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1. 发明申请

WO1998008263A1 LITHIUM ION SECONDARY CELL AND ITS CATHODE 审中-公开
标题翻译：锂离子二次电池及其阴极
公开(公告)号：WO1998008263A1
公开(公告)日：1998-02-26
申请号：PCT/JP1997002778
申请日：1997-08-08
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. , OKOCHI, Masaya , KITAGAWA, Masaki , TAKEUCHI, Takashi , NISHINO, Hajime , KOSHINA, Hizuru
发明人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
IPC分类号： H01M04/58
CPC分类号： H01M4/583 , H01M4/133 , H01M4/505 , H01M4/525 , H01M10/0525
摘要： A carbon material which absorbs and discharges lithium ions and has a volume resistivity of not higher than 5.0 x 10 OMEGA cm is used as the cathode active material. Even if internal short-circuit occurs in a cell, since the volume resistivity of the carbon material is low, the sudden rise of the cell temperature can be avoided.
摘要翻译：使用吸收和排出锂离子并且体积电阻率不高于5.0×10 -3欧姆·厘米的碳材料作为阴极活性材料。即使在电池内部发生内部短路，由于碳材料的体积电阻率低，因此能够避免电池温度突然上升。

2. 发明申请

WO1997042676A1 NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
标题翻译：非电解电解质二次电池
公开(公告)号：WO1997042676A1
公开(公告)日：1997-11-13
申请号：PCT/JP1997001530
申请日：1997-05-07
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. , OURA, Takafumi , KITAGAWA, Masaki , NISHINO, Hajime , KOSHINA, Hizuru
发明人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
IPC分类号： H01M10/40
CPC分类号： H01M4/587 , H01M2/1653 , H01M2/1686 , H01M4/131 , H01M4/133 , H01M4/505 , H01M4/525 , H01M6/10 , H01M10/05 , H01M10/0525 , H01M10/0569 , H01M2300/004
摘要： The present invention relates to a nonaqueous electrolyte secondary battery, and more particularly to its separator, and it is an object thereof to prevent electrolyte leakage accident due to elevation of cell internal pressure even if the cell is exposed to high temperature without sacrificing the cell capacity. To achieve the object, by using the polyolefin group separator large in endothermic calorie per unit area by the heat of fusion in a temperature range of 70 to 150 DEG C, and selecting appropriate graphite powder for negative electrode and organic solvent in nonaqueous electrolyte, the electrolyte leakage accident can be successfully eliminated by suppressing the reaction between the cell active substance and organic solvent, thereby suppressing elevation of cell internal pressure.
摘要翻译：非水电解质二次电池技术领域本发明涉及一种非水电解质二次电池，特别涉及其隔膜，其目的在于，即使电池暴露于高温而不牺牲电池容量，也可以防止由于电池内压升高引起的电解液泄漏事故。为了达到上述目的，通过在70〜150℃的温度范围内通过熔融热使单位面积吸热量大的聚烯烃类隔板，在非水电解液中选择适当的负极和有机溶剂用石墨粉，通过抑制细胞活性物质与有机溶剂的反应，可以成功地消除电解液泄漏事故，从而抑制细胞内压升高。

3. 发明申请

WO1997039489A1 LITHIUM COBALT OXIDE CATHODIC ACTIVE MATERIAL AND SECONDARY BATTERY USING THE SAME 审中-公开
标题翻译：锂钴氧化物阴极活性材料及其二次电池
公开(公告)号：WO1997039489A1
公开(公告)日：1997-10-23
申请号：PCT/JP1997001226
申请日：1997-04-10
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. , INOUE, Kaoru , OURA, Takafumi , MURAI, Hiroyuki , KOSHINA, Hizuru
发明人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
IPC分类号： H01M04/52
CPC分类号： H01M10/0525 , H01M4/525
摘要： To obtain a secondary battery simultaneously having performances such as extremely large electric capacity, excellent discharge efficiency, high voltage, and freedom from fire in high temperature environments. The secondary battery of the invention comprises a positive electrode having lithium cobalt oxide composed of lithium, cobalt and oxygen, a negative electrode capable of intercalating and deintercalating lithium, and an electrolyte contacting with both of the positive electrode and the negative electrode. The lithium cobalt oxide is powder, and this powder has a mean particle size in a range of 5 mu m to 25 mu m. The lithium cobalt oxide has a chemical composition in which the molar ratio of said cobalt to said lithium is in a range of 0.96 to 1.04, and also has a crystallinity so that the full width of half maximum of 003 diffraction peak in X-ray diffraction using CuK alpha ray is in a range of 0.15 DEG to 0.18 DEG . The electrolyte is a non-aqueous electrolyte. The potential of the positive electrode in charged state is in a range of 4.2 V to 4.5 V to the redox potential of lithium.
摘要翻译：为了获得同时具有诸如极大电容，优异的放电效率，高电压和高温环境中的火灾的性能的二次电池。本发明的二次电池包括由锂，钴和氧组成的锂钴氧化物的正电极，能够插入和脱嵌锂的负极以及与正电极和负电极接触的电解质。锂钴氧化物为粉末，该粉末的平均粒径为5μm〜25μm的范围。所述钴酸锂的化学组成为：所述钴与所述锂的摩尔比在0.96〜1.04的范围内，并具有结晶性，使得X射线衍射中的003衍射峰的半峰全宽使用CuKα射线在0.15°至0.18°的范围内。电解质是非水电解质。正极在充电状态的电位在锂的氧化还原电位的4.2V至4.5V的范围内。

4. 发明申请

WO1997036338A1 NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES 审中-公开
标题翻译：非水电解质二次电池
公开(公告)号：WO1997036338A1
公开(公告)日：1997-10-02
申请号：PCT/JP1997001040
申请日：1997-03-27
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. , OKOCHI, Masaya , KITAGAWA, Masaki , TAKEUCHI, Takashi , INOUE, Kaoru , KOSHINA, Hizuru
发明人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
IPC分类号： H01M10/40
CPC分类号： H01M10/05 , H01M2/34 , H01M4/64 , H01M6/10 , H01M10/0431 , H01M2200/00
摘要： The invention relates to a non-aqueous secondary battery comprising an electrode group composed by confronting thin positive electrode and negative electrode through a separator, and it is an object thereof to enhance the safety outstandingly without sacrificing the cell capacity more than necessary and without increasing the number of parts. To achieve the object, a metal foil for positive electrode collector is electrically connected to the positive electrode, and the exposed portion of the metal foil for positive electrode collector covers the entire outer surface of the electrode group where the negative electrode is positioned outside through the separator, and its outermost side is wrapped with a separator, and thus constituted electrode group is put into a negative polarity cell container together with non-aqueous electrolyte, and therefore in such severe conditions as to crush the cell, accidents such as cell fire and rupture can be completely eliminated.
摘要翻译：本发明涉及一种非水二次电池，其包括通过隔膜对置薄正电极和负电极构成的电极组，并且其目的是在不牺牲电池容量的情况下突出增强安全性，而不会增加电池容量零件数量。为了实现该目的，正极集电体用金属箔与正极电连接，正极集电体用金属箔的露出部覆盖负极位于外侧的电极组的整个外表面，通过分离器，其最外侧用隔膜包裹，由此构成的电极组与非水电解质一起放入负极性电池容器中，因此在诸如电池灭火等事故的严酷条件下，破裂可以完全消除。

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