公开(公告)号：US20170244097A1

公开(公告)日：2017-08-24

申请号：US15424459

申请日：2017-02-03

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Norihiro OSE ,  Hikaru ASO ,  Keisuke OMORI ,  Hajime HASEGAWA ,  Mitsutoshi OTAKI ,  Hideyuki KOGA

IPC: H01M4/36 ,  H01M4/58 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/0525 ,  H01M4/136

CPC classification number: H01M4/364 ,  H01M4/0404 ,  H01M4/13 ,  H01M4/136 ,  H01M4/139 ,  H01M4/5815 ,  H01M4/621 ,  H01M4/624 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0585 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0068

Abstract: A method is provided where an anode of an all-solid-state lithium ion secondary battery is easily doped with lithium and to provide a small resistance at a low battery capacity. The method includes a manufacturing method of a cathode including mixing at least a conductive assistant (C1) and a sulfide solid electrolyte (E1) to obtain a mixture; and mixing at least one cathode active material, a solid electrolyte (E2) and the mixture obtained from the first step to obtain a cathode mixture, wherein an amount of energy added to the sulfide solid electrolyte (E1) is larger than an amount of energy added to the solid electrolyte (E2), and the mixture is a material that releases lithium ions at a potential lower than a potential at which the cathode active material releases and occludes lithium ions. Manufacturing methods for a cathode and an all-solid-state lithium ion secondary battery including the cathode mixture are also disclosed.

公开(公告)号：US20180323631A1

公开(公告)日：2018-11-08

申请号：US16036256

申请日：2018-07-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Mitsutoshi OTAKI ,  Keisuke OMORI ,  Norihiro OSE ,  Hajime HASEGAWA ,  Kengo HAGA

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/42 ,  H01M10/0585 ,  H01M10/0562 ,  H01M10/052 ,  H01M4/62

CPC classification number: H02J7/0068 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/386 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/425 ,  H01M10/44 ,  H01M10/446 ,  H01M2004/027 ,  H01M2004/028

Abstract: An all-solid-state battery system comprising an all-solid-state battery comprising a positive electrode active material layer, a solid electrolyte layer, and a negative electrode active material layer, and a control device configured to control a charge-discharge voltage during use of the all-solid-state battery. The negative electrode active material layer includes alloy negative electrode active material particles. The amorphization degree of the alloy negative electrode active material particles is in the range of 27.8% to 82.8% and a ratio Z/W is in the range of 0.32 to 0.60, where Z is a controlled discharge capacity of the all-solid-state battery, and W is a theoretical capacity of the alloy negative electrode active material particles×a total weight of the alloy negative electrode active material particles×the amorphization degree.

公开(公告)号：US20170077732A1

公开(公告)日：2017-03-16

申请号：US15265372

申请日：2016-09-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Mitsutoshi OTAKI ,  Keisuke OMORI ,  Norihiro OSE ,  Hajime HASEGAWA ,  Kengo HAGA

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/058 ,  H01M4/38 ,  H01M4/131 ,  H01M4/134 ,  H01M10/0525 ,  H01M4/485

CPC classification number: H02J7/0068 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/386 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/425 ,  H01M10/44 ,  H01M10/446 ,  H01M2004/027 ,  H01M2004/028

Abstract: An all-solid-state battery system comprising an all-solid-state battery comprising a positive electrode active material layer, a solid electrolyte layer, and a negative electrode active material layer, and a control device configured to control a charge-discharge voltage during use of the all-solid-state battery. The negative electrode active material layer includes alloy negative electrode active material particles. The amorphization degree of the alloy negative electrode active material particles is in the range of 27.8% to 82.8% and a ratio Z/W is in the range of 0.32 to 0.60, where Z is a controlled discharge capacity of the all-solid-state battery, and W is a theoretical capacity of the alloy negative electrode active material particles×a total weight of the alloy negative electrode active material particles×the amorphization degree.

Abstract translation: 一种全固态电池系统，包括具有正极活性物质层，固体电解质层和负极活性物质层的全固态电池，以及控制装置，其被配置为控制充放电电压 使用全固态电池。 负极活性物质层包括合金负极活性物质粒子。 合金负极活性物质粒子的非晶化度在27.8％〜82.8％的范围内，Z / W在0.32〜0.60的范围内，Z为全固态的受控放电容量 电池，W是合金负极活性物质粒子的理论容量×合金负极活性物质粒子的总重量×非晶化度。

公开(公告)号：US20170200972A1

公开(公告)日：2017-07-13

申请号：US15377418

申请日：2016-12-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hajime HASEGAWA ,  Norihiro OSE ,  Kengo HAGA ,  Mitsutoshi OTAKI ,  Keisuke OMORI ,  Takeshi TOJIGAMORI

IPC: H01M10/0562 ,  H01M10/44 ,  H01M6/18

CPC classification number: H01M10/0562 ,  H01M6/18 ,  H01M10/052 ,  H01M10/446 ,  H01M2300/0068

Abstract: A method for producing a sulfide all-solid-state battery with a high capacity retention rate, and a sulfide all-solid-state battery with a high capacity retention rate. The method for producing a sulfide all-solid-state battery may comprise forming a sulfide all-solid-state battery, initially charging the sulfide all-solid-state battery after the forming of the sulfide all-solid-state battery, and exposing the sulfide all-solid-state battery to an oxygen-containing gas atmosphere at at least any one of a time of the initially charging of the sulfide all-solid-state battery and a time after the initially charging of the sulfide all-solid-state battery.

公开(公告)号：US20160380301A1

公开(公告)日：2016-12-29

申请号：US15178250

申请日：2016-06-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daichi KOSAKA ,  Norihiro OSE ,  Kengo HAGA ,  Tomoya SUZUKI ,  Hajime HASEGAWA ,  Keisuke OMORI

IPC: H01M10/04 ,  H01M10/0525

CPC classification number: H01M10/0468 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2220/20 ,  Y02E60/122 ,  Y02P70/54

Abstract: 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.

Abstract translation: 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）。