公开(公告)号：US20220416242A1

公开(公告)日：2022-12-29

申请号：US17773341

申请日：2020-10-30

Applicant: TDK CORPORATION

Inventor： Teiichi TANAKA ,  Takeo TSUKADA

IPC: H01M4/583 ,  H01M10/0562

Abstract: An all-solid-state battery includes an electrode layer, a solid electrolyte layer, an intermediate layer provided at least in a part between the electrode layer and the solid electrolyte layer, the electrode layer includes a current collector layer and an active material layer, the active material layer includes an active material and a carbon material, the intermediate layer has ionic conductivity, the carbon content in the intermediate layer is less than the carbon content in the active material layer.

公开(公告)号：US20190280327A1

公开(公告)日：2019-09-12

申请号：US16335335

申请日：2017-09-25

Applicant: TDK CORPORATION

Inventor： Hiroshi SATO ,  Masahiro OISHI ,  Takeo TSUKADA ,  Gakuho ISOMICHI ,  Tetsuya UENO

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

Abstract: An all-solid lithium ion secondary battery has a pair of electrode layers and a solid electrolyte layer between the pair of electrode layers. In the all-solid lithium ion secondary battery, at least one electrode of the pair of electrodes has an active material layer and an intermediate layer on the surface of the active material layer on the side of the solid electrolyte layer, and each of the solid electrolyte layer, the intermediate layer, and the active material layer includes a compound containing Li and two or more shared types of metal elements other than Li, the two or more shared types of metal elements in the solid electrolyte layer, the intermediate layer, and the active material layer are identical between the solid electrolyte layer, the intermediate layer, and the active material layer.

公开(公告)号：US20190252720A1

公开(公告)日：2019-08-15

申请号：US16333384

申请日：2017-09-25

Applicant: TDK CORPORATION

Inventor： Hiroshi SATO ,  Masahiro OISHI ,  Takeo TSUKADA ,  Gakuho ISOMICHI ,  Tetsuya UENO

IPC: H01M10/0562 ,  H01M10/058 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01B1/06 ,  H01M4/136 ,  H01M4/58 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M2300/0071

Abstract: An active material layer containing a compound represented by a general formula (1): LiaVbAlcTidPeO12 (1), where a, b, c, d, and e in the general formula (1) are numbers satisfying 0.5≤a≤3.0, 1.20

公开(公告)号：US20220344720A1

公开(公告)日：2022-10-27

申请号：US17765367

申请日：2020-09-29

Applicant: TDK CORPORATION

Inventor： Teiichi TANAKA ,  Takeo TSUKADA

IPC: H01M10/0585 ,  H01M4/13 ,  H01M10/0562

Abstract: This all-solid-state battery includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer positioned between the positive electrode layer and the negative electrode layer, the positive electrode layer includes a positive electrode current collector and a positive electrode active material layer which is in contact with the positive electrode current collector, the negative electrode layer includes a negative electrode current collector and a negative electrode active material layer which is in contact with the negative electrode current collector, at least one of the positive electrode active material layer and the negative electrode active material layer has a plurality of voids therein, and the plurality of voids include an anisotropic void in which an aspect ratio obtained by dividing a length in a major axis direction by a length in a minor axis direction is 2 or more and 29 or less.

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：US20230163301A1

公开(公告)日：2023-05-25

申请号：US17908698

申请日：2021-01-05

Applicant: TDK CORPORATION

Inventor： Takeo TSUKADA

IPC: H01M4/587

CPC classification number: H01M4/587 ,  H01M2004/021

Abstract: An all-solid-state battery including: a positive electrode layer that has a positive electrode current collector layer and a positive electrode active material layer; a negative electrode layer that has a negative electrode current collector layer and a negative electrode active material layer; and a solid electrolyte layer that contains a solid electrolyte, in which the positive electrode active material layer and the negative electrode active material layer each have a G-band full-width at half-maximum (G-FWHM) in a Raman spectrum of 40 (cm−1) or less.

公开(公告)号：US20220367846A1

公开(公告)日：2022-11-17

申请号：US17765566

申请日：2020-09-29

Applicant: TDK CORPORATION

Inventor： Teiichi TANAKA ,  Takeo TSUKADA

IPC: H01M4/133

Abstract: An all-solid-state battery includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer positioned between the positive electrode layer and the negative electrode layer, the positive electrode layer includes a positive electrode current collector and a positive electrode active material layer which is in contact with the positive electrode current collector, the negative electrode layer includes a negative electrode current collector and a negative electrode active material layer which is in contact with the negative electrode current collector, at least one of the positive electrode active material layer and the negative electrode active material layer has a plurality of voids and a plurality of carbon materials therein, and 8% or more of the plurality of voids are in contact with any of the plurality of carbon materials.

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：US20230126501A1

公开(公告)日：2023-04-27

申请号：US17908632

申请日：2021-01-06

Applicant: TDK CORPORATION

Inventor： Takeo TSUKADA

IPC: H01M4/583 ,  H01M4/36

Abstract: An all-solid-state battery having a positive electrode layer including a positive electrode current collector layer and a positive electrode active material layer, a negative electrode layer including a negative electrode current collector layer and a negative electrode active material layer, and a solid electrolyte layer containing a solid electrolyte, and the positive electrode active material layer and the negative electrode active material layer each contain carbon particles having an average interplanar spacing d002 of smaller than 0.342 (nm).

公开(公告)号：US20200266445A1

公开(公告)日：2020-08-20

申请号：US16498884

申请日：2018-03-28

Applicant: TDK CORPORATION

Inventor： Takeo TSUKADA

IPC: H01M4/58 ,  H01M4/131 ,  H01M10/0525

Abstract: A high discharge capacity in an all-solid-state battery in which lithium vanadium phosphate is used in a positive electrode active material layer and a negative electrode active material layer. An all-solid-state battery wherein a positive electrode active material layer and a negative electrode active material layer contain lithium vanadium phosphate, which includes a Li- and V-containing polyphosphate compound and satisfies 1.50