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公开(公告)号：US07811696B2
公开(公告)日：2010-10-12
申请号：US11330183
申请日：2006-01-12
Applicant: Masato Fujikawa , Akira Nagasaki , Tetsu Hashimoto , Kaoru Inoue , Mikinari Shimada
Inventor： Masato Fujikawa , Akira Nagasaki , Tetsu Hashimoto , Kaoru Inoue , Mikinari Shimada
CPC classification number: H01M10/052 , H01M2/145 , H01M2/18 , H01M4/04 , H01M10/0431 , H01M10/0587 , H01M10/4235 , H01M2004/027 , Y10T29/49115
Abstract: In a lithium secondary battery of the present invention, the positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector, the negative electrode includes a negative electrode current collector and a negative electrode active material layer carried on the negative electrode current collector, a heat-resistant layer is formed on the negative electrode, and an insulating tape is attached onto at least a part of the exposed portion of the positive electrode current collector that is opposite to the end of the negative electrode active material layer. Thus, by forming the heat-resistant layer on the negative electrode and attaching the insulating tape onto a part of the exposed portion of the positive electrode current collector, it is possible to efficiently provide a lithium secondary battery exhibiting high safety.
Abstract translation: 在本发明的锂二次电池中，所述正极具有负极集电体和负极活性物质层，负极包括负极集电体和负极活性物质层 承载在负极集电体上，在负极上形成耐热层，绝缘带附着在正极集电体的暴露部分的与负极端相反的至少一部分上 电极活性物质层。 因此，通过在负极上形成耐热层并将绝缘带附着在正极集电体的露出部分的一部分上，可以有效地提供具有高安全性的锂二次电池。
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公开(公告)号：US20100233524A1
公开(公告)日：2010-09-16
申请号：US12675296
申请日：2009-05-26
Applicant: Yasuhiko Hina , Akira Nagasaki , Tetsu Hashimoto
Inventor： Yasuhiko Hina , Akira Nagasaki , Tetsu Hashimoto
CPC classification number: H01M2/0225 , H01M2/022 , H01M2/26 , H01M4/13 , H01M10/04 , H01M10/052 , H01M10/058 , H01M2010/4292
Abstract: A cylindrical non-aqueous electrolyte secondary battery of the invention includes: an approximately columnar electrode group having a strip-shaped positive electrode including a positive electrode material mixture layer formed on a positive electrode current collector and a strip-shaped negative electrode including a negative electrode material mixture layer formed on a negative electrode current collector that are spirally wound with a strip-shaped separator interposed therebetween; a non-aqueous electrolyte; a bottomed cylindrical battery case housing the electrode group and the non-aqueous electrolyte; and a negative electrode lead electrically connecting the negative electrode and the battery case. The negative electrode includes a double-coated portion having a negative electrode material mixture layer formed on both surfaces of the negative electrode current collector, a single-coated portion having a negative electrode material mixture layer formed on one surface of the negative electrode current collector, and an uncoated portion where both surfaces of the negative electrode current collector are exposed. The single-coated and uncoated portions are disposed at an outermost layer of the electrode group. The negative electrode current collector exposed portions of the single-coated and uncoated portions are in direct contact with an inner surface of the battery case.
Abstract translation: 本发明的圆柱形非水电解质二次电池包括：具有带状正极的近似柱状电极组，其包括在正极集电体上形成的正极合剂层和包含负极的带状负极 形成在负极集电体上的材料混合物层，其间插入有带状隔板螺旋卷绕; 非水电解质; 容纳电极组和非水电解质的有底圆筒形电池盒; 以及将负极和电池壳体电连接的负极引线。 负极包括在负极集电体的两面形成负极材料混合层的双面涂布部，在负极集电体的一个面上形成有负极复合材料层的单涂层部， 以及露出负极集电体的两面的未涂布部。 单涂层和未涂覆部分设置在电极组的最外层。 单涂层和未涂覆部分的负电极集电体露出部分与电池壳体的内表面直接接触。
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公开(公告)号：US07153606B2
公开(公告)日：2006-12-26
申请号：US10826389
申请日：2004-04-19
Applicant: Takayuki Shirane , Tetsu Hashimoto , Naoto Arai , Futoshi Tanigawa
Inventor： Takayuki Shirane , Tetsu Hashimoto , Naoto Arai , Futoshi Tanigawa
CPC classification number: H01M2/263 , H01M10/0431 , H01M10/05
Abstract: A secondary battery including an electrode group formed by winding a positive electrode and a negative electrode with the interposition of a separator, the positive electrode includes a belt-shaped positive electrode core and a positive electrode material mixture carried on the positive electrode core, the negative electrode includes a belt-shaped negative electrode core and a negative electrode material mixture carried on the negative electrode core, at least one of the positive electrode and the negative electrode has an end portion parallel to the lengthwise direction thereof exposing the core, the end portion positioned at an end face of the electrode group is directly connected to a current collector plate, and at least part of the current collector plate is exposed outside at the bottom of a battery case.
Abstract translation: 包括通过缠绕正极和负极而插入隔膜而形成的电极组的二次电池，正电极包括带状正电极芯和承载在正电极芯上的正极材料混合物，负极 电极包括承载在负极芯上的带状负极芯和负极材料混合物，正极和负极中的至少一个具有平行于其长度方向的端部暴露芯，端部 位于电极组的端面的电极直接与集电板连接，并且集电板的至少一部分露出在电池壳体的底部的外部。
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公开(公告)号：US20060154139A1
公开(公告)日：2006-07-13
申请号：US11330183
申请日：2006-01-12
Applicant: Masato Fujikawa , Akira Nagasaki , Tetsu Hashimoto , Kaoru Inoue , Mikinari Shimada
Inventor： Masato Fujikawa , Akira Nagasaki , Tetsu Hashimoto , Kaoru Inoue , Mikinari Shimada
CPC classification number: H01M10/052 , H01M2/145 , H01M2/18 , H01M4/04 , H01M10/0431 , H01M10/0587 , H01M10/4235 , H01M2004/027 , Y10T29/49115
Abstract: In a lithium secondary battery of the present invention, the positive electrode includes a positive electrode current collector and a positive electrode active material layer carried on the positive electrode current collector, the negative electrode includes a negative electrode current collector and a negative electrode active material layer carried on the negative electrode current collector, a heat-resistant layer is formed on the negative electrode, and an insulating tape is attached onto at least a part of the exposed portion of the positive electrode current collector that is opposite to the end of the negative electrode active material layer. Thus, by forming the heat-resistant layer on the negative electrode and attaching the insulating tape onto a part of the exposed portion of the positive electrode current collector, it is possible to efficiently provide a lithium secondary battery exhibiting high safety.
Abstract translation: 在本发明的锂二次电池中，所述正极具有负极集电体和负极活性物质层，负极包括负极集电体和负极活性物质层 承载在负极集电体上，在负极上形成耐热层，绝缘带附着在正极集电体的暴露部分的与负极端相反的至少一部分上 电极活性物质层。 因此，通过在负极上形成耐热层并将绝缘带附着在正极集电体的露出部分的一部分上，可以有效地提供具有高安全性的锂二次电池。
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