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1. 发明专利

JP2004030937A Nonaqueous electrolyte solution secondary battery 审中-公开
公开(公告)号：JP2004030937A
公开(公告)日：2004-01-29
申请号：JP2002180986
申请日：2002-06-21
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： MATSUNO HIROSHI , KITAGAWA MASAKI , KATO KIYOMI , SUGAFUJI MASAYA , NUNOME JUN , YAMAMOTO NORIHIRO , SANO HIDEKI
IPC分类号： H01M10/05 , H01M4/131 , H01M4/525 , H01M10/0566 , H01M4/02 , H01M4/58 , H01M10/40
CPC分类号： Y02E60/122
摘要： PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte solution secondary battery excellent in rate characteristics and charging/recharging cycle characteristics for one with a positive electrode plate, a negative electrode plate and nonaqueous electrolyte solution as main constituents.
SOLUTION: With the nonaqueous electrolyte solution secondary battery, Li
(1+X) Co
(1-X) Mg
X O
2 (0.005≤x≤0.2) is used as a positive electrode active material for the positive electrode plate 5, with a fine particle resistivity of a mixture of the positive electrode active material constituting the positive electrode and a conductive material of not more than 1.0×10
2 Ωcm and with a resistivity of the positive electrode plate 5 in a width direction of not more than 10Ωcm.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2006031987A Manufacturing method for positive electrode active material for nonaqueous electrolyte secondary batteries 有权
标题翻译：用于非电解电解质二次电池的正极电极活性材料的制造方法
公开(公告)号：JP2006031987A
公开(公告)日：2006-02-02
申请号：JP2004205574
申请日：2004-07-13
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： INOUE KAORU , KATO KIYOMI
IPC分类号： C01G53/00 , H01M4/02 , H01M4/36 , H01M4/505 , H01M4/525 , H01M10/05
CPC分类号： Y02P70/54
摘要： PROBLEM TO BE SOLVED: To provide a positive electrode active material realizing a nonaqueous electrolyte secondary battery with excellent cycle life property and storage property under high temperature environment. SOLUTION: The manufacturing method of this invention comprises (1) a process mixing a water solution of a water-soluble polymer or petroleum pitch into a raw material mixture of a lithium containing transition metal oxide, (2) a process adding an oxide or a hydroxide of at least one second metallic element chosen from a group comprising Mg, Y, Zr, Zn, Al and Sn and (3) a process baking the obtained mixture . The lithium containing transition metal oxide whose surface is coated with a carbonaceous thin film containing the oxide of the second metal is obtained. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种在高温环境下实现具有优异的循环寿命特性和储存性能的非水电解质二次电池的正极活性物质。解决方案：本发明的制造方法包括（1）将水溶性聚合物或石油沥青的水溶液混合成含锂过渡金属氧化物的原料混合物的方法，（2）将氧化物或选自Mg，Y，Zr，Zn，Al和Sn的至少一种第二金属元素的氢氧化物和（3）烘焙所得混合物的方法。得到其表面涂覆有含有第二金属的氧化物的碳质薄膜的含锂过渡金属氧化物。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005332629A Positive electrode active material for nonaqueous electrolyte secondary battery and its manufacturing method 审中-公开
标题翻译：非电解二次电池正极电极活性材料及其制造方法
公开(公告)号：JP2005332629A
公开(公告)日：2005-12-02
申请号：JP2004148004
申请日：2004-05-18
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KATO KIYOMI , INOUE KAORU
IPC分类号： H01M10/05 , H01M4/02 , H01M4/36 , H01M4/505 , H01M4/525 , H01M4/62 , H01M4/58 , H01M10/40
CPC分类号： Y02P70/54
摘要： PROBLEM TO BE SOLVED: To provide a positive electrode active material providing a nonaqueous electrolyte secondary battery whose properties in use continuously charging at a high temperature or repeating a charging and discharging cycle are improved.
SOLUTION: This positive electrode active material is composed of a particle of a lithium containing transition metal oxide expressed by a general formula LiMO
2 . The average valence of the transition metal on the surfaces is lower than the average valence in the particle, and the surface of the particle is covered with a carbonaceous material. The M in the formula is at least one kind selected from a group comprising Co, Ni and Mn.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种提供非水电解质二次电池的正极活性物质，其特性在高温下连续充电或重复充放电循环。解决方案：该正极活性物质由通式LiMO 2 表示的含锂过渡金属氧化物的颗粒组成。表面上的过渡金属的平均价态低于颗粒中的平均化合价，并且颗粒的表面被碳质材料覆盖。式中的M为选自由Co，Ni和Mn组成的组中的至少一种。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005294139A Lithium-ion secondary battery and its manufacturing method 有权
标题翻译：锂离子二次电池及其制造方法
公开(公告)号：JP2005294139A
公开(公告)日：2005-10-20
申请号：JP2004109806
申请日：2004-04-02
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KATO KIYOMI , INOUE KAORU
IPC分类号： H01M2/16 , H01M4/13 , H01M4/131 , H01M4/139 , H01M4/1391 , H01M10/05 , H01M10/052 , H01M10/0566 , H01M10/058 , H01M10/40 , H01M4/04
CPC分类号： Y02P70/54
摘要： PROBLEM TO BE SOLVED: To solve a problem that a discharge characteristic is reduced in a lithium-ion secondary battery in which a heat resistant porous film layer is formed on an electrode plate for the purpose of improving safety.
SOLUTION: This is the lithium ion secondary battery equipped with (a) a positive electrode composed of a complex lithium oxide, (b) a negative electrode composed of a material capable of electrochemically storing and releasing lithium, (c) a separator, (d) a nonaqueous electrolytic solution, and (e) a porous film formed on either one surface of the positive electrode and the negative electrode. This is the lithium ion secondary battery in which that porous film is composed of inorganic oxide particles and a binder, and on the surface side and the electrode side of the porous film (side contacted with positive electrode and negative electrode), particle diameters of the inorganic oxide particles constituting the porous film are respectively different, and the particle diameters of the inorganic oxide particles of the surface side of the porous film are larger than those of the inorganic oxide particles of the electrode side of the porous film.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题为了提高安全性，为了解决在电极板上形成耐热性多孔膜层的锂离子二次电池的放电特性降低的问题。解决方案：这是配备有（a）由复合氧化锂构成的正极的锂离子二次电池，（b）由能够电化学储存和释放锂的材料构成的负极，（c）隔板，（d）非水电解液，（e）在正极和负极的一个表面上形成的多孔膜。这是由多孔膜由无机氧化物粒子和粘合剂构成的锂离子二次电池，在多孔膜的表面侧和电极侧（与正极和负极接触的一侧）的粒径为构成多孔膜的无机氧化物粒子分别不同，多孔膜的表面侧的无机氧化物粒子的粒径大于多孔膜的电极侧的无机氧化物粒子的粒径。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2001210318A MANUFACTURING METHOD OF NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY 失效
公开(公告)号：JP2001210318A
公开(公告)日：2001-08-03
申请号：JP2000016740
申请日：2000-01-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KASHIHARA YOSHIHIRO , SANO HIDEKI , KITAGAWA MASAKI , TSURUTA KUNIO , KATO KIYOMI , HIGO HIDEKI
IPC分类号： H01M4/62 , H01M4/139 , H01M10/05 , H01M4/04 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a nonaqueous electrolytic solution secondary battery in which charge-discharge properties such as a reduction of generated gas volume at the initial charge, discharge rate property, charge-discharge cycle life or the like have been improved. SOLUTION: After water dispersion mixture paste is coated on a negative electrode current collector, treatment temperature in heat treatment is set at 120 deg.C-250 deg.C, and water-based thickener CMC is made to be decomposed, and the initial charge gas generation is restrained. Further, by using a binder which is superior in heat resistance, a binding strength between the mixture paste and core materials is maintained, and charge-discharge properties such as the reduction of generated gas volume at the initial charge, discharge rate property, charge-discharge cycle life or the like are improved.

6. 发明专利

JP2003197172A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
公开(公告)号：JP2003197172A
公开(公告)日：2003-07-11
申请号：JP2001393417
申请日：2001-12-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SANO HIDEKI , SUGAFUJI MASAYA , KITAGAWA MASAKI , YAMAMOTO NORIHIRO , KATO KIYOMI , MATSUNO HIROSHI , NUNOME JUN , KAWADATE YUTAKA
IPC分类号： H01M2/06 , H01M2/14 , H01M2/16 , H01M2/30 , H01M6/10 , H01M10/05 , H01M10/0587 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery with high charge discharge cycle characteristics and high storage characteristics. SOLUTION: This nonaqueous electrolyte secondary battery is composed of an electrode plate group formed by winding a positive electrode plate and a negative electrode plate through a separator comprising a single layer or a multiple layer of polyolefin resin; a nonaqueous electrolyte; and an envelope body in which the electrode group and the nonaqueous electrolyte are housed, and (1) the separator has at least one layer comprising polypropylene resin, (2) the layer comprising the polypropylene resin containing an anti-oxidizing agent having a melting point of 60°C or more, and (3) the layer comprising the polypropylene resin comes in contact with the positive electrode. COPYRIGHT: (C)2003,JPO

7. 发明专利

JP2002025612A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2002025612A
公开(公告)日：2002-01-25
申请号：JP2000206470
申请日：2000-07-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KATO KIYOMI , MURAI SUKEYUKI , KITAGAWA MASAKI , INABA YUKISHIGE , NIWA YUKIMASA
IPC分类号： C01B31/02 , H01M4/36 , H01M10/05 , H01M10/052 , H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M10/058 , H01M10/40 , H01M4/58
摘要： PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery with suppressed gas generation in high-temperature storage and a high charge/discharge cycle characteristic by including at least one of vinylene carbonate and a vinylene carbonate derivative in a nonaqueous electrolyte. SOLUTION: This nonaqueous electrolyte secondary battery is composed of a positive electrode comprising a composite oxide of a material capable of storing and releasing lithium, lithium and at least one transition metal, a negative electrode comprising graphite, and the nonaqueous electrolyte, and at least one of vinylene carbonate and the vinylene carbonate derivative is included 5-5000 ppm in the nonaqueous electrolyte.

8. 发明专利

JP2001223025A LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JP2001223025A
公开(公告)日：2001-08-17
申请号：JP2000360633
申请日：2000-11-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKANISHI SHINJI , IWAMOTO KAZUYA , MURAI SUKEYUKI , KATO KIYOMI , INABA YUKISHIGE , WATANABE SHOICHIRO , KOSHINA HIDE
IPC分类号： C01B31/02 , H01M4/36 , H01M4/485 , H01M4/587 , H01M4/62 , H01M6/16 , H01M10/05 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M10/42 , H01M10/40 , H01M4/02 , H01M4/58
摘要： PROBLEM TO BE SOLVED: To provide a lithium secondary battery which has a high rate property and a low-temperature property in which the amount of generated gas is less, and discharge characteristics are superior. SOLUTION: LiCoO2 or the like in which CaO and Cr2O3 are mixed is used as a positive electrode active substance, and combining this and a nonaqueous electrolyte containing a mixed electroltye salt which contains fluorine-containing inorganic anion lithium salt and lithium imide salt together, they are used for the lithium secondary battery.

9. 发明专利

JP2000090987A METHOD FOR MEASURING DISCHARGING CAPACITY OF NON- AQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JP2000090987A
公开(公告)日：2000-03-31
申请号：JP25529798
申请日：1998-09-09
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KASHIHARA YOSHIHIRO , KITAGAWA MASAKI , SUGAFUJI MASAYA , KATO KIYOMI
IPC分类号： H02J7/00 , G01R31/36 , H01M10/05 , H01M10/0566 , H01M10/48
摘要： PROBLEM TO BE SOLVED: To shorten the measuring time without being effected by the ambient temperature at the time of measuring discharging capacity by discharging a secondary battery in the full charge condition while dividing the discharge into plural times, and making a discharging current value of each discharge time larger for preceding discharge, and computing the discharge capacity at each time to be summed. SOLUTION: A secondary battery in the full charge condition is discharged at the predetermined discharging current values, and the discharge continuing time till the voltage achieves the discharge stop voltage and the discharging current value are multiplied with each other so as to measure the discharging capacity of the non-aqueous electrolyte secondary battery. At this stage, discharge from the full charge condition is performed while dividing the discharge into two or three times. Furthermore, discharge is performed so that the discharging current value at each time is made larger for preceding discharge. Discharging capacity at each time computed on the basis of the discharge continuing time and the discharging current value is summed so as to obtain the discharging capacity of this secondary battery. At this stage, 1/2 of the discharging capacity as a reference of the discharge is desirably discharged at the first discharge time so as to shorten the discharging time, and the residual capacity is discharged at the following discharge so as to restrict the occurrence of a measuring error.

10. 发明专利

JP2000040499A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JP2000040499A
公开(公告)日：2000-02-08
申请号：JP20743098
申请日：1998-07-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KATO KIYOMI , OURA TAKAFUMI , KITAGAWA MASAKI , KOSHINA HIDE
IPC分类号： H01M2/16 , H01M10/05 , H01M10/052 , H01M10/0566 , H01M10/058 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To improve a charging/discharging cycle service life characteristic by using a polyolefine microporous film having metallic carbonate particles or metallic oxide particles fixed to the surface contacting with at least either of a positive electrode and a negative electrode, as a separator. SOLUTION: A material by fixing calcium carbonate particles to polyethylene one surface is used as a separator 5, and a negative electrode plate 3, the separator 5 and a positive electrode plate 1 are wound in spiral so that the rough surface part of this separator is opposed to a positive electrode to constitute an electrode body (a plate group). A polyolefine microporous film having metallic carbonate particles or metallic oxide particles fixed to the surface contacting with at least either of the positive electrode and a negative electrode, is used as the separator 5. Thus, since a recess/projection is formed in the separator 5, an electrolyte can be abundantly preserved in the clearance part formed between the positive electrode plate 1 or the negative electrode plate 3 and the separator 5 to restrain drying of the electrolyte caused by irreversible reaction by generation of gas in the electrolyte and the positive/negative electrodes.

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