公开(公告)号：US20140045032A1

公开(公告)日：2014-02-13

申请号：US13962221

申请日：2013-08-08

Applicant: SANYO Electric Co., Ltd.

Inventor： Hirofusa Tanaka ,  Masahiro Iyori ,  Keisuke Minami ,  Toyoki Fujihara ,  Toshiyuki Nohma

IPC: H01M10/04 ,  H01M10/0563 ,  H01M10/052 ,  H01M2/16 ,  H01M2/02

CPC classification number: H01M10/045 ,  H01M2/0237 ,  H01M2/1653 ,  H01M2/166 ,  H01M2/1666 ,  H01M2/1686 ,  H01M4/13 ,  H01M4/62 ,  H01M4/623 ,  H01M10/052 ,  H01M10/0563 ,  H01M10/0567 ,  H01M10/0583 ,  H01M2220/20 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

Abstract: A nonaqueous electrolyte secondary battery includes: a stacked electrode assembly formed by stacking a plurality of layers of a positive electrode plate and a plurality of layers of a negative electrode plate with a separator interposed therebetween; a nonaqueous electrolyte; and an aluminum laminated outer body that stores the stacked electrode assembly and into which the nonaqueous electrolyte is poured. The positive electrode plate contains a positive electrode active material. The negative electrode plate contains a negative electrode active material. The stacked electrode assembly includes an inorganic particle layer containing a binder and inorganic particles between the positive electrode plate and the separator or between the negative electrode plate and the separator, or both. The nonaqueous electrolyte is also prepared by adding LiPF2O2 thereto.

Abstract translation: 非水电解质二次电池包括：层叠电极组件，其通过以分隔件插入正极板和多层负极板的多层而形成; 非水电解质; 以及铝叠层外壳，其存储堆叠的电极组件，并且非水电解质被倒入其中。 正极板含有正极活性物质。 负极板含有负极活性物质。 堆叠电极组件包括含有粘合剂的无机颗粒层和正极板和隔板之间或负极板和隔板之间的无机颗粒，或两者。 非水电解质也可以通过向其中加入LiPF 2 O 2来制备。

公开(公告)号：US20220077499A1

公开(公告)日：2022-03-10

申请号：US17417199

申请日：2019-12-19

Applicant: SANYO Electric Co., Ltd.

Inventor： Yohei Tao ,  Mio Nosaka ,  Keisuke Minami ,  Toyoki Fujihara

IPC: H01M10/0569 ,  H01M10/0587 ,  H01M50/417 ,  H01M50/186

Abstract: Provided is a non-aqueous electrolyte secondary battery having excellent properties even at low temperatures. The non-aqueous electrolyte secondary battery comprises: an electrode assembly including a positive electrode plate and a negative electrode plate; a non-aqueous electrolyte; an exterior body having an opening, and accommodating the electrode assembly and the non-aqueous electrolyte; and a sealing plate for sealing the opening of the exterior body, wherein the negative electrode plate has a negative electrode core and a negative electrode active material layer formed on the negative electrode core, and the non-aqueous electrolyte contains a non-aqueous solvent, the non-aqueous solvent containing 50-80 vol % of a chain carbonate with respect to the non-aqueous solvent, and containing, as the chain carbonate, 30-40 vol % of dimethyl carbonate, 3-8 vol % of propylene carbonate, and 2-5 vol % of methyl propionate with respect to the non-aqueous solvent.

公开(公告)号：US10096864B2

公开(公告)日：2018-10-09

申请号：US14900478

申请日：2014-06-10

Applicant: SANYO ELECTRIC CO., LTD.

Inventor： Keisuke Minami ,  Toyoki Fujihara ,  Toshiyuki Nohma

IPC: H01M10/42 ,  H01M10/0587 ,  H01M10/0525 ,  H01M2/34 ,  H01M4/13 ,  H01M4/62 ,  H01M2/26 ,  H01M10/052 ,  H01M10/0567 ,  H01M2/02

Abstract: A nonaqueous electrolyte secondary battery includes a pressure-sensitive current interrupt mechanism, and a flat wound electrode body that is inserted in an outer casing with a winding axis of the flat wound electrode body arranged to extend in a horizontal direction. A positive electrode plate, a negative electrode plate, and a separator in a winding end portion of the flat wound electrode body are all directed toward a top side.

公开(公告)号：US09391343B2

公开(公告)日：2016-07-12

申请号：US13962183

申请日：2013-08-08

Applicant: SANYO Electric Co., Ltd.

Inventor： Daisuke Ikeda ,  Keisuke Minami ,  Toyoki Fujihara ,  Toshiyuki Nohma

IPC: H01M4/505 ,  H01M10/0563 ,  H01M2/02 ,  H01M10/052 ,  H01M4/13 ,  H01M4/131 ,  H01M4/525 ,  H01M10/0568

CPC classification number: H01M10/0563 ,  H01M2/0237 ,  H01M4/13 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0568 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly, a nonaqueous electrolyte, and a container. The electrode assembly has a positive electrode, a negative electrode, and a separator. The positive electrode contains particles of a lithium transition metal compound as a positive electrode active material. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The nonaqueous electrolyte contains lithium difluorophosphate. The container houses the electrode assembly and the nonaqueous electrolyte. The battery capacity is not less than 21 Ah. The mean particle diameter (D50) of the particles of the lithium transition metal compound is not less than 5 μm and not more than 15 μm. The (D90−D10)/D50 of the particles of the lithium transition metal compound is under 1.1.

Abstract translation: 根据本发明实施方案的非水电解质二次电池包括电极组件，非水电解质和容器。 电极组件具有正极，负极和隔膜。 正极含有作为正极活性物质的锂过渡金属化合物的粒子。 负极与正极相对。 隔板设置在正极和负极之间。 非水电解质含有二氟磷酸锂。 容器容纳电极组件和非水电解质。 电池容量不小于21 Ah。 锂过渡金属化合物的颗粒的平均粒径（D50）不小于5μm且不大于15μm。 锂过渡金属化合物颗粒的（D90-D10）/ D50低于1.1。

公开(公告)号：US20140045077A1

公开(公告)日：2014-02-13

申请号：US13943076

申请日：2013-07-16

Applicant: Sanyo Electric Co., Ltd.

Inventor： Keisuke Minami ,  Toyoki Fujihara ,  Toshiyuki Nohma

IPC: H01M10/056

CPC classification number: H01M10/056 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  Y02T10/7011

Abstract: To provide a high-capacity non-aqueous electrolyte secondary battery having superior cycle properties and safety.The present invention is a non-aqueous electrolyte secondary battery including electrode cores and a non-aqueous electrolyte containing a non-aqueous solvent, the positive electrode having a positive electrode active material layer formed on the positive electrode core, and the negative electrode having a negative electrode active material layer formed on the negative electrode core. In this non-aqueous electrolyte secondary battery, the non-aqueous solvent includes 25 to 40 vol % ethylene carbonate at 25° C. and 1 atm, the non-aqueous electrolyte includes lithium bis(oxalato)borate, the amount of positive electrode active material in the positive electrode active material layer is equal to or greater than 100 g, the amount of negative electrode active material in the negative electrode active material layer is equal to or greater than 50 g, and the battery capacity of the non-aqueous electrolyte secondary battery is equal to or greater than 15 Ah.

Abstract translation: 提供具有优异的循环性能和安全性的高容量非水电解质二次电池。 本发明是一种非水电解质二次电池，其包含电极芯和含有非水溶剂的非水电解质，所述正极具有形成在所述正极芯上的正极活性物质层，所述负极具有 形成在负极芯上的负极活性物质层。 在该非水电解质二次电池中，非水系溶剂在25℃，1atm下含有25〜40体积％的碳酸亚乙酯，非水电解质包含双（草酸）硼酸锂，正极活性物质 正极活性物质层中的材料等于或大于100g，负极活性物质层中的负极活性物质的量等于或大于50g，并且非水电解质的电池容量 二次电池等于或大于15 Ah。

公开(公告)号：US20140045043A1

公开(公告)日：2014-02-13

申请号：US13962112

申请日：2013-08-08

Applicant: SANYO Electric Co., Ltd.

Inventor： Taiki Nonaka ,  Keisuke Minami ,  Toshikazu Yoshida ,  Toyoki Fujihara ,  Toshiyuki Nohma

IPC: H01M10/0563 ,  H01M10/04

CPC classification number: H01M10/0563 ,  H01M10/0413 ,  H01M10/05 ,  H01M10/0567 ,  H01M10/0568

Abstract: A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly and a nonaqueous electrolyte. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The capacity of the battery is not less than 21 Ah. The negative electrode is provided on the outer periphery side of the electrode assembly. The nonaqueous electrolyte contains lithium difluorophosphate.

Abstract translation: 根据本发明实施方式的非水电解质二次电池包括电极组件和非水电解质。 电极组件包括正极，负极和隔膜。 负极与正极相对。 隔板设置在正极和负极之间。 电池容量不小于21 Ah。 负电极设置在电极组件的外周侧。 非水电解质含有二氟磷酸锂。

公开(公告)号：US20140045018A1

公开(公告)日：2014-02-13

申请号：US13962028

申请日：2013-08-08

Applicant: SANYO Electric Co., Ltd.

Inventor： Daisuke Ikeda ,  Keisuke Minami ,  Toyoki Fujihara ,  Toshiyuki Nohma

IPC: H01M10/0563

CPC classification number: H01M10/0563 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0587 ,  H01M2010/4292 ,  H01M2220/20

Abstract: A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly and a nonaqueous electrolyte. The electrode assembly is formed by winding a positive electrode, a negative electrode, and a separator. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The capacity of the battery is not less than 4 Ah. The number of stacked layers of the positive electrode in a section that includes the center of the nonaqueous electrolyte secondary battery is not less than 50. The positive and negative electrode opposed capacity ratio is 1.1 to 1.4. The nonaqueous electrolyte contains lithium difluorophosphate.

Abstract translation: 根据本发明实施方式的非水电解质二次电池包括电极组件和非水电解质。 电极组件通过卷绕正极，负极和隔膜来形成。 负极与正极相对。 隔板设置在正极和负极之间。 电池容量不小于4 Ah。 包含非水电解质二次电池的中心的部分中的正极堆叠层数不小于50.正负极电容比为1.1〜1.4。 非水电解质含有二氟磷酸锂。

公开(公告)号：US20140045017A1

公开(公告)日：2014-02-13

申请号：US13962002

申请日：2013-08-08

Applicant: SANYO Electric Co., Ltd.

Inventor： Taiki Nonaka ,  Keisuke Minami ,  Toshikazu Yoshida ,  Toyoki Fujihara ,  Toshiyuki Nohma

IPC: H01M10/04

CPC classification number: H01M10/0431 ,  H01M2/22 ,  H01M2/263 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0587 ,  H01M2220/20 ,  Y02E60/122

Abstract: In a prismatic nonaqueous electrolyte secondary battery according to an embodiment of the invention, a flat winding electrode assembly and a nonaqueous electrolyte are housed in a prismatic outer body. A positive electrode includes a positive electrode substrate exposed portion formed along the longitudinal direction. A negative electrode includes a negative electrode substrate exposed portion formed along the longitudinal direction. The nonaqueous electrolyte contains a lithium salt having an oxalate complex as an anion at the time of making the nonaqueous electrolyte secondary battery. The winding electrode assembly has a winding end of the negative electrode disposed on a further outer side than that of the positive electrode. The winding number of the positive electrode and the negative electrode are each 15 or more.

Abstract translation: 在根据本发明实施例的棱柱形非水电解质二次电池中，平面卷绕电极组件和非水电解质容纳在棱柱形外体中。 正极包括沿着长度方向形成的正电极基板露出部。 负极包括沿着长度方向形成的负极基板露出部。 非水电解质含有在制造非水电解质二次电池时具有草酸盐络合物作为阴离子的锂盐。 绕组电极组件具有设置在比正极的外侧更靠外侧的负极的绕组端。 正极和负极的绕组数分别为15个以上。

公开(公告)号：US20140045012A1

公开(公告)日：2014-02-13

申请号：US13943093

申请日：2013-07-16

Applicant: Sanyo Electric Co., Ltd.

Inventor： Taiki Nonaka ,  Keisuke Minami ,  Shingo Tode ,  Toyoki Fujihara ,  Toshiyuki Nohma

IPC: H01M10/0561

CPC classification number: H01M10/0561 ,  H01M2/1686 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0587 ,  Y02T10/7011

Abstract: To provide a non-aqueous electrolyte secondary battery having high capacity and superior safety and cycle characteristics.The present invention is a non-aqueous electrolyte secondary battery including an electrode assembly and a non-aqueous electrolyte, the electrode assembly having a positive electrode, a negative electrode and a separator separating the positive electrode and the negative electrode, the non-aqueous electrolyte secondary battery characterized in that the separator has a three-layer laminated structure, the melting point of the middle layer being lower than either of the two outer layers, and the non-aqueous electrolyte including lithium bis(oxalato)borate.

Abstract translation: 提供具有高容量和优异的安全性和循环特性的非水电解质二次电池。 本发明是一种非水电解质二次电池，其包括电极组件和非水电解质，所述电极组件具有正极，负极和分离正极和负极的隔膜，非水电解质 二次电池，其特征在于，所述隔板具有三层层叠结构，所述中间层的熔点低于两个外层中的任一个，所述非水电解质包含双（草酸）硼酸锂。

公开(公告)号：US20240297386A1

公开(公告)日：2024-09-05

申请号：US17909935

申请日：2021-01-19

Applicant: SANYO Electric Co., Ltd.

Inventor： Yuji Ogishima ,  Takeshi Yoshida ,  Toyoki Fujihara ,  Keisuke Minami

IPC: H01M50/242 ,  H01M10/04 ,  H01M50/209 ,  H01M50/291

CPC classification number: H01M50/242 ,  H01M10/0431 ,  H01M50/209 ,  H01M50/291

Abstract: A battery pack includes rectangular secondary batteries arranged in a state in which the secondary batteries is pressed against each other in an arrangement direction through spacers. Each secondary battery is configured such that a flat wound electrode body is housed in a battery case with a winding axis extending parallel with a long side surface of the battery case. The electrode body has a flat portion in which positive and negative electrode material mixture layers face each other with a separator interposed therebetween. The spacers include a pair of first pressing portions pressing both end portions of the long side surface, which faces the flat portion, of the battery case in a winding axis direction along a direction perpendicular to the winding axis, and a second pressing portion pressing a portion of the long side surface along the winding axis between the pair of first pressing portions.