物固体电解质材料包括Li，K，Si，P和S元素; 在2θ= 29.58°±0.50°的峰，在使用CuKα射线的X射线衍射测定中在2θ= 27.33°±0.50°的位置处不具有峰，或者当峰的衍射强度为2θ= 29.58° ±0.50°被认为是IA，在2θ= 27.33°±0.50°的峰值处的衍射强度被认为是在2θ= 27.33°±0.50°的位置具有峰的IB，IB / IA的值小于 1; 相对于Si元素总和的P元素摩尔分数（P /（Si + P）），P元素满足0.5≤P/（Si + P）≤0.7，K元素摩尔分数（K /（Li + K） ）相对于Li元素总计，K元素满足0

公开(公告)号：US20160028109A1

公开(公告)日：2016-01-28

申请号：US14876379

申请日：2015-10-06

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takamasa OHTOMO ,  Koji KAWAMOTO ,  Shigenori HAMA ,  Yasushi TSUCHIDA ,  Yuki KATO

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M10/052 ,  H01M10/0525 ,  H01M2300/0065 ,  H01M2300/0068 ,  H01M2300/008 ,  Y02E60/122

Abstract: The main object of the present invention is to provide a sulfide solid electrolyte material with high Li ion conductivity. The present invention solves the problem by providing a sulfide solid electrolyte material comprising an ion conductor with an ortho-composition, and LiI, characterized in that the sulfide solid electrolyte material is glass with a glass transition point.

公开(公告)号：US20160064771A1

公开(公告)日：2016-03-03

申请号：US14783604

申请日：2014-04-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Mayuko OSAKI ,  Yuki KATO

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  C01B25/45 ,  C01B35/14 ,  H01B1/10 ,  H01B1/122 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/002 ,  H01M2300/0068

Abstract: A sulfide solid electrolyte material with favorable ion conductivity and high reduction resistance. The object is attained by providing sulfide solid electrolyte material comprising: Li element; Ge element; P element; and S element, wherein the sulfide solid electrolyte material peaks at a position of 2θ=29.58°±0.50° in X-ray diffraction measurement using CuKα ray, the sulfide solid electrolyte material does not peak at a position of 2θ=27.33°±0.50° in X-ray diffraction measurement using CuKα ray or when diffraction intensity at the peak of 2θ=29.58°±0.50° is regarded as IA and diffraction intensity at the peak of 2θ=27.33°±0.50° is regarded as IB, a value of IB/IA is less than 1.0, and part of the P element in a crystal phase peaking at the position of 2θ=29.58°±0.50° is substituted with a B element.

Abstract translation: 具有良好的离子传导性和高抗还原性的硫化物固体电解质材料。 本发明的目的是提供硫化物固体电解质材料，其包括：Li元素; Ge元素 P元素 和S元素，其中硫化物固体电解质材料在使用CuKα射线的X射线衍射测量中在2θ= 29.58°±0.50°的位置处峰值，硫化物固体电解质材料在2θ= 27.33°的位置处不峰值 使用CuKα射线的X射线衍射测定中的±0.50°，或者峰值为2θ时的衍射强度= 29.58°±0.50°的IA为1.0，峰值为2θ时的衍射强度= 27.33°±0.50°为 如图1B所示，IB / IA的值小于1.0，并且在2＆amp; t = 29.58°±0.50°的位置峰值的晶体相中的P元素的一部分被B元素取代。

公开(公告)号：US20150372345A1

公开(公告)日：2015-12-24

申请号：US14758712

申请日：2013-12-18

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuki KATO ,  Mayuko OSAKI

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01B1/10 ,  H01M4/38 ,  H01M4/485 ,  H01M4/587 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525 ,  H01M2300/0068 ,  H01M2300/0071

Abstract: Sulfide solid electrolyte material with favorable ion conductivity, wherein charge and discharge efficiency is inhibited from decreasing. Solves problem by providing a sulfide solid electrolyte material including a Li element, Si element, P element, S element and O element, having peak at position of 2θ=29.58°±0.50° in X-ray diffraction measurement using CuKα ray, wherein sulfide solid electrolyte material does not have peak at position of 2θ=27.33°±0.50° in X-ray diffraction measurement using CuKα ray, or in case of having peak at position of 2θ=27.33°±0.50°, value of IB/IA is 1 or less when diffraction intensity at peak of 2θ=29.58°±0.50° is regarded as IA and diffraction intensity at peak of 2θ=27.33°±0.50° is regarded as IB; and wherein molar fraction of O element to total of S element and O element is larger than 0.2.

Abstract translation: 具有良好的离子传导性的硫化物固体电解质材料，其中抑制充放电效率的降低。 通过在使用CuKα射线的X射线衍射测定中提供包含Li元素，Si元素，P元素，S元素和O元素的硫化物固体电解质材料，其在2θ的位置具有峰值= 29.58°±0.50°，其中 硫化物固体电解质材料在使用CuKα射线的X射线衍射测定中，在2＆位置的位置不具有峰值; = 27.33°±0.50°，或者在位置为2的情况下= 27.33°±0.50°，IB值 当IA的峰值处的衍射强度= 29.58°±0.50°时，IA值为1以下，2峰值时的衍射强度= 27.33°±0.50°为IB; 并且其中O元素与S元素和O元素总量的摩尔分数大于0.2。

公开(公告)号：US20160197374A1

公开(公告)日：2016-07-07

申请号：US14911662

申请日：2014-09-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuki KATO

IPC: H01M10/0562 ,  H01M10/052

CPC classification number: H01M10/0562 ,  C01B17/22 ,  H01B1/10 ,  H01M10/052 ,  H01M2300/0065 ,  H01M2300/0068 ,  Y02T10/7011

Abstract: A sulfide solid electrolyte material with favorable reduction-resistance has a second structural part formed to cover a plurality of first structural parts, a first ion conductor composing the first structural part has a specific crystal phase with favorable ion conductivity, and a weight ratio y of an Me element to a P element in the second structural part is less than 0.72.

Abstract translation: 具有良好的还原性的硫化物固体电解质材料具有形成为覆盖多个第一结构部分的第二结构部分，构成第一结构部分的第一离子导体具有良好的离子传导性的特定结晶相，并且重量比y 第二结构部分中的P元素的Me元素小于0.72。

公开(公告)号：US20160043589A1

公开(公告)日：2016-02-11

申请号：US14808602

申请日：2015-07-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuki KATO ,  Takamasa OHTOMO

IPC: H02J7/00 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/46

CPC classification number: H02J7/0063 ,  H01M4/13 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/058 ,  H01M10/44 ,  H01M10/46 ,  H01M2004/021 ,  H01M2300/0068 ,  Y02T10/7011

Abstract: Provided is an all solid state battery system with a high energy density. The all solid state battery system comprises an all solid state battery, and a discharging control unit that controls discharging of the all solid state battery, a cathode active material layer contains a cathode active material particle, and a sulfide solid electrolyte particle, and a ratio (T/t) of an actual thickness “T” of the cathode active material layer to an effective thickness “t” of the cathode active material layer which is calculated by the following Expression satisfies a relationship of 0.01≦T/t≦0.15; t=V/i×κ′ (in which, V represents an operation voltage width (V), i represents a current density (mA/cm2) during discharging, and κ′ represents effective Li ion conductivity (S/cm) of the cathode active material layer)

Abstract translation: 提供了具有高能量密度的全固态电池系统。 全固态电池系统包括全固态电池和控制全固态电池放电的放电控制单元，阴极活性材料层含有阴极活性材料颗粒和硫化物固体电解质颗粒， 阴极活性物质层的实际厚度“T”与通过下式计算出的阴极活性物质层的有效厚度“t”的比（T / t）满足0.01＆lt; nlE; T / t＆nlE; 0.15 ; t = V / i×＆kgr;'（其中，V表示工作电压宽度（V），i表示放电期间的电流密度（mA / cm 2），＆kgr;'表示有效的Li离子传导率（S / cm） 的正极活性物质层）