公开(公告)号：US20200381774A1

公开(公告)日：2020-12-03

申请号：US16970699

申请日：2019-03-19

Applicant: TDK CORPORATION

Inventor： Tetsuya UENO ,  Gakuho ISOMICHI ,  Taisuke MASUKO

IPC: H01M10/0562 ,  H01M4/64

Abstract: An all-solid-state battery includes a positive electrode layer including a positive electrode current collector layer and a positive electrode active material layer provided on the positive electrode current collector layer, a negative electrode layer including a negative electrode current collector layer and a negative electrode active material layer provided on the negative electrode current collector layer, and a solid electrolyte layer which is arranged between the positive electrode layer and the negative electrode layer and contains a solid electrolyte, wherein the all-solid-state battery includes a power storage unit in which the positive electrode layer and the negative electrode layer face each other with the solid electrolyte layer therebetween and an exterior unit, and wherein the exterior unit has an ion conductivity of 10−2 S/cm or less.

公开(公告)号：US20200067133A1

公开(公告)日：2020-02-27

申请号：US16491454

申请日：2018-03-29

Applicant: TDK CORPORATION

Inventor： Hiroshi SATO ,  Keiko TAKEUCHI ,  Masayuki MUROI ,  Taisuke MASUKO ,  Hisaji OYAKE ,  Tomohiro YANO

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M2/30 ,  H01M4/136 ,  H01M4/58 ,  H01M4/64 ,  H01M10/0585

Abstract: An all-solid-state lithium ion secondary battery including: a layered body in which a plurality of electrode layers are laminated with a solid electrolyte layer therebetween, a current collector layer and an active material layer being laminated in each of the electrode layers; and a terminal electrode that is formed such that the terminal electrode is in contact with a side surface of the layered body from which end surfaces of the electrode layers are exposed, in which the terminal electrode contains Cu, and Cu-containing regions are formed at grain boundaries that are present near the terminal electrode among grain boundaries of particles that form the active material layers and the solid electrolyte layer.

公开(公告)号：US20240313259A1

公开(公告)日：2024-09-19

申请号：US18272504

申请日：2022-02-10

Applicant: TDK CORPORATION

Inventor： Taisuke MASUKO ,  Tomoko NAKAMURA ,  Keiko TAKEUCHI

IPC: H01M10/0562 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M4/0407 ,  H01M10/0525 ,  H01M2300/0068

Abstract: A solid electrolyte layer contains a first compound represented by LiaM2(PO4)3 . . . (1) and a second compound represented by M′P2O7 . . . (2), and an abundance ratio of the second compound is 0.5 volume % or more and less than 10 volume %.

公开(公告)号：US20220140386A1

公开(公告)日：2022-05-05

申请号：US17431549

申请日：2020-03-06

Applicant: TDK CORPORATION

Inventor： Taisuke MASUKO ,  Kazumasa TANAKA

IPC: H01M10/0562 ,  H01M10/0585

Abstract: A solid-state secondary battery includes: a positive electrode layer; a negative electrode layer; a solid-state electrolyte layer; and side margin layers arranged side by side on outer circumferences of the positive electrode layer and the negative electrode layer. The solid-state secondary battery is made of a laminated body obtained by alternately laminating the positive electrode layer of which the side margin layer arranged on the outer circumference thereof and the negative electrode layer of which the side margin layer arranged on the outer circumference thereof with the solid-state electrolyte layer arranged therebetween, and when the porosity of the side margin layers is defined as φm and the porosity of the solid-state electrolyte layer is defined as φe, the porosity ratio (φm/φe) satisfies the following Expression (1); 0.5≤(φm/φe)

公开(公告)号：US20160268630A1

公开(公告)日：2016-09-15

申请号：US15063989

申请日：2016-03-08

Applicant: TDK CORPORATION

Inventor： Takeo TSUKADA ,  Teiichi TANAKA ,  Hirofumi KAKUTA ,  Taisuke MASUKO

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2300/0077

Abstract: A Li-ion conductive oxide ceramic material including a garnet-type or similar crystal structure according to an aspect of the present disclosure contains Li, La, Zr, and 0, the material further containing one or more elements selected from the group consisting of rare-earth elements, A Li-ion conductive oxide ceramic material including a garnet-type or similar crystal structure according to the other aspects of the present disclosure is represented by the following composition formula (I) Li7+xLa3Zr2-xAxO12 where A is one or more elements selected from the group consisting of rare-earth elements, and x is a number such that 0

Abstract translation: 根据本公开的一个方面，包括石榴石型或类似晶体结构的锂离子传导性氧化物陶瓷材料包含Li，La，Zr和0，所述材料还包含一种或多种选自稀有金属的元素 根据本公开的其他方面的包括石榴石型或类似晶体结构的锂离子传导性氧化物陶瓷材料由以下组成式（I）Li7 + xLa3Zr2-xAxO12表示，其中A是一个或 选自由稀土元素组成的组中的更多元素，x是0

公开(公告)号：US20200031670A1

公开(公告)日：2020-01-30

申请号：US16337173

申请日：2017-09-25

Applicant: TDK CORPORATION

Inventor： Hiroshi SATO ,  Masahiro OISHI ,  Taisuke MASUKO ,  Tomohiro YANO ,  Keiko TAKEUCHI

IPC: C01B25/45 ,  H01M10/0562

Abstract: A lithium ion-conducting solid electrolyte containing at least one metallic element selected from the group made of Zn, Ca, Mg, and Cu within a range of 0.01% by mass to 3.0% by mass, and a solid-state lithium ion rechargeable battery containing this lithium ion-conducting solid electrolyte.

公开(公告)号：US20190305306A1

公开(公告)日：2019-10-03

申请号：US16335609

申请日：2017-09-25

Applicant: TDK CORPORATION

Inventor： Hiroshi SATO ,  Masahiro OISHI ,  Haruna KATO ,  Taisuke MASUKO ,  Tomohiro YANO

IPC: H01M4/36 ,  H01M4/131 ,  H01M10/0562 ,  H01M4/58 ,  H01M4/62 ,  H01M10/0525

Abstract: An all-solid lithium ion secondary battery includes a pair of electrodes and a solid electrolyte provided between the pair of electrodes. At least one of the pair of electrodes includes an active-material layer and an intermediate layer. An active material constituting the active-material layer has a core-shell structure which has a core region and a shell region and a composition of the intermediate layer is intermediate between the solid electrolyte and the shell region.

公开(公告)号：US20160268629A1

公开(公告)日：2016-09-15

申请号：US15063906

申请日：2016-03-08

Applicant: TDK CORPORATION

Inventor： Teiichi TANAKA ,  Takeo TSUKADA ,  Taisuke MASUKO

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

CPC classification number: H01M10/0562 ,  H01M10/052 ,  H01M10/0585 ,  H01M2300/0077

Abstract: A garnet-type Li-ion conductive oxide contains Li, La, Zr, and oxygen and contains at least one type of element among elements represented by M1, M2, M3, and M4. M1, M2, M3, and M4 are as follows: M1: One or more types of elements selected from the group consisting of Mg, Ca, Sr, Ba, and Zn; M2: One or more types of elements selected from the group consisting of Al, Ga, Co, Fe, and Y; M3: One or more types of elements selected from the group consisting of Sn and Ge; and M4: One or more types of elements selected from the group consisting of Ta and Nb.

Abstract translation: 石榴石型Li离子导电氧化物含有Li，La，Zr和氧，并且含有由M1，M2，M3和M4表示的元素中的至少一种元素。 M1，M2，M3和M4如下：M1：选自Mg，Ca，Sr，Ba和Zn中的一种或多种元素; M2：选自Al，Ga，Co，Fe和Y中的一种或多种元素; M3：选自Sn和Ge中的一种或多种元素; 和M4：从Ta和Nb组成的组中选出的一种或多种元素。

公开(公告)号：US20200028215A1

公开(公告)日：2020-01-23

申请号：US16485074

申请日：2018-03-29

Applicant: TDK CORPORATION

Inventor： Hiroshi SATO ,  Keiko TAKEUCHI ,  Masayuki MUROI ,  Taisuke MASUKO ,  Hisaji OYAKE ,  Tomohiro YANO

IPC: H01M10/0585 ,  H01M10/0525 ,  H01M4/66 ,  H01M10/0562

Abstract: An all-solid-state lithium ion secondary battery includes a plurality of electrode layers that are laminated with a solid electrolyte layer therebetween, a current collector layer and an active material layer being laminated in each of the electrode layers, the current collector layers contain Cu, and Cu-containing regions are formed at grain boundaries that are present near the current collector layer among grain boundaries of particles that form the active material layer.

公开(公告)号：US20190341621A1

公开(公告)日：2019-11-07

申请号：US16464706

申请日：2018-03-27

Applicant: TDK CORPORATION

Inventor： Taisuke MASUKO ,  Tomohiro YANO ,  Hiroshi SATO ,  Masahiro OISHI

IPC: H01M4/62 ,  H01M10/0525 ,  H01M10/0585

Abstract: An all-solid-state secondary battery has a positive electrode collector, a positive electrode active material layer, a negative electrode active material layer, a negative electrode collector, and a solid electrolyte. The solid electrolyte has an interlayer solid electrolyte located between the positive electrode active material layer and the negative electrode active material layer, and the all-solid-state secondary battery further includes a trapping layer that traps a metal of which at least one of the positive electrode collector and the negative electrode collector is formed.