公开(公告)号：US20230078710A1

公开(公告)日：2023-03-16

申请号：US17650774

申请日：2022-02-11

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Keigo HOSHINA ,  Yumiko SEKIGUCHI ,  Yasuyuki HOTTA ,  Shinsuke MATSUNO ,  Norio TAKAMI

IPC: H01M50/54 ,  H01M50/543 ,  H01M4/66 ,  H01M50/534 ,  H01M4/485

Abstract: According to one embodiment, a secondary battery is provided. The secondary battery includes a first electrode having a first current collector, second electrode having a second current collector, and an aqueous electrolyte. The first electrode includes a first lead, and a first joint for electrically connecting the first current collector and the first lead. At least a part of the surface of the first current collector has a first current collector coating. At least a part of the surface of the first lead has a first lead coating. The thickness of the first lead coating is larger than the thickness of the first current collector coating.

公开(公告)号：US20200168913A1

公开(公告)日：2020-05-28

申请号：US16778026

申请日：2020-01-31

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasuyuki HOTTA ,  Shinsuke MATSUNO ,  Norio TAKAMI

IPC: H01M4/66 ,  H01M10/0525 ,  H01M10/42 ,  B60L50/61 ,  H01M2/10 ,  H01M4/02

Abstract: According to one embodiment, there is provided a secondary battery including a positive electrode, a negative electrode, and an aqueous electrolyte. The positive electrode includes a positive electrode active material. The negative electrode includes a negative electrode active material and an additive resin containing a hydroxyl group unit and a first unit. The first unit consists of at least one of a butyral unit and an acetal unit. A content ratio of a content of the first unit contained in the additive resin to a content of the hydroxyl group unit contained in the additive resin is in a range of 1.2 to 18.

公开(公告)号：US20160087264A1

公开(公告)日：2016-03-24

申请号：US14855604

申请日：2015-09-16

Applicant: Kabushiki Kaisha Toshiba

Inventor： Norikazu OSADA ,  Takashi KUBOKl ,  Shinsuke MATSUNO

IPC: H01M4/36 ,  H01M4/133 ,  H01M4/587 ,  H01M4/38 ,  H01M4/485 ,  H01M4/131 ,  H01M4/134

CPC classification number: H01M4/364 ,  H01M4/13 ,  H01M4/386 ,  H01M4/483 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021

Abstract: A negative electrode for a nonaqueous electrolyte secondary battery of the embodiment includes a current collector; and an electrode mixture layer that is formed on the current collector and contains a first particle, a second particle and a binder. The first particle is comprised of silicon, a silicon oxide and a carbonaceous material. The second particle has electron conductivity and an oxygen content of 1% or lower. The electrode mixture layer is characterized in that silicon concentrations in the vicinity of the surface having contact with the current collector and the vicinity of the opposite surface to the surface having contact with the current collector are higher than a silicon concentration at the central part in the thickness direction.

Abstract translation: 本实施方式的非水电解质二次电池用负极包括集电体， 以及形成在集电体上并含有第一颗粒，第二颗粒和粘合剂的电极混合物层。 第一颗粒由硅，氧化硅和碳质材料构成。 第二颗粒具有电子传导性，氧含量为1％以下。 电极混合层的特征在于，与集电体接触的表面附近的硅浓度与与集电体接触的表面的相反表面附近的硅浓度高于在集电体的中心部分的硅浓度 厚度方向。

公开(公告)号：US20150303510A1

公开(公告)日：2015-10-22

申请号：US14753836

申请日：2015-06-29

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shinsuke MATSUNO ,  Hiromichi KURIYAMA ,  Hideki SATAKE ,  Takashi KUBOKl

IPC: H01M10/05 ,  H01M4/58 ,  H01M4/505 ,  H01M4/525 ,  H01M4/13 ,  H01M4/485

CPC classification number: H01M10/05 ,  H01M4/13 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028 ,  Y02E60/122

Abstract: According to one embodiment, there is provided a non-aqueous electrolyte secondary battery including a positive electrode including a positive electrode active material layer, a negative electrode including a negative electrode active material layer, and a non-aqueous electrolyte. At least one of the positive electrode active material layer and the negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.1 ml to 10 ml per 1 g when heated at 350° C. for 1 minute.

Abstract translation: 根据一个实施方案，提供了一种非水电解质二次电池，其包括正极，其包括正极活性物质层，负极包含负极活性物质层和非水电解质。 当在350℃下加热1分钟时，正极活性物质层和负极活性物质层中的至少一方含有二氧化碳，并将二氧化碳释放到0.1ml〜10ml的范围内。

公开(公告)号：US20150086854A1

公开(公告)日：2015-03-26

申请号：US14482175

申请日：2014-09-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shinsuke MATSUNO ,  Takashi KUBOKI ,  Keiko OKAMOTO ,  Norikazu OSADA ,  Sara YOSHIO

IPC: H01M4/66 ,  H01M4/134 ,  H01M4/131 ,  H01M4/485 ,  H01M4/38

CPC classification number: H01M4/661 ,  H01M4/131 ,  H01M4/134 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M4/667 ,  H01M10/0525 ,  H01M10/4235 ,  Y02T10/7011

Abstract: A nonaqueous electrolyte secondary battery of an embodiment includes an electrode group including a cathode collector, a cathode having a cathode active material layer formed on the cathode collector, an anode collector, an anode having an anode active material layer formed on the anode collector, and a separator placed between the cathode and the anode, an exterior member housing the electrode group, and a nonaqueous electrolyte filled in the exterior member. In the nonaqueous electrolyte secondary battery, the anode collector is at least one metal selected from among Fe, Ti, Ni, Cr, and Al, or an alloy containing at least one metal selected from among Fe, Ti, Ni, Cr, and Al. In the nonaqueous electrolyte secondary battery, a coating containing at least one metal selected from Au and Cu is formed on at least one of the surfaces of the anode collector excluding the anode active material layer.

Abstract translation: 本实施方式的非水电解质二次电池包括：阴极集电体，具有形成在阴极集电体上的正极活性物质层的阴极，阳极集电体，具有在阳极集电体上形成的负极活性物质层的阳极的电极组， 设置在阴极和阳极之间的隔板，容纳电极组的外部构件和填充在外部构件中的非水电解质。 在非水电解质二次电池中，阳极集电体是选自Fe，Ti，Ni，Cr和Al中的至少一种金属，或含有选自Fe，Ti，Ni，Cr和Al中的至少一种金属的合金 。 在非水电解质二次电池中，除了负极活性物质层之外，在负极集电体的至少一个表面上形成含有选自Au和Cu中的至少一种金属的涂层。

公开(公告)号：US20150086852A1

公开(公告)日：2015-03-26

申请号：US14482155

申请日：2014-09-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shinsuke MATSUNO ,  Takashi KUBOKI ,  Keiko OKAMOTO ,  Norikazu OSADA ,  Sara YOSHIO

IPC: H01M4/134 ,  H01M10/0525 ,  H01M4/485 ,  H01M4/38 ,  H01M4/13 ,  H01M4/131

CPC classification number: H01M4/134 ,  H01M4/131 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485 ,  H01M10/0525 ,  H01M2004/021

Abstract: A nonaqueous electrolyte secondary battery of an embodiment includes an exterior member; a positive electrode housed in the exterior member, a negative electrode containing an active material and housed in the exterior member so as to be spatially separated from the positive electrode via a separator, and a nonaqueous electrolyte filled in the exterior member. The negative electrode includes a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector. A tensile strength of the negative electrode is 400 N/mm2 or more and 1200 N/mm2 or less. A peel strength between the negative electrode current collector and the negative electrode active material layer is 1.5 N/cm or more and 4 N/cm or less.

Abstract translation: 实施方式的非水电解质二次电池包括外部构件; 容纳在外部构件中的正极，含有活性物质的负极，并容纳在外部构件中，以便通过隔膜与正极空间分离，以及填充在外部构件中的非水电解质。 负极在负极集电体上具有负极集电体和负极活性物质层。 负极的拉伸强度为400N / mm 2以上且1200N / mm 2以下。 负极集电体和负极活性物质层之间的剥离强度为1.5N / cm以上且4N / cm以下。

公开(公告)号：US20140134477A1

公开(公告)日：2014-05-15

申请号：US14167288

申请日：2014-01-29

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hiromichi KURIYAMA ,  Hidesato SARUWATARI ,  Kazuya KURIYAMA ,  Shinsuke MATSUNO

IPC: H01M10/0567

CPC classification number: H01M10/0567 ,  H01M4/131 ,  H01M4/366 ,  H01M4/485 ,  H01M10/052 ,  Y02T10/7011

Abstract: A nonaqueous electrolyte secondary battery according to an embodiment includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The negative electrode contains a negative electrode active material. A lithium insertion-extraction reaction potential of a negative electrode active material is higher than the oxidation-reduction potential of lithium by a value of 1 V or more. The nonaqueous electrolyte contains an electrolytic salt, a nonaqueous solvent, at least one hydroxyalkylsulfonic acid, and at least one sulfonate.

Abstract translation: 根据实施方案的非水电解质二次电池包括正极，负极和非水电解质。 负极含有负极活性物质。 负极活性物质的锂插入提取反应电位比锂的氧化还原电位高1V以上。 该非水电解质含有电解质盐，非水溶剂，至少一种羟基烷基磺酸和至少一种磺酸盐。

公开(公告)号：US20130330629A1

公开(公告)日：2013-12-12

申请号：US13968965

申请日：2013-08-16

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shinsuke MATSUNO ,  Hidesato Saruwatari ,  Dai Yamamoto ,  Asato Kondo ,  Hiromichi Kuriyama ,  Hideki Satake ,  Takashi Kuboki

IPC: H01M4/133 ,  H01M4/131

CPC classification number: H01M4/133 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  Y10T29/49108

Abstract: According to one embodiment, there is provided a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode including a negative electrode active material layer, and a non-aqueous electrolyte. The negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.1 ml to 5 ml per 1 g when heated at 200° C. for 1 minute.

Abstract translation: 根据一个实施方式，提供一种非水电解质二次电池，其包括正极，负极，包括负极活性物质层和非水电解质。 当在200℃下加热1分钟时，负极活性物质层含有二氧化碳，并将二氧化碳释放在0.1ml至5ml的范围内。

公开(公告)号：US20130316242A1

公开(公告)日：2013-11-28

申请号：US13826653

申请日：2013-03-14

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shinsuke MATSUNO ,  Akira Yajima ,  Yuki Otani ,  Yoshinao Tatebayashi ,  Yoshiyuki Isozaki ,  Hidesato Saruwatari ,  Hideki Satake

IPC: H01M4/485 ,  H01M4/04

CPC classification number: H01M4/485 ,  H01M4/04 ,  H01M4/131 ,  H01M4/38 ,  H01M10/049 ,  H01M10/0525 ,  H01M10/44 ,  H01M2004/021 ,  H01M2004/027 ,  Y10T29/4911

Abstract: According to one embodiment, a non-aqueous electrolyte secondary battery is provided. A negative electrode layer in the battery includes a lithium titanium oxide, and has first region(s) and a second region on a surface. The first region(s) is/are surrounded by the second region and have a lower lithium concentration. The second region has a higher lithium concentration. The negative electrode layer satisfies the formula (I): T2

Abstract translation: 根据一个实施方案，提供非水电解质二次电池。 电池中的负极层包括锂二氧化钛，并且在表面上具有第一区域和第二区域。 第一区域被第二区域包围并具有较低的锂浓度。 第二区域的锂浓度较高。 负极层满足式（I）：T2

公开(公告)号：US20220069336A1

公开(公告)日：2022-03-03

申请号：US17180685

申请日：2021-02-19

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hayato SEKI ,  Yasuyuki HOTTA ,  Wataru UNO ,  Shinsuke MATSUNO

IPC: H01M10/04 ,  H01M10/42

Abstract: According to one embodiment, an electrode structure is provided. The electrode structure includes an electrode group and a hold member. The hold member clamps the electrode group in a thickness direction of the electrode group. The electrode group satisfies a formula (1) below. m/L≤0.01  (1) Here, m is a difference Δt in a cross section which is selected from among a plurality of cross sections along the thickness direction of the electrode group. L is a maximum length of the electrode group in an in-plane direction orthogonal to the thickness direction.