公开(公告)号：JP2001345101A

公开(公告)日：2001-12-14

申请号：JP2001056346

申请日：2001-03-01

Applicant: SONY CORP

Inventor： TSUJIMOTO TAKASHI ,  YAMAMOTO YOSHIKATSU ,  KUYAMA JUNJI ,  NAGAMINE MASAYUKI ,  KOMARU TOKUO ,  TANIZAKI HIROAKI

IPC: C01G49/00 ,  C01G53/00 ,  H01M2/02 ,  H01M4/02 ,  H01M4/36 ,  H01M4/38 ,  H01M4/40 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M6/10 ,  H01M10/04 ,  H01M10/05 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0587 ,  H01M10/38 ,  H01M4/58 ,  H01M10/40

Abstract: PROBLEM TO BE SOLVED: To provide a secondary battery having an excellent high temperature shelf life and excellent charging/discharging cycle characteristics. SOLUTION: A wound electrode body 20 formed by winding a belt-shaped positive electrode 21 and a belt-shaped negative electrode 22 through a separator 23 is contained in a battery can 11. The positive electrode 21 contains LixMn2-yMayO4 (Ma is at least one kind in a group comprising a metal element other than Mn, and B) and LiNi1-zMbzO2 (Mb is at least one kind in a group comprising a metal element other than Ni, and B). By substituting other element for part of Mn and Ni, crystal structure can be stabilized, the capacity retention ratio after high temperature storage and high load discharging energy under a high cut-off voltage condition can be increased. An average particle size of these oxides is preferably 30 μm or less to obtain excellent charging/ discharging characteristics.

公开(公告)号：JP2014179338A

公开(公告)日：2014-09-25

申请号：JP2014108284

申请日：2014-05-26

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KOBAYASHI YUTA ,  TSUJIMOTO TAKASHI ,  KURATSUKA MAKI ,  FUKUSHIMA GEN

IPC: H01M10/0587 ,  H01M10/052

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To achieve both of vibration and impact resistance and a heat resistance property of a cylindrical non-aqueous electrolyte battery.SOLUTION: A positive electrode and a negative electrode are laminated and wound through a separator, and a wound electrode body disposed with an adhesive member is inserted into a battery can so as to cover a winding end of the positive electrode and the negative electrode at a winding outer circumference. In this case, the adhesive member is composed of base material and an adhesive layer disposed on the whole or at least a part of one surface of the base material. The base material is constituted by mixing resin material with a high swelling property and a resin material with a high melting point. Degree of swelling of the resin material with the high swelling property is 5% or higher, preferably 11% or higher after dipping in a propylene carbonate, and the melting point of the resin material with high melting point is 60°C or higher.

Abstract translation: 要解决的问题：为了实现圆柱形非水电解质电池的振动和抗冲击性和耐热性两者。解决方案：将正极和负极层压并缠绕在隔板上，并且设置缠绕电极体 将粘合剂部件插入电池壳体中，以覆盖正极和负极的卷绕端部的卷绕外周。 在这种情况下，粘合构件由基材和设置在基材的一个表面的整个或至少一部分上的粘合层构成。 基材通过混合具有高溶胀性的树脂材料和具有高熔点的树脂材料构成。 具有高溶胀性的树脂材料的溶胀度在浸渍在碳酸丙烯酯中后为5％以上，优选为11％以上，高熔点的树脂材料的熔点为60℃以上。

公开(公告)号：JP2011181441A

公开(公告)日：2011-09-15

申请号：JP2010046545

申请日：2010-03-03

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KOBAYASHI YUTA ,  TSUJIMOTO TAKASHI ,  KURATSUKA MAKI ,  FUKUSHIMA GEN

IPC: H01M10/0587

CPC classification number: H01M4/62 ,  H01M2/02 ,  H01M2/08 ,  H01M10/02 ,  H01M10/0422 ,  H01M10/0431 ,  H01M10/4235 ,  H01M2220/30 ,  Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide an adhesive member which has vibration and impact resistance and a heat resistance property of a cylindrical nonaqueous electrolyte battery, and has a loosening prevention effect of a wound electrode body and a fixing effect in a battery can. SOLUTION: A positive electrode and a negative electrode are laminated and wound through a separator, and a wound electrode body installed with the adhesive member 17 is inserted into a battery can so as to cover the winding end of the positive electrode and the negative electrode at the winding outer circumference. In this case, the adhesive member 17 is composed of a base material 17A and an adhesive layer 17B installed on the whole or at least a part of one of the surface. The base material 17A is constituted by mixing a resin material with a high swelling property and a resin material with a high melting point. The degree of the swelling of the resin material with a high swelling property is 5% or higher, preferably 11% or higher after dipping in a propylene carbonate, and the melting point of the resin material with high melting point is 60°C or higher. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决的问题：提供一种具有振动和抗冲击性和圆柱形非水电解质电池的耐热性的粘合剂，并且具有卷绕电极体的松动防止效果和电池罐中的固定效果 。 解决方案：将正极和负极层压并卷绕在隔板上，将安装有粘合构件17的卷绕电极体插入电池壳中，以覆盖正极的绕组端和 负极在绕组外圆周上。 在这种情况下，粘合部件17由安装在表面的整体或至少一部分上的基材17A和粘接层17B构成。 基材17A通过混合具有高溶胀性的树脂材料和具有高熔点的树脂材料构成。 在碳酸丙烯酯浸渍后，具有高溶胀性的树脂材料的溶胀度为5％以上，优选为11％以上，高熔点树脂材料的熔点为60℃以上 。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011054462A

公开(公告)日：2011-03-17

申请号：JP2009203398

申请日：2009-09-03

Applicant: Sony Corp ,  ソニー株式会社

Inventor： NAKAMURA RIICHI ,  TSUJIMOTO TAKASHI ,  OBANA YOSHIAKI

IPC: H01M4/13 ,  H01M4/139 ,  H01M4/62 ,  H01M4/70 ,  H01M10/0566 ,  H01M10/0587

CPC classification number: H01M4/621 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/623 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49115

Abstract: PROBLEM TO BE SOLVED: To provide a negative electrode for a nonaqueous electrolyte secondary battery increasing the volume density of a negative electrode mixture layer, demonstrating stable negative electrode characteristics and contributing to high capacity, a method of manufacturing the same, and a nonaqueous electrolyte secondary battery. SOLUTION: The negative electrode for a nonaqueous electrolyte secondary battery includes a negative electrode active material layer containing a negative electrode active material, a polyvinylidene fluoride component (A), a styrene butadiene component (B), a nonionic surfactant (C) having an HLB of 10-15, and N-methylpyrrolidone (D); and a foil-shaped negative electrode current collector having the negative electrode active material layer provided on at least one principal surface of the collector. In the method of manufacturing the negative electrode for a nonaqueous electrolyte secondary battery, a negative electrode mixture slurry containing the components (A)-(D) and having the component (D) as a dispersion medium is prepared, the negative electrode mixture slurry is applied on at least one principal surface of the negative electrode current collector, and dried and heated. The component (B) in a water-soluble aqueous dispersion state is used. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决的问题：为了提供一种提高负极混合物层的体积密度的非水电解质二次电池用负极，显示出稳定的负极特性，有助于高容量，其制造方法和 非水电解质二次电池。 解决方案：非水电解质二次电池用负极包括含有负极活性物质的负极活性物质层，聚偏二氟乙烯成分（A），苯乙烯丁二烯成分（B），非离子表面活性剂（C） 具有10-15的HLB和N-甲基吡咯烷酮（D）; 以及设置在集电体的至少一个主面上的具有负极活性物质层的箔状负极集电体。 在制造非水电解质二次电池用负极的方法中，制备含有成分（A） - （D），成分（D）作为分散介质的负极混合浆料，负极混合浆料为 施加到负极集电体的至少一个主表面上，并干燥并加热。 使用水溶性水分散状态的成分（B）。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2009087889A

公开(公告)日：2009-04-23

申请号：JP2007259645

申请日：2007-10-03

Applicant: Sony Corp ,  ソニー株式会社

Inventor： OBANA YOSHIAKI ,  KAJITA ATSUSHI ,  TEJIMA YUKAKO ,  OGAWA KENICHI ,  TSUJIMOTO TAKASHI

IPC: H01M2/16 ,  H01M4/02 ,  H01M4/13 ,  H01M4/36 ,  H01M4/525 ,  H01M10/052

CPC classification number: H01M4/0404 ,  H01M2/166 ,  Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a separator with a heat-resistant insulating layer which provides a nonaqueous electrolyte secondary battery excellent in both of safety at the time of overheat and the high temperature cycle characteristic even if charging upper limit voltage is set up at high voltage in a nonaqueous electrolyte secondary battery. SOLUTION: The separator with heat-resistant insulating layer 14 is provided with: a polyolefin layer 14A; and a heat-resistant insulating layer 14B containing heat-resistant resin and oxidation-resistant ceramic particles on one side or both sides of the polyolefin layer. The nonaqueous electrolyte secondary battery is provided with: a positive electrode 11; a negative electrode 12; the separator with heat-resistant layer; and nonaqueous electrolyte, and open circuit voltage of a pair of the positive electrode and the negative electrode is 4.25 to 4.55 V at full charge. The heat-resistant insulating layer contains 60 to 90% oxidation-resistant ceramic particles, and is disposed at least between the positive electrode and the polyolefin layer. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了提供隔离件，其具有耐热绝缘层，其提供了在过热时的安全性和高温循环特性两者均优异的非水电解质二次电池，即使设定了充电上限电压 在非水电解质二次电池中高压。 解决方案：具有耐热绝缘层14的隔板设置有：聚烯烃层14A; 以及在聚烯烃层的一侧或两侧上含有耐热树脂和抗氧化陶瓷颗粒的耐热绝缘层14B。 非水电解质二次电池设置有：正极11; 负极12; 隔板具有耐热层; 和非水电解质，一对正极和负极的开路电压在满充电下为4.25〜4.55V。 耐热绝缘层含有60-90％的抗氧化陶瓷颗粒，并且至少设置在正极和聚烯烃层之间。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2006185806A

公开(公告)日：2006-07-13

申请号：JP2004379732

申请日：2004-12-28

Applicant: SONY CORP

Inventor： TSUJIMOTO TAKASHI

IPC: H01M10/05 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/058

Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing a non-aqueous electrolyte secondary battery in which impregnation of an electrolytic liquid can be increased without adding a great change in the existing facility and without incurring degradation in productivity. SOLUTION: A wound electrode body is manufactured by winding a positive electrode 2 having a positive electrode active material layer on both main surfaces of a belt-shape positive electrode current collector and a negative electrode 3 having a negative electrode active material on both main surfaces of a belt-shape negative electrode current collector through a belt-shape separator 4, and by housing this wound electrode body in a battery can 1, a non-aqueous electrolytic liquid in the temperature range of 30°C or more and boiling point or less, for example, 30°C or more and 90°C or less is filled in the battery can 1. Thereby, impregnation of the electrolytic liquid to the positive electrode active material layer and the negative electrode active material layer is improved. COPYRIGHT: (C)2006,JPO&NCIPI

公开(公告)号：JP2013016328A

公开(公告)日：2013-01-24

申请号：JP2011147668

申请日：2011-07-01

Applicant: Sony Corp ,  ソニー株式会社

Inventor： IDA TAKAHITO ,  KURATSUKA MAKI ,  TSUJIMOTO TAKASHI

IPC: H01M2/26 ,  H01M10/04

CPC classification number: Y02E60/12

Abstract: PROBLEM TO BE SOLVED: To provide a cell which exhibits excellent weldability while reducing internal short circuit due to generation of sputter.SOLUTION: The cell comprises a wound electrode body having a positive electrode and a negative electrode, an electrolyte provided between the positive electrode and negative electrode, an outer can composed mainly of iron or an iron alloy and housing the wound electrode body, and a first negative electrode lead and a second negative electrode lead which connect the negative electrode and the outer can electrically. The first negative electrode lead and second negative electrode lead are a clad material having a nickel layer and a copper layer. Multiple protrusions are provided on the surface of the nickel layer in the first negative electrode lead, the nickel layer in the second negative electrode lead is welded to the outer can, and the nickel layer in the first negative electrode lead is welded to the copper layer of the second negative electrode lead via the multiple protrusions.

Abstract translation: 要解决的问题：提供一种在减少由于溅射产生引起的内部短路的情况下具有优异焊接性的电池。 解决方案：电池包括具有正极和负极的卷绕电极体，设置在正极和负极之间的电解质，主要由铁或铁合金构成的外壳，并容纳缠绕的电极体， 以及电连接负极和外部罐的第一负极引线和第二负极引线。 第一负极引线和第二负极引线是具有镍层和铜层的复合材料。 在第一负极引线的镍层的表面上设置有多个突起，第二负极引线中的镍层焊接到外罐，将第一负极引线中的镍层焊接到铜层 的第二负极引线经由多个突起。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2010262939A

公开(公告)日：2010-11-18

申请号：JP2010163330

申请日：2010-07-20

Applicant: Sony Corp ,  ソニー株式会社

Inventor： OBANA YOSHIAKI ,  KAJITA ATSUSHI ,  TEJIMA YUKAKO ,  OGAWA KENICHI ,  TSUJIMOTO TAKASHI

IPC: H01M2/16 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide a separator with a heat-resisting insulating layer for attaining a nonaqueous electrolyte secondary battery which is excellent on both safety and high-temperature cycle characteristics in overheating even when used charge upper limit voltage is set up at a high level in a nonaqueous electrolyte secondary battery. SOLUTION: The separator 14 with a heat-resisting insulating layer includes a polyolefin layer 14A, and the heat-resisting insulating layer 14B including a heat-resistant resin and oxidation-resistant ceramic particles on its one side or both sides. The nonaqueous electrolyte secondary battery includes a positive electrode 11, a negative electrode 12, the separator with a heat-resisting insulating layer, and a nonaqueous electrolyte, and an open circuit voltage at a full-charged state per a pair of the positive electrode and the negative electrode is set up to be 4.25-4.55 V. The heat-resisting insulating layer includes the oxidation-resistant ceramic particles at a ratio of 80-90%, and is arranged between at least the positive electrode and the polyolefin layer. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种用于获得非线性电解质二次电池的耐热绝缘层的隔板，即使在设置了使用的电荷上限电压时，在过热的安全性和高温循环特性上均优异 在非水电解质二次电池中为高水平。 解决方案：具有耐热绝缘层的隔板14包括聚烯烃层14A，耐热绝缘层14B在其一侧或两侧包括耐热树脂和抗氧化陶瓷颗粒。 非水电解质二次电池包括正极11，负极12，具有耐热绝缘层的隔膜和非水电解质，以及每一对正电极和满电荷状态的开路电压，以及 负极设定为4.25〜4.55V。耐热绝缘层包括比例为80-90％的耐氧化陶瓷颗粒，并且至少设置在正极和聚烯烃层之间。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2004047183A

公开(公告)日：2004-02-12

申请号：JP2002200391

申请日：2002-07-09

Applicant: Sony Corp ,  ソニー株式会社

Inventor： TSUJIMOTO TAKASHI

IPC: H01G9/032 ,  H01B1/06 ,  H01M6/18 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/0587 ,  H01M10/40

CPC classification number: Y02E60/122

Abstract: PROBLEM TO BE SOLVED: To provide an electrolyte and a cell using it capable of improving a low temperature characteristic while maintaining a stable gel state.
SOLUTION: In a cell element 20, a positive electrode 21 and a negative electrode 22 are laminated with the electrolyte 23 in between. The electrolyte 23 is a gel electrolyte with an electrolytic solution dispersed or held in a support. The support contains a copolymer as a principal component containing polyvinylidene fluoride as a monomer unit. The electrolytic solution contains a glycol derivative such as ethylene glycol ethyl ether acetate. Since the ethylene glycol derivative is highly compatible with a copolymer containing vinylidene fluoride and it can improve ionic conductivity in low temperature, it can lower impedance in low temperature while maintaining a stable gel state.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2001345102A

公开(公告)日：2001-12-14

申请号：JP2001102690

申请日：2001-03-30

Applicant: SONY CORP

Inventor： TSUJIMOTO TAKASHI ,  YAMAMOTO YOSHIKATSU ,  KUYAMA JUNJI ,  KUMAKAWA MASASHI

IPC: H01M10/05 ,  C01B31/02 ,  H01M4/131 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/58 ,  H01M4/02 ,  H01M10/40

Abstract: PROBLEM TO BE SOLVED: To provide a secondary battery having an excellent high temperature shelf life, excellent load characteristics after use at high temperature, and excellent charging/discharging cycle characteristics. SOLUTION: A wound electrode body 20 formed by winding a belt-shaped positive electrode 21 and a belt-shaped negative electrode 22 through a separator 23 is contained in a battery can 11. The positive electrode 21 contains LixMn2-yMayO4 (Ma is at least one kind in a group comprising a metal element other than Mn, and B) and LiCoO2 or LiCo1-zMbzO2 (Mb is at least one kind in a group comprising a metal element other than Co, and B). Thereby, in the secondary battery, the high temperature storage characteristics can be increased. By specifying the average particle size of the oxides 30 μm or less, the charge/discharge cycle characteristics can be increased. By using non- graphitizable carbon in the negative electrode 22, heavy load discharge characteristics after high temperature cycles can be improved.