公开(公告)号：US20150207113A1

公开(公告)日：2015-07-23

申请号：US14599231

申请日：2015-01-16

Applicant: Seiko Instruments Inc.

Inventor： Ken MIURA ,  Takumi SAWAYAMA ,  Tadahito SUZUKI ,  Akira MITSUZUKA ,  Tomomi KOBAYASHI

IPC: H01M2/02 ,  H01M2/08 ,  H01M4/485 ,  H01M10/052 ,  H01M10/0569 ,  H01M2/16 ,  H01M10/04 ,  H01M2/04 ,  H01M4/50

CPC classification number: H01M2/0222 ,  H01M2/0413 ,  H01M2/08 ,  H01M2/1613 ,  H01M4/131 ,  H01M4/485 ,  H01M4/502 ,  H01M4/505 ,  H01M10/0427 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0569 ,  H01M2010/4292 ,  H01M2220/30 ,  H01M2300/004 ,  Y02E60/122

Abstract: Provided is a nonaqueous electrolyte secondary battery including a bottomed cylindrical positive electrode casing and a negative electrode casing which is fixed to an opening of the positive electrode casing through a gasket. The opening of the positive electrode casing is caulked to the negative electrode casing side to seal the accommodation space. A shortest distance L1 between a caulking tip end and the negative electrode casing in the opening of the positive electrode casing is equal to or less than 70% of an average sheet thickness of the positive electrode casing, a shortest distance L2 between a tip end of the negative electrode casing and the positive electrode casing is equal to or less than 60% of the average sheet thickness of the positive electrode casing, and a distance L3 between the tip end of the negative electrode casing and the bottom of the positive electrode casing is equal to or less than 110% of the average sheet thickness of the positive electrode casing.

Abstract translation: 提供一种非水电解质二次电池，其包括通过垫圈固定到正电极壳体的开口的有底圆柱形正极壳体和负极壳体。 将正极壳体的开口填充到负极壳体侧以密封容纳空间。 正极壳体的开口部中的铆接末端和负极壳体之间的最短距离L1等于或小于正极壳体的平均片材厚度的70％，最小距离L2在正极壳体的顶端之间的最短距离L2 负极壳体和正极壳体的长度等于或小于正极壳体的平均片材厚度的60％，负极壳体的前端与正极壳体的底部之间的距离L3为 等于或小于正极壳体的平均片材厚度的110％。

公开(公告)号：US20180019500A1

公开(公告)日：2018-01-18

申请号：US15549795

申请日：2016-02-25

Applicant: Seiko Instruments Inc.

Inventor： Ken MIURA

IPC: H01M10/0569 ,  H01M4/134 ,  H01M10/0568 ,  H01M4/36 ,  H01M4/583 ,  H01M4/131 ,  H01M4/48 ,  H01M4/40 ,  H01M4/505 ,  H01M10/0525

Abstract: A nonaqueous electrolyte secondary battery is provided, including: a positive electrode (10) that includes a lithium-manganese oxide as a positive electrode active material; a negative electrode (20) that includes SiOX (0X≦2) in which at least a part of a surface is covered with carbon, or a Li—Al alloy as the negative electrode active material; and an electrolytic solution (50) that contains propylene carbonate (PC), ethylene carbonate (EC), and dimethoxy ethane (DME) as an organic solvent in a range of {PC:EC:DME}={0.5 to 1.5:0.5 to 1.5:1 to 3} in terms of a volume ratio, and at least one of lithium bis(fluorosulfonyl)imide (LiFSI) and lithium bis(trifluoromethane sulfonyl) imide (LiTFSI) as a supporting salt in a total amount of 0.6 to 1.4 (mol/L).

公开(公告)号：US20140242451A1

公开(公告)日：2014-08-28

申请号：US14188319

申请日：2014-02-24

Applicant: Seiko Instruments Inc.

Inventor： Takumi SAWAYAMA ,  Tadahito SUZUKI ,  Ken MIURA

IPC: H01M10/058 ,  H01M10/0525 ,  H01M2/02

CPC classification number: H01M10/058 ,  H01M2/0222 ,  H01M2/026 ,  H01M4/131 ,  H01M4/485 ,  H01M4/581 ,  H01M10/05 ,  H01M10/0525

Abstract: A nonaqueous electrolytic secondary battery of excellent characteristics is provided. The nonaqueous electrolytic secondary battery includes: a positive electrode case; a negative electrode case fixed to the positive electrode case, and that forms a storage space with the positive electrode case in between the negative electrode case and the positive electrode case; a positive electrode portion provided on the positive electrode case in the storage space, and that contains a lithium compound as positive electrode active material; a negative electrode portion provided on the negative electrode case in the storage space, and that contains SiOx (0≦x

Abstract translation: 提供了具有优异特性的非水电解二次电池。 非水电解质二次电池包括：正极壳体; 负极壳体固定在正极壳体上，并且在正极壳体和正极壳体之间形成有正极壳体的存储空间; 正极部，设置在所述储存空间的所述正极壳体上，并且含有锂化合物作为正极活性物质; 负极部，设置在所述存储空间中的所述负极壳体上，并且含有SiO x（0＆lt; nlE; x <2）作为负极活性物质; 以及储存在储存空间内的非水电解液。 负极壳体包括基底层和相对于基底层相对于存储空间设置并且具有比基底层更高的热导率的厚度为2.6μm以上的镍层。

公开(公告)号：US20240088445A1

公开(公告)日：2024-03-14

申请号：US18259931

申请日：2022-01-28

Applicant: Seiko Instruments Inc.

Inventor： Ken MIURA

IPC: H01M10/0569 ,  H01M10/0568 ,  H01M50/109 ,  H01M50/167 ,  H01M50/186

CPC classification number: H01M10/0569 ,  H01M10/0568 ,  H01M50/109 ,  H01M50/167 ,  H01M50/186 ,  H01M2300/004

Abstract: A non-aqueous electrolyte secondary battery of the present invention includes a positive electrode, a negative electrode, a separator, an electrolyte solution, and a storage container in which the positive electrode, the negative electrode, the separator, and the electrolyte solution are arranged in an internal storage space, in which at least one of the positive electrode or the negative electrode is in the form of a pellet containing an active material, a conductive agent, and a binder, the separator is formed of a glass fiber non-woven fabric, and the electrolyte solution contains, as the organic solvent, a mixed solution consisting of propylene carbonate, ethylene carbonate, and dimethoxyethane at a volume ratio in a range of {PC:EC:DME}={0.5 to 1.5:0.5 to 1.5:1 to 3}, and contains, as the supporting salt, 2 to 7 (mol/L) of lithium bis(fluorosulfonyl)imide.

公开(公告)号：US20220109206A1

公开(公告)日：2022-04-07

申请号：US17469081

申请日：2021-09-08

Applicant: Seiko Instruments Inc.

Inventor： Ken MIURA

IPC: H01M50/184 ,  H01M50/171

Abstract: A battery includes a negative electrode can that is formed into a topped cylindrical shape. A negative electrode can circumferential wall portion includes a double cylinder portion that extends from an opening edge of the negative electrode can toward a top portion, and a step portion that connects the top portion to the double cylinder portion. The step portion includes a first curved portion that extends to a lower side from an outer circumferential edge of the top portion, a second curved portion that extends to an outer side of a radial direction from the first curved portion, and a third curved portion that extends to the lower side from the second curved portion. The double cylinder portion includes an inner cylinder portion that extends to the lower side from the third curved portion, and an outer cylinder portion that surrounds the inner cylinder portion from the outer side of the radial direction. A gasket is arranged on an outer side of the outer cylinder portion in the radial direction and on an upper side. An upper end edge of the outer cylinder portion is positioned further on the upper side than a center between both ends of the negative electrode can in an axial direction and is positioned further on the lower side than an upper end edge of the third curved portion.