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1. 发明授权

EP2383822B1 LITHIUM ION CELL 有权转让
标题翻译：锂离子电池
公开(公告)号：EP2383822B1
公开(公告)日：2018-03-14
申请号：EP10733513.5
申请日：2010-01-21
申请人： NEC Energy Devices, Inc.
发明人： KANEKO, Shinako , ISHIKAWA, Hitoshi , KONO, Yasutaka , HASHIZUME, Yoko
IPC分类号： H01M4/36 , H01M4/587 , H01M4/62 , H01M4/133 , H01M10/0525 , H01M10/0565 , H01M10/0567 , H01M10/0568 , H01M10/0569 , H01M10/0566 , H01M10/0587 , H01M10/42 , H01M4/02
CPC分类号： H01M4/583 , H01M4/133 , H01M4/366 , H01M4/587 , H01M4/62 , H01M10/0525 , H01M10/0565 , H01M10/0566 , H01M10/0567 , H01M10/0569 , H01M10/0587 , H01M10/4235 , H01M2004/021 , H01M2300/0045 , H01M2300/0085 , Y02E60/122 , Y02T10/7011
摘要： There is provided a lithium ion battery which maintains the flame retardancy of an electrolyte over a long period of time, has high energy density, and has improved charge/discharge cycle characteristics, high temperature storage characteristics, and rate characteristics. The lithium ion battery according to the present exemplary embodiment is a lithium ion battery comprising an electrolyte containing at least an ionic liquid and a lithium salt, a positive electrode, and a negative electrode, wherein the negative electrode includes a negative electrode active material which is a carbon material treated with a surface treatment agent.

2. 发明公开

EP2693517A1 BATTERY PACK 有权转让
标题翻译：电池组
公开(公告)号：EP2693517A1
公开(公告)日：2014-02-05
申请号：EP11862421.2
申请日：2011-09-07
申请人： NEC Energy Devices, Inc.
发明人： SUZUKI, Toru
IPC分类号： H01M2/10 , H01M2/12
CPC分类号： H01M2/1094 , H01M2/0207 , H01M2/0287 , H01M2/1061 , H01M2/1072 , H01M10/0481 , H01M10/54 , Y02W30/84
摘要： In order to provide a battery pack to which a reuse prevention measure is applied in such a way that unit batteries become damaged and useless after the battery pack is disassembled, a battery pack of the present invention is characterized by including a plurality of unit batteries 100 stacked and bonded together with a two-sided adhesive tape 460, the unit batteries 100 including a laminate film casing material on which a fusion-bonding portion is formed to seal an electrode laminated body that includes a sheet positive electrode, a sheet negative electrode, and a separator, and an electrolytic solution, wherein a bonding strength of the two-sided adhesive tape 460 bonding the unit batteries 100 together is larger than a minimum bonding strength of the fusion-bonding portion.
摘要翻译：本发明的电池组的特征在于，为了提供应用了再利用防止措施的电池组，使得在拆卸电池组后单元电池损坏而无用，本发明的电池组的特征在于包括多个单元电池100 利用双面粘合带460层叠并粘合在一起，单体电池100包括其上形成熔合部分的层合膜外壳材料，以密封包括片状正电极，片状负电极和片状负电极的电极层叠体，隔板和电解液，其中将单元电池100接合在一起的双面胶带460的接合强度大于熔接部分的最小接合强度。

3. 发明公开

EP2693515A1 BATTERY PACK AND ELECTRIC BICYCLE 审中-公开
标题翻译：电池组和电动自行车
公开(公告)号：EP2693515A1
公开(公告)日：2014-02-05
申请号：EP11862185.3
申请日：2011-09-07
申请人： NEC Energy Devices, Inc.
发明人： SUZUKI, Toru
IPC分类号： H01M2/10 , B62J11/00 , B62M6/40
CPC分类号： H01M2/1072 , B62K2208/00 , B62M6/90 , H01M2/1016 , H01M2/1077 , H01M2/1083 , H01M2/202 , H01M2/266
摘要： To provide a battery pack that is less likely to be affected by vibrations, shocks and the like and has a stable characteristic, and an electric bicycle that uses the battery pack.
A battery pack includes: battery connecting structures in which a plurality of flat batteries is placed; cushioning members that are disposed in two directions, which cross each other at right angles, of outer surfaces of the battery connecting structures; and a housing section that houses the battery connecting structures in such a way that clearance between outer surfaces of the cushioning members of one direction is positive, and that clearance between outer surfaces of the cushioning members of the other direction is negative.
摘要翻译：为了提供不太可能受振动，冲击等影响并具有稳定特性的电池组以及使用该电池组的电动自行车。电池组包括：其中放置有多个扁平电池的电池连接结构; 在所述电池连接结构体的外表面上，在彼此正交的两个方向上配置的缓冲部件，以及容纳部分，其容纳电池连接结构，使得一个方向的缓冲构件的外表面之间的间隙为正，并且另一个方向的缓冲构件的外表面之间的间隙为负。

4. 发明公开

EP2690454A1 DEVICE FOR MEASURING DEGRADATION, RECHARGEABLE BATTERY PACK, METHOD FOR MEASURING DEGRADATION, AND PROGRAM 有权转让
标题翻译： VORRICHTUNG ZUR DEGRADATIONSMESSUNG，AKKUMULATORPACK，VERFAHREN ZUR DEGRADATIONSMESSUNG UND PROGRAMM
公开(公告)号：EP2690454A1
公开(公告)日：2014-01-29
申请号：EP11862624.1
申请日：2011-12-28
申请人： NEC Energy Devices, Inc. , NEC Corporation, Incorporated in Japan
发明人： SUZUKI, Shin , TASHIRO, Yoichiro
IPC分类号： G01R31/36
CPC分类号： G01R31/3606 , G01R31/3624 , G01R31/3658 , G01R31/3679
摘要： A battery sensing section measures a voltage across a secondary battery. A current sensing section measures a current flowing through the secondary battery. A control section holds the value of an external impedance present in a discharge path outside the secondary battery, discharges the secondary battery from a first time to a second time at which an integrated discharge capacity based on a measured discharge current becomes equal to a predetermined discharge capacity reference value, calculates the internal impedance present in the secondary battery at the second time based on the measured voltage, calculates the second open voltage at the second time by multiplying the sum of the external impedance and the internal impedance by the measured discharge current, and calculates the recovered capacity of the secondary battery based on the first open voltage at the first time, the second open voltage and the discharge capacity reference value.
摘要翻译：电池感测部分测量二次电池两端的电压。电流检测部分测量流经二次电池的电流。控制部保持存在于二次电池外部的放电路径中的外部阻抗的值，将二次电池从第一时间排出到第二次，在该时间内，基于测量的放电电流的积分放电容量等于预定的放电容量基准值，基于测量电压计算第二次存在于二次电池中的内部阻抗，通过将外部阻抗和内部阻抗之和乘以测量的放电电流来计算第二次的第二开路电压，并且基于第一次的第一开路电压，第二开路电压和放电容量基准值来计算二次电池的恢复容量。

5. 发明公开

EP2383822A1 LITHIUM ION CELL 有权转让
标题翻译：锂IONEN-AKKU
公开(公告)号：EP2383822A1
公开(公告)日：2011-11-02
申请号：EP10733513.5
申请日：2010-01-21
申请人： NEC Energy Devices, Inc.
发明人： KANEKO, Shinako , ISHIKAWA, Hitoshi , KONO, Yasutaka , HASHIZUME, Yoko
IPC分类号： H01M4/587 , H01M4/36 , H01M10/0525 , H01M10/0565 , H01M10/0567 , H01M10/0568 , H01M10/0569
CPC分类号： H01M4/583 , H01M4/133 , H01M4/366 , H01M4/587 , H01M4/62 , H01M10/0525 , H01M10/0565 , H01M10/0566 , H01M10/0567 , H01M10/0569 , H01M10/0587 , H01M10/4235 , H01M2004/021 , H01M2300/0045 , H01M2300/0085 , Y02E60/122 , Y02T10/7011
摘要： There is provided a lithium ion battery which maintains the flame retardancy of an electrolyte over a long period of time, has high energy density, and has improved charge/discharge cycle characteristics, high temperature storage characteristics, and rate characteristics. The lithium ion battery according to the present exemplary embodiment is a lithium ion battery comprising an electrolyte containing at least an ionic liquid and a lithium salt, a positive electrode, and a negative electrode, wherein the negative electrode includes a negative electrode active material which is a carbon material treated with a surface treatment agent.
摘要翻译：提供了一种锂离子电池，其长期维持电解质的阻燃性，具有高能量密度，并且具有改善的充放电循环特性，高温存储特性和速率特性。根据本示例性实施方式的锂离子电池是包含至少含有离子液体和锂盐，正极和负极的电解质的锂离子电池，其中，所述负极包括负极活性物质，用表面处理剂处理的碳材料。

6. 发明公开

EP2360770A2 Stacked battery 有权转让
标题翻译： Stapelbatterie
公开(公告)号：EP2360770A2
公开(公告)日：2011-08-24
申请号：EP11165459.6
申请日：2007-09-07
申请人： NEC Energy Devices, Inc.
发明人： Daidoji, Takato , Kumeuchi, Tomokazu , Zama, Koichi
IPC分类号： H01M10/04 , H01M2/26 , H01M2/02 , H01M2/30 , H01M10/0525 , H01M10/0585
CPC分类号： H01M2/266 , H01M2/021 , H01M2/0212 , H01M2/30 , H01M10/0413 , H01M10/0436 , H01M10/0525 , H01M10/0585 , Y10T29/49108
摘要： A stacked battery (1), comprising:
positive electrode current collection tab groups, each being formed by laying a plurality of positive electrode current collection tabs (7), negative electrode current collection tab groups, each being formed by laying a plurality of negative electrode current collection tabs one (8) on the other, the positive electrode current collection tabs (7) and the negative electrode current collection tabs (8) being drawn out from a stacked member (2) formed by laying positive electrodes (4) and negative electrodes (6) alternately one on the other with separators (5) interposed between them;
a positive electrode lead terminal (9) bonded to the positive electrode current collection tab groups and a negative electrode lead terminal (10) bonded to the negative electrode current collection tab groups;
junctions being formed at the positive electrode lead terminal (9) with the positions of the positive electrode current collection tab groups displaced from each other;
junctions being formed at the negative electrode lead terminal (10) with the positions of the negative electrode current collection tab groups displaced from each other.
摘要翻译：一种叠层电池（1），其特征在于，包括：正极集电片组，分别通过设置多个正极集电片（7），负极集电片组，通过放置多个负极电流收集片1（8）之间，正电极电流收集片（7）和负极集电片（8）从由正极（4）和负极（4）形成的堆叠元件（2）电极（6）之间交替地间隔开隔板（5）; 与正极集电片组接合的正极引线端子（9）和与负极集电片组接合的负极引线端子（10）; 在正极引线端子（9）处形成有正极集电片组的位置彼此偏移的结; 在负极引线端子（10）处形成有负极集电片组的位置彼此偏移的结。

7. 发明公开

EP2330675A1 SECONDARY BATTERY 有权转让
标题翻译：二次电池
公开(公告)号：EP2330675A1
公开(公告)日：2011-06-08
申请号：EP09813154.3
申请日：2009-09-11
申请人： NEC Corporation , NEC Energy Devices, Inc.
发明人： MATSUMOTO, Kazuaki , NAKAHARA, Kentaro , IWASA, Shigeyuki , NAKANO, Kaichiro , UTSUGI, Koji , ISHIKAWA, Hitoshi , KANEKO, Shinako
IPC分类号： H01M10/05
CPC分类号： H01M10/4235 , H01M4/0421 , H01M4/13 , H01M4/131 , H01M4/133 , H01M4/139 , H01M4/62 , H01M10/0525 , H01M10/0567 , H01M10/0568 , Y10T29/49108
摘要： An object of this invention is to provide a highly safe secondary battery employing a non-flammable electrolyte solution. The secondary battery has a positive pole comprising an oxide for storing and releasing lithium ions, a negative pole comprising a carbon material for storing and releasing lithium ions, and an electrolyte solution. The electrolyte solution comprises 1.5 mol/L or more of a lithium salt, or 1.0 mol/L or more of a lithium salt and 20% by volume or more of a phosphate ester derivative.
摘要翻译：本发明的一个目的是提供一种使用不可燃的电解质溶液的高度安全的二次电池。二次电池具有包含用于储存和释放锂离子的氧化物的正极，包含用于储存和释放锂离子的碳材料的负极以及电解质溶液。电解质溶液包含1.5mol / L或更多的锂盐，或者1.0mol / L或更多的锂盐和20体积％或更多的磷酸酯衍生物。

8. 发明公开

EP2255402A1 MANUFACTURING METHOD AND MANUFACTURING APPARATUS FOR FILM-COVERED ELECTRICAL DEVICE 有权转让
标题翻译：对于电影方法和制造设备所覆盖电气装置
公开(公告)号：EP2255402A1
公开(公告)日：2010-12-01
申请号：EP09705274.0
申请日：2009-01-30
申请人： NEC Energy Devices, Inc. , Nissan Motor Co., Ltd.
发明人： SHIMURA, Kenichi , MOTOHASHI, Yuta , TAKAYAMA, Gen , WATANABE, Masashi
IPC分类号： H01M2/36 , H01G9/00 , H01M2/02
CPC分类号： H01M2/36 , H01G9/08 , H01G9/14 , H01G9/155 , H01M2/0217 , H01M2/0275 , H01M2/0277 , H01M2/0287 , Y02E60/13 , Y10T29/417 , Y10T29/49115 , Y10T29/53135
摘要： In a vacuum container (2), a bag-shaped laminate film (12) containing a battery element (11) and having an opening (12a) is pinched at positions corresponding to two principal surfaces (11a) of the battery element (11), the battery element (11) having a positive layer and a negative layer stacked via a separator. Pressure in the vacuum container (2) is reduced. An electrolytic solution (20) is poured from an electrolytic-solution supply line (4) into the bag-shaped laminate film (12) through the opening (12a) with pressure in the vacuum container (2) kept reduced until the entire battery element (11) is immersed in the electrolytic solution (20). The reduced pressure in the vacuum container (2) is increased to make the battery element (11) absorb the electrolytic solution (20) by means of the difference in pressure.

9. 发明公开

EP3439076A1 ELECTRODE, METHOD FOR MANUFACTURING SAME, AND SECONDARY CELL 审中-公开
公开(公告)号：EP3439076A1
公开(公告)日：2019-02-06
申请号：EP17774529.6
申请日：2017-03-21
申请人： NEC Energy Devices, Inc.
发明人： KATOU Yuukou , KONO Yasutaka
IPC分类号： H01M4/13 , H01M4/02 , H01M4/04 , H01M4/139 , H01M10/0525
摘要： The present invention has an object to provide a lithium secondary battery having excellent battery characteristics and an electrode materializing the battery, by making it easy for an electrolyte solution or a solid electrolyte being an ionic conductor to penetrate between active materials even under a low porosity condition, in a technique for raising the electrode density by making the porosity of the electrode low in order to raise the energy density. The present invention relates to an electrode for a secondary battery comprising a first electrode, a second electrode, a separating layer for spatially separating these electrodes, and an ionic conductor, the electrode comprising a current collector and an active material-containing film on the current collector, wherein a porosity per volume of the active material-containing film is 25% or less; and one or more high-porosity regions where a ratio of a maximum porosity to a minimum porosity by a trend analysis of porosity per area in the film thickness direction of an electrode cross-section is 2.2 or more are present within a range of 500 µm in radius on the electrode plane.

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