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11. 发明专利

JPS62184778A SECONDARY BATTERY 失效
公开(公告)号：JPS62184778A
公开(公告)日：1987-08-13
申请号：JP2303486
申请日：1986-02-06
申请人： SHOWA DENKO KK , HITACHI LTD
发明人： SUGIMOTO HIROYUKI , MATSUDA SHINPEI , FUJITA KAZUNORI , KATO AKIRA , MIZUMOTO MAMORU , TOYAMA ATSUKO , EBATO NOBORU
IPC分类号： H01M10/05 , H01M10/052 , H01M10/0566 , H01M10/44
摘要： PURPOSE:To reduce the amount of electrolyte solution with flat voltage maintained and to increase energy density of a battery by controlling the amount of an electrolyte solution so that a part of an electrolyte is deposited with discharge practically completed and the electrolyte is dissolved with charge practically completed. CONSTITUTION:In a secondary battery, an electrode whose reaction proceeds by doping mechanism is used in a positive electrode, a metal is used in a negative electrode, and the amount of an electrolyte solution is controlled so that a part of an electrolyte is deposited with discharge completed and the whole electrolyte is dissolved with charge completed. The deposit amount of solid phase in the maximum deposition state of the solid phase (finished state of discharge) is specified to less than 80% (volume ratio) of the amount of electrolyte solution containing solid phase, preferably less than 50%. The electrolyte solution in the maximum consumption state (finished state of charge) of the electrolyte does not contain the solid phase and it dissolves completely the electrolyte by which the conductivity of the electrolyte solution is 20% or more of the maximum conductivity, preferably 50% or more.

12. 发明专利

JPS6243066A SECONDARY BATTERY 失效
公开(公告)号：JPS6243066A
公开(公告)日：1987-02-25
申请号：JP18151185
申请日：1985-08-19
申请人： SHOWA DENKO KK , HITACHI LTD
发明人： FUJITA KAZUNORI , SUGIMOTO HIROYUKI , TOYAMA ATSUKO , EBATO NOBORU , MATSUDA SHINPEI
IPC分类号： H01M4/60
摘要： PURPOSE:To increase energy density and practicality by using a conductive polymer comprising aniline family polymer having fibrous structure as an active material of a positive electrode to form a secondary battery. CONSTITUTION:Fibrous polyaniline is formed from acidic solution containing aniline by electrolytic oxidation or chemical oxidation at high temperature. The polyaniline is mixed with acetylene black and the mixture is molded in a pellet to form a positive electrode. The conductive polymer positive electrode is combined with a negative electrode comprising alkali metal such as lithium and electrolyte obtained by dissolving lithium salt such as LiBF4 in aprotic solvent to form a secondary battery. Thereby, anion doping rate which affects energy density is increased, and charge-discharge cycle life is lengthened to increase practicality.

13. 发明专利

JPS6220243A ELECTRODE OF SECONDARY CELL AND ITS MANUFACTURE 失效
公开(公告)号：JPS6220243A
公开(公告)日：1987-01-28
申请号：JP15824785
申请日：1985-07-19
申请人： SHOWA DENKO KK , HITACHI LTD
发明人： MIZUMOTO MAMORU , SUGIMOTO HIROYUKI , KATO AKIRA , TOYAMA ATSUKO , FUJITA KAZUNORI , MATSUDA SHINPEI
IPC分类号： H01M4/137 , H01M4/1399 , H01M4/66
摘要： PURPOSE:To reduce the number of manufacture processes of an electrode for a secondary cell, by separating polyaniline which comprizes a conductive highpolymer as an electrode active substance through an electrolytic polymerization over the surface of an electrode base consisting of a two-dimensional meshy metal. CONSTITUTION:Over the surface of a two-dimensional meshy metal, selected from stainless steel, titanium, niobium, tantalum, tungsten, tin, paradium, lutenium, rhodium, iridium, platinum, and gold, polyaniline which comprizes a conductive highpolymer as an electrode active substance is separated by an electrolytic polymerization to make an electrode for a secondary cell. In such a way, as well as moderating a contraction produced in drying and preventing tearing off of the polyaniline from the electrode, a spreading process of the active substance over the electrode base is omitted, and such an electrode can be incorporated directly in the cell. Therefore, the manufacture is much easier and the service life of the cell can be improved.

14. 发明专利

JPS6168870A Secondary battery 失效
标题翻译：二次电池
公开(公告)号：JPS6168870A
公开(公告)日：1986-04-09
申请号：JP18959584
申请日：1984-09-12
申请人： Hitachi Ltd , Showa Denko Kk
发明人： NISHIMURA SHIGEOKI , FUJITA KAZUNORI , MATSUDA SHINPEI , SUGIMOTO HIROYUKI , TOYAMA ATSUKO , EBATO NOBORU , HIDA HIROSHI
IPC分类号： H01M4/1399 , H01M4/60 , H01M10/0566
CPC分类号： H01M4/60
摘要： PURPOSE:To obtain a polymer secondary battery whose self discharge is decreased by washing electrode forming material with fluid in a supercritical state before or after forming an electrode. CONSTITUTION:An electrode constituting material, especially a conductive organic polymer having conjugated double bond, is washed with fluid in supercritical state. By this washing, impurities such as catalyst for polymerization existing in the conductive polymer having conjugated double bond are removed. Therefore, self discharge of a polymer secondary battery is decreased.
摘要翻译：目的：为了获得在形成电极之前或之后通过用超临界状态的流体清洗电极形成材料而自放电的聚合物二次电池。构成：电极构成材料，特别是具有共轭双键的导电有机聚合物，用超临界状态的流体洗涤。通过这种洗涤，除去存在于具有共轭双键的导电聚合物中的诸如用于聚合的催化剂的杂质。因此，聚合物二次电池的自放电减少。

15. 发明专利

JPS62186461A SHEET TYPE SECONDARY BATTERY 失效
公开(公告)号：JPS62186461A
公开(公告)日：1987-08-14
申请号：JP2590486
申请日：1986-02-10
申请人： SHOWA DENKO KK , HITACHI LTD
发明人： EBATO NOBORU , FUJITA KAZUNORI , SUGIMOTO HIROYUKI , TOYAMA ATSUKO , MATSUDA SHINPEI , KATO AKIRA , MIZUMOTO MAMORU
IPC分类号： H01M2/02 , H01M10/05 , H01M10/052 , H01M10/058
摘要： PURPOSE:To prevent the leakage of the electrolyte to elongate the life time of a secondary battery using an overcoating material made of a metal foil not making alloy with alkaline metals such as lithium coated with synthetic resin for at least the negative electrode. CONSTITUTION:An overcoating foil of a metal not making alloy with alkaline metals such as lithium e.g. stainless steel foil 1, instead of aluminum foil, is coated with an adhesive polypropylene layer 2 on the outside surface and an adhesive low density polyethylene base layer 3 on the inside surface and pressed and formed to a multilayer foil for the overcoating material A of the negative electrode. Thereby the leakage of the electrolyte of a sheet type secondary battery using an alkaline metal for the negative electrode can be prevented to elongate the life time.

16. 发明专利

JPS6168869A Battery 失效
标题翻译：电池
公开(公告)号：JPS6168869A
公开(公告)日：1986-04-09
申请号：JP18959484
申请日：1984-09-12
申请人： Hitachi Ltd , Showa Denko Kk
发明人： SUGIMOTO HIROYUKI , FUJITA KAZUNORI , NISHIMURA SHIGEOKI , EBATO NOBORU , TOYAMA ATSUKO , MATSUDA SHINPEI
IPC分类号： H01M4/06 , H01M4/137 , H01M4/60
CPC分类号： H01M10/05 , H01M4/60
摘要： PURPOSE:To obtain a battery capable of high current density discharge by using a polymer having conjugated double bond in its principal chain obtained by synthesizing it on conductive fibers by electrolytic polymerization as a polymer electrode. CONSTITUTION:An electrode having a thin polymer layer and large surface area is formed by electrolytically polymerizing polymer on conductive fibers. For example, polythiophene is obtained by electrolytical polymerization on carbon fibers by using a 0.5mm thick pitch family carbon fiber plate as an electrode, and acetonitrile solution containing 0.1mol/l of (C2H5)NBF4 and 0.1mol/l of thiophene as an electrolyte. This carbon fiber is washed with purified acetonitrile, and cut in a disk to form a positive electrode. A battery is assembled with this positive electrode, a lithium negative electrode, and an electrolyte made of propylene carbonate solution containing lithium perchlorate.
摘要翻译：目的：通过使用通过电解聚合在导电纤维上合成获得的主链中具有共轭双键的聚合物作为聚合物电极，获得能够进行高电流密度放电的电池。构成：通过在导电纤维上电解聚合聚合物，形成具有聚合物薄层并且表面积大的电极。例如，通过使用0.5mm厚的沥青家族碳纤维板作为电极，在碳纤维上进行电解聚合得到聚噻吩，将含有0.1mol / l（C2H5）NBF4和0.1mol / l噻吩作为电解质的乙腈溶液。用纯化的乙腈洗涤该碳纤维，切成圆盘形成正极。电池组装有该正极，锂负电极和由含有高氯酸锂的碳酸丙烯酯溶液制成的电解质。

17. 发明专利

JPS6168868A Sheet-shaped battery 失效
标题翻译：板形电池
公开(公告)号：JPS6168868A
公开(公告)日：1986-04-09
申请号：JP18959384
申请日：1984-09-12
申请人： Hitachi Ltd , Showa Denko Kk
发明人： EBATO NOBORU , FUJITA KAZUNORI , NISHIMURA SHIGEOKI , SUGIMOTO HIROYUKI , TOYAMA ATSUKO , HIDA HIROSHI , MATSUDA SHINPEI
IPC分类号： H01M2/02 , H01M4/137 , H01M4/66 , H01M10/05
CPC分类号： H01M10/05 , H01M2/0207
摘要： PURPOSE:To obtain a sheet-shaped battery having light weight and good charge- discharge performance by using a carbon fiber sheet as a current collector, and bonding gel or powder of synthetic polyacetylene to the carbon fiber sheet. CONSTITUTION:A battery case is formed with a sheet prepared by laminating polyethylene 1 on both sides of an aluminium foil 2. A carbon fiber sheet 7 serving as a current collector is heat-bonded on the inner side of the case. Polyacetylene powder containing toluene is placed on the carbon fiber sheet 7, and a liquid absorbent material is placed thereon, and they are pressed, then toluene is removed in a vacuum. An insulating sheet 6 and a separator 5 are placed between the carbon fiber sheets, and the peripheries of the battery cases are heat-bonded to form a bag, and electrolyte is poured into the bag, then the bag is sealed. By this constitution, a battery increases performance and its weight is also decreased.
摘要翻译：目的：通过使用碳纤维片作为集电体，获得重量轻，充放电性能好的片状电池，并将合成聚乙炔的凝胶或粉末粘合到碳纤维片上。构成：电池壳体由铝箔2的两面层压聚乙烯1制成的片材。作为集电体的碳纤维片材7在壳体的内侧热粘结。将含有甲苯的聚乙炔粉末放置在碳纤维片7上，并在其上放置液体吸收材料，并将其压制，然后在真空中除去甲苯。将绝缘片6和隔片5放置在碳纤维片之间，并将电池盒的周边热粘合形成袋，并将电解液倒入袋中，然后将袋密封。通过这种结构，电池提高性能并且其重量也降低。

18. 发明专利

JPS63313466A NONAQUEOUS LI ACCUMULATOR 失效
公开(公告)号：JPS63313466A
公开(公告)日：1988-12-21
申请号：JP14875887
申请日：1987-06-15
申请人： HITACHI LTD , SHOWA DENKO KK
发明人： MIZUMOTO MAMORU , SUGIMOTO HIROYUKI , FUJITA KAZUNORI , TOYAMA ATSUKO , EBATO NOBORU , OKAYAMA AKIRA
IPC分类号： H01M4/134 , H01M4/40 , H01M4/46 , H01M4/66 , H01M10/052 , H01M10/0566
摘要： PURPOSE:To obtain a nonaqueous Li accumulator of high Coulomb efficiency and long cycle life and lifetime by constructing the negative electrode base thereof with an alloy containing aluminum and at least one element in the 3rd group of a periodic table. CONSTITUTION:A base for the negative electrode of a nonaqueous Li accumulator comprising an alloy of aluminum and at least one element in the 3rd group of a periodic table causes said element to work for increasing the capacity factor of an active material in the negative electrode and raise the Coulomb efficiency of an accumulator. On the other hand, the element in the 3rd group of the periodic table comes in between aluminum grains and stabilizes a grain boundary, thereby alleviating stress due to the repetition of expansion and contraction with charging and discharging. As a result, electrode breakdown is prevented and the cycle life of the accumulator is enhanced. As the element in the 3rd group contained in aluminum is a base for the negative electrode, rare-earth elements are recommended. In particular, ytrium is preferable and furthermore boron is as well preferable. The quantity of an additive to the 3rd group element is preferably 0.05 to 10wt.%. According to the aforesaid system, it becomes possible to obtain an accumulator of superior cycle life and long lifetime.

19. 发明专利

JPS63298968A MANUFACTURE OF SECONDARY BATTERY 失效
公开(公告)号：JPS63298968A
公开(公告)日：1988-12-06
申请号：JP13144287
申请日：1987-05-29
申请人： HITACHI LTD , SHOWA DENKO KK
发明人： TOYAMA ATSUKO , FUJITA KAZUNORI , MIZUMOTO MAMORU , SUGIMOTO HIROYUKI , EBATO NOBORU
IPC分类号： H01M4/137 , H01M4/40 , H01M4/60 , H01M10/0566
摘要： PURPOSE:To obtain a battery having high energy density and high doping level by using polyaniline synthesized in acidic solution as positive active material after electrochemically undoping and redoping. CONSTITUTION:Polyaniline is synthesized by electrolytic oxidation of 1.0M HBF4 solution containing aniline with a platinum electrode. The polyaniline is peeled from the electrode, dried, and crushed in powder. The polyaniline powder is pressed in a pellet to form a positive electrode 2. The positive electrode 2 is combined with a negative electrode 3 made of 50Li-50Al alloy in an electrolyte prepared by dissolving LiBF4 in propylene carbonate and dimethoxyethane to form a battery 1. The battery 1 is discharged, then charged at a current density of 1 mA/cm . As a result, doping level of BF4 in polyaniline is made high. The battery having high doping level and high energy density can be obtained.

20. 发明专利

JPS636742A ELECTRODE FOR SECONDARY BATTERY 失效
公开(公告)号：JPS636742A
公开(公告)日：1988-01-12
申请号：JP14954686
申请日：1986-06-27
申请人： HITACHI LTD , SHOWA DENKO KK
发明人： SUGIMOTO HIROYUKI , MATSUDA SHINPEI , FUJITA KAZUNORI , MIZUMOTO MAMORU , TOYAMA ATSUKO , EBATO NOBORU
IPC分类号： H01M4/40 , H01M4/02 , H01M4/04 , H01M4/36 , H01M4/62 , H01M4/66
摘要： PURPOSE:To increase charge-discharge cycle life by mixing a specified amount of metal having lower melting point than a Li-Al alloy to the Li-Al alloy powder, supporting on a conductive substrate, and baking to form a negative electrode for a nonaqueous electrolyte secondary battery. CONSTITUTION:10-90vo % of a metal having lower melting point than Li-Al alloy, such as short Sn fiber, based on the Li-Al alloy is mixed to an electrode active material comprising Li-Al alloy containing beta-phase. They are supported on a conductive electrode substrate, and baked at temperature at which the Li-Al alloy do not melt to form a negative electrode of nonaqueous electrolyte secondary battery. Thereby, the Li-Al alloy is strongly supported on the electrode substrate with conductivity surely retained. The charge-discharge cycle life in relatively high current density such as 5mA/cm is remarkably increased.

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